Details of the Researcher

PHOTO

Dolojan Nilo Lemuel Junio
Section
International Research Institute of Disaster Science
Job title
Assistant Professor
Degree

  • Ph.D. in Engineering (Tohoku University)

  • Master of Engineering (Tohoku University)

  • Bachelor of Science (University of the Philippines)

e-Rad No.
71030532

Research History 4

  • 2026/01 - Present
    Tohoku University　International Research Institute of Disaster Science　Assistant Professor

  • 2024/10 - 2025/12
    Tohoku University　International Research Institute of Disaster Science　Academic Research Fellow

  • 2016/09 - 2019/03
    Philippine Government　Mines and Geosciences Bureau, Department of Environment and Natural Resources　Geologist

  • 2016/02 - 2016/08
    Philippine Government　Energy Resource Development Bureau, Department of Energy　Science Research Specialist

Education 2

  • Tohoku University　Graduate School of Engineering　Department of Civil and Environmetal Engineering

    2019/10 - 2024/09

  • University of the Philippines　College of Science　National Institute of Geological Science

    2011/06 - 2015/06

Professional Memberships 4

  • The International Association of Computational Mechanics (IACM)

    2019 - Present

  • Japanese Geotechnical Society

    2019 - Present

  • Japan Society for Computational Engineering and Science

    2019 - Present

  • Geological Society of the Philippines

    2016 -

Papers 14

  1. Quantifying the impact of landform modifications on flood hazards and exposure: Event-based numerical simulations using reconstructed historical terrain

    Nilo Lemuel J. Dolojan, Reika Nomura, Kenjiro Terada, Daisuke Sugawara, Atsushi Kawauchi, Yuichi Ebina, Atsushi Suzuki, Atsuko Mizoguchi, Yukiyasu Fujii, Takeshi Kodaka, Shuji Moriguchi

    Journal of Hydrology: Regional Studies　2026/12

    DOI： 10.1016/j.ejrh.2026.103946 　

  2. A Variable-Mass Shallow Water SPH framework for debris flow simulation with erosion and entrainment Peer-reviewed

    Nilo Lemuel J. Dolojan, Kumpei Tsuji, Reika Nomura, Kenjiro Terada, Shuji Moriguchi

    Computers and Geotechnics　2026/10

    DOI： 10.1016/j.compgeo.2026.108338 　

  3. Quantification of the impact of historical land-use changes on disaster risk using numerical simulations Peer-reviewed

    MORIGUCHI Shuji, YOSHIZAWA Mika, DOLOJAN Nilo, NOMURA Reika, TERADA Kenjiro, SUGAWARA Daisuke, KAWAUCHI Atsushi, EBINA Yuichi, SUZUKI Atsushi, MIZOGUCHI Atsuko, FUJII Yukiyasu, KODAKA Takeshi

    Transactions of the Japan Society for Computational Engineering and Science　2025　(2)　20252003-20252003　2025/12/26

    Publisher: JAPAN SOCIETY FOR COMPUTATIONAL ENGINEERING AND SCIENCE

    DOI： 10.11421/jsces.2025.20252003 　

    eISSN： 1347-8826

    More details Close

    In disaster-affected areas, the impact of land use changes from the past to the present on disaster risk is often discussed, but most of these observations are qualitative. However, quantitative analysis could provide valuable information for disaster prevention and mitigation. This study aims to analyze the impact of land use changes through a series of heavy rainfall disaster simulations. Past and present models of a real region that experienced an extreme rainfall disaster were prepared, with flooding and landslides represented in the simulations. The results quantitatively demonstrated that, to reduce flood damage effectively, it is essential not only to implement basin maintenance, but also to prioritize safety in residential area selection and to proceed with land development in a careful manner. Finally, the potential advantages and limitations of the proposed approach are discussed.

  4. Influence of the Parameters in Resistance Models for 2D Shallow Water Debris Flow Simulation –A Case Study in Atami City, Japan— Peer-reviewed

    Reika Nomura, Nilo Lemuel Dolojan, Chiho Otsuka, Soma Hidano, Shuji Moriguchi, Takeshi Kodaka, Kenjiro Terada

    Journal of Disaster Research　2025/12/01

    DOI： 10.20965/jdr.2025.p1062 　

  5. Large-area slope stability analysis: Performance comparison of three-dimensional limit equilibrium methods Peer-reviewed

    Daichi Sugo, John Y. Choe, Saneiki Fujita, Nilo Lemuel J. Dolojan, Kenta Tozato, Reika Nomura, Kenjiro Terada, Eiji Tominaga, Shoji Iwanaga, Shuji Moriguchi

    Soils and Foundations　65　(6)　101703-101703　2025/12

    Publisher: Elsevier BV

    DOI： 10.1016/j.sandf.2025.101703 　

    ISSN： 0038-0806

  6. Rapid prediction of rainfall-induced landslides over a wide area aided by a simulation-based surrogate model Peer-reviewed

    Kenta Tozato, Daichi Sugo, Nilo Lemuel J. Dolojan, Reika Nomura, Kenjiro Terada, Shinsuke Takase, Kenji Kaneko, Shuji Moriguchi

    Computers and Geotechnics　2025/12

    DOI： 10.1016/j.compgeo.2025.107480 　

  7. Integrated multihazard study combining qualitative and quantitative analyses of floods, landslides, and debris flows: A case study on the impacts of Typhoon Yun-Yeung on Iwaki City, Fukushima Peer-reviewed

    Nilo Lemuel J. Dolojan, Takayuki Takahashi, Masakazu Hashimoto, Akihiro Shibayama, Reika Nomura, Kenjiro Terada, Shuji Moriguchi

    International Journal of Disaster Risk Reduction　2025/09

    DOI： 10.1016/j.ijdrr.2025.105647 　

  8. Performance Validation of Three-Dimensinonal Limit Equilibrium Method for Shallow Landslides Over a Wide Area

    D. Sugo, S. Fujita, N. Dolojan, K. Tozato, R. Nomura, S. Moriguchi, K. Terada

    IOP Conference Series: Earth and Environmental Science　1480　(1)　012039　2025/04/01

    Publisher: IOP Publishing

    DOI： 10.1088/1755-1315/1480/1/012039 　

    ISSN： 1755-1307

    eISSN： 1755-1315

    More details Close

    <jats:title>Abstract</jats:title> <jats:p>Slope stability analysis based on the limit equilibrium theory has been widely employed in practice. However, the application of the three-dimensional (3D) limit equilibrium method (LEM) for multiple slopes over a large area has not been extensively discussed. In this study, a 3D LEMs-based slope stability analysis was conducted over a large area with actual terrain data under the conditions of shallow failures that occur during heavy rainfall events. The results confirmed that the three different methods have similar trends in receiver operating characteristic (ROC) curves though each evaluated factor of safety is different. In other words, under the conditions of shallow landslides, the Hovland method, which has the lowest computational cost among 3D LEMs, can produce results comparable to those of more advanced methods only by changing the threshold of the factor of safety.</jats:p>

  9. Hydrologic-geotechnical modelling of shallow landslide and flood hazards caused by heavy rainfall Peer-reviewed

    Nilo Lemuel J. Dolojan, Shuji Moriguchi, Masakazu Hashimoto, Nguyen Xuan Tinh, Hitoshi Tanaka, Kenjiro Terada

    Engineering Geology　2023/09

    DOI： 10.1016/j.enggeo.2023.107184 　

    ISSN： 0013-7952

  10. Limit equilibrium method-based 3D slope stability analysis for wide area considering influence of rainfall Peer-reviewed

    Kenta Tozato, Nilo Lemuel J. Dolojan, Yoshiya Touge, Shuichi Kure, Shuji Moriguchi, Seiki Kawagoe, So Kazama, Kenjiro Terada

    Engineering Geology　2022/10

    DOI： 10.1016/j.enggeo.2022.106808 　

    ISSN： 0013-7952

  11. Three-dimensional limit equilibrium slope stability analysis on real slope failures caused by heavy rain and earthquake Peer-reviewed

    Saneiki FUJITA, Nilo Lemuel DOLOJAN, Shuji MORIGUCHI, Kenjiro TERADA, Takashi KYOYA

    Japanese Geotechnical Journal　17　(2)　159-169　2022/06/01

    Publisher: The Japanese Geotechnical Society

    DOI： 10.3208/jgs.17.159 　

    eISSN： 1880-6341

  12. Landslide Hazard Mapping Based on Slope Stability Analysis Considering Rainfall Spatial Uncertainty Peer-reviewed

    Kenta TOZATO, Shun SASAKI, Nilo DOLOJAN, Shuji MORIGUCHI, Kenjiro TERADA

    Transactions of the Japan Society for Computational Engineering and Science　2022　20220018　2022

    DOI： 10.11421/jsces.2022 　

  13. Mapping method of rainfall-induced landslide hazards by infiltration and slope stability analysis Peer-reviewed

    Nilo Lemuel J. Dolojan, Shuji Moriguchi, Masakazu Hashimoto, Kenjiro Terada

    Landslides　18　(6)　2039-2057　2021/06/30

    Publisher: Springer Science and Business Media {LLC}

    DOI： 10.1007/s10346-020-01617-x 　

  14. Survey report on damage caused by 2019 Typhoon Hagibis in Marumori Town, Miyagi Prefecture, Japan Peer-reviewed

    S. Moriguchi, H. Matsugi, T. Ochiai, S. Yoshikawa, H. Inagaki, S. Ueno, M. Suzuki, Y. Tobita, T. Chida, K. Takahashi, A. Shibayama, M. Hashimoto, T. Kyoya, N.L.J. Dolojan

    Soils and Foundations　2021/04

    DOI： 10.1016/j.sandf.2021.01.009 　

    ISSN： 0038-0806

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Misc. 5

  1. 2次元浅水長波型土石流解析のためのひずみ速度依存型抵抗力モデルの開発—Strain rate dependent shear resistance models for 2D shallow water type debris flow simulations

    野村 怜佳, 大塚 千穂, Nilo L. J. Dolojan, 飛彈野 壮真, 森口 周二, 小高 猛司, 寺田 賢二郎

    計算工学講演会論文集 = Proceedings of the Conference on Computational Engineering and Science / 日本計算工学会 編　30　238-241　2025/06

    Publisher: 東京 : 日本計算工学会

  2. 数値シミュレーションを用いた時代変化に伴う土地利用変遷が災害リスクに与える影響の定量化—Quantification of the impact of historical land use changes on disaster risk using numerical simulations

    森口 周二, 吉沢 美香, Dolojan Nilo, 野村 怜佳, 菅原 大介, 鈴木 温, 寺田 賢二郎

    計算工学講演会論文集 = Proceedings of the Conference on Computational Engineering and Science / 日本計算工学会 編　30　220-224　2025/06

    Publisher: 東京 : 日本計算工学会

  3. A Fundamental Study of Erosion and Channelization in Debris Flows Using a Shallow Water SPH Approach

    30　229-233　2025/06

  4. Wide-area slope stability analysis considering 3D geological structure

    森口周二, 須郷大地, どろはん にろ れむえる ふにお, 野村怜佳, 寺田賢二郎, 渡邊康介, 冨永英治, 岩永昇二, 高橋一雄

    地盤工学会誌(Web)　73　(5)　2025

    ISSN： 2435-5348

  5. Mapping method of rainfall-induced landslide hazards by infiltration and slope stability analysis (Jan, 10.1007/s10346-020-01617-x, 2021)

    Nilo Lemuel J. Dolojan, Shuji Moriguchi, Masakazu Hashimoto, Kenjiro Terada

    LANDSLIDES　18　(6)　2059-2059　2021/06

    DOI： 10.1007/s10346-021-01642-4 　

    ISSN： 1612-510X

    eISSN： 1612-5118

Presentations 18

  1. Strain rate dependent shear resistance model for debris flow simulations in 2D steep slope shallow water equation International-presentation

    Reika Nomura, So Fujisawa, Nilo Dolojan, Antonia Larese, Shuji Moriguchi, Kenjiro Terada

    17th World Congress on Computational Mechanics　2026/07/22

  2. Shallow Water SPH Framework for Regional-Scale Debris Flows with Erosion and Entrainment International-presentation

    Nilo Lemuel, J. Dolojan, Kumpei Tsuji, Reika Nomura, Kenjiro Terada, Shuji Moriguchi

    17th World Congress on Computational Mechanics　2026/07/21

  3. Optimization Strategies for Critical Slip Surface Identification in Regional-Scale Limit Equilibrium Slope Stability Analyses International-presentation

    Daichi Sugo, John, Y. Choe, Nilo Dolojan, Reika Nomura, Kenjiro Terada, Kosuke Watanabe, Shuji Moriguchi

    17th World Congress on Computational Mechanics　2026/07/21

  4. Automatic Differentiation-Aided Regional-Scale 3D Limit Equilibrium Slope Stability Analysis International-presentation

    Wittaya Jitchaijaroen, Daichi Sugo, Reika Nomura, Kenjiro Terada, Nilo Dolojan, Naruethep Sukulthanasorn, Shuji Moriguchi

    17th World Congress on Computational Mechanics　2026/07/21

  5. Steep-slope shallow water-type simulation for assessing structural impact of debris flow with the strain-rate dependent resistance force model

    Reika Nomura, So Fujisawa, Nilo Dolojan, Shuji Moriguchi, Kenjiro Terada

    31st Conference on Computational Engineering　2026/06/03

  6. Simulating Debris Flow Entrainment and Bed Erosion using Shallow Water SPH

    Nilo Dolojan, Kumpei Tsuji, Reika Nomura, Kenjiro Terada, Shuji Moriguchi

    31st Conference on Computational Engineering　2026/06/03

  7. Improving the efficiency of critical slip surface identification for regional-scale slope hazard assessment using a three-dimensional limit equilibrium method

    Daichi SUGO, John CHOE, Nilo DOLOJAN, Reika NOMURA, Kenjiro Terada, Kosuke WATANABE, Shuji MORIGUCHI

    29th Symposium on Applied Mechanics / 68th Conference on Theoretical and Applied Mechanics　2026/05/17

  8. Incorporating erosion and entrainment into a shallow water SPH framework for debris flow modeling

    Nilo Dolojan, Kumpei Tsuji, Reika Nomura, Kenjiro Terada, Shuji Moriguchi

    29th Symposium on Applied Mechanics / 68th Conference on Theoretical and Applied Mechanics　2026/05/17

  9. Effective Calculation Setup for a DEM Benchmark Problem

    Taiyo Yoshikawa, Dolojan Nilo, Reika Nomura, Shuji Moriguchi

    The 10th World Congress on Particle Technology　2026/05/12

  10. Wide-area debris flow simulation using shallow water SPH International-presentation

    Nilo Lemuel J. Dolojan, Kumpei Tsuji, Reika Nomura, Kenjiro Terada, Shuji moriguchi

    HYDROROM 2026 workshop　2026/02/26

  11. Impact Force Evaluation in 2D Debris Flow Simulations Based on Steep-Slope Shallow Water Equation International-presentation

    Reika Nomura, So Fujisawa, Nilo L Dolojan, Shuji Moriguchi, Antonia Larese, Kenjiro Terada

    HYDROROM 2026 workshop　2026/02/26

  12. Numerical simulation of debris flows employing a 2D shallow water SPH method

    Nilo Lemuel Dolojan, Reika Nomura, Kenjiro Terada, Shuji Moriguchi

    Geological Society of the Philippines Convention 2025 (GEOCON 2025)　2025/12/03

  13. Multihazard Framework Combining Quantitative and Qualitative Analyses of Hydrological Disasters Due to Heavy Rainfall International-presentation

    Nilo Lemuel Dolojan, Takayuki Takahashi, Masakazu Hashimoto, Akihiro Shibayama, Reika Nomura, Kenjiro Terada, Shuji Moriguchi

    Multihazards Symposium and Conference 2025 (APRU-MH20)　2025/11/27

  14. Multihazard framework for regional-scale simulation of rain-induced flood and landslide disasters International-presentation

    Nilo Lemuel Junio Dolojan, Takayuki Takahashi, Masakazu Hashimoto, Akihiro Shibayama, Reika Nomura, Kenjiro Terada, Shuji Moriguchi

    the 4th International Conference on Computational Engineering and Science for Safety and Environmental Problems (COMPSAFE2025)　2025/07/03

  15. Strain-rate dependent shear resistance model for debris flow simulations in 2D shallow water equation International-presentation

    Reika Nomura, Chiho Otsuka, Soma Hidano, Nilo Lemuel Dolojan, Shuji Moriguchi, Takeshi Kodaka, Kenjiro Terada

    The 4th International Conference on Computational Engineering and Science for Safety and Environmental Problems (COMPSAFE2025)　2025/07/03

  16. A Fundamental Study of Erosion and Channelization in Debris Flows Using a Shallow Water SPH Approach

    Dolojan Nilo, 野村 怜佳, 寺田 賢二郎, 森口 周二

    30th Conference on Computational Engineering　2025/06/06

  17. Strain rate dependent shear resistance models for 2D shallow water type debris flow simulations

    野村 怜佳, 大塚 千穂, Nilo Dolojan, 飛彈野 壮真, 森口 周二, 小高 猛司, 寺田 賢二郎

    30th Conference on Computational Engineering　2025/06/06

  18. Quantification of the impact of historical land use changes on disaster risk using numerical simulations

    森口 周二, 吉沢 美香, Dolojan Nilo, 野村 怜佳, 菅原 大介, 鈴木 温, 寺田 賢二郎

    野村 怜佳;大塚 千穂;Nilo Dolojan;飛彈野 壮真;森口 周二;小高 猛司;寺田 賢二郎　2025/06/06

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