Research keywords (6)：
水資源工学
, 河川工学
, 水文学
, Water Resource Engineering
, River Engineering
, Hydrology
Research theme for competitive and other funds (20)：
2023 - 2027 Creating a virtual experimental environment for planned inundation to optimize watershed flood control and its application to areas with advanced issues
2022 - 2027 Impact of large-scale flood events on ocean circulation
2021 - 2024 Searching for the mechanism of river channel network formation using the maximum entropy production principle and challenge to mathematical morphology
2020 - 2024 Study on chage of hydrological processes and environments in small rivers under the population decline
2020 - 2023 Accurate and continual water-level prediction in small rivers using inverse estimation method of rainfall-runoff processes
2015 - 2021 適応策評価のための土砂災害リスクマップの高度利用技術開発
2016 - 2020 Development of a model estimating river biomass using hydrological and periphyton models to control ecological resources
2016 - 2019 Uniting field study and modeling study for breaking through scale issues in rainfall-runoff processes
2009 - 2011 Investigating physiographic controls on the shapes of flow duration curves and mapping of groundwater recharge potentials
2006 - 2007 河川おける難分解性有機物輸送量に着目した流域の人間活動許容量の算出
2005 - 2006 降雨流出の物理過程を反映する次世代水収支モデルの実流域への適用に関する研究
2002 - 2004 治水・利水・環境を評価するための総合的水循環モデルの開発
1999 - 2001 GISデータに基づく河川流出モデルの構築
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Papers (97)：
Ryuto UGAJIN, Yoshiyuki YOKOO, Takahiro SAYAMA. A VIRTUAL EXPERIMENT ON THE EFFECTIVENESS OF PLANNED INUNDATION AS A WATERSHED FLOOD CONTROL STRATEGY IN A DECLINING POPULATION AREA. 2025
Sheikh Hefzul Bari, Yoshiyuki Yokoo, Chris Leong. A brief review of recent global trends in suspended sediment estimation studies. Hydrological Research Letters. 2024. 18. 2. 51-57
Mayu Tateno, Yoshiyuki Yokoo, Chris Leong. Estimating suspended sediment discharge and its annual mass balance in the Japanese first-class watersheds. Hydrological Research Letters. 2023. 17. 4. 92-97
Chris Leong, Yoshiyuki Yokoo. A multiple hydrograph separation technique for identifying hydrological model structures and an interpretation of dominant process controls on flow duration curves. Hydrological Processes. 2022. 36. 4
C. Leong, Y. Yokoo. A step toward global-scale applicability and transferability of flow duration curve studies: A flow duration curve review (2000-2020). Journal of Hydrology. 2021. 603
Estimating sand, silt and clay transport at the Abukuma River estuary for a comprehensive understanding of suspended sediment dynamics from the watershed to the Pacific Ocean
(Japan Geoscience Union Meeting 2024 (JpGU2024) 2024)
Estimating Annual Transports and Mass Balance of Suspended Solids in the Japanese First-class Watersheds
(Asia Oceania Geosciences Society 20th Annual Meeting (AOGS 2023) 2023)
Preliminary Study on River Bedform Modeling Using Reaction-advection-diffusion Equation
(Asia Oceania Geosciences Society 20th Annual Meeting (AOGS 2023) 2023)
Numerical Investigation on the Appearances of “Spatial Representativity” in Rainfall-runoff Processes
(Asia Oceania Geosciences Society 20th Annual Meeting (AOGS 2023) 2023)
Understanding drought risk in the coastal region of Bangladesh using gridded meteorological data
(The 10th International Symposium on Water Environment Systems - with Perspective of Global Safety, 2022)
2021/04 - 現在 Fukushima University Faculty of Symbiotic Systems Science Professor
2022/04 - 2024/03 Fukushima University Assistant Vise-President (Research and Reginal Cooperation)
2009/10 - 2021/03 Fukushima University Faculty of Symbiotic Systems Science, Cluster of Science and Technology Associate Professor
2017/03 - 2017/12 Delft University of Technology Department of Water Management, Faculty of Civil Engineering and Geosciences Visiting Researcher
2008/09 - 2009/09 University of Tokyo Institute of Industrial Science Project Associate Professor (Adjunct)
2008/04 - 2009/09 University of Tokyo "Wisdom of Water"(Suntory) Corporate Sponsored Research Program, Organization for Interdisciplinary Research Projects Project Associate Professor
2007/04 - 2008/03 Ashikaga Institute of Technology Department of Civil Engineering, School of Engineering Associate Professor
2004/09 - 2007/03 Ashikaga Institute of Technology Department of Civil Engineering, School of Engineering Lecturer
2002/04 - 2004/08 University of Tokyo Institute of Industrial Science Post-doctoral Research Fellow
2002/04 - 2004/08 Japan Society for Promotion of Science JSPS Research Fellow (PD)
2002/07 - 2003/12 University of Western Australia Centre for Water Research Visiting Researcher
1999/04 - 2002/03 Japan Society for Promotion of Science JSPS Research Fellow (DC-1)
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Committee career (14)：
2004/10 - 現在 水文・水資源学会 編集出版委員
2024/09 - 2026/09 Hydrological Research Letters Yokoo@505
2006/08 - 2026/09 水文・水資源学会 国際誌編集委員
2022/09 - 2024/09 Hydrological Research Letters Editor-in-Chief
2006/04 - 2008/03 足利エネルギー・環境教育研究会委員
2006 - Aug 2006-Aug 2008 International editorial boad member,
2006 - Aug 2006-preset Editorial board member, International,
2004 - International Association of Hydrological Science Member
2004 - Oct 2004-Aug 2006 Editorial board member,
2002 - Asia Pacific Assosiation of Hydrology and Water Resources Member
2002 - American Geophysical Union Member
1999 - The Japan Society of Hydrology and Water Resources Member
1997 - Japan Society of Civil Engineers Member
Japan Society of Hydrology and Water Resources.
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Awards (4)：
2020/09 - Japan Society for Hydrology and Water Resources Excellent Article Award Effects of spatial scales on runoff / sediment transport in mountain catchments
国際水文科学協会
, アジア太平洋水文水資源協会
, アメリカ地球物理学連合
, 水文・水資源学会
, 土木学会
, International Association of Hydrological Science
, Asia Pacific Assosiation of Hydrology and Water Resources
, American Geophysical Union
, The Japan Society of Hydrology and Water Resources
, Japan Society of Civil Engineers
