Details of the Researcher

PHOTO

Daisuke Komori
Section
Green Goals Initiative
Job title
Specially Appointed Professor(Research)
Degree

  • 博士（農学）（東京農工大学）

  • 修士（農学）（東京農工大学）

Professional Memberships 3

  • 日本農業気象学会

  • 水文・水資源学会

  • 土木学会

Research Interests 4

  • Disaster prevention

  • Water Resources

  • Hydrology

  • Micro-meteorology

Research Areas 4

  • Social infrastructure (civil Engineering, architecture, disaster prevention) / Disaster prevention engineering /

  • Environmental science/Agricultural science / Agricultural environmental and information engineering / 微気象学

  • Natural sciences / Atmospheric and hydrospheric science /

  • Social infrastructure (civil Engineering, architecture, disaster prevention) / Hydroengineering / 水文学

Papers 122

  1. Flood Risk Perception in an Inherently Flood-Prone Urban Area: Based on a Land Price Analysis in the Arakawa River Downstream Area, Tokyo

    Kozo Nagami, Ryo Inoue, Daisuke Komori

    Journal of Disaster Research　20　(2)　222-232　2025/04/01

    Publisher: Fuji Technology Press Ltd.

    DOI： 10.20965/jdr.2025.p0222 　

    ISSN： 1881-2473

    eISSN： 1883-8030

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    In urban developments, inherently flood-prone areas are often developed to pursue economic benefits within land constraints. This trend has been observed worldwide, particularly in fast-growing developing countries, but has also historically occurred in developed nations, resulting in concerns about the safe development paradox and underestimation of flood risk. If these circumstances are persistently entrenched and difficult to improve, urban development in inherently flood-prone areas could be an irreversible bottleneck to sustainable urban development. This paper examines flood risk perception in the Arakawa River downstream area in Tokyo by analyzing land prices from 2005 to 2024. Over these 20 years, the official flood hazard map was legally set at the design flood level in 2005 and enhanced to the probable maximum flood level in 2015. The analysis showed statistically significant land price decline effects due to both design flood risk and probable maximum flood risk, regardless of inundation rank. This result confirmed that flood risk has been well perceived by society and residents at least over the 20 years in the area. Further analysis suggested that even before 2015, land prices significantly reflected probable maximum flood risk, likely due to past experiences. However, the 2015 legal revision of the flood hazard map amplified land price decline effects in areas with high probable maximum flood risk (above 5.0 meters of inundation). The results indicate that hazard maps can serve as effective disaster risk information tools to support sustainable urban development.

  2. Advances in Socio-hydrology and its Potential for Interdisciplinary Research in Japan: Approaches from Value Systems, Governance, Culture, and History

    Shinichiro Nakamura, Maiko Sakamoto, Soyo Takahashi, Tomoyo Chiba, Yoshiko Iizumi, Daisuke Komori, Shizuka Hashimoto, Tetsuya Hiyama, Atsuro Morita, Takehito Yoshida, Taikan Oki

    JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES　2025/02/05

    Publisher: Japan Society of Hydrology and Water Resources

    DOI： 10.3178/jjshwr.38.1829 　

    ISSN： 0915-1389

    eISSN： 1349-2853

  3. A global-scale relationship between crop yield anomaly and multiscalar drought index based on multiple precipitation data

    Vempi Satriya Adi Hendrawan, Wonsik Kim, Yoshiya Touge, Shi Ke, Daisuke Komori

    Environmental Research Letters　17　(1)　014037-014037　2022/01/01

    Publisher: IOP Publishing

    DOI： 10.1088/1748-9326/ac45b4 　

    eISSN： 1748-9326

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    <title>Abstract</title> Drought impact on crop production is well known as crop yield is strongly controlled by climate variation. Previous studies assessed the drought impact using a drought index based on a single input data set, while the variability of the drought index to the input data choice is notable. In this study, a drought index based on the standardized precipitation index with multiple timescales using several global precipitation datasets was compared with the detrended anomaly based on the global dataset of historical yield for major crops over 1981–2016. Results show that the drought index based on the ensemble precipitation dataset correlates better with the crop yield anomaly than a single dataset. Based on the drought index using ensemble datasets, global crop areas significantly affected by drought during the study period were around 23%, 8%, 30%, and 29% for maize, rice, soybean, and wheat, respectively, induced mainly by medium to longer drought timescale (5–12 months). This study indicates that most crops cultivated in dry regions were affected by droughts worldwide, while rice shows less correlation to drought as it is generally irrigated and cultivated in humid regions with less drought exposure. This study provides a valuable framework for data choices in drought index development and a better knowledge of the drought impact on agriculture using different timescales on a global scale towards understanding crop vulnerability to climate disruptions.

  4. Topographical Characteristics of Frequent Inland Water Flooding Areas in Tangerang City, Indonesia

    Eilif Kurnia Deda Djamres, Daisuke Komori, So Kazama

    Frontiers in Water　3　2021/08/13

    Publisher: Frontiers Media S.A.

    DOI： 10.3389/frwa.2021.661299 　

    ISSN： 2624-9375

  5. Integrated mapping of water-related disasters using the analytical hierarchy process under land use change and climate change issues in Laos

    Sengphrachanh Phakonkham, So Kazama, Daisuke Komori

    NATURAL HAZARDS AND EARTH SYSTEM SCIENCES　21　(5)　1551-1567　2021/05

    DOI： 10.5194/nhess-21-1551-2021 　

    ISSN： 1561-8633

    eISSN： 1684-9981

  6. Developing flood vulnerability curve for rice crop using remote sensing and hydrodynamic modeling

    Vempi Satriya Adi Hendrawan, Daisuke Komori

    INTERNATIONAL JOURNAL OF DISASTER RISK REDUCTION　54　2021/02

    DOI： 10.1016/j.ijdrr.2021.102058 　

    ISSN： 2212-4209

  7. Characteristics of the relative sampling error and its application to flux aggregation in eddy covariance measurements

    Wonsik Kim, Hyeongho Seo, Daisuke Komori, Jaeil Cho

    JOURNAL OF AGRICULTURAL METEOROLOGY　76　(2)　89-95　2020/04

    DOI： 10.2480/agrmet.D-19-00033 　

    ISSN： 0021-8588

    eISSN： 1881-0136

  8. Effect of Cellulose Nanocrystals Extracted from Oil Palm Empty Fruit Bunch as Green Admixture for Mortar

    Dianah Mazlan, Santhana Krishnan, Mohd Fadhil Md Din, Chiharu Tokoro, Nur Hafizah Abd Khalid, Izni Syahrizal Ibrahim, Hideki Takahashi, Daisuke Komori

    SCIENTIFIC REPORTS　10　(1)　2020/04

    DOI： 10.1038/s41598-020-63575-7 　

    ISSN： 2045-2322

    eISSN： 2045-2322

  9. Characteristics of the 2018 Bago River Flood of Myanmar

    Daisuke Komori, Akiyuki Kawasaki, Nanami Sakai, Natsumi Shimomura, Akira Harada, Kohei Okuda, Chit Bo Bo Win, Aye Myat Thu, Khin Yadanar Tun, Wai Toe, Win Win Zin

    JOURNAL OF DISASTER RESEARCH　15　(3)　256-266　2020/03

    DOI： 10.20965/jdr.2020.p0256 　

    ISSN： 1881-2473

    eISSN： 1883-8030

  10. Estimating the charsteristics of woody debris mechanism in terauchi dam reservoir catchment

    Hikari Yokoyama, Daisuke Komori, Thapthai Chaithong

    22nd Congress of the International Association for Hydro-Environment Engineering and Research-Asia Pacific Division, IAHR-APD 2020: "Creating Resilience to Water-Related Challenges"　2020

  11. Application of satellite precipitation data to model the extreme rainfall-induced landslide event

    Thapthai Chaithong, Daisuke Komori

    22nd Congress of the International Association for Hydro-Environment Engineering and Research-Asia Pacific Division, IAHR-APD 2020: "Creating Resilience to Water-Related Challenges"　2020

  12. Evaluation of rainfall probability to hazard map in Laos PDR

    Phrakonkham Sengphrachanh, Kazama So, Komori Daisuke, Sopha Soliya

    38th IAHR World Congress - "Water: Connecting the World"　2019/09/01

    Publisher: The International Association for Hydro-Environment Engineering and Research (IAHR)

    DOI： 10.3850/38wc092019-0979 　

  13. Distributed Hydrological Model for Assessing Flood Hazards in Laos, Journal of Water Resource and Protection Peer-reviewed

    Sengphrachanh Phrakonkham, So Kazama, Daisuke Komori, Soliya Sopha

    Journal of Water Resource and Protection　11　(8)　937-958　2019

  14. UAVを用いたダム貯水池に浮遊する水面上部の捕捉流木群形状復元

    和具麻里子, 田子洋一, 中島英敬, 小森大輔

    土木学会論文集G(環境)　27th　2019

  15. EXAMINING THE MECHANISM OF WOOD ACCUMULATION AND EXPORT IN TERAUCHI DAM CATCHMENT Peer-reviewed

    64　I_169-174　2019

    Publisher:

    ISSN： 1880-8751

  16. MODELING WOODY DEBRIS TRANSPORT AT CATCHMENT SCALE Peer-reviewed

    小森大輔, 助川友斗, CHAITHONG Thapthai, 風間聡

    河川技術論文集　25　639-644　2019

  17. Development of a Hydrological Telemetry System in Bago River Peer-reviewed

    Acierto Ralph Allen, Kawasaki Akiyuki, Zin Win Win, Oo Aung Than, Ra Khon, Komori Daisuke

    JOURNAL OF DISASTER RESEARCH　13　(1)　116-124　2018/02

    DOI： 10.20965/jdr.2018.p0116 　

    ISSN： 1881-2473

    eISSN： 1883-8030

  18. Beach morphological changes on Sendai coast by Typhoon Lionrock

    Yuta Mitobe, Hitoshi Tanaka, Akihiro Suzuki, Makoto Umeda, Daisuke Komori, Yoshiya Touge

    Proceedings of the Coastal Engineering Conference　36　(2018)　2018

    ISSN： 0161-3782

  19. Estimation of the Risk on Compound Water Related Disaster Peer-reviewed

    田中裕夏子, 風間聡, 小森大輔

    土木学会論文集 G(環境)(Web)　74　(5)　I_257-I_264　2018

    ISSN： 2185-6648

  20. COMPARISON OF GEOGRAPHICAL CHARACTERISTICS ON FREQUENT INLAND INUNDATION AREAS IN OSAKA CITY, NAGOYA CITY AND WAKAYAMA CITY Peer-reviewed

    中口幸太, 小森大輔

    土木学会論文集 B1(水工学)(Web)　74　(5)　I_1411-I_1416　2018

    ISSN： 2185-467X

  21. Landslides and precipitation characteristics during the typhoon Lionrock in Iwate prefecture, Japan Peer-reviewed

    Thapthai Chaithong, Daisuke Komori, Yuto Sukegawa, Yoshiya Touge, Yuta Mitobe, Satoshi Anzai

    International Journal of GEOMATE　14　(44)　109-114　2018

    Publisher: GEOMATE International Society

    DOI： 10.21660/2018.44.7132 　

    ISSN： 2186-2982

  22. 大阪市における内水氾濫頻発区域の分布とその特性 Peer-reviewed

    中口幸太, 小森大輔, 井上亮, 風間聡

    水文・水資源学会誌　31　(1)　9-16　2018

    DOI： 10.3178/jjshwr.31.9 　

    ISSN： 0915-1389

  23. Landslides and precipitation characteristics during the typhoon Lionrock in Iwate prefecture, Japan Peer-reviewed

    Thapthai Chaithong, Daisuke Komori, Yuto Sukegawa, Yoshiya Touge, Yuta Mitobe, Satoshi Anzai

    International Journal of GEOMATE　14　(44)　109-114　2018

    DOI： 10.21660/2018.44.7132 　

    ISSN： 2186-2982

    eISSN： 2186-2990

  24. Distributed probability of slope failure in Thailand under climate change Peer-reviewed

    Daisuke Komori, Prem Rangsiwanichpong, Naotatsu Inoue, Keisuke Ono, Satoshi Watanabe, So Kazama

    Climate Risk Management　20　126-137　2018/01/01

    DOI： 10.1016/j.crm.2018.03.002 　

    ISSN： 2212-0963

    eISSN： 2212-0963

  25. Estimating woody debris recruitment in a stream caused by a typhoon-induced landslide: a case study of Typhoon Lionrock in Iwaizumi, Iwate prefecture, Japan Peer-reviewed

    Chaithong Thapthai, Komori Daisuke, Sukegawa Yuto, Anzai Satoshi

    GEOMATICS NATURAL HAZARDS & RISK　9　(1)　1071-1084　2018

    DOI： 10.1080/19475705.2018.1490822 　

    ISSN： 1947-5705

    eISSN： 1947-5713

  26. Investigation on the response of anaerobic membrane bioreactor to temperature decrease from 25 degrees C to 10 degrees C in sewage treatment Peer-reviewed

    Ryoya Watanabe, Yulun Nie, Shinichiro Wakahara, Daisuke Komori, Yu-You Li

    BIORESOURCE TECHNOLOGY　243　747-754　2017/11

    DOI： 10.1016/j.biortech.2017.07.001 　

    ISSN： 0960-8524

    eISSN： 1873-2976

  27. Investigation on the response of anaerobic membrane bioreactor to temperature decrease from 25 degrees C to 10 degrees C in sewage treatment Peer-reviewed

    Ryoya Watanabe, Yulun Nie, Shinichiro Wakahara, Daisuke Komori, Yu-You Li

    BIORESOURCE TECHNOLOGY　243　747-754　2017/11

    DOI： 10.1016/j.biortech.2017.07.001 　

    ISSN： 0960-8524

    eISSN： 1873-2976

  28. Submerged anaerobic membrane bioreactor (SAnMBR) performance on sewage treatment: removal efficiencies, biogas production and membrane fouling Peer-reviewed

    Rong Chen, Yulun Nie, Jiayuan Ji, Tetsuya Utashiro, Qian Li, Daisuke Komori, Yu-You Li

    WATER SCIENCE AND TECHNOLOGY　76　(6)　1308-1317　2017/09

    DOI： 10.2166/wst.2017.240 　

    ISSN： 0273-1223

    eISSN： 1996-9732

  29. Assessment of special flood risk using distributed hydrological model in Laos Peer-reviewed

    Sengphrachanh Phrakonkham, So Kazama, Daisuke Komori

    Proceedings of the 37th IAHR World Congress　2　(A)　1731-1739　2017/08

  30. Optimum Abstraction of Groundwater for Sustaining Groundwater Level and Reducing Irrigation Cost Peer-reviewed

    Golam Saleh Ahmed Salem, So Kazama, Daisuke Komori, Shamsuddin Shahid, Nepal C. Dey

    WATER RESOURCES MANAGEMENT　31　(6)　1947-1959　2017/04

    DOI： 10.1007/s11269-017-1623-8 　

    ISSN： 0920-4741

    eISSN： 1573-1650

  31. Statistical analysis on the relationship between the volume of woody debris in reservoirs and the type of forest vegetation in their respective basin across Japan

    Sukegawa Yuto, Komori Daisuke, Nakao Katsuhiro

    Proceeding of Annual Conference　30　91-91　2017

    Publisher: THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

    DOI： 10.11520/jshwr.30.0_91 　

  32. Dynamics of CO2 fluxes over the heterogeneous land surface

    Kon Masafumi, Komori Daisuke, SUWANNAPAT Pimisri, Sakai Nanami, KIM Wonsik

    Proceeding of Annual Conference　30　68-68　2017

    Publisher: THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

    DOI： 10.11520/jshwr.30.0_68 　

  33. Feasibility study for a virtuous material cycle in Indonesia - A cooperation between Tohoku University and the Institute of Technology Bandung

    Ryuzo Furukawa, Daisuke Komori, Yasuhiro Fukushima, Guido Grause, Toshiaki Yoshioka, Mochammad Chaerul, Emenda Sembiring, Enri Damanhuri, Hadi Kardhana, Mohammada Farid, Herto Dwi Ariesyady, Yuichiro Fujioka

    14th International Symposium on East Asian Resources Recycling Technology, EARTH 2017　2017

  34. 河川遡上津波の数値計算の精度検証と特性把握 Peer-reviewed

    青山恭尚, Mohammad Bagus Adityawan, 三戸部佑太, 小森大輔, 田中仁

    水文・水資源学会誌　30　(1)　32-42　2017

    DOI： 10.3178/jjshwr.30.32 　

    ISSN： 0915-1389

  35. 平成 28 年台風 10 号による仙台海岸の地形変化 Peer-reviewed

    三戸部佑太, 田中仁, 鈴木彰容, 梅田信, 小森大輔, 峠嘉哉

    東北地域災害科学研究　53　211-216　2017

  36. メコン河氾濫原における地表水中ヒ素濃度推定モデルの構築 Peer-reviewed

    佐藤郁, 小森大輔

    土木学会論文集B1(水工学)　73　(4)　I_289-I_294　2017

    DOI： 10.2208/jscejhe.73.I_289 　

    ISSN： 2185-467X

  37. メコン河下流域における洪水氾濫と純一次生産力の関係 Peer-reviewed

    平賀優介, 風間聡, 小森大輔

    土木学会論文集B1(水工学)　73　(4)　I_307-I-312　2017

    DOI： 10.2208/jscejhe.73.I_307 　

    ISSN： 2185-467X

  38. 年最小気圧を用いた複合災害潜在被害額の将来推定 Peer-reviewed

    秋間将宏, 風間聡, 峠嘉哉, 小森大輔, 川越清樹, 多田毅

    土木学会論文集B1(水工学)　73　(4)　I_139-I_144　2017

    DOI： 10.2208/jscejhe.73.I_139 　

    ISSN： 2185-467X

  39. Dual phase role of composite adsorbents made from cockleshell and natural zeolite in treating river water Peer-reviewed

    Siti Nur Fatihah Moideen, Mohd Fadhil Md Din, Shahabaldin Rezania, Mohanadoss Ponraj, Azlan Abd Rahman, Low Wen Pei, Zulhilmi Ismail, Shazwin Mat Taib, Yu-You Li, Daisuke Komori

    Journal of King Saud University – Science　32　(1)　1-6　2017

    DOI： 10.1016/j.jksus.2017.06.001 　

    ISSN： 1018-3647

    eISSN： 2213-686X

  40. Assessing the effect of predicted climate change on slope stability in northern thailand: A case of doi pui Peer-reviewed

    Thapthai Chaithong, Suttisak Soralump, Damrong Pungsuwan, Daisuke Komori

    International Journal of GEOMATE　13　(38)　38-48　2017

    DOI： 10.21660/2017.38.209764 　

    ISSN： 2186-2982

    eISSN： 2186-2990

  41. Hydrological-Geotechnical model to assess the extreme rainfall-induced shallow landslides. Peer-reviewed

    Thapthai Chaithong, Daisuke Komori

    土木学会論文集G（環境）　73　(5)　I_223-I_228　2017

    Publisher:

    DOI： 10.2208/jscejer.73.I_223 　

  42. 日本全国のダム貯水池における流木流出量の統計解析 Peer-reviewed

    助川友斗, 小森大輔

    土木学会論文集G（環境）　73　(5)　I_55-I_62　2017

    DOI： 10.2208/jscejer.73.I_55 　

    ISSN： 2185-6648

  43. インドネシア・バンカラン県における地域住民参加型バイオエネルギー開発プログラムの持続可能性 Peer-reviewed

    小森大輔, Diah Pamulasari Suyanto, 峠嘉哉

    土木学会論文集G（環境）　73　(5)　I_99-I_106　2017

    DOI： 10.2208/jscejer.73.I_99 　

  44. 海岸堤防裏法尻の洗掘孔の発達過程と津波減勢効果に関する水理実験 Peer-reviewed

    金子祐人, 三戸部佑太, 田中仁, 会田俊介, 小森大輔

    土木学会論文集B2(海岸工学)　73　(2)　I_871-I_876　2017

    DOI： 10.2208/kaigan.72.I_913 　

    ISSN： 1883-8944

  45. Flood impacts on residential property process in frequently flooded areas: Evidences from Kanda river basin Peer-reviewed

    Ryo Inoue, Daisuke Komori

    15th International conference on Computers in Urban Planning and Urban Management　WedA63　2017

  46. Feasibility study for a virutous material cycle in Indonesia

    Ryuzo Furukawa, Daisuke Komori, Yasuhiro Fukushima, Guido Grause, Toshiaki Yoshioka, Mochammad Chaerul, Emenda Sembiring, Enri Damanhuri, Hadi Kardhana, Mohammada Farid, Herto Dwi Ariesyady, Yuichiro Fujioka

    Shigen Sozai Koenshu　4　No.2　2017

  47. Near Future Climatic Impact on Seasonal Runoff in Sri Lanka Peer-reviewed

    S.P. Chaminda, So, Kazama, Daisuke Komori

    20th Congress of the Asia Pacific Division of International Association for Hydeo Environment Engineering & Research　2016/08

  48. Numerical Study on Tsunami Propagation into a River Peer-reviewed

    Yasuhisa Aoyama, Mohammad Bagus Adityawan, Wahyu Widiyanto, Yuta Mitobe, Daisuke Komori, Hitoshi Tanaka

    JOURNAL OF COASTAL RESEARCH　75　(75)　1017-1021　2016/03

    DOI： 10.2112/SI75-204.1 　

    ISSN： 0749-0208

    eISSN： 1551-5036

  49. Impact of dew deposition on water flux dynamics at a tropical rainfed paddy field in the dry season Peer-reviewed

    Daisuke Komori, Wonsik Kim

    JOURNAL OF AGRICULTURAL METEOROLOGY　72　(1)　29-36　2016/03

    DOI： 10.2480/agrmet.D-14-00036 　

    ISSN： 0021-8588

    eISSN： 1881-0136

  50. 再現確率にもとづく洪水氾濫・高潮複合災害潜在被害額推定 Peer-reviewed

    秋間将宏, 風間聡, 小森大輔

    土木学会論文集B1(水工学)　72　(4)　I_267-I_272　2016

    DOI： 10.2208/jscejhe.72.I_1267 　

    ISSN： 2185-467X

  51. 河川遡上津波の数値計算精度に堤防越流が与える影響 Peer-reviewed

    青山恭尚, 三戸部佑太, 小森大輔, 田中仁

    東北地域災害科学研究　52　205-210　2016

  52. 水害危険性が地価に与える影響の変化時点推定 -地域の水害危険性認識変容の把握に向けて- Peer-reviewed

    井上亮, 永吉真也, 小森大輔

    土木学会論文集B1(水工学)　72　(4)　I_1309-I_1314　2016

    DOI： 10.2208/jscejhe.72.I_1309 　

    ISSN： 2185-467X

  53. 海岸堤防裏法尻の洗掘孔内の流れ場と流速低減効果に関する水理実験 Peer-reviewed

    金子祐人, 三戸部佑太, 乙志和孝, 黒澤辰昭, 小森大輔, 田中仁

    土木学会論文集B2(海岸工学)　72　(2)　I_913-I_918　2016

    DOI： 10.2208/kaigan.72.I_913 　

    ISSN： 1883-8944

  54. 津波越流による堤防法尻における流れ場の分類に関する水理実験 Peer-reviewed

    金子祐人, 三戸部佑太, 乙志和孝, 黒澤辰昭, 小森大輔, 田中仁

    東北地域災害科学研究　52　175-180　2016

  55. 2015 年 9 月東北豪雨による渋井川洪水氾濫の特徴 Peer-reviewed

    呉修一, 森口周二, 堀合孝博, 小森大輔, 風間聡, 田中仁

    日本自然災害科学　35　(2)　87-103　2016

    ISSN： 0286-6021

  56. Opportunities and constraints in adapting to flood and drought conditions in the Upper Chao Phraya River basin in Thailand Peer-reviewed

    Weerayuth Pratoomchai, So Kazama, Chaiwat Ekkawatpanit, Daisuke Komori

    International Journal of River Basin Management　13　(4)　413-427　2015/10/02

    DOI： 10.1080/15715124.2015.1013036 　

    ISSN： 1814-2060 1571-5124

    eISSN： 1814-2060

  57. Sharing of people's Perceptions of Past and Future Hydro-Meteorological Changes in the Groundwater Use Area Peer-reviewed

    Weerayuth Pratoomchai, So Kazama, Sujata Manandhar, Chaiwat Ekkawatpanit, Somkid Saphaokham, Daisuke Komori, Jaray Thongduang

    WATER RESOURCES MANAGEMENT　29　(10)　3807-3821　2015/08

    DOI： 10.1007/s11269-015-1030-y 　

    ISSN： 0920-4741

    eISSN： 1573-1650

  58. Local people's perceptions of climate change and related hazards in mountainous areas of northern Thailand Peer-reviewed

    Sujata Manandhar, Weerayuth Pratoomchai, Keisuke Ono, So Kazama, Daisuke Komori

    INTERNATIONAL JOURNAL OF DISASTER RISK REDUCTION　11　47-59　2015/03

    DOI： 10.1016/j.ijdrr.2014.11.002 　

    ISSN： 2212-4209

  59. FluxPro as a realtime monitoring and surveilling system for eddy covariance flux measurement Peer-reviewed

    Wonsik Kim, Akira Miyata, Ali Ashraf, Atsushi Maruyama, Amnat Chidthaisong, Chaiporn Jaikaeo, Daisuke Komori, Eiji Ikoma, Gen Sakurai, Hyeong-Ho Seoh, In Chang Son, Jaeil Cho, Jonghyeon Kim, Keisuke Ono, Korakod Nusit, Kyung Hwan Moon, Masayoshi Mano, Masayuki Yokozawa, Md. Abdul Baten, Montri Sanwangsri, Motomu Toda, Nittaya Chaun, Panya Polsan, Seiichiro Yonemura, Seong-Deog Kim, Shin Miyazaki, Shinjiro Kanae, Suban Phonkasi, Sukanya Kammales, Takahiro Takimoto, Taro Nakai, Toshichika Iizumi, Vanisa Surapipith, Warangluck Sonklin, Yong Lee, Yoshio Inoue, Youngwook Kim, Taikan Oki

    JOURNAL OF AGRICULTURAL METEOROLOGY　71　(1)　32-50　2015/03

    DOI： 10.2480/agrmet.D-14-00034 　

    ISSN： 0021-8588

    eISSN： 1881-0136

  60. Local people's perceptions of climate change and related hazards in mountainous areas of northern Thailand Peer-reviewed

    Sujata Manandhar, Weerayuth Pratoomchai, Keisuke Ono, So Kazama, Daisuke Komori

    INTERNATIONAL JOURNAL OF DISASTER RISK REDUCTION　11　47-59　2015/03

    DOI： 10.1016/j.ijdrr.2014.11.002 　

    ISSN： 2212-4209

  61. Assessing the impacts of reservoir operation to floodplain inundation by combining hydrological, reservoir management, and hydrodynamic models Peer-reviewed

    Cherry May Mateo, Naota Hanasaki, Daisuke Komori, Kenji Tanaka, Masashi Kiguchi, Adisorn Champathong, Thada Sukhapunnaphan, Dai Yamazaki, Taikan Oki

    WATER RESOURCES RESEARCH　50　(9)　7245-7266　2014/09

    DOI： 10.1002/2013WR014845 　

    ISSN： 0043-1397

    eISSN： 1944-7973

  62. タイにおける豪雨に伴う斜面崩壊危険度の将来予測 Peer-reviewed

    井上 尚達, 風間 聡, 小森 大輔

    土木学会論文集G（環境）　70　(5)　I_183-I_188　2014/09

    DOI： 10.2208/jscejer.70.I_183 　

  63. Assessing the impacts of reservoir operation to floodplain inundation by combining hydrological, reservoir management, and hydrodynamic models Peer-reviewed

    Cherry May Mateo, Naota Hanasaki, Daisuke Komori, Kenji Tanaka, Masashi Kiguchi, Adisorn Champathong, Thada Sukhapunnaphan, Dai Yamazaki, Taikan Oki

    WATER RESOURCES RESEARCH　50　(9)　7245-7266　2014/09

    DOI： 10.1002/2013WR014845 　

    ISSN： 0043-1397

    eISSN： 1944-7973

  64. 極値降雨，流出量に基づく洪水被害推定およびその将来変化 Peer-reviewed

    手塚翔也, 小野桂介, 風間聡, 小森大輔

    土木学会論文集B1(水工学)　70　(4)　439-444　2014/03

    DOI： 10.2208/jscejhe.70.I_1501 　

    ISSN： 2185-467X

  65. An evaluation of groundwater resources for the agricultural water requirements in the lower Yom and Nan River Basins in Thailand Peer-reviewed

    Weerayuth Pratoomchai, So Kazama, Naota Hanasaki, Chaiwat, Ekkaawatpanit, Daisuke Komori

    Environmental Hydraulics　118-121　2014

  66. PROJECTION OF SURFACE AND SUBSURFACE WATER RESOURCES USING GCMs IN THE UPPER CHAO PHRAYA RIVER BASIN IN THAILAND Peer-reviewed

    WEERAYUTH PRATOOMCHAI, SO KAZAMA, NAOTA HANASAKI, CHAIWAT EKKAWATPANIT, DAISUKE KOMORI

    Proceedings of the 19th IAHR-APD Congress 2014　2014

  67. Projection of extreme-rainfall-induced landslide in Thailand using three GCMs Peer-reviewed

    NAOTATSU INOUE, DAISUKE KOMORI, SO KAZAMA

    Proceedings of the 19th IAHR-APD Congress 2014　2014

  68. Long-term analysis of evapotranspiration over diverse land use area in northern Thailand Peer-reviewed

    Wonsik Kim, Daisuke Komori, Jaeil Cho

    Hydrological Research Letters　8　(1)　45-50　2014/01

    Publisher: THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

    DOI： 10.3178/hrl.8.45 　

    ISSN： 1882-3416

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    Evapotranspiration (ET) over a diverse land use area in northern Thailand was successfully estimated by long-term eddy covariance measurements. Some measurement gaps due to instrumentation problems and administrative difficulties were unavoidable. Monthly ET trends revealed a maximum of 150 ± 10 mm in June and a minimum of 60 ± 10 mm in January. The annual mean ET was estimated to be 1300 ± 140 mm. The interannual variation in ET reflects the response of the land surface to meteorological events and land use/cover changes (LUCC); however, the effect of rainfall variation on ET was greater than that of LUCC. Effective heterogeneity was evaluated using the Bowen ratio; such information will be useful for understanding the effect of land surface heterogeneity on latent and sensible heat fluxes.<br>

  69. A projection of groundwater resources in the Upper Chao Phraya River basin in Thailand Peer-reviewed

    Weerayuth Pratoomchai, So Kazama, Naota Hanasaki, Chaiwat Ekkawatpanit, Daisuke Komori

    Hydrological Research Letters　8　(1)　20-26　2013/12

    Publisher: THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

    DOI： 10.3178/hrl.8.20 　

    ISSN： 1882-3416

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    Depletion of groundwater is expected due to climate change. This study describes a catchment-scale study on projected groundwater recharge and storage in the Upper Chao Phraya River basin under changing climate scenarios. The period from 2026 to 2040 was assessed using climate projection results from global climate models (GCMs). Three GCMs, namely MIROC-ESM-CHEM (MIROC), HadGEM2-ES (HadGEM), and GFDL-ESM2M (GFDL), were used along with four greenhouse gas emission scenarios, namely RCP2.6, RCP4.5, RCP6.0, and RCP8.5, as the climate change conditions. The projected changes in groundwater recharge and storage were quantified as percent differences from the simulated recharge and storage for the reference period (1986–2000). A significant trend of decreasing mean monthly rainfall from April to June was detected for the HadGEM and the GFDL models. This change in rainfall pattern was projected to reduce the mean annual groundwater recharge (storage) by −12.9% (−1.46 km3), −9.7% (−1.35 km3), −13.9% (−1.49 km3), and −10.7% (−1.38 km3) for the RCP 2.6, 4.5, 6.0, and 8.5 scenarios, respectively. Based on the results of the relative change in groundwater storage, we expect that groundwater resources will be affected by climate change and that both groundwater recharge and storage will be reduced.<br>

  70. Difference in the Priestley-Taylor coefficients at two different heights of a tall micrometeorological tower Peer-reviewed

    Jaeil Cho, Wonsik Kim, Shin Miyazaki, Daisuke Komori, Hyungjun Kim, Kyung-Soo Han, Shinjiro Kanae, Taikan Oki

    AGRICULTURAL AND FOREST METEOROLOGY　180　97-101　2013/10

    DOI： 10.1016/j.agrformet.2013.05.007 　

    ISSN： 0168-1923

    eISSN： 1873-2240

  71. Future projection of mean river discharge climatology for the Chao Phraya River basin. Peer-reviewed

    Adisorn Champathong, Daisuke Komori, Masashi Kiguchi, Thada Sukhapunnaphan, Taikan Oki, Tosiyuki Nakaegawa

    Hydrological Research Letters　7　(2)　36-41　2013/04

    Publisher: THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

    DOI： 10.3178/hrl.7.36 　

    ISSN： 1882-3416

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    We projected future river discharge in the Chao Phraya River basin and evaluated the uncertainty in future climate projections by using different resolutions and ensemble experiments of the Atmospheric General Circulation Model of the Meteorological Research Institute (MRI-AGCM). We also obtained estimates of precipitation, evaporation, runoff, and river discharge under climate conditions projected for the late 21st century. The results show that precipitation is projected to significantly increase in the future during April to August, excluding May. The projected river discharge at Nakhon Sawan located in the central region shows a peak in September, a delay of one month after the maximum monthly mean precipitation. The estimated reduction in river discharge for January and February was robust based on all members of the 60-km mesh MRI-AGCM ensembles changing in the same direction as that of the 20-km mesh MRI-AGCM. The uncertainty assessment conducted in this study could lead to increased robustness in projected changes in mean river discharge in the late 21st century for this basin.<br>

  72. タイ東北部山間・農村地域の災害情報伝達手段における SMSの導入可能性に関する調査分析 Peer-reviewed

    小高暁, 川崎昭如, 大原美保, 近藤伸也, 小森大輔, アディソーン・サンタララック

    地域安全学会論文集　19　(0)　1-8　2013

    Publisher: Institute of Social Safety Science

    DOI： 10.11314/jisss.19.9 　

    ISSN： 1345-2088

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    <p>Sufficient supports and countermeasures from central and local governments in rural mountainous areas cannot be expected although a vulnerability to disasters at such areas has been increasing especially in developing countries including Thailand. On the other hand, the use of mobile phone has been growing more popular in such areas. This research conducted two surveys in remote mountainous areas to examine the possibility of introduction of Short Message Service (SMS) of mobile phone as a disaster information dissemination mean using Loei Province, northeastern Thailand, as a study area. Trough the surveys, recommended way of its introduction was found for improving present dissemination systems.</p>

  73. A simulation study on modifying reservoir operation rules: tradeoffs between flood mitigation and water supply. Peer-reviewed

    CHERRY MAY, R. MATEO, NAOTA HANASAKI, DAISUKE KOMORI, KEI YOSHIMURA, MASASHI KIGUCHI, ADISORN CHAMPATHONG, DAI YAMAZAKI, THADA SUKHAPUNNAPHAN, TAIKAN OKI

    IAHS Publication　362　33-40　2013

    ISSN： 0144-7815

  74. 2011年タイ王国チャオプラヤ川洪水における水文及び氾濫の状況 Peer-reviewed

    中村晋一郎, 小森大輔, 木口雅司, 西島亜佐子, 山崎大, 鈴木聡, Jeanne FERNANDEZ, 梯滋郎, Cherry MATEO, 岡根谷実里, 恒川貴弘, 湯谷啓明, 川崎昭如, 沖一雄, 沖大幹

    水文・水資源学会誌　26　(1)　38-46　2013

  75. Data quality control and assurance (QCQA) on eddy covariance flux measurement by the fractional uncertainty analysis. Peer-reviewed

    Daisuke KOMORI, Wonsik KIM, Amnat CHIDTHAISONG, Montri SANWANGSRI, Vanisa SURAPIPITH, Wilaiwan SOMPOON, Korakod NUSIT, Panya POLSON

    Southeast Asian Water Environment　5　213-220　2013

  76. チャオプラヤ川の学際踏査研究 その1 -パサック川の水害実態に関する調査報告-

    小森大輔, 川崎昭如, 森田敦郎

    生産研究　65　(4)　201-205　2013

    DOI： 10.11188/seisankenkyu.65.481 　

    ISSN： 0037-105X

  77. チャオプラヤ川における水害とその社会適応に関する学際踏査研究 その2 -地方行政・地方自治行政の災害対応についての基礎調査-

    川崎昭如, 小森大輔, 森田敦郎

    生産研究　65　(4)　206-210　2013

    DOI： 10.11188/seisankenkyu.65.487 　

    ISSN： 0037-105X

  78. チャオプラヤ川の学際踏査研究 その3 -流域社会と灌漑システムの変遷に関する予備的考察-

    森田敦郎, 小森大輔, 川崎昭如

    生産研究　65　(4)　211-216　2013

    DOI： 10.11188/seisankenkyu.65.491 　

    ISSN： 0037-105X

  79. 確率評価を用いた洪水緩和と水資源確保を考慮した季節スケールでの大ダム貯水池操作の検討

    小森大輔, Cherry May Mateo, 佐谷茜, 中村晋一郎, 木口雅司, Phonchai Klinkhachorn, Thada Sukhapunnaphan, Adisorn Champathong, 竹谷公男, 沖大幹

    第21回地球環境シンポジウム講演集　115-126　2013

  80. タイ王国の山間・農村地域における携帯電話を活用した災害情報伝達手段に関する検討 Peer-reviewed

    小高暁, 川崎昭如, 大原美保, 小森大輔, ニンワット・サラワット

    地域安全学会論文集　21　(0)　159-167　2013

    Publisher: Institute of Social Safety Science

    DOI： 10.11314/jisss.21.159 　

    ISSN： 1345-2088

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    <p>Disaster information dissemination utilizing a mobile phone is highly efficient with its higher penetration rate at rural mountainous areas in Thailand where instantaneous information is required against sudden disaster such as flash flood and landslide. However, the disaster prevention framework of Thai government has been concerned for lag of information dissemination. Furthermore, many of residents in the areas cannot receive mobile phone signal properly. Through a literature research and interviews with relevant authorities and leading mobile phone operators, we were able to clarify the current situation of the Thai government's framework development and the possibility of future introduction of mobile phone as a disaster information dissemination mean for rural mountainous areas in Thailand.</p>

  81. Projection of extreme-rainfall-induced landslide in Thailand Peer-reviewed

    Vanvisa Mama, Naotatsu Inoue, Chaiwat Ekkawatpanit, Phonchai Klinkhachorn, Somkid Saphaokham, Thattanaporn Khomsri, Kanokporn Boochabun, Teerawat Senahan, Keisuke Ono, So Kazama, Daisuke Komori

    Proceedings of The 5th Natural Convention on Water Resources Engineering　2013

  82. Application of the probability evaluation for the seasonal reservoir operation on flood mitigation and water supply in the Chao Phraya river watershed, Thailand Peer-reviewed

    Daisuke Komori, Cherry May Mateo, Akane Saya, Shinichiro Nakamura, Masashi Kiguchi, Phonchai Klinkhachorn, Thada Sukhapunnaphan, Adisorn Champathong, Kimio Takeya, Taikan Oki

    Journal of Disaster Research　8　(3)　432-446　2013

    Publisher: Fuji Technology Press

    DOI： 10.20965/jdr.2013.p0432 　

    ISSN： 1883-8030 1881-2473

    eISSN： 1883-8030

  83. Flood disaster response and civil understanding for Thai flood in 2011.

    Nakamura Shinichiro, Asako Nishijima, Komori Daisuke, Kiguchi Masashi, Kakehashi JIro, Mateo Cherry, Okaneya Misato, Oki Taikan

    Proceeding of Annual Conference　25　72-72　2012

    Publisher: THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

    DOI： 10.11520/jshwr.25.0.72.0 　

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    A massive flood, the maximum ever recorded in Thailand, struck the Chao Phraya River in 2011. We had a questionnaire investigation for citizen in Chao Phraya River basin from 4th to 9th in 2011 which consisted of two question types, first was the damage situation and disaster response, second was the civil understanding for the flood disaster. We got 142 subjects.  We show the relations between the damage situation and response, and the understanding for main cause of this flood and past floods in Thailand.

  84. Optimization of H08 Land Surface Model Parameters in the Chao Phraya River Basin to Reproduce the 2011 River Discharge

    Mateo Cherry, Hanasaki Naota, Komori Daisuke, Tanaka Kenji, Yoshimura Kei, Kiguchi Masashi, Oki Taikan

    Proceeding of Annual Conference　25　78-78　2012

    Publisher: THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

    DOI： 10.11520/jshwr.25.0.78.0 　

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    The 2011 massive flooding in Chao Phraya, Thailand prompted its government to revise its river management plan. H08 Model was one of the models chosen for this purpose due to its ability to incorporate reservoir operation in modeling. This study serves as base step of this purpose by calibrating four globally-determined parameters to suit the local conditions. The optimized parameter sets resulted to very good hydrograph fits in the daily, monthly and annual scales from 1981-2004 and 2010-2011. Nash-Sutcliffe coefficients at monthly and annual scales are 81% and 85%, respectively. Flood peaks corresponded well with that of the naturalized observed.

  85. Characteristics of the 2011 Chao Phraya River Flood in Central Thailand. Peer-reviewed

    Daisuke Komori, Shinichirou Nakamura, Masashi Kiguchi, Asako Nishijima, Dai Yamazaki, Satoshi Suzuki, Akiyuki Kawasaki, Kazuo Oki, Taikan Oki

    Hydrological Research Letters　6　41-46　2012

    Publisher: THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

    DOI： 10.3178/hrl.6.41 　

    ISSN： 1882-3416

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    A massive flood, the maximum ever recorded in Thailand, struck the Chao Phraya River in 2011. The total rainfall during the 2011 rainy season was 1,439 mm, which was 143% of the average rainy season rainfall during the period 1982–2002. Although the gigantic Bhumipol and Sirikit dams stored approximately 10 billion m3 by early October, the total flood volume was estimated to be 15 billion m3. This flood caused tremendous damage, including 813 dead nationwide, seven industrial estates, and 804 companies with inundation damage, and total losses estimated at 1.36 trillion baht (approximately 3.5 trillion yen).<br> The Chao Phraya River watershed has experienced many floods in the past, and floods on the same scale as the 2011 flood are expected to occur in the future. Therefore, to prepare of the next flood disaster, it is essential to understand the characteristics of the 2011 Chao Phraya River Flood. This paper proposes countermeasures for preventing major flood damage in the future.<br>

  86. 2011年タイ洪水における緊急災害対応: 政府機関の組織間連携と情報共有に着目して Peer-reviewed

    川崎昭如, 小森大輔, 中村晋一郎, 木口雅司, 西島亜佐子, 沖一雄, 沖大幹

    地域安全学会論文集　17　(16/18)　109-117　2012

    ISSN： 1345-2088

  87. Survey of Water Quality of the Chao Phraya River Flood in Thailand in 2011 Focusing on Flow and Status of Floodwater Peer-reviewed

    NISHIJIMA Asako, YUTANI Hiroaki, KAWASAKI Akiyuki, OKI Kazuo, NODA Keigo, TOBINO Tomohiro, CHAMINDA G. G Tushara, KATAYAMA Hiroyuki, OKI Taikan, NAKAMURA Shinichirou, KOMORI Daisuke, KIGUCHI Masashi, FERNANDEZ Jeanne, KAKEHASHI Jiro, MATEO Cherry, OKANEYA Misato, TSUNEKAWA Takahiro

    Journal of Japan Society on Water Environment　35　(11)　187-195　2012

    Publisher: Japan Society on Water Environment

    DOI： 10.2965/jswe.35.187 　

    ISSN： 0916-8958

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    A massive flood struck the Chao Phraya River Basin in Thailand from August to December in 2011. The total flood volume was estimated to be 15 billion m3, and the area of damaged agricultural land was as large as the Kanto Plain. To understand the planar and temporal characteristics of water quality of floodwater along with the flow, the authors conducted a field survey of the flood from Chai Nat, Ayutthaya to Bangkok in November and December. The results show that some indices were higher in the southern area from Ayutthaya and that the effect of the first flash was observed in an area where inundation had started a few days earlier in Bangkok. E. coli was detected in the Chao Phraya River in inundated Ayutthaya in November, suggesting that human excrement flowed into floodwater. However, it was not detected in December there, suggesting that the inflow of human excrement stopped owing to the extinction of the inundated area.

  88. タイの山間・農村地域の災害情報電達システム その1 –調査研究の概要−.

    川崎昭如, 近藤伸也, 大原美保, 小森大輔, 小高暁, Manop Kaewmoracharoen, Sangam Shrestha, Sarawut Ninsawat, Adisorn Sunthararuk

    生産研究　64　(4)　79-82　2012

    DOI： 10.11188/seisankenkyu.64.505 　

    ISSN： 0037-105X

  89. タイの山間・農村地域の災害情報電達システム その3 –行政や住民とのワークショップによる課題抽出−.

    川崎昭如, 近藤伸也, 大原美保, 小森大輔, 小高暁, Manop Kaewmoracharoen, Sangam Shrestha, Sarawut Ninsawat, Adisorn Sunthararuk

    生産研究　64　(4)　83-88　2012

    DOI： 10.11188/seisankenkyu.64.509 　

    ISSN： 0037-105X

  90. 山間・農村地域コミュニティで求められる災害情報とその伝達手段：タイ王国ルーイ県でのアンケート調査.

    小高暁, Adisorn Sunthararuk, 川崎昭如, 大原美保, 近藤伸也, 小森大輔

    生産研究　64　(4)　89-94　2012

    DOI： 10.11188/seisankenkyu.64.515 　

    ISSN： 0037-105X

  91. The Characteristic of Fractional Uncertainty on Eddy Covariance Measurement Peer-reviewed

    Wonsik Kim, Daisuke Komori, Jaeil Cho

    Journal of Agricultural Meteorology　67　(3)　163-171　2011/09/01

    DOI： 10.2480/agrmet.67.3.10 　

    ISSN： 1881-0136 0021-8588

    eISSN： 1881-0136

  92. Estimation of Daily Solar Radiation from Sunshine Duration in Thailand Peer-reviewed

    Satoshi Watanabe, Daisuke Komori, Masatoshi Aoki, Wonsik Kim, Samakkee Boonyawat, Piyapong Tongdeenok, Saman Prakarnrat, Somchai Baimoung

    JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN　89A　(1A)　355-364　2011/02

    DOI： 10.2151/jmsj.2011-A25 　

    ISSN： 0026-1165

    eISSN： 2186-9057

  93. Estimating monthly total nitrogen concentration in streams by using artificial neural network Peer-reviewed

    Bin He, Taikan Oki, Fubao Sun, Daisuke Komori, Shinjiro Kanae, Yi Wang, Hyungjun Kim, Dai Yamazaki

    JOURNAL OF ENVIRONMENTAL MANAGEMENT　92　(1)　172-177　2011/01

    DOI： 10.1016/j.jenvman.2010.09.014 　

    ISSN： 0301-4797

    eISSN： 1095-8630

  94. Tolerance of eddy covariance flux measurement. Peer-reviewed

    Kim, Wonsik, Jaeil Cho, Daisuke Komori, Masatoshi Aoki, Masayuki Yokozawa, Shinjiro Kanae, Taikan Oki

    Hydrological Research Letters　5　73-77　2011

    Publisher: THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

    DOI： 10.3178/hrl.5.73 　

    ISSN： 1882-3416

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    Eddy covariance (EC) flux measurement is the most-used technique for observation of the fluxes of sensible heat, latent heat, and carbon dioxide between the land surface and the atmospheric boundary layer. Despite the availability of plentiful EC data from numerous research projects, it is difficult to make meaningful comparisons of EC at different sites, to validate the models used, and to integrate observed data with models because the uncertainties of the method are inadequately defined. We developed a method to evaluate the uncertainties of the EC method without the need to consider individual site specifications and flux characteristics. We showed that the fractional error φ of EC (i.e., tolerance T) can be separated into random and illegitimate components. T can be used as a scale parameter for spatiotemporal stationarity, and can be defined as a rational function. We demonstrated a practical application of T analyses for two contrasting areas: a low-relief paddy field and an area of more complex land-forms where dramatic wind changes affect fluxes, and showed that T analysis provides an appropriate and effective method to determine the uncertainties in EC.<br>

  95. New Challenges on Hydro-Meteorological Prediction and Adaptation to Climate Change in Thailand. Peer-reviewed

    Taikan OKI, Nontawat, JANJAROEN, Somchai BAIMOUNG, Phonchai KLINKACHORN, Daisuke KOMORI, Masashi KIGUCHI

    9th International Symposium on Southeast Asian Water Environment　2011

  96. Long-term Analysis and Averaging Timescale Analysis of Fractional Uncertainty on Eddy Covariance Measurement. Peer-reviewed

    Wonsik Kim, Daisuke Komori, Jaeil Cho

    Journal of Research in Engineering Technology　7　(3)　105-112　2010

  97. Integrated biogeochemical modelling of nitrogen load from anthropogenic and natural sources in Japan Peer-reviewed

    Bin He, Taikan Oki, Shinjiro Kanae, Goro Mouri, Ken Kodama, Daisuke Komori, Shinta Seto

    ECOLOGICAL MODELLING　220　(18)　2325-2334　2009/09

    DOI： 10.1016/j.ecolmodel.2009.05.018 　

    ISSN： 0304-3800

    eISSN： 1872-7026

  98. The characteristic of relative error in eddy covariance measurements and its application to data quality control in rainfed paddy field Peer-reviewed

    Wonsik Kim, Daiske Komori, Jaeil Cho

    Journal of Agricultural Meteorology　65　(2)　201-207　2009

    DOI： 10.2480/agrmet.65.2.11 　

    ISSN： 1881-0136 0021-8588

    eISSN： 1881-0136

  99. Practical Estimation of Evapotranspiration in Rice Cultivation in Thailand Peer-reviewed

    Panya Polsan, Daisuke Komori, Sanguan Patamatamkul, Masatoshi Aoki, Wonsik Kim

    Hydrological Research Letters　3　41-44　2009

    Publisher: THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

    DOI： 10.3178/hrl.3.41 　

    ISSN： 1882-3416

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    A reliable, practical method for estimating the evapotranspiration associated with rice cultivation is vital for proper water management in Thailand. We investigated the possibility of estimating rice-related evapotranspiration using only daily air temperature and wind speed, as a practical method for local application in Thailand. By applying regression analysis to a theoretical investigation, we developed a set of daily based equations that estimated evapotranspiration of rice cultivation for a typical Thai plains environment during the rainy season. The estimation error of the developed equations was approximately 20% on a daily scale, and 10% on a weekly scale. Although additional validation of the derived equations is needed for application at other location and at other times of the year, the developed equations show potential for use in water management of cultivation in Thailand.

  100. 1次元ドップラーレーダ観測と粒子融解モデルによる融解中の降水粒子鉛直分布の推定 Peer-reviewed

    越田智喜, 宮崎真, 小森大輔, 小池雅洋, 鼎信次郎, 沖大幹

    水工学論文集　53　13-18　2009

    ISSN： 1880-8751

  101. Observation of hydrogen peroxide concentrations in a Japanese red pine forest Peer-reviewed

    Xuan Chen, Masatoshi Aoki, Shangxun Zhang, Jinhua Zhang, Susumu Nozoe, Daisuke Komori, Akinori Takami, Shiro Hatakeyama

    JOURNAL OF ATMOSPHERIC CHEMISTRY　60　(1)　37-49　2008/05

    DOI： 10.1007/s10874-008-9107-0 　

    ISSN： 0167-7764

  102. Melting Precipitation Particle in Tokyo - Case study of 2004 Dec. 29th -

    Koshida Tomoki, Miyazaki Shin, Komori Daisuke, Koike Masahiro, Kanae Shinjiro, Oki Taikan

    Proceeding of Annual Conference　21　5-5　2008

    Publisher: THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

    DOI： 10.11520/jshwr.21.0.5.0 　

    More details Close

    Melting Particle is important to estimate rain fall rate in winter season. There are many studies concerning melting particels relating to radar bright band or changes of dielectric constants, but few studies about quantitative observation.We observe rain or meteorological elements since July 2003 at IIS, Tokyo by using Micro Rain Radar(MRR, METEK GmbH Germany). MRR is the small, inexpensive instrument that can detect the radar reflectivity of each Doppler spectrum.In this study, we report the melting situation with comparision MRR observation to calculation of particle melting on 29th December 2004.

  103. Quality Assessment of Data from the Daegwallyeong Flux Measurement Station (DFMS) Based on Short-term Experiments Peer-reviewed

    Wonsik Kim, Masayoshi Mano, Jaeil Cho, Daisuke Komori, Gwangmin Myong, Seong-Deog Kim

    Journal of Agricultural Meteorology　64　(3)　111-120　2008

    DOI： 10.2480/agrmet.64.3.3 　

    ISSN： 1881-0136 0021-8588

    eISSN： 1881-0136

  104. 台風15号「Xangsane」による2006年Chao Phraya川洪水に関する調査報告 -Ayutthaya・Ang Thongでの現地調査-. Peer-reviewed

    児玉健, 小森大輔, 新井裕子, 鼎信次郎, 沖大幹

    水文・水資源学会誌　21　(1)　64-68　2008

    Publisher:

    ISSN： 0915-1389

  105. Measurement of dew condensation at rain-fed paddy field in Tropics. Peer-reviewed

    Daisuke KOMORI, Wonsik KIM, Masatoshi AOKI, Shinjiro KANAE, Taikan OKI

    Proceedings CD-ROM of 4th APHW Conference　21　138-138　2008

    Publisher: THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

    DOI： 10.11520/jshwr.21.0.138.0 　

  106. Estimation of Daily Evapotranspiration from Irrigated Cabbage Fields in the Mountainous Region of Northern Thailand Peer-reviewed

    Masana Yokoya, Pedram Attarod, Daisuke Komori, Masatoshi Aoki, Katsutoshi Horie, Arnon Thansiri, Samakkee Boonyawat

    Journal of Agricultural Meteorology　63　(1)　41-49　2007/09/01

    Publisher: The Society of Agricultural Meteorology of Japan

    DOI： 10.2480/agrmet.63.41 　

    ISSN： 1881-0136 0021-8588

    eISSN： 1881-0136

  107. 全球地球観測システム(GEOSS)採択研究「地球観測による効果的な水管理の先導的実現」に基づくタイ国Mae Wang流域におけるリアルタイム水文気象観測データモニタリングの展開. Peer-reviewed

    小森大輔, 生駒栄司, 宮崎真, 沖大幹, 安形康, 鼎信次郎, 里村雄彦, 白木克繁, 田中賢治, 中尾忠彦, 根本利弘, 芳村圭

    水文・水資源学会誌　20　(3)　235-241　2007

  108. Seasonal trend of water budget at rain-fed paddy field in central THAILAND. Peer-reviewed

    Daisuke KOMORI, Masatoshi AOKI, Wonsik KIM, Shin MIYAZAKI, Jaeil CHO, Samakkee BOONYAWAT, Panya POLSON, Somnimit PUKNGAM, Piyapong TONGDEENOK, Shinjiro KANAE, Taikan OKI, Katumi MUSIAKE

    AOGS 2007 4th Annual Meeting　2007

  109. NO2Dry Deposition Velocity in a Wheat Field Peer-reviewed

    Shangxun Zhang, Keisuke Nonaka, Katsutoshi Horie, Shoji Matsumura, Masatoshi Aoki, Daisuke Komori, Kazuhide Matsuda

    Journal of Agricultural Meteorology　62　(1)　33-40　2006/09/01

    DOI： 10.2480/agrmet.62.33 　

    ISSN： 1881-0136 0021-8588

    eISSN： 1881-0136

  110. Estimation of Crop Coefficients and Evapotranspiration by Meteorological Parameters in a Rain-Fed Paddy Rice Field, Cassava and Teak Plantations in Thailand Peer-reviewed

    Pedram Attarod, Masana Yokoya, Tiwa Pakoktom, Masatoshi Aoki, Daisuke Komori, Tomoyasu Ishida, Kazunari Fukumura, Samakkee Boonyawat, Piyapong Tongdeenok, Somnimitr Punkngum

    Journal of Agricultural Meteorology　62　(3)　93-102　2006/09/01

    DOI： 10.2480/agrmet.62.93 　

    ISSN： 1881-0136 0021-8588

    eISSN： 1881-0136

  111. Evapotranspiration pattern between albedo and roughness length by canopy structure

    趙 在一, 小森 大輔, 宮崎 真, 鼎 信次郎, 沖 大幹

    水文・水資源学会研究発表会要旨集　19　98-98　2006

    Publisher: 水文・水資源学会

    DOI： 10.11520/jshwr.19.0.98.0 　

  112. Seasonal and interannual trend of heat and water budget at non-irrigated paddy field in Sukhothai, Thailand. Peer-reviewed

    Daisuke Komori, Masatoshi Aoki, Wonsik Kim, Shin Miyazaki, Jaeil Cho, Attarod Pedram, Samakkee Boonyawat, Panya Polson, Somnimit Pukngam, Piyapong Tongdeenok, Shinjiro Kanae, Taikan Oki, Katsumi Musiake

    Proceedings CD-ROM of 3rd APHW Conference　ST1-49-A50-300　2006

  113. New Challenges in the Hydrometeorological Studies in the South East Asia. Peer-reviewed

    Taikan. Oki, Daisuke. Komori, Kei Yoshimura, Shin Miyazaki, Shinjiro Kanae, Takehiko Satomura, Jun Matsumoto

    Proceedings CD-ROM of 3rd APHW Conference　2006

  114. The Impact of Albedo and Roughness Length by Canopy Structure for Evapotranspiration. Peer-reviewed

    Cho, Jaeil, Daisuke Komori, Shin Miyazaki, Shinjiro Kanae, Taikan Oki

    Proceedings CD-ROM of 3rd APHW Conference　ST1-01-A06-284　2006

  115. Improvement of an air sampling system for the true eddy accumulation technique. Peer-reviewed

    Daisuke Komori, Masatoshi Aoki, Takuo Nagashima, Tomoyasu Ishida

    Journal of Agricultural Meteorology　60　(5)　529-532　2005

    Publisher:

    DOI： 10.2480/agrmet.60.263 　

    ISSN： 0021-8588

  116. Comparison among evapotranspiration of a Paddy Field, Cassava Plantation and Teak Plantation in Thailand. Peer-reviewed

    Attarod Pedram, Daisuke KOMORI, Kazushi HAYASHI, Masatoshi AOKI, Tomoyasu ISHIDA, Kazunari FUKUMURA, Samakkee BOONYAWAT, Panya POLSAN, Piyapong TONGDEENOK, Promsen SOMBOON, Somnimitr PUKNGUM

    Journal of Agricultural Meteorology　60　(5)　789-792　2005

    Publisher:

    ISSN： 0021-8588

  117. タイ国スコータイ県天水田地帯における乱流フラックス観測と乱流フラックスデータアセスメント.

    小森大輔, 金元植

    関東の農業気象　31　2-5　2005

  118. Satellite estimation of photosynthetically active radiation in Southeast Asia: Impacts of smoke and cloud cover Peer-reviewed

    H Kobayashi, T Matsunaga, A Hoyano, M Aoki, D Komori, S Boonyawat

    JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES　109　(D4)　2004/02

    DOI： 10.1029/2003JD003807 　

    ISSN： 2169-897X

  119. Development of an Air Sampling System for the True Eddy Accumulation Technique Peer-reviewed

    Daisuke Komori, Masatoshi Aoki, Tomoyasu Ishida, Satoru Suzuki, Takashi Satou, Wonsik Kim

    Journal of Agricultural Meteorology　60　(4)　263-272　2004

    DOI： 10.2480/agrmet.60.263 　

    ISSN： 1881-0136 0021-8588

  120. Long-term trends of evapotranspiration at non-irrigated paddy field in Sukhothai and teak forest in Lampang, Thailand. Peer-reviewed

    Kazushi Hayashi, Daisuke Komori, Keisuke Nonaka, Katsutoshi Horie, Masatoshi Aoki, Samakkee Boonyawat, Somnimit Pukngam, Piyapong Tongdeenok, Katsumi Musiake, Taikan Oki, Toshio Koike

    Workshop on GAME-Tropics and Hydrometeorological Studies in Thailand and Southeast Asia　253-254　2003

  121. Evapotranspiration comparison between rain-fed paddy field and cassava plantation Peer-reviewed

    Attarod Pedram, Daisuke Komori, Keisuke Nonaka, Katsutoshi Horie, Masatoshi Aoki, Samakkee Boonyawat, Somnimit Pukngam, Piyapong Tongdeenok, Katsumi Musiake, Taikan Oki, Toshio Koike

    Workshop on GAME-Tropics and Hydrometeorological Studies in Thailand and Southeast Asia　137-139　2003

  122. Seasonal trend of heat budget of non-irrigated paddy field in Sukhothai, Thailand Peer-reviewed

    Komori Daisuke, Aoki Masatoshi, Hayashi Kazushi, Samakkee Boonyawat, Panya Polson, Ishida Tomoyasu, Somnimit Pukngam, Piyapong Tongdeenok, Somboon Phomsan, Ratchanoewan Rehula, Musiake Katsumi, Koike Toshio

    Workshop on GAME-Tropics and Hydrometeorological Studies in Thailand and Southeast Asia　273-278　2002

Show all ︎Show first 5

Misc. 142

  1. 水田における乱流フラックス観測からの植物由来フラックスの抽出

    小森大輔, 古谷龍一, 坂井七海

    東北の農業気象　(65)　2021

    ISSN： 0287-1173

  2. 浸水からの危機回避 都市化と内水氾濫の発生リスク

    小森大輔

    月刊下水道　43　(7)　2020

    ISSN： 0387-6926

  3. 渦相関法の相対誤差特性とフラックス計算への適用

    金元植, 徐炯鎬, 小森大輔, 趙在一

    日本農業気象学会全国大会講演要旨/Proceedings of International Symposium on Agricultural Meteorology　2020 (CD-ROM)　2020

  4. A STUDY ON CHARACTERISTICS OF WOOD DEBRIS DEPOSITION IN MOUNTAIN STREAMS IN HIJIKAWA BASIN

    合田明弘, 小森大輔, 横山光, 山本道, 森田陽, 板倉健太, 山田正

    河川技術論文集　26 (CD-ROM)　2020

  5. MECHANISM OF RAINFALL INUNDATION CAUSED BY THE 2019 TYPHOON HAGIBIS IN IWATE PREFECTURE COASTAL ZONE, JAPAN

    小森大輔, HENDRAWAN Vempi Satriya Adi, 市塲昭裕, 山田慶太郎, 合田明弘

    土木学会論文集 B1(水工学)(Web)　76　(1)　2020

    ISSN： 2185-467X

  6. Evaluation of the Relationship Between Urban Scale and the Rainfall Inundation Risk in Five Cities of Japan

    中口幸太, 小森大輔

    地域安全学会論文集(CD-ROM)　37　2020

  7. 北上川水系のダム貯水池上流域における堆積流木量の推定

    小森大輔, 助川友斗, CHAITHONG Thapthai

    東北の農業気象　(63)　2019

    ISSN： 0287-1173

  8. 乱流フラックス観測から推定した蒸散・光合成フラックスの不確実性評価

    PIMSIRI Swannapat, 坂井七海, 小森大輔

    東北の農業気象　(63)　2019

    ISSN： 0287-1173

  9. 国土の変貌下での地域循環共生圏の形成方策(試論)~流木災害対策に資する流木資源化・利用システム開発成果をふまえて~

    松下潤, 山田正, 松井三郎, 小森大輔, 宮代知直, 青山俊介, 塚田高明

    環境衛生工学研究　33　(3)　2019

    ISSN： 0913-7025

  10. 流木の一連のプロセスに基づく,ダム貯水池に流出する流木量の推計

    小森大輔

    電力土木　(403)　2019

    ISSN： 0386-2895

  11. 日本の都市における内水氾濫リスクとその要因の空間分布

    中口幸太, 猪股亮介, 小森大輔

    水文・水資源学会研究発表会要旨集(Web)　2019　2019

  12. 流木流出モデルを用いた北日本と南日本の流木流出特性の比較

    横山光, 小森大輔, CHAITHONG Thapthai

    水文・水資源学会研究発表会要旨集(Web)　2019　2019

  13. 乱流フラックス観測と水理学的考察に基づく植物の光合成・蒸散モデルを用いた植物生理応答の理解

    坂井七海, 小森大輔, SWANNAPAT Pimsiri, 金元植

    水文・水資源学会研究発表会要旨集(Web)　2019　2019

  14. ASSESSMENT OF THE RISK ON FLOOD AND STORM SURGE WITH FLOOD CONTROL FACILITIES

    田中裕夏子, 風間聡, 多田毅, 山下毅, 小森大輔

    土木学会論文集 B1(水工学)(Web)　75　(2)　2019

    ISSN： 2185-467X

  15. EXAMINING THE MECHANISM OF WOOD ACCUMULATION AND EXPORT IN TERAUCHI DAM CATCHMENT

    横山光, 小森大輔, CHAITHONG Thapthai

    土木学会論文集 B1(水工学)(Web)　75　(2)　2019

    ISSN： 2185-467X

  16. 植物生理的不均一地表面が乱流特性に及ぼす影響

    坂井七海, 小森大輔

    東北の農業気象　(62)　23‐24　2018/03

    ISSN： 0287-1173

  17. Distribution and Characteristics of Frequent Inland Inundation Areas in Osaka City

    中口幸太, 小森大輔, 井上亮, 風間聡

    水文・水資源学会誌　31　(1)　9‐16　2018/01/05

    DOI： 10.3178/jjshwr.31.9 　

    ISSN： 0915-1389

  18. 内水氾濫頻発区域の地理的・人為的分布特性

    中口幸太, 小森大輔, 風間聡

    土木学会年次学術講演会講演概要集(CD-ROM)　72nd　ROMBUNNO.II‐015　2017/08/01

  19. 平成28年台風10号による仙台海岸の地形変化

    三戸部佑太, 田中仁, 鈴木彰容, 梅田信, 小森大輔, 峠嘉哉

    東北地域災害科学研究　53　211‐216　2017/03/01

  20. Accuracy Verification and Characterization of Numerical Simulation of Tsunami Run Up into Rivers

    青山恭尚, ADITYAWAN Mohammad Bagus, 三戸部佑太, 小森大輔, 田中仁

    水文・水資源学会誌　30　(1)　32‐42　2017/01/05

    DOI： 10.3178/jjshwr.30.32 　

    ISSN： 0915-1389

  21. ESTIMATION OF WATER-RELATED COMPOUND DISASTER POTENTIAL DAMAGE COST IN THE FUTURE USING ANNUAL MINIMUM PRESSURE

    61　Ⅰ_139-144　2017

    Publisher: 土木学会

    ISSN： 1880-8751

  22. MORPHOLOGICAL CHANGE ON SENDAI COAST BY TYPHOON NO. 10, 2016

    三戸部佑太, 田中仁, 鈴木彰容, 梅田信, 小森大輔, 峠嘉哉

    土木学会論文集 B3(海洋開発)(Web)　73　(2)　I_552‐I_557(J‐STAGE)-I_557　2017

    Publisher: Japan Society of Civil Engineers

    DOI： 10.2208/jscejoe.73.I_552 　

    ISSN： 2185-4688

    More details Close

    &nbsp;Impact of high tide and high waves due to typhoon No. 10, 2016 was discussed through field surveys under and after the typhoon event. From visual observation and debris carried in the event, maximum run-up height on Sendai Coast was estimated to be about T.P. 4 m. Severe erosion of embankment toe along the coast line near Sendai Port was observed. Due to overtopping of high waves over sand dune, some amount of sediment was transported into Gamo Lagoon.<br>&nbsp;20 ~ 30 m retreat of shoreline was observed through shoreline analysis based on aerial photographs taken before and after the typhoon. In one or two months after the event, shoreline positions almost reached to the positions before the typhoon mainly due to the contribution of the cross-shore sediment transport. However, the recovery was relatively slow in the area around Gamo Lagoon and Idoura Lagoon where the wave overtopping over the sand dunes were observed during the field survey. In addition to a river mouth and detached breakwaters, some structures revealed to coast line due to the erosion by the 2011 tsunami have effect to block the longshore sediment transport to induce faster recovery of the shore-line on the up-drift side of the longshore sediment transport.

  23. Statistical analysis of woody debris volume to specify mechanism of recruitment in dam reservoirs in Japan

    助川友斗, 小森大輔

    土木学会論文集 G(環境)(Web)　73　(5)　I_55‐I_61(J‐STAGE)　2017

    DOI： 10.2208/jscejer.73.I_55 　

    ISSN： 2185-6648

  24. RELATIONSHIP BETWEEN FLOODING AND NET PRIMARY PRODUCTIVITY IN THE LOWER MEKONG RIVER BASIN

    平賀優介, 風間聡, 小森大輔

    土木学会論文集 B1(水工学)(Web)　73　(4)　I_307‐I_312(J‐STAGE)　2017

    DOI： 10.2208/jscejhe.73.I_307 　

    ISSN： 2185-467X

  25. How Farmer's Incentive Affect Success of Community Based Bioenergy Program?

    小森大輔, SUYANTO Diah Pamulasari, 峠嘉哉

    土木学会論文集 G(環境)(Web)　73　(5)　I_99‐I_106(J‐STAGE)-106　2017

    Publisher: 土木学会

    DOI： 10.2208/jscejer.73.I_99 　

    ISSN： 2185-6648

  26. ESTIMATION OF WATER-RELATED COMPOUND DISASTER POTENTIAL DAMAGE COST IN THE FUTURE USING ANNUAL MINIMUM PRESSURE

    秋間将宏, 風間聡, 峠嘉哉, 小森大輔, 川越清樹, 多田毅

    土木学会論文集 B1(水工学)(Web)　73　(4)　I_139‐I_144(J‐STAGE)　2017

    DOI： 10.2208/jscejhe.73.I_139 　

    ISSN： 2185-467X

  27. LOCAL SCOUR BEHIND COASTAL EMBANKMENTS DUE TO TSUNAMI OVERFLOW AND ITS EFFECT ON TSUNAMI ENERGY REDUCTION

    金子祐人, 三戸部佑太, 田中仁, 会田俊介, 小森大輔

    土木学会論文集 B2(海岸工学)(Web)　73　(2)　I_871‐I_876(J‐STAGE)　2017

    DOI： 10.2208/kaigan.73.I_871 　

    ISSN： 1883-8944

  28. ESTIMATION MODELING OF ARSENIC CONCENTRATION IN SURFACE WATER IN THE MEKONG RIVER BASIN

    佐藤郁, 小森大輔

    土木学会論文集 B1(水工学)(Web)　73　(4)　I_289‐I_294(J‐STAGE)　2017

    DOI： 10.2208/jscejhe.73.I_289 　

    ISSN： 2185-467X

  29. Characteristics of heavy rainfall and flood inundation at Shibui River in Miyagi Prefecture in September 2015

    呉修一, 森口周二, 堀合孝博, 小森大輔, 風間聡, 田中仁

    自然災害科学　35　(2)　87‐103　2016/08/30

    ISSN： 0286-6021

  30. 洪水氾濫・高潮複合災害の被害額と伊勢湾台風被害額との比較

    秋間将宏, 風間聡, 小森大輔

    土木学会年次学術講演会講演概要集(CD-ROM)　71st　ROMBUNNO.II‐124　2016/08/01

  31. 日本全国のダム貯水池における流木蓄積量の統計解析

    助川友斗, 小森大輔, 風間聡

    土木学会年次学術講演会講演概要集(CD-ROM)　71st　ROMBUNNO.II‐127　2016/08/01

  32. DAD解析における確率降雨量と確率洪水流量の関係

    菅原雄太, 高雷, 風間聡, 小森大輔

    土木学会年次学術講演会講演概要集(CD-ROM)　71st　ROMBUNNO.II‐101　2016/08/01

  33. 大都市における内水氾濫頻発区域の分布とその特性―大阪市を対象とした解析―

    中口幸太, 小森大輔, 小柳津唯花, 室井佳純, 井上亮, 風間聡

    土木学会年次学術講演会講演概要集(CD-ROM)　71st　ROMBUNNO.II‐111　2016/08/01

  34. 津波越流による堤防法尻における流れ場の分類に関する水理実験

    金子祐人, 小森大輔, 三戸部佑太, 田中仁, 乙志和孝, 黒澤辰昭

    東北地域災害科学研究　52　175‐180　2016/03/01

  35. 河川遡上津波の数値計算精度に堤防越流が与える影響

    青山恭尚, 三戸部佑太, 小森大輔, 田中仁

    東北地域災害科学研究　52　205‐210　2016/03/01

  36. Recent Activities of Water-related Disaster Group

    R.A.Acierto, A.Kodaka, T.Shimozono, Y.Tajima, A.Kawasaki, D.Komori, N.Kohtake, Win Win Zin

    ICUS Newsletter article　(Vol.15-4)　2016

  37. 海岸堤防裏法尻の洗掘孔内の流れ場と流速低減効果に関する水理実験

    金子祐人, 三戸部佑太, 乙志和孝, 黒澤辰昭, 田中仁, 小森大輔

    土木学会論文集 B2(海岸工学)(Web)　72　(2)　I_913‐I_918(J‐STAGE)　2016

    DOI： 10.2208/kaigan.72.I_913 　

    ISSN： 1883-8944

  38. 水害危険性が地価に与える影響の変化時点推定‐地域の水害危険性認識変容の把握に向けて‐

    井上亮, 永吉真也, 小森大輔

    土木学会論文集 B1(水工学)(Web)　72　(4)　I_1309‐I_1314(J‐STAGE)　2016

    DOI： 10.2208/jscejhe.72.I_1309 　

    ISSN： 2185-467X

  39. 再現確率にもとづく洪水氾濫・高潮複合災害潜在被害額推定

    秋間将宏, 風間聡, 小森大輔

    土木学会論文集 B1(水工学)(Web)　72　(4)　I_1267‐I_1272(J‐STAGE)　2016

    DOI： 10.2208/jscejhe.72.I_1267 　

    ISSN： 2185-467X

  40. 気候変動によるタイ国の斜面崩壊影響評価

    小森大輔, 井上尚達, 小野桂介, 渡部哲史, 風間聡

    地球環境シンポジウム講演集　23rd　37-42　2015/09/02

    Publisher: 土木学会

  41. 米代川流域における分布型流出モデルのピーク流量誤差原因の評価

    高雷, 風間聡, 小森大輔

    地球環境シンポジウム講演集　23rd　239-242　2015/09/02

    Publisher: 土木学会

  42. 渦相関法の不確実性特性

    金元植, 小森大輔

    日本農業気象学会全国大会講演要旨　2015　113　2015

  43. タイにおける豪雨に伴う斜面崩壊危険度の将来予測

    井上尚達, 風間聡, 小森大輔

    地球環境研究論文集　22　I.183-I.188　2014/09/03

    DOI： 10.2208/jscejer.70.I_183 　

  44. タイにおける豪雨に伴う斜面崩壊危険度の将来予測

    井上尚達, 風間聡, 小森大輔

    土木学会年次学術講演会講演概要集(CD-ROM)　69th　ROMBUNNO.II-068　2014/08/01

  45. FLOOD DAMAGE ESTIMATIONS BASED ON EXTREME PRECIPITATION AND DISCHARGE AND VARIATION IN THE FUTURE

    手塚翔也, 小野桂介, 風間聡, 小森大輔

    土木学会論文集 B1(水工学)(Web)　70　(4)　I.1501-I.1506 (J-STAGE)　2014

    DOI： 10.2208/jscejhe.70.I_1501 　

    ISSN： 2185-467X

  46. 乱流フラックスデータの品質評価手法の定量的評価

    小森大輔, 金元植

    日本農業気象学会全国大会講演要旨　2014　129　2014

  47. タイ東北部山間・農村地域の災害情報伝達手段におけるSMSの導入可能性に関する調査分析

    小高暁, 川崎昭如, 大原美保, 近藤伸也, 小森大輔, SUNTHARARUK Adisorn

    地域安全学会論文集　19　(19/21)　(9)-(16)-16　2013/11

    Publisher: Institute of Social Safety Science

    DOI： 10.11314/jisss.19.9 　

    ISSN： 1345-2088

    More details Close

    <p>Sufficient supports and countermeasures from central and local governments in rural mountainous areas cannot be expected although a vulnerability to disasters at such areas has been increasing especially in developing countries including Thailand. On the other hand, the use of mobile phone has been growing more popular in such areas. This research conducted two surveys in remote mountainous areas to examine the possibility of introduction of Short Message Service (SMS) of mobile phone as a disaster information dissemination mean using Loei Province, northeastern Thailand, as a study area. Trough the surveys, recommended way of its introduction was found for improving present dissemination systems.</p>

  48. タイ王国の山間・農村地域における携帯電話を活用した災害情報伝達手段に関する検討

    小高暁, 川崎昭如, 大原美保, 小森大輔, SARAWUT Ninsawat

    地域安全学会論文集　21　(19/21)　159-167　2013/11

    Publisher: Institute of Social Safety Science

    DOI： 10.11314/jisss.21.159 　

    ISSN： 1345-2088

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    <p>Disaster information dissemination utilizing a mobile phone is highly efficient with its higher penetration rate at rural mountainous areas in Thailand where instantaneous information is required against sudden disaster such as flash flood and landslide. However, the disaster prevention framework of Thai government has been concerned for lag of information dissemination. Furthermore, many of residents in the areas cannot receive mobile phone signal properly. Through a literature research and interviews with relevant authorities and leading mobile phone operators, we were able to clarify the current situation of the Thai government's framework development and the possibility of future introduction of mobile phone as a disaster information dissemination mean for rural mountainous areas in Thailand.</p>

  49. 確率評価を用いた洪水緩和と水資源確保を考慮した季節スケールでの大ダム貯水池操作の検討

    小森大輔, MATEO Cherry May, 佐谷茜, 中村晋一郎, 木口雅司, KLINKHACHORN Phonchai, SUKHAPUNNAPHAN Thada, CHAMPATHONG Adisorn, 竹谷公男, 沖大幹

    地球環境シンポジウム講演集　21st　115-125　2013/09/17

    Publisher: 土木学会

  50. Hydrological Characteristics of The 2011 Chao Phraya River Flood Disaster in Thailand

    小森大輔, 山田朋人

    北海道地区自然災害科学資料センター報告　26　46-51　2013/03/31

    ISSN： 0914-1111

  51. 2011年タイ王国Chao Phraya川洪水における水文及び氾濫の状況

    中村晋一郎, 小森大輔, 木口雅司, 西島亜佐子, 山崎大, 鈴木聡, FERNANDEZ Jeanne, 梯滋郎, MATEO Cherry, 岡根谷実里, 恒川貴弘, 湯谷啓明, 川崎昭如, SUKHAPUNNAPHAN Thada, KLINKHACHORN Phonchai, 沖一雄, 沖大幹

    水文・水資源学会誌　26　(1)　38-46　2013/01/05

    ISSN： 0915-1389

  52. Hydrological and flooding situation of Chao Phraya River in 2011

    NAKAMURA Shinichiro, KOMORI Daisuke, KIGUCHI Masashi, NISHIJIMA Asako, YAMAZAKI Dai, SUZUKI Satoshi, FERNANDEZ Jeanne, KAKEHASHI Jiro, MATEO Cherry, OKANEYA Misato, TSUNEKAWA Takahiro, YUTANI Hiroaki, KAWASAKI Akiyuki, SUKHAPUNNAPHAN Thada, KLINKHACHORN Phonchai, OKI Kazuo, OKI Taikan

    水文・水資源学会誌　26　(1)　38-46　2013/01/05

    ISSN： 0915-1389

  53. 2011年タイ国チャオプラヤ川流域で発生した 洪水災害の水文学的特徴

    小森大輔, 山田朋人

    北海道地区自然災害科学センター報告　26　2013

    ISSN： 0914-1111

  54. Application of the probability evaluation for the seasonal reservoir operation on flood mitigation and water supply in the Chao Phraya river watershed, Thailand

    Daisuke Komori, Cherry May Mateo, Akane Saya, Shinichiro Nakamura, Masashi Kiguchi, Phonchai Klinkhachorn, Thada Sukhapunnaphan, Adisorn Champathong, Kimio Takeya, Taikan Oki

    Journal of Disaster Research　8　(3)　432-446　2013

    Publisher: Fuji Technology Press

    DOI： 10.20965/jdr.2013.p0432 　

    ISSN： 1883-8030 1881-2473

    eISSN： 1883-8030

  55. 渦相関法で観測されたフラックスデータの時間平均手法の提案

    金元植, 横沢正幸, 小森大輔, 徐炯鎬

    日本農業気象学会全国大会講演要旨　2013　95　2013

  56. Interdisciplinary investigation on the Chao Phraya River Part 3: Preliminary analysis of the changes in Communities and the Irrigation System

    森田敦郎, 小森大輔, 川崎昭如

    生産研究　65　(4)　491-496 (J-STAGE)　2013

    DOI： 10.11188/seisankenkyu.65.491 　

    ISSN： 0037-105X

  57. Interdisciplinary investigation on the Chao Phraya River Part 2: Preliminary survey on disaster management system in local level

    川崎昭如, 小森大輔, 森田敦郎

    生産研究　65　(4)　487-489 (J-STAGE)　2013

    DOI： 10.11188/seisankenkyu.65.487 　

    ISSN： 0037-105X

  58. Interdisciplinary investigation on the Chao Phraya River Part 1: Preliminary analysis on the Characteristics of the Pasak River flood, an important tributary of the Chao Phraya River

    小森大輔, 川崎昭如, 森田敦郎

    生産研究　65　(4)　481-485 (J-STAGE)　2013

    DOI： 10.11188/seisankenkyu.65.481 　

    ISSN： 0037-105X

  59. 2011年タイ王国チャオプラヤ川洪水における緊急災害対応―政府機関の組織間連携と情報共有に着目して―

    川崎昭如, 小森大輔, 中村晋一郎, 木口雅司, 西島亜佐子, 沖一雄, 沖大幹, 目黒公郎

    地域安全学会論文集　(16/18)　109-117　2012/11

    ISSN： 1345-2088

  60. タイ・チャオプラヤ川における上流域水収支の長期解析に関する研究

    小槻峻司, 田中賢治, 小森大輔

    土木学会年次学術講演会講演概要集(CD-ROM)　67th　ROMBUNNO.II-150　2012/08/01

  61. Information Channels Thailand Floods 2011 2011年タイ・チャオプラヤ川における洪水被害

    木口 雅司, 中村 晋一郎, 小森 大輔

    ARDEC : world agriculture now　(46)　29-33　2012/03

    Publisher: 日本農業土木総合研究所海外農業農村開発技術センター :

    ISSN： 1880-909X

  62. 2011年タイ・チャオプラヤ川における洪水被害

    木口雅司, 中村晋一郎, 小森大輔, 沖大幹

    ARDEC　(46)　29-33　2012/03

    ISSN： 1880-909X

  63. チャオプラヤ川大洪水の教訓 タイの洪水と向き合う

    沖大幹, 小森大輔

    JST News　8　(11)　10-11　2012/02/01

    ISSN： 1349-6085

  64. 水害軽減に関する国際協力 2011年タイ国チャオプラヤ川大洪水の実態および課題と対策

    小森大輔, 木口雅司, 中村晋一郎

    河川　(786)　18-25　2012/01/20

    ISSN： 0287-9859

  65. 2011年タイ国チャオプラヤ川大洪水の実態および課題と対策

    小森大輔, 木口雅司, 中村晋一郎

    河川　(1月号)　2012

    ISSN： 0287-9859

  66. 2011年タイ国チャオプラヤ川大洪水はなぜ起こったか

    小森大輔

    盤谷日本人商工会議所所報　(2月号)　2-10　2012

    Publisher: 盤谷日本人商工会議所

  67. 2011年タイ・チャオプラヤ川における洪水被害

    木口雅司, 中村晋一郎, 小森大輔, 沖 大幹

    ARDEC　(2月)　2012

  68. Survey of Water Quality of the Chao Phraya River Flood in Thailand in 2011 Focusing on Flow and Status of Floodwater

    西島亜佐子, 中村晋一郎, 小森大輔, 木口雅司, FERNANDEZ Jeanne, 梯滋郎, MATEO Cherry, 岡根谷実里, 恒川貴弘, 湯谷啓明, 川崎昭如, 沖一雄, 乃田啓吾, 飛野智宏, CHAMINDA G. G Tushara, 片山浩之, 沖大幹

    水環境学会誌(Web)　35　(11)　187-195 (J-STAGE)　2012

    DOI： 10.2965/jswe.35.187 　

    ISSN： 1881-3690

  69. Disaster information dissemination system in rural and agricultural mountainous area in Thailand Part 3 - Consultation workshop with local governments and communities-

    川崎昭如, 近藤伸也, 大原美保, 小森大輔, 小高暁, KAEWMORACHAROEN Manop, SHRESTHA Sangam, NINSAWAT Sarawut, SUNTHARARUK Adisorn

    生産研究　64　(4)　509-513 (J-STAGE)-513　2012

    Publisher: Institute of Industrial Science The University of Tokyo

    DOI： 10.11188/seisankenkyu.64.509 　

    ISSN： 0037-105X

    eISSN： 1881-2058

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    In order to design and develop a disaster information dissemination system, localization based on current local conditions and needs should be carefully considered. To clarify the current problems and needs at the local community level, we conducted a field investigation using Loei Province as a study area. First, we interviewed provincial and district officers in charge of disaster management in the region to clarify the flow of disaster information from the national government to the local community. We then organized consultation workshops in two villages in order to understand the current means of disaster information collection and what systems are desirable in the future.[This abstract is not included in the PDF]

  70. Disaster information dissemination system in rural and agricultural mountainous area in Thailand Part 1 -Project outline-

    川崎昭如, 近藤伸也, 大原美保, 小森大輔, 小高暁, KAEWMORACHAROEN Manop, SHRESTHA Sangam, NINSAWAT Sarawut, SUNTHARARUK Adisorn

    生産研究　64　(4)　505-508 (J-STAGE)-508　2012

    Publisher: Institute of Industrial Science The University of Tokyo

    DOI： 10.11188/seisankenkyu.64.505 　

    ISSN： 0037-105X

    eISSN： 1881-2058

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    People in the northeastern part of Thailand have been affected by floods, storms, landslides and drought, resulting in delayed economic development and social problems. In order to address these issues, we hope to propose a disaster information dissemination system for improving local communitys’ disaster response ability in rural and agricultural mountainous areas where support from the national and local governments cannot be expected. To clarify the current problems and needs at the local community level, we conducted a field investigation using Loei Province as a study area. This article summarizes the outline of the whole project.[This abstract is not included in the PDF]

  71. Disaster information and its dissemination means required for communities in a rural mountainous area - Questionnaire survey at Loei province in Thailand-

    小高暁, サンタララックアディソーン, 川崎昭如, 大原美保, 近藤伸也, 小森大輔

    生産研究　64　(4)　515-520 (J-STAGE)-520　2012

    Publisher: Institute of Industrial Science The University of Tokyo

    DOI： 10.11188/seisankenkyu.64.515 　

    ISSN： 0037-105X

    eISSN： 1881-2058

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    In these days, rapid development of geospatial technology including web-mapping and social networks makes people possible to obtain various types of disaster information. However, it is difficult to obtain such information with a same means for people in rural mountainous areas lagging behind from urban area. In addition, it may be possible that those people cannot understand or utilize sufficiently on the information. Therefore, this report presents a result of questionnaire survey conducted to understand required disaster information and its dissemination means for local community in rural mountainous area.[This abstract is not included in the PDF]

  72. FluxPro:実時間フラックス観覧システム

    金元植, 徐炯鎬, 小森大輔, 間野正美, 小野圭介, 宮田明

    日本農業気象学会全国大会講演要旨　2012　41　2012

  73. Estimation of river discharges with remotely sensed imagery

    Kazuo Oki, Kohei Hashimoto, Jiro Kakehashi, Panya Polsan, Shinichiro Nakamura, Daisuke Komori, Taikan Oki

    32nd Asian Conference on Remote Sensing 2011, ACRS 2011　4　2856-2859　2011/12/01

  74. The Characteristic of Fractional Uncertainty on Eddy Covariance Measurement

    Wonsik Kim, Daisuke Komori, Jaeil Cho

    Journal of Agricultural Meteorology　67　(3)　163-171　2011/09/01

    DOI： 10.2480/agrmet.67.3.10 　

    ISSN： 1881-0136 0021-8588

    eISSN： 1881-0136

  75. A Study on Real-time Flood Estimation in Tropical Poorly-gauged Basins

    中西健一郎, 田中賢治, 小森大輔, 沖大幹, 小尻利治

    京都大学防災研究所年報(CD-ROM)　(52)　ROMBUNNO.52B,78　2009/10/30

    ISSN： 0386-412X

  76. A Study on Real-time Flood Estimation in Tropical Poorly-gauged Basins

    中西 健一郎, 田中 賢治, 小森 大輔, 沖 大幹, 小尻 利治

    京都大学防災研究所年報. B = Disaster Prevention Research Institute Annuals. B　52　(0)　795-806　2009/06/01

    Publisher: 京都大学防災研究所

    ISSN： 0386-412X

    More details Close

    本稿では気象・水文観測網の密度が十分でない，いわゆる低密度観測流域における洪水対策として，およそ500km2縲・000km2規模の流域を対象とし，レーダーによる降水の詳細な空間分布観測値を用いて，標高と重心からの距離の2変数によって効果的な観測点を特定できる指標を算定し実流域で検証した． 加えて衛星による全球降水マップの有効性について議論した．全球降水マップは過小評価傾向や見逃しがあるが，一定の地上観測があれば洪水対策に対して有効であると判明した．This study aims to develop a new installation guideline of rain-gauge networks for the flood management in poorly gauged basins, whose area is about 500 ~ 1000 km2. So in this study a guideline was estimated with de-tailed precipitation distribution data from OmKoi radar data, and was validated with gauged data in MaeWang basin. In addition The GSMaP (Global Satellite Mapping of Precipitation) product is expected to detect flood events in un-gauged basins, but generally underestimate the amount of precipitation. So Bias in GSMaP was corrected with in-situ precipitation, and then GSMaP had a potential for flood detection.

  77. 1次元ドップラーレーダ観測と粒子融解モデルによる融解中の降水粒子鉛直分布の推定

    越田智喜, 宮崎真, 小森大輔, 小池雅洋, 鼎信次郎, 沖大幹

    水工学論文集(CD-ROM)　53　ROMBUNNO.62　2009/02/22

    ISSN： 1880-8751

  78. Seasonal trend of water budget at rain-fed paddy field in central-Thailand

    Komori Daisuke, Aoki Masatoshi, Kim Wonsik, Miyazaki Shin, Cho Jaeil, Boonyawa Samakkee, Polson Panya, Pukngam Somnimit, Tongdeenok Piyapong, Kanae Shinjiro, Oki Taikan, Musiake Katumi

    Advances in Geosciences: Volume 11: Hydrological Science (HS)　365-375　2009/01/01

    Publisher: World Scientific Publishing Co.

    DOI： 10.1142/7073-vol11 　

  79. The characteristic of relative error in eddy covariance measurements and its application to data quality control in rainfed paddy field

    Wonsik Kim, Daiske Komori, Jaeil Cho

    Journal of Agricultural Meteorology　65　(2)　201-207　2009

    DOI： 10.2480/agrmet.65.2.11 　

    ISSN： 1881-0136 0021-8588

    eISSN： 1881-0136

  80. 渦相関法のフラックス測定誤差特性

    金元植, 小森大輔

    農業環境工学関連学会合同大会講演要旨集(CD-ROM)　2009　ROMBUNNO.A41　2009

    ISSN： 1880-2087

  81. 水田の蒸発散量推定式の改良

    伊倉宏弥, PANYA‐POLSAM, 青木正敏, 瀬戸泰輔, 小森大輔, パーコークトム ティワ, SAMAKKEE‐BOONYAWAT, POORPIPOPE‐KASAEMSAP

    日本農業気象学会全国大会講演要旨　2008　50　2008/03/20

    DOI： 10.14877/agrmet2.08sp.0.50.0 　

  82. 台風15号「Xangsane」による2006年Chao Phraya川洪水に関する調査報告~Ayutthaya・Ang Thongでの現地調査~

    児玉健, 小森大輔, 新井裕子, 鼎信次郎, 沖大幹

    水文・水資源学会誌　21　(1)　64-68　2008/01/05

    ISSN： 0915-1389

  83. 分布型流出モデルを用いたリアルタイム洪水予測システムの構築

    中西健一郎, 田中賢治, 小森大輔, 沖, 大幹, 小尻利治

    水文・水資源学会2008年度研究発表会要旨集, pp.46-47　2008

  84. Quality Assessment of Data from the Daegwallyeong Flux Measurement Station (DFMS) Based on Short-term Experiments

    Wonsik Kim, Masayoshi Mano, Jaeil Cho, Daisuke Komori, Gwangmin Myong, Seong-Deog Kim

    Journal of Agricultural Meteorology　64　(3)　111-120　2008

    DOI： 10.2480/agrmet.64.3.3 　

    ISSN： 1881-0136 0021-8588

    eISSN： 1881-0136

  85. A Study on Real-time Flood Estimation in Tropical Poorly-gauged Basins

    中西 健一郎, 田中 賢治, 小森 大輔

    京都大学防災研究所年報　(52)　795-805　2008

    Publisher: 京都大学防災研究所

  86. Estimation of Daily Evapotranspiration from Irrigated Cabbage Fields in the Mountainous Region of Northern Thailand

    Masana Yokoya, Pedram Attarod, Daisuke Komori, Masatoshi Aoki, Katsutoshi Horie, Arnon Thansiri, Samakkee Boonyawat

    Journal of Agricultural Meteorology　63　(1)　41-49　2007/09/01

    DOI： 10.2480/agrmet.63.41 　

    ISSN： 1881-0136 0021-8588

    eISSN： 1881-0136

  87. 北タイMaeWang流域の流出予測精度向上に向けた地球観測データの有効性検討

    中西健一郎, 田中賢治, 小森大輔, 沖大幹, 池淵周一

    土木学会関西支部年次学術講演会講演概要集(CD-ROM)　2007　II-6-43　2007/05/26

    Publisher: THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

    DOI： 10.11520/jshwr.20.0.43.0 　

  88. 全球地球観測システム(GEOSS)採択研究「地球観測による効果的な水管理の先導的実現」に基づくタイ国Mae Wang流域におけるリアルタイム水文気象観測データモニタリングシステムの展開

    小森大輔, 生駒栄司, 宮崎真, 沖大幹, 安形康, 鼎信次郎, 里村雄彦, 白木克繁, 田中賢治, 中尾忠彦, 根本利弘, 芳村圭

    水文・水資源学会誌　20　(3)　235-241　2007/05/05

    ISSN： 0915-1389

  89. Development of Real-time Hydrometeorological Observation System at Mae Wang Basin in Thailand Based on Global Earth Observation System of Systems (GEOSS) Project, "Effective Water Management by Earth Observation"

    KOMORI Daisuke, IKOMA Eiji, MIYAZAKI Shin, OKI Taikan, AGATA Yasushi, KANAE Shinjiro, SATOMURA Takehiko, SIRAKI Katsusige, TANAKA Kenji, NAKAO Tadahiko, NEMOTO Toshihiro, YOSHIMURA Kei

    Journal of Japan Society of Hydrology & Water Resources　20　(3)　235-241　2007/05/05

    Publisher: 水文・水資源学会

    ISSN： 0915-1389

  90. Evaluation of the Effectiveness of the Earth Observation Data on the Improvement of Runoff Prediction in the Mae Wang Basin in Northern Thailand

    中西健一郎, 田中賢治, 小森大輔, 沖大幹, 池淵周一

    京都大学防災研究所年報(CD-ROM)　(50)　ROMBUNNO.50B,75　2007/04

    ISSN： 0386-412X

  91. 熱帯季節林域における二酸化炭素フラックスの季節変動

    金元植, 間野正厚, 横沢正幸, 小森大輔, 鼎信次郎, 沖大幹

    日本生態学会大会講演要旨集　54th　276　2007/03/19

  92. アカマツ森林内のモノテルペン高度分布

    野副晋, 谷晃, ZHANG Shangxun, 小森大輔, 青木正敏

    Eco-Engineering　19　(1)　39-48　2007/01/31

    DOI： 10.11450/seitaikogaku.19.39 　

    ISSN： 1347-0485

  93. Profiles of Monoterpene Concentrations in a Japanese Red Pine Forest

    NOZOE Susumu, TANI Akira, ZHANG Shangxun, KOMORI Daisuke, AOKI Masatoshi

    Eco-Engineering　19　(1)　39-48　2007/01/31

    Publisher: The Society of Eco-Engineering

    DOI： 10.11450/seitaikogaku.19.39 　

    ISSN： 1347-0485

    More details Close

    Monoterpenes are highly reactive biogenic volatile organic compounds (BVOCs) with O&lt;SUB&gt;3&lt;/SUB&gt;, OH radical, and NO&lt;SUB&gt;3&lt;/SUB&gt; radical. Although these reactions may occur in the aerial space under tree canopies, only a few studies about monoterpene behavior under the canopy are available. In the present study, concentration profiles of six monoterpenes (&amp;alpha;-pinene, myrcene, &lt;I&gt;&amp;beta;&lt;/I&gt;-pinene, sabinene, limonene and &lt;I&gt;&amp;beta;&lt;/I&gt;-phellandrene) were measured in a Japanese red pine forest in June, July and August, 2002. Their concentrations were usually low in the daytime, but high in the nighttime. Monoterpenes were stored under the canopy during nighttime and the amount as a total of the six monoterpenes was calculated as more than 700 nmol m&lt;SUP&gt;-2&lt;/SUP&gt;. The variations of their concentration ratios were also observed. The concentration ratio of myrcene to &lt;I&gt;&amp;beta;&lt;/I&gt;-pinene was usually low in nighttime and high in daytime. It ranged from 0.27 to 2.28. Correlations between the ratio of myrcene/&lt;I&gt;&amp;beta;&lt;/I&gt;-pinene and O&lt;SUB&gt;3&lt;/SUB&gt; concentration or NO&lt;SUB&gt;3&lt;/SUB&gt; radical production rate were 0.78 or 0.54, respectively. These results suggested the possibility that the low concentration ratio in the nighttime was due to decomposing of monoterpenes during the storage period under the canopy. The stored monoterpenes would influence the next-morning fluxes since these fluxes include stored and decomposed monoterpenes during the nighttime. The evaluation of the amounts of stored and decomposed monoterpenes will be important when measuring monoterpene fluxes or determining monoterpene contributions to aerosol formation in the forests.

  94. 北タイMaeWang流域の流出予測精度向上に対する地球観測データの有効性の検討

    中西健一郎, 田中賢治, 小森大輔, 沖大幹, 池淵周一

    水文・水資源学会2007年度研究発表会要旨集 , pp. 28-29　2007

  95. Takフラックス観測サイト(TFMS)におけるランダムエラーの分析

    金元植, 間野正美, 小森大輔, 趙在一, 宮崎真, 鼎信次郎, 沖大幹

    農業環境工学関連学会合同大会講演要旨集(CD-ROM)　2007　P99　2007

    ISSN： 1880-2087

  96. 水田におけるCO2フラックスと蒸発散フラックスの関連性に関する研究

    瀬戸泰輔, PAKOKTOM Tiwa, 小森大輔, 田川良子, 林和志, TEERAPAT Wongraksa, PHAKWILAIKEAT Preeyapha, POONPIPOPE Kasaemsap, SAMAKKEE Boonyawat, 横家将納, 堀江勝年, 青木正敏

    農業環境工学関連学会合同大会講演要旨集(CD-ROM)　2007　H51　2007

    ISSN： 1880-2087

  97. MODISとAMSR‐Eを併用した水田湛水図の時空間的高精度化

    竹内渉, 小森大輔, 沖大幹, 安岡善文

    生研フォーラム 宇宙からの地球環境モニタリング論文集　16th　115-116　2007

  98. Improvement on a spatio-temporal resolution on rice paddy inundation mapping with MODIS and AMSR-E

    竹内渉, 小森大輔, 沖大幹, 安岡善文

    日本写真測量学会学術講演会発表論文集　2006　3-4　2006/11/23

  99. Estimation of Crop Coefficients and Evapotranspiration by Meteorological Parameters in a Rain-Fed Paddy Rice Field, Cassava and Teak Plantations in Thailand

    Pedram Attarod, Masana Yokoya, Tiwa Pakoktom, Masatoshi Aoki, Daisuke Komori, Tomoyasu Ishida, Kazunari Fukumura, Samakkee Boonyawat, Piyapong Tongdeenok, Somnimitr Punkngum

    Journal of Agricultural Meteorology　62　(3)　93-102　2006/09/01

    DOI： 10.2480/agrmet.62.93 　

    ISSN： 1881-0136 0021-8588

    eISSN： 1881-0136

  100. NO2Dry Deposition Velocity in a Wheat Field

    Shangxun Zhang, Keisuke Nonaka, Katsutoshi Horie, Shoji Matsumura, Masatoshi Aoki, Daisuke Komori, Kazuhide Matsuda

    Journal of Agricultural Meteorology　62　(1)　33-40　2006/09/01

    DOI： 10.2480/agrmet.62.33 　

    ISSN： 1881-0136 0021-8588

    eISSN： 1881-0136

  101. NO2Dry Deposition Velocity in a Wheat Field

    Shangxun Zhang, Keisuke Nonaka, Katsutoshi Horie, Shoji Matsumura, Masatoshi Aoki, Daisuke Komori, Kazuhide Matsuda

    Journal of Agricultural Meteorology　62　(1)　33-40　2006/09/01

    Publisher: The Society of Agricultural Meteorology of Japan

    DOI： 10.2480/agrmet.62.33 　

    ISSN： 1881-0136 0021-8588

    eISSN： 1881-0136

  102. Estimation of Crop Coefficients and Evapotranspiration by Meteorological Parameters in a Rain-Fed Paddy Rice Field, Cassava and Teak Plantations in Thailand

    Pedram Attarod, Masana Yokoya, Tiwa Pakoktom, Masatoshi Aoki, Daisuke Komori, Tomoyasu Ishida, Kazunari Fukumura, Samakkee Boonyawat, Piyapong Tongdeenok, Somnimitr Punkngum

    Journal of Agricultural Meteorology　62　(3)　93-102　2006/09/01

    Publisher: The Society of Agricultural Meteorology of Japan

    DOI： 10.2480/agrmet.62.93 　

    ISSN： 1881-0136 0021-8588

    eISSN： 1881-0136

  103. Investigating an integrated approach on rice paddy monitoring over Asia with MODIS and AMSR-E

    竹内渉, 小森大輔, 沖大幹, 安岡善文

    日本リモートセンシング学会学術講演会論文集　40th　173-174　2006/05/11

  104. タイ北部山岳地域におけるキャベツ畑の蒸発散に関する研究(2)

    横家将納, 青木正敏, 堀江勝年, ATTAROD Pedram, ARNON Thansiri, TIWA Pakoktom, 小森大輔, SAMAKKEE Boonyawat

    農業環境工学関連学会合同大会講演要旨集(CD-ROM)　2006　KOGISHITSU(1),12NICHI,DAI1SESSHON,3　2006

    ISSN： 1880-2087

  105. Evaluation of the effectiveness of the Earth observation data on the improvement of runoff prediction in the Mae Wang basin in northern Thailand

    中西 健一郎, 田中 賢治, 小森 大輔, 沖 大幹, 池淵 周一

    京都大学防災研究所年報　(50)　737-747　2006

    Publisher: 京都大学防災研究所

    ISSN： 0386-412X

    More details Close

    本研究では北タイのメーワン流域における現地観測データを用いて，地球観測データが流出予測精度に与える影響を調べる。また，観測データが無い状況に対しては，メソ気象モデルMM5出力値を用いる。これらのデータを陸面過程モデルSiBUC及び分布型流出モデルHydro-BEAMに入力し流出計算を行うことで，地球観測データが流出予測に与える影響を評価する。さらに，観測データが欠測であった状況を仮定し流出計算を行うことで，現地観測サイトの重要性についても議論する。In this study, the impacts of the Earth Observation Data on the improvement of runoff prediction are investigated using the in-situ measurement data in the Mae Wang river basin in northern Thailand. For the case of un-gauged condition, precipitation data is given from the output of mesoscale meteorological model (MM5). SiBUC land surface scheme and Hydro-BEAM are used for runoff simulation. For the gauged condition, 11 raingauges are used. Furthermore, several rainfall datasets were prepared considering the &quot;missing&quot; of some observation. Through the comparison of simulated discharge, importance of each observation site is discussed.

  106. 大気境界層におけるガスおよび微小粒子に対する捕集方法の検討

    山中弘之, 長島拓央, 小森大輔, 張尚勲, 張京花, 林和志, 田川良子, 青木正敏, 堀江勝年, 原宏

    農業環境工学関連7学会合同大会講演要旨集　2005　610　2005/09/12

    ISSN： 1880-2087

  107. タイ国中央部天水田における乱流フラックス観測とデータアセスメント

    小森大輔, 金元植

    関東の農業気象　(31)　2-5　2005/09

  108. Development of an Air Sampling System for the True Eddy Accumulation Technique

    Daisuke Komori, Masatoshi Aoki, Tomoyasu Ishida, Satoru Suzuki, Takashi Satou, Wonsik Kim

    Journal of Agricultural Meteorology　60　(4)　263-272　2004

    DOI： 10.2480/agrmet.60.263 　

    ISSN： 1881-0136 0021-8588

  109. エアロゾル沈着フラックスの新しい計測手法―REA法による水田での計測―

    青木正敏, 泉克幸, 長島拓央, 張京香, 小森大輔, 内山政弘, 尾保手朋子, 松本幸雄, 大原利真

    大気環境学会年会講演要旨集　45th　677　2004

  110. Development of an Air Sampling System for the True Eddy Accumulation Technique

    Daisuke Komori, Masatoshi Aoki, Tomoyasu Ishida, Satoru Suzuki, Takashi Satou, Wonsik Kim

    Journal of Agricultural Meteorology　60　(4)　263-272　2004

    Publisher: The Society of Agricultural Meteorology of Japan

    DOI： 10.2480/agrmet.60.263 　

    ISSN： 1881-0136 0021-8588

  111. タイにおける水田およびチーク林の蒸発散量長期動態

    林和志, 小森大輔, 野中圭介, 堀江勝年, 青木正敏, TONGDEENOK P, PUKNGAM S, BOONYAWAT S

    日本農業気象学会全国大会日本生物環境調節学会大会合同大会講演要旨　2003　85　2003/09/08

  112. 渦集積サンプリングシステムの開発 (2) システム稼動試験結果

    小森大輔, 長島拓央, 青木正敏, 石田朋靖

    日本農業気象学会全国大会日本生物環境調節学会大会合同大会講演要旨　2003　200　2003/09/08

  113. 大気中エアロゾルフラックスの測定

    長島拓央, 青木正敏, 小森大輔, 内山政弘, 松本幸雄, 尾保手朋子, 泉克幸, 大木良幸, 大原利真

    日本農業気象学会全国大会日本生物環境調節学会大会合同大会講演要旨　2003　199　2003/09/08

  114. タイ国における日射量の観測結果 (3) 乾季のエアロゾルの影響について

    青木正敏, 小森大輔, 黄龍川, 石田朋靖, BOONYAWAT S, HARVTAITHIP P, KEAWJAMPA N, POLSAN P

    日本農業気象学会全国大会日本生物環境調節学会大会合同大会講演要旨　2003　50　2003/09/08

  115. エアロゾル乾性沈着フラックス測定手法の開発

    尾保手朋子, 長島拓央, 小森大輔, 青木正敏, 泉克幸, 松本幸雄, 内山政弘, 大原利真

    エアロゾル科学・技術研究討論会　20th　91-92　2003/07/29

  116. 乾性沈着フラックス測定としての緩和渦集積法(REA法)の統計的検討

    松本幸雄, 内山政弘, 福山力, 須賀伸介, 泉克幸, 長島拓央, 小森大輔, 青木正敏

    大気環境学会年会講演要旨集　44th　518　2003

  117. 渦集積サンプリングシステムの開発―北海道標津牧草地での観測結果―

    小森大輔, 長島拓央, 青木正敏, 石田朋靖

    大気環境学会年会講演要旨集　44th　399　2003

  118. 大気エアロゾルの沈着フラックス測定のための新しい試み 緩和渦集積法の応用

    長島拓央, 青木正敏, 小森大輔, 内山政弘, 松本幸雄, 福山力, 泉克幸, 大木良幸, 大原利真

    大気環境学会年会講演要旨集　44th　524　2003

  119. The development of the sampling system for True Eddy Accumulation method : the result from the measurement at the grassland area in Shibetsu, Hokkaido

    Komori Daisuke, Nagashima Takuo, Aoki Masatoshi, Ishida Tomoyasu

    大気環境学会年会講演要旨集　(44)　399-399　2003

    Publisher: 大気環境学会

  120. A Statistical Study on REA Method for Estimating Dry Deposition Fluxes

    Matsumoto Yukio, Uchiyama Masahiro, Fukuyama Tsutomu, Suga Shinsuke, Izumi Katsuyuki, Nagashima Takuo, Komori Daisuke, Aoki Masatoshi

    大気環境学会年会講演要旨集　(44)　518-518　2003

    Publisher: 大気環境学会

  121. New approach to the measurement of the deposition flux for atmospheric aerosols : Application of a relaxed eddy accumulation method

    Nagashima Takuo, Aoki Masatoshi, Komori Daisuke, Uchiyama Masahiro, Matsumoto Yukio, Fukuyama Tsutomu, Obote Tomoko, Izumi Katsuyuki, Ooki, Ohara Toshimasa

    大気環境学会年会講演要旨集　(44)　524-524　2003

    Publisher: 大気環境学会

  122. 蒸発散量の推定に関する研究 (14) 気孔コンダクタンスおよび植生高さによる推定モデル補正式

    青木正敏, 三船弘猛, 小森大輔, MATLI P, SAMAKKEE B, TONGDEENOK P, 秀島好昭

    日本農業気象学会全国大会日本生物環境調節学会大会合同大会講演要旨　2002　49　2002/08/06

  123. 渦集積サンプリングシステムの開発

    小森大輔, 青木正敏, 石田朋靖, 鈴木覚, 秀島好昭, 佐藤隆

    日本農業気象学会全国大会日本生物環境調節学会大会合同大会講演要旨　2002　47　2002/08/06

  124. 1F1345 Regional distribution of solar radiation in Thailand and the effect of atmospheric turbidity on it

    Huang L

    大気環境学会年会講演要旨集　(43)　335-335　2002

    Publisher: 大気環境学会

  125. 2D1130 Development of true eddy accumulation sampling system for trace gas flux measurement

    Komori D, Aoki M, Ishida T, Suzuki S, Hidesima Y, Satou T

    大気環境学会年会講演要旨集　(43)　403-403　2002

    Publisher: 大気環境学会

  126. 2D1145 A statistical derivation of the flux evaluation equation in the Relaxed Eddy Accumulation Method

    Matsumoto Y, Uchiyama M, Fukuyama T, Suga S, Komori D, Aoki M

    大気環境学会年会講演要旨集　(43)　404-404　2002

    Publisher: 大気環境学会

  127. 牧草畑における群落光合成フラックスと蒸発散フラックスの関係

    青木正敏, 小森大輔, マトリ ポール, 秀島好昭, 中山博敬, 和田通英, 国田博之, 佐藤隆

    日本農業気象学会全国大会日本生物環境調節学会大会合同大会講演要旨　2001　145　2001/06/27

  128. タイ全土11地点の日射長期観測結果

    青木正敏, 石田朋靖, 小森大輔, 虫明功, BOONYAWAT S, BHATHISUNTORN S, BAIMOUNG S

    日本農業気象学会全国大会日本生物環境調節学会大会合同大会講演要旨　2001　27　2001/06/27

  129. 畑地の土壌呼吸フラックス経時変化と環境要因の関係 ビート畑とダイズ畑の比較

    野中圭介, MATLI P, 小森大輔, 青木正敏, 秀島好昭, 中山博敬, 丸谷聖一, 川合文人

    日本農業気象学会全国大会日本生物環境調節学会大会合同大会講演要旨　2001　329　2001/06/27

  130. 立川市街地における人工廃熱・CO2・NO2フラックス動態

    堀江勝年, 小森大輔, 張尚勲, 青木正敏, 坂爪鈴香

    日本農業気象学会全国大会日本生物環境調節学会大会合同大会講演要旨　2001　172　2001/06/27

  131. 土壌水分張力による蒸発散量の推定 (3) 3種土壌のPF 蒸発散量関係のパラメータ比較

    小森大輔, 熊六政, 堀江勝年, 青木正敏

    日本農業気象学会全国大会日本生物環境調節学会大会合同大会講演要旨　2001　155　2001/06/27

  132. タイ国キャッサバ畑における水収支の長期モニタリング (1)

    福村一成, 石田朋靖, 青木正敏, 小森大輔, BOONYAWAT S, 小池俊雄

    日本農業気象学会全国大会日本生物環境調節学会大会合同大会講演要旨　2001　268　2001/06/27

  133. 土壌水分張力による蒸発散量の推定 (2) 推定パラメータの土壌間の比較

    小森大輔, 永吉信二郎, 熊六政, 堀江勝年, 青木正敏

    日本農業気象学会全国大会日本生物環境調節学会大会合同大会講演要旨　2000　204-205　2000/08/22

  134. 蒸発散量の推定に関する研究 (13) 葉の気孔コンダクタンスおよび植生高さによるボーエン比推定モデルの補正

    青木正敏, 永吉信二郎, 小森大輔, BOONYAWAT S, TONGDEENOK P, PUKNGAM S, 秀島好昭

    日本農業気象学会全国大会日本生物環境調節学会大会合同大会講演要旨　2000　216-217　2000/08/22

  135. タイ国 GAME-Tropics 水蒸気フラックス観測結果 : 蒸発散量と気孔抵抗やその他の植生パラメータとの結合

    青木 正敏, 永吉 信二郎, 小森 大輔, 千村 隆弘, BOONYAWA Samakkee, PUKNGAM Somnimrt, TONGDEENOK Piyapong, POLSAN Panya

    大会講演予講集　77　117-117　2000/05/24

  136. タイ国GAME‐Tropics水蒸気フラックス観測結果 蒸発散量と気孔抵抗やその他の植生パラメータとの結合

    青木正敏, 永吉信二郎, 小森大輔, 千村隆弘, BOONYAWA S, PUKNGAM S, TONGDEENOK P, POLSAN P

    日本気象学会大会講演予稿集　(77)　117　2000/05

  137. 立川市の市街地における人工顕熱とCO2フラックスの動態

    堀江勝年, 永吉信二郎, 小森大輔, 青木正敏, 横山仁, 中村圭亨

    大気環境学会年会講演要旨集　41st　251　2000

  138. 1H1000 Fluxes of artificial heat and CO_2 in urban area in Tachikawa City

    Horie K, Chen S, Nagayoshi S, Komori K, Aoki M, Yokoyama H, Nakamura Y

    大気環境学会年会講演要旨集　(41)　251-251　2000

    Publisher: 大気環境学会

  139. 土壌水分張力による蒸発散量の推定

    永吉信二郎, 青木正敏, 小森大輔, 熊六政, 秀島好昭, 中山博敬

    日本農業気象学会全国大会日本生物環境調節学会大会合同大会講演要旨　1999　50-51　1999/07/28

  140. 熱収支ボーエン比法と渦相関法の顕熱比較

    小森大輔, 青木正敏, 永吉信二郎

    日本農業気象学会全国大会日本生物環境調節学会大会合同大会講演要旨　1999　54-55　1999/07/28

  141. タイ王国における各種植生間の蒸発散量比較

    永吉信二郎, 小森大輔, 千村隆宏, BOONYAWAT S, PUKNGAM S, TONGDEENOK P, 広田知良, POLSAN P, 虫明功臣

    日本気象学会大会講演予稿集　(75)　76　1999/04/26

  142. タイ王国における各種植生間の蒸発散量比較

    永吉 信二郎, 小森 大輔, 青木 正敏, 千村 隆宏, BOONYAWAT Samakkee, PUKNGAM Somnimitr, TONGDEENOK Piyapong, 広田 知良, POLSAN Panya, 沖 大幹, 虫明 功臣

    大会講演予講集　75　B157　1999/04

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Books and Other Publications 2

  1. 河川工学

    風間, 聡, 小森, 大輔(防災工学), 峠, 嘉哉, 糠澤, 桂, 横尾, 善之, 渡辺, 一也(水理学)

    理工図書　2020/09

    ISBN: 9784844608844

  2. タイ2011年大洪水

    執筆者 玉田芳史, 小森大輔, 名, 編者 玉田芳史

    2013/09/27

    ISBN: 9784258300228

Research Projects 9

  1. タイ国の洪水常襲地における寺院を用いた低頻度巨大災害リスク評価

    小森 大輔

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 挑戦的研究(萌芽)

    Institution: 東北大学

    2022/06/30 - 2025/03/31

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    本研究の目的は，緩流河川であるタイ国チャオプラヤ川流域の洪水常襲地に古くから建立する寺院の嵩上げ高さから，寺院空間の安全性を担保しうる立地特性を明らかにし，高田・桑子（2016）の仮説「ある土地において信仰上の重要な役割を持つ神社は，自然災害発生時においても安全性を担保しうる立地特性を有している」を実証することが目的である。 洪水常襲地の抽出に関しては、過去の浸水域（中村・小森ら, 2012）を基に、洪水常襲地を抽出しデータベース化した。対象地域として、チャオプラヤ川下流域のアユタヤ市（17寺院）、チャイナット市（18寺院）、中流域のナコンサワン市（17寺院）、スコータイ市（24寺院）、上流域のチェンマイ市（17寺院）の洪水常襲地を選定し、対象地域に古くから建立する寺院（計83寺院）を特定した。 洪水氾濫解析に関しては、これまでに収集した現地現業機関による過去50年分の水文気象観測データより確率降水量および確率流量を算定した。これらの確率水文量を基に洪水氾濫シミュレーションを行うために、チャオプラヤ川流域における土地利用情報を収集・データベース化し、降雨流出氾濫モデル（RRIモデル）を用いて、特定した寺院における洪水氾濫解析を進めた。 現地調査に関しては、上述した特定した寺院における浸水深の確率評価を参照しながら、対象寺院の過去の被災履歴・嵩上げ高さの現地調査をするとともに、現地自治体や地域住民に被災経験の有無や自然災害に対する意識に関してヒアリングを現地協力研究者と合同して実施した。

  2. Study on chage of hydrological processes and environments in small rivers under the population decline

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Tohoku University

    2020/04/01 - 2024/03/31

  3. 流木流出統合モデルによる気候変動リスクアセスメントの先導

    小森 大輔

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 国際共同研究加速基金(国際共同研究強化(A))

    Institution: 東北大学

    2021 - 2023

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    今年度は、気候変動も考慮した流木流出統合モデルへの高度化および河川生物多様性評価への応用に向けて、対象地域の選定および検証データの整備を進めた。 モデリング班に関しては、中国の災害データベースを基に、中国全土を対象に1997-2019年の期間に土砂災害が多発している地域を抽出し、四川省が最も多く南中国で多発していることがわかった。次に、中国全土の降水量データ整備し、1981-2020年の40ヶ年を統計期間として年最大日降水量の2-1000年確率降水量を解析した。中国東北部および中国南部にて大きい確率降水量が生じることがわかった。これらのデータに基づき、本研究の対象地域として四川省を選定した。次に、対象地域の降水量データおよび統合モデル相互比較プロジェクト（CMIP）の公開データを参照し将来気候の降水量データを海外共同研究者と共同で整備した。現在、基課題で開発した流木流出統合モデルの適用に向けて、モデルパラメータの整備を進めている。また、斜面崩壊物理モデルの検証データの整備として、基課題で開発した衛星画像を用いた対象地域の斜面崩壊域抽出を進めている。 生物多様性班に関しては、研究協力者がこれまでに生物多様性調査研究を実施してきた流域（名取川流域、耳川流域）を対象に、基課題で開発した流木流出統合モデルの適用に向けて、降水量データ、モデルパラメータおよび検証データを整備した。現在、対象地域のダム貯水池流域を対象にヒンジ幅を用いて異常時流出流木量を抽出し、モデル適用可能性の検討を進めている。

  4. Estimation of potential large wood export in Japan

    Komori Daisuke

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2019/04/01 - 2022/03/31

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    A quantitative model for analyzing the mass balance of large wood and its export on an annual scale at a watershed scale was developed for the first time in the world. The model consists of two frameworks: the rainfall-induced analytical shallow landslide model for the large wood recruitment, and the double storage function with the lumped hydrological method at a watershed scale for the large wood entrainment. For the model application to the whole of Japan, field surveys at recent disaster areas with large wood export, model verification and improvements were carried out. Finally, a method for the risk assessment of large wood export on a watershed scale, considering its storage and , was established using the model.

  5. Sustainable assessment of global inland lakes using terrestrial water circulation model

    Touge Yoshiya

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2017/04/01 - 2022/03/31

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    This study addressed the change of endorheic inland lakes. The hydrological analysis was conducted for "a cause of the change," and field surveys and observations were for "environmental impacts resulting from the change." In the terrestrial water circulation model, we performed a water circulation analysis considering climate change and human activities in the whole basin. The model could show that the water level of Lake Turkana was displaced to different levels before and after the low rainfall period around the year 2000. In addition to surveying the damage caused by the water level change in the surrounding area, meteorological observations and in situ measurements of soil moisture were conducted. Satellite monitoring of actual irrigated areas was also conducted, and the impacted area by severe drought in 2001 was accurately detected in the Aral Sea basin.

  6. Development of a model estimating river biomass using hydrological and periphyton models to control ecological resources

    Kazama So

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Tohoku University

    2016/04/01 - 2020/03/31

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    Distributed model of periphyton was developed using a nutrient transport model and a water temperature model based on a distributed hydrological model. The model accuracy is RMSE=11.5mg/m2 monthly. Positive correlations were observed between the population densities and eDNA concentrations for orders Ephemeroptera, Plecoptera, and Dipetra. Field observations showed significant and positive correlation between periphyton and stream insect biomass. The variation of periphyton biomass as producer influenced consumer biomass in the higher energy position of ecological pyramid.

  7. Understanding Monin-Obukhov Similarity over the heterogeneous land surface

    Komori Daisuke, Chidthaisong Amnat, Sonklin Warangluck, Sanwangsri Montri, Suwannapat Pimsiri

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Young Scientists (B)

    Institution: Tohoku University

    2015/04/01 - 2018/03/31

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    I developed an evaluation method of spatial-temporal uncertainty for turbulence measurements. Furthermore, I developed new evaluation method for partitioning Evapotranspiration/CO2 fluxes into evaporation/transpiration and photosynthesis/soil respiration. I clarified that CO2 flux and H2O flux in the dry season were not often possible of Monin-Obukhov similarity due to the plant physiological heterogeneity and soil surface water heterogeneity.

  8. Study on policies for gaining popularity of rivers

    Kazama So

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2015/04/01 - 2018/03/31

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    Discussion with government administrators, academic researchers, and high school students through SNS analysis, evaluation of economic value on river scenery, analysis of travel guide books provides the following conclusions to gain river popularity. First, it is necessary to improve accessibility and facilities to sightseeing places of river to make environment to use rivers easily except losing nature and landscape. Second, it is important to make places for playing river activities like fishing and canoe. Third, these places should have hydrophilic facilities for people to understand rivers well. Camp site is one of the most attractive places for river visitors.

  9. Evaluation of impact by land fill in flood plains in the Mekong River

    So Kazama

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2015/04/01 - 2018/03/31

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    Landsat images can detect landfill areas in flood plains of the Mekong River. Multiple regression analysis shows correlation coefficient 0.34 using existence or nonexistence as an objective variable and annual maximum water depth, straight distance from central Phnom Penh to landfill area as explanatory variables. Landfill areas by wasted solids have 25 times more total phosphorus and 4 times more COD than those of floodplains. Landfill areas having factories have more iron than that of floodplains. One area has 21 times more than WHO standard of iron. Land use of agriculture can be classified by annual flood duration. NPP with 134kgC/m2 in flood plain will be lost in the case of change from present natural vegetation to agricultural area.

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