Basic Information

Faculty

• 農学部

Professional Memberships

• 日本雨水資源化システム学会
• 農業土木学会
• JRCSA
• JSIDRE

Academic Degree

• MSc (Agriculture)(Kyoto University)
• PhD (Agriculture)(Kyoto University)

Academic Resume (Graduate Schools)

• Kyoto University, Graduate School of Agriculture, 修了

Academic Resume (Undergraduate School/Majors)

• Kyoto University, Faculty of Agriculture, 卒業

Language of Instruction

• English

ID,URL

• J-Global ID

  200901063706176403

researchmap URL

• https://researchmap.jp/unamik

Research

Research Topics, Overview of the research

• Research Topics

  Fundamental studies on water issues in rural areas

• Overview of the research

  In rural areas, there are different water related problems including floods, droughts, pollution, and deterioration of ecosystems. Modern scientific methodologies including the fluid dynamics and the control theories are applied to those problems in the context of human activities. Construction of fundamental methodologies is propelled with mathematical analysis, numerical and hydraulic experiments, as well as field observations and surveys.

Research Interests

• 流体工学
• 水工水理学
• 農業土木学・農村計画学
• Fluid Mechanics
• Hydraulics and River Engineering
• Drainage and Reclamation Engineering and Rural Planning
• Irrigation

Research Areas

• Environmental science/Agricultural science, Rural environmental engineering and planning
• Social infrastructure (civil Engineering, architecture, disaster prevention), Hydroengineering
• Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Fluid engineering

Papers

• A dynamical system model for plant-nutrient interactions with symbiotic nitrogen fixation and Allee effect

  Weimin Guo; Eileen Joan Magero; Koichi Unami; Hitoshi Shinjo; Tomoki Izumi

  Nonlinear Science, Apr. 2025, Peer-reviewed, Corresponding author

  
• Linear fractional differential equations for modeling nonlinear hydro-environmental phenomena

  Saadeh R.; Unami K.; Qazza A.; Batiha IM; Mohawesh O.

  Engineering Letters, 2025, Peer-reviewed

  
• Resource budget model with Duffing oscillator for dynamics of synchronized biennial-bearing olives in the Levant.

  Eileen Joan Magero; Koichi Unami; Osama Mohawesh; Marie Sato

  Journal of theoretical biology, 07 Dec. 2024, Peer-reviewed, Corresponding author

  
• Shading solutions for sustainable water management: impact of colors and intensities on evaporation and water quality

  Doha Zeadeh; Ammar Albalasmeh; Osama Mohawesh; Koichi Unami

  Applied Water Science, May 2024, Peer-reviewed

  
• Linking population fluidity and olive production in Jordan and Syria

  Sato M; Izumi T; Abu-Zreig M; Unami K

  Journal of Arid Land Studies, 2024, Peer-reviewed

  
• Identification of nominal release policies implemented in a multi-purpose water reservoir

  Koichi Unami; Rasha Fadhil; Md Kamal Rowshon; Ahmad Fikri; Wayayok Aimrun

  Meteorology Hydrology and Water Management, 30 Jun. 2023, Peer-reviewed, Lead author, Corresponding author

  
• Controversial Application of SWAT Model to Kurau River Basin, Malaysia

  Rasha M. Fadhil; Md Kamal Rowshon; Koichi Unami; Aimrun Wayayok; Ahmad Fikri

  Proceedings of The 3rd World Conference on Engineering and Technology, 10 Jun. 2022

  
• Robust optimization of shading types to control the performance of water reservoirs

  Ammar Albalasmeh; Osama Mohawesh; Doha Zeadeh; Koichi Unami

  Journal of Cleaner Production, 20 Aug. 2023, Peer-reviewed, Corresponding author

  
• The Potential of Biochar Application to Enhance Soil Quality, Yield, and Growth of Wheat and Barley Under Rainfed Conditions

  Ammar Albalasmeh; Osama Mohawesh; Ahmad Alqudah; Koichi Unami; Zakaria Al-Ajlouni; Amani Klaib

  Water, Air, & Soil Pollution, 10 Jul. 2023, Peer-reviewed

  
• Fractional Interpolation of the Unit-Hydrograph Method and the Lumped Flow Routing Method in Hydrology

  Koichi Unami

  2023 International Conference on Fractional Differentiation and Its Applications (ICFDA), 14 Mar. 2023, Peer-reviewed, Lead author, Last author, Corresponding author

  
• 一般断面を有する多重連結型開水路網に生じるダム崩壊問題に対する双対格子に基づいた有限体積モデル

  吉岡秀和; 宇波耕一; 藤原正幸

  第62回理論応用力学講演会，OS19-09, 08 Mar. 2013, Peer-reviewed

  
• A thorough description of one-dimensional steady open channel flows using the notion of viscosity solution

  Sovanna Mean; Koichi Unami; Hisashi Okamoto; Masayuki Fujihara

  Applied Mathematics and Computation, 15 Feb. 2022, Peer-reviewed, Corresponding author

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• Statistical analysis of flash flood events for designing water harvesting systems in an extremely arid environment

  Koichi Unami; Osama Mohawesh; Rasha M. Fadhil

  Hydrological Processes, Sep. 2021, Peer-reviewed, Lead author, Corresponding author

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• A multi-state Markov chain model to assess drought risks in rainfed agriculture: a case study in the Nineveh Plains of Northern Iraq

  Rasha M. Fadhil; Koichi Unami

  Stochastic Environmental Research and Risk Assessment, Sep. 2021, Peer-reviewed, Last author, Corresponding author

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• Bounding linear rainfall-runoff models with fractional derivatives applied to a barren catchment of the Jordan Rift Valley

  Koichi Unami; Rasha M. Fadhil; Osama Mohawesh

  Journal of Hydrology, Feb. 2021, Peer-reviewed, Lead author, Corresponding author

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• A multi-state Markov chain model for rainfall to be used in optimal operation of rainwater harvesting systems

  Channpisey Nop; Rasha M. Fadhil; Koichi Unami

  Journal of Cleaner Production, 20 Feb. 2021, Peer-reviewed, Last author, Corresponding author

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• Nonlinear growth dynamics of date palms responding to environmental parameters

  E. J. Magero; K. Unami; O. Mohawesh; M. Yamaguchi; M. Fujihara

  Food Research, 27 Dec. 2020, Peer-reviewed

  
• Level-set methods applied to the kinematic wave equation governing surface water flows

  Sovanna Mean; Koichi Unami; Masayuki Fujihara

  JOURNAL OF ENVIRONMENTAL MANAGEMENT, Sep. 2020, Peer-reviewed

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• Prototype and model of solar driven desalination plant in ARID environment

  Koichi Unami; Osama Mohawesh; Masayuki Fujihara

  Thermal Science, 2020, Peer-reviewed

  
• Time periodic optimal policy for operation of a water storage tank using the dynamic programming approach

  Koichi Unami; Osama Mohawesh; Rasha M. Fadhil

  Applied Mathematics and Computation, 15 Jul. 2019, Peer-reviewed, Lead author, Corresponding author

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• Holistic water quality dynamics in rural artificial shallow water bodies

  Abul Hasan Md Badiul Alam; Koichi Unami; Masayuki Fujihara

  Journal of Environmental Management, 01 Oct. 2018, Peer-reviewed

  
• A singular stochastic control model for sustainable population management of the fish-eating waterfowl Phalacrocorax carbo

  Yuta Yaegashi; Hidekazu Yoshioka; Koichi Unami; Masayuki Fujihara

  Journal of Environmental Management, 01 Aug. 2018, Peer-reviewed

  
• A unique value function for an optimal control problem of irrigation water intake from a reservoir harvesting flash floods

  Koichi Unami; Osama Mohawesh

  Stochastic Environmental Research and Risk Assessment, 01 Nov. 2018, Peer-reviewed

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• Impulse and Singular Stochastic Control Approaches for Management of Fish-Eating Bird Population

  Yuta Yaegashi; Hidekazu Yoshioka; Koichi Unami; Masayuki Fujihara

  AIRO Springer Series, 2018

  
• An Optimal Allocation Model to Release Fish into a River System

  Yaegashi Yuta; Yoshioka Hidekazu; Unami Koichi; Fujihara Masayuki

  Journal of Rainwater Catchment Systems, 2018

  
• Active water quality management in rural small watersheds

  Unami K; Mabaya G; Alam AHMB; Fujihara M

  Environmental Pollution, Water Science and Technology Library, 2018, Peer-reviewed, Invited

  
• A Stochastic Impulse Control Model for Population Management of Fish-Eating Bird Phalacrocorax Carbo and Its Numerical Computation

  Yuta Yaegashi; Hidekazu Yoshioka; Koichi Unami; Masayuki Fujihara

  Communications in Computer and Information Science, 01 Jan. 2018

  
• Optimal installation of overhead lines (Tegusu) to reduce predation from piscivorous birds to Plecoglossus altivelis (Ayu) taking into account of its decaying protection effect

  Yaegashi Y; Yoshioka H; Unami K; Fujihara M

  Journal of Rainwater Catchment Systems, Jul. 2017, Peer-reviewed

  
• An optimal management strategy for stochastic population dynamics of released Plecoglossus altivelis in rivers

  Yuta Yaegashi; Hidekazu Yoshioka; Koichi Unami; Masayuki Fujihara

  International Journal of Modeling, Simulation, and Scientific Computing, 01 Jun. 2017, Peer-reviewed

  
• Stochastic optimal control of agrochemical pollutant loads in reservoirs for irrigation

  Goden Mabaya; Koichi Unami; Masayuki Fujihara

  Journal of Cleaner Production, 10 Mar. 2017, Peer-reviewed

  
• Robust optimal model for sustainable joint production of green tea and paddy rice in Japanese agricultural watersheds

  Goden Mabaya; Koichi Unami; Junichiro Takeuchi; Masayuki Fujihara; Hidekazu Yoshioka

  International Journal of Innovation and Sustainable Development, 2017, Peer-reviewed

  
• Computational Approach to Eco-hydraulics of Fishways

  Fujihara, M; Akimoto, M; Unami, K; Takeuchi, J

  International Conference on Emerging Technologies in Agricultural and Food Engineering, Dec. 2016, Peer-reviewed

  
• Optimal Strategies for Harvesting and Predator Extermination to Sustain Plecoglossus altivelis (Ayu) Population in Stochastic River Environment

  YAEGASHI Yuta; YOSHIOKA Hidekazu; UNAMI Koichi; FUJIHARA Masayuki

  Journal of Rainwater Catchment Systems, Jul. 2016

  
• Verifying optimality of rainfed agriculture using a stochastic model for drought occurrence

  Erfaneh Sharifi; Koichi Unami; Macarius Yangyuoru; Masayuki Fujihara

  Stochastic Environmental Research and Risk Assessment, 01 May 2016, Peer-reviewed

  
• IDENTIFYING THE COST FUNCTION FOR UPSTREAM MIGRATION OF INDIVIDUAL FISHES IN 1-D OPEN CHANNELS BASED ON AN OPTIMAL CONTROL THEORY

  YOSHIOKA Hidekazu; YAEGASHI Yuta; UNAMI Koichi; FUJIHARA Masayuki

  Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering), 2016

  
• Numerical Simulation of a Hamilton-Jacobi-Bellman Equation for Optimal Management Strategy of Released Plecoglossus Altivelis in River Systems

  Yuta Yaegashi; Hidekazu Yoshioka; Koichi Unami; Masayuki Fujihara

  MODEL DESIGN AND SIMULATION ANALYSIS, 2016, Peer-reviewed

  
• Application of stochastic control theory to biophysics of fish migration around a weir equipped with fishways

  Hidekazu Yoshioka; Yuta Yaegashi; Koichi Unami; Masayuki Fujihara

  Communications in Computer and Information Science, 2016, Peer-reviewed

  
• Robust optimal diversion of agricultural drainage water from tea plantations to paddy fields during rice growing seasons and non-rice growing seasons

  Goden Mabaya; Koichi Unami; Hidekazu Yoshioka; Junichiro Takeuchi; Masayuki Fujihara

  PADDY AND WATER ENVIRONMENT, Jan. 2016, Peer-reviewed

  
• Optimal shapes of weirs for trapping migratory fish

  Tadasuke Nakamichi; Koichi Unami; Masayuki Fujihara

  Jurnal Teknologi, 2016, Peer-reviewed

  
• A regime-switching diffusion process model for advection-dispersion phenomena in open channels with aquatic vegetation

  Hidekazu Yoshioka; Koichi Unami; Masayuki Fujihara

  Theoretical and Applied Mechanics Japan, 10 Oct. 2015, Peer-reviewed

  
• Stochastic modelling and control of rainwater harvesting systems for irrigation during dry spells

  Koichi Unami; Osama Mohawesh; Erfaneh Sharifi; Junichiro Takeuchi; Masayuki Fujihara

  JOURNAL OF CLEANER PRODUCTION, Feb. 2015, Peer-reviewed

  
• Design and construction of a hydraulic structure for rainwater harvesting in arid environment

  Erfaneh Sharifi; Koichi Unami; Osama Mohawesh; Tadasuke Nakamichi; Nobuhiko Kinjo; Masayuki Fujihara

  PROCEEDINGS OF THE 36TH IAHR WORLD CONGRESS, 2015, Peer-reviewed

  
• A Petrov-Galerkin finite element scheme for 1-D time-independent Hamilton-Jacobi-Bellman equations

  Yoshioka H; Unami K; Fujihara M

  Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM)), 2015, Peer-reviewed

  
• An adaptive finite volume scheme for Kolmogorov's forward equations in 1-D unbounded domains

  Yaegashi Y; Yoshioka H; Unami K; Fujihara M

  Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM)), 2015, Peer-reviewed

  
• Numerical comparison of shallow water models in multiply connected open channel networks

  Hidekazu Yoshioka; Koichi Unami; Masayuki Fujihara

  JOURNAL OF ADVANCED SIMULATION IN SCIENCE AND ENGINEERING, 2015, Peer-reviewed

  
• A dual finite volume method scheme for catastrophic flash floods in channel networks

  Hidekazu Yoshioka; Koichi Unami; Masayuki Fujihara

  APPLIED MATHEMATICAL MODELLING, Jan. 2015, Peer-reviewed

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• Robust Optimal Policy for Diversion of Agricultural Drainage Water from Tea Plantations to Paddy Fields

  Mabaya, G; Unami, K; Yoshioka, H; TAKEUCHI J; Fujihara, M

  9th Conference on Sustainable Development of Energy, Water and Environment Systems, Sep. 2014, Peer-reviewed

  
• A finite element/volume method model of the depth-averaged horizontally 2D shallow water equations

  Hidekazu Yoshioka; Koichi Unami; Masayuki Fujihara

  INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, May 2014, Peer-reviewed

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• Modeling Alternation of Dry and Wet Spells Using the Langevin Equation

  Erfaneh Sharifi; Koichi Unami; Masayuki Fujihara

  Vulnerability, Uncertainty, and Risk: Quantification, Mitigation, and Management - Proceedings of the 2nd International Conference on Vulnerability and Risk Analysis and Management, ICVRAM 2014 and the 6th International Symposium on Uncertainty Modeling and Analysis, ISUMA 2014, 2014, Peer-reviewed

  
• 1-D Shallow Water Models for Dam Break Flash Floods with Different Junction and Bend Treatments

  Hidekazu Yoshioka; Koichi Unami; Masayuki Fujihara

  ASIASIM 2014, 2014, Peer-reviewed

  
• Mathematical analysis on a conforming finite element scheme for advec-tion-dispersion-decay equations on connected graphs

  YOSHIOKA Hidekazu; UNAMI Koichi; FUJIHARA Masayuki

  Journal of Japan Society of Civil Engineers, Ser. A2, Applied Mechanics, 2014, Peer-reviewed

  
• An extended mathematical model for shallow water flows in vegetated open channels

  Yoshioka H; Wakazono A; Kinjo N; Unami K; Fujihara M

  Journal of Rainwater Catchment Systems, 2014, Peer-reviewed

  
• Temporal discretization algorithms for the continuity equation of the one-dimensional shallow water model

  Yoshioka H; Unami K; Fujihara M

  Journal of Rainwater Catchment Systems, 2014, Peer-reviewed

  
• Friction slope formulae for the two-dimensional shallow water model

  Yoshioka H; Unami K; Fujihara M

  Journal of Japan Society of Civil Engineers, Ser. B1, Hydraulic Engineering, 2014, Peer-reviewed

  
• A simple finite volume model for dam break problems in multiply connected open channel networks with general cross-sections

  Hidekazu Yoshioka; Koichi Unami; Masayuki Fujihara

  Theoretical and Applied Mechanics Japan, 2014, Peer-reviewed

  
• Application of two shallow water models to steady flow analysis in a vegetated agricultural drainage canal

  Yoshioka H; Kinjo N; Wakazono A; Unami K; Fujihara M

  Journal of Rainwater Catchment Systems, 2014, Peer-reviewed

  
• Comparative numerical analysis on momentum flux evaluation schemes for shallow water flows in open channel networks

  Yoshioka H; Unami K; Fujihara M

  Journal of Rainwater Catchment Systems, 2014, Peer-reviewed

  
• Internal boundary conditions for solute transport equations in locally one-dimensional open channel networks

  Yoshioka H; Unami K; Fujihara M

  Journal of Rainwater Catchment Systems, 2014, Peer-reviewed

  
• A cell-vertex finite volume scheme for solute transport equations in open channel networks

  Hidekazu Yoshioka; Koichi Unami

  Probabilistic Engineering Mechanics, 2013, Peer-reviewed

  
• Stochastic control of a micro-dam irrigation scheme for dry season farming

  Koichi Unami; Macarius Yangyuoru; Abul Hasan Md. Badiul Alam; Gordana Kranjac-Berisavljevic

  STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT, Jan. 2013, Peer-reviewed

  
• Application of a Conforming Petrov-Galerkin Finite Element Scheme to Analysis of Longitudinal Dispersion Phenomena in Open Channel Networks

  Hidekazu Yoshioka; Nobuhiko Kinjo; Koichi Unami; Masayuki Fujihara

  PROCEEDINGS OF THE 35TH IAHR WORLD CONGRESS, VOLS I AND II, 2013, Peer-reviewed

  
• Optimal Irrigation Strategies in Rainwater Harvesting Systems during Dry Spells

  Unami, K; Mohawesh, O; Sharifi, E; TAKEUCHI J; Fujihara, M

  The 8th Conference on Sustainable Development of Energy, Water and Environment Systems, 2013, Peer-reviewed

  
• A Conforming Finite Element Method for Non-conservative Advection-diffusion Equations on Connected Graphs

  YOSHIOKA Hidekazu; KINJO Nobuhiko; UNAMI Koichi; FUJIHARA Masayuki

  Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM)), 2013

  
• Concurrent use of finite element and finite volume methods for shallow water flows in locally 1-D channel networks

  K. Unami; A. H. M. Badiul Alam

  INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, May 2012, Peer-reviewed

  
• Stochastic process model for solute transport and the associated transport equation

  Hidekazu Yoshioka; Koichi Unami; Toshihiko Kawachi

  APPLIED MATHEMATICAL MODELLING, Apr. 2012, Peer-reviewed

  
• Application of One-Dimensional Shallow Water Model to Flows in Open Channels with Bends

  Ishida K; Unami K; Kawachi T

  雨水資源化システム学会誌, Jan. 2012, Peer-reviewed

  
• Rationalization of building micro-dams equipped with fish passages in West African savannas

  Koichi Unami; Macarius Yangyuoru; Abul Hasan Md Badiul Alam

  STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT, Jan. 2012, Peer-reviewed

  
• Application of One-Dimensional Shallow Water Model to Flows in Open Channels with Bends

  Ishida Kei; Unami Koichi; Kawachi Toshihiko

  Journal of Rainwater Catchment Systems, 2012

  
• Application of shallow water equations to analyze runoff processes in hilly farmlands

  Kei Ishida; Macarius Yangyuoru; Koichi Unami; Toshihiko Kawachi

  PADDY AND WATER ENVIRONMENT, Dec. 2011, Peer-reviewed

  
• Optimization approaches to nonpoint pollutant source control in watersheds

  Maeda, S.; Kawachi, T.; Unami, K.; Takeuchi, J.

  Watersheds: Management, Restoration and Environmental Impact, 2011, Peer-reviewed

  
• A stochastic differential equation model for assessing drought and flood risks

  Koichi Unami; Felix Kofi Abagale; Macarius Yangyuoru; Abul Hasan M. Badiul Alam; Gordana Kranjac-Berisavljevic

  STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT, Jul. 2010, Peer-reviewed

  
• A refined hydro-environmental watershed model with field-plot-scale resolution

  Junichiro Takeuchi; Chie Imagawa; Toshihiko Kawachi; Koichi Unami; Shigeya Maeda; Tomoki Izumi

  PADDY AND WATER ENVIRONMENT, Jun. 2010, Peer-reviewed

  
• A physically based FVM watershed model fully coupling surface and subsurface water flows

  Junichiro Takeuchi; Toshihiko Kawachi; Chie Imagawa; Natsuki Buma; Koichi Unami; Shigeya Maeda

  PADDY AND WATER ENVIRONMENT, Jun. 2010, Peer-reviewed

  
• A stochastic model for behaviour of fish ascending an agricultural drainage system

  Koichi Unami; Kei Ishida; Toshihiko Kawachi; Shigeya Maeda; Junichiro Takeuchi

  PADDY AND WATER ENVIRONMENT, Jun. 2010, Peer-reviewed

  
• A refined hydro-environmental watershed model with field-plot-scale resolution

  Junichiro Takeuchi; Chie Imagawa; Toshihiko Kawachi; Koichi Unami; Shigeya Maeda; Tomoki Izumi

  PADDY AND WATER ENVIRONMENT, Jun. 2010

  
• A physically based FVM watershed model fully coupling surface and subsurface water flows

  Junichiro Takeuchi; Toshihiko Kawachi; Chie Imagawa; Natsuki Buma; Koichi Unami; Shigeya Maeda

  PADDY AND WATER ENVIRONMENT, Jun. 2010

  
• A stochastic model for behaviour of fish ascending an agricultural drainage system

  Koichi Unami; Kei Ishida; Toshihiko Kawachi; Shigeya Maeda; Junichiro Takeuchi

  PADDY AND WATER ENVIRONMENT, Jun. 2010

  
• Controlling wasteloads from point and nonpoint sources to river system by GIS-aided Epsilon Robust Optimization model

  Shigeya Maeda; Toshihiko Kawachi; Koichi Unami; Junichiro Takeuchi; Eiji Ichion

  JOURNAL OF HYDRO-ENVIRONMENT RESEARCH, Apr. 2010, Peer-reviewed

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• Controlling wasteloads from point and nonpoint sources to river system by GIS-aided Epsilon Robust Optimization model

  Maeda Shigeya; Kawachi Toshihiko; Unami Koichi; Takeuchi Junichiro; Ichion Eiji

  Journal of Hydro-environment Research, Apr. 2010

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• Optimal Allocation of Maximum Allowable Discharged Total Nitrogen Load among Field Plots in Agricultural Watershed

  MAEDA Shigeya; YOSHIKAWA Kazuki; TAKEUCHI Junichiro; KAWACHI Toshihiko; CHONO Shunsuke; UNAMI Koichi

  農業農村工学会論文集, 25 Feb. 2010, Peer-reviewed

  
• Infiltration Process in Rainfed Rice Field Soil of Ghanaian Inland Valley

  UNAMI Koichi; IZUMI Tomoki; IMAGAWA Chie; KAWACHI Toshihiko; MAEDA Shigeya; TAKEUCHI Junichiro

  J Rainwater Catchment Syst, Jan. 2010, Peer-reviewed

  
• An overview of stochastic processes affecting suspended sediment production in environmental engineering: case of Northern Ghana

  Abagale FK; Unami K; Gbedzi VD

  Development Spectrum, An Inter-Faculty Journal of the University for Development Studies, Ghana, 3(1), 75-81, 2010, Peer-reviewed

  
• Infiltration Process in Rainfed Rice Field Soil of Ghanaian Inland Valley

  Unami Koichi; Izumi Tomoki; Imagawa Chie; Kawachi Toshihiko; Maeda Shigeya; Takeuchi Junichiro

  Journal of Rainwater Catchment Systems, 2010

  
• Optimization approaches to nonpoint pollutant source control in watersheds

  Shigeya Maeda; Toshihiko Kawachi; Koichi Unami; Junichiro Takeuchi

  Watersheds: Management, Restoration and Environmental Impact, 01 Jan. 2010

  
• Optimal Allocations of Maximum Allowable Load among Influent Rivers: An Application for Strategic Management of Lake Water Quality

  MAEDA Shigeya; KAWACHI Toshihiko; UNAMI Koichi; TAKEUCHI Junichiro

  農業農村工学会論文集, 25 Dec. 2009, Peer-reviewed

  
• Fuzzy optimization model for integrated management of total nitrogen loads from distributed point and nonpoint sources in watershed

  Shigeya Maeda; Toshihiko Kawachi; Koichi Unami; Junichiro Takeuchi; Tomoki Izumi; Syunsuke Chono

  PADDY AND WATER ENVIRONMENT, Sep. 2009, Peer-reviewed

  
• Fuzzy optimization model for integrated management of total nitrogen loads from distributed point and nonpoint sources in watershed

  Shigeya Maeda; Toshihiko Kawachi; Koichi Unami; Junichiro Takeuchi; Tomoki Izumi; Syunsuke Chono

  PADDY AND WATER ENVIRONMENT, Sep. 2009

  
• Case Study: Hydraulic Modeling of Runoff Processes in Ghanaian Inland Valleys

  Koichi Unami; Toshihiko Kawachi; Gordana Kranjac-Berisavljevic; Felix Kofi Abagale; Shigeya Maeda; Junichiro Takeuchi

  JOURNAL OF HYDRAULIC ENGINEERING-ASCE, Jul. 2009, Peer-reviewed

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• Case Study: Hydraulic Modeling of Runoff Processes in Ghanaian Inland Valleys

  Koichi Unami; Toshihiko Kawachi; Gordana Kranjac-Berisavljevic; Felix Kofi Abagale; Shigeya Maeda; Junichiro Takeuchi

  JOURNAL OF HYDRAULIC ENGINEERING-ASCE, Jul. 2009

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• A distributed hydro-environmental watershed model with three-zoned cell profiling

  Junichiro Takeuchi; Toshihiko Kawachi; Koichi Unami; Shigeya Maeda; Tomoki Izumi

  PADDY AND WATER ENVIRONMENT, Mar. 2009, Peer-reviewed

  
• A distributed hydro-environmental watershed model with three-zoned cell profiling

  Junichiro Takeuchi; Toshihiko Kawachi; Koichi Unami; Shigeya Maeda; Tomoki Izumi

  PADDY AND WATER ENVIRONMENT, Mar. 2009

  
• Dynamics of Nonpoint Source Pollutant Loadings from Agricultural Watershed : A Case Study in Paddy-farming Area with 122 Drainage Water Outfalls Exactly Identifiable

  Chono S; Maeda S; Kawachi T; Unami K; Takeuchi J

  雨水資源化システム学会誌, Jan. 2009, Peer-reviewed

  
• Dynamics of Nonpoint Source Pollutant Loadings from Agricultural Watershed : A Case Study in Paddy-farming Area with 122 Drainage Water Outfalls Exactly Identifiable

  Chono Shunsuke; Maeda Shigeya; Kawachi Toshihiko; Unami Koichi; Takeuchi Junichiro

  Journal of Rainwater Catchment Systems, 2009

  
• An Inverse Method to Estimate Soil Hydraulic Properties in Saturated-unsaturated Groundwater Flow Model

  Izumi T; Takeuchi J; Kawachi T; Unami K; Maeda S

  雨水資源化システム学会誌, Feb. 2008, Peer-reviewed

  
• Model-based Optimal Design of Land Use Arrangement for Environmentally Sound Watershed Management

  TAKEUCHI Junichiro; IZUMI Tomoki; KAWACHI Toshihiko; UNAMI Koichi; MAEDA Shigeya

  J Rainwater Catchment Syst, Jan. 2008, Peer-reviewed

  
• Model-based Optimal Design of Land Use Arrangement for Environmentally Sound Watershed Management

  Takeuchi Junichiro; Izumi Tomoki; Kawachi Toshihiko; Unami Koichi; Maeda Shigeya

  Journal of Rainwater Catchment Systems, 2008

  
• An Inverse Method to Estimate Soil Hydraulic Properties in Saturated-unsaturated Groundwater Flow Model

  Izumi Tomoki; Takeuchi Junichiro; Kawachi Toshihiko; Unami Koichi; Maeda Shigeya

  Journal of Rainwater Catchment Systems, 2008

  
• Control of exotic fishes project for the purpose restoration of satellite lakes (Naiko) in Lake Biwa(THE 38TH SCIENTIFIC RESEARCH MEETING)

  UEDA Toru; NAGANO Masayuki; SHIBAHARA Fujiyoshi; UNAMI Kouichi

  Journal of the Japanese Society of Revegetation Technology, 31 Aug. 2007, Peer-reviewed

  
• Control of exotic fishes project for the purpose restoration of satellite lakes (Naiko) in Lake Biwa

  UEDA Toru; NAGANO Masayuki; SHIBAHARA Fujiyoshi; UNAMI Kouichi

  Journal of the Japanese Society of Revegetation Technology, 31 Aug. 2007

  
• Identification of Drifting Rainfall Distribution

  Unami K; Yangyuoru M; Kawachi T; Adiku SGK; Iwaki M

  雨水資源化システム学会誌, Jan. 2007, Peer-reviewed

  
• Identification of Drifting Rainfall Distribution

  Unami Koichi; Yangyuoru Macarius; Kawachi Toshihiko; Adiku Samuel G. K; Iwaki Maho

  Journal of Rainwater Catchment Systems, 2007

  
• A finite volume scheme for simulation of rainwater harvesting process

  K Unami; T Kawachi; M Yangyuoru; K Ishida

  PROCEEDINGS OF THE SECOND IASTED INTERNATIONAL CONFERENCE ON ADVANCED TECHNOLOGY IN THE ENVIRONMENTAL FIELD, 2006, Peer-reviewed

  
• Systematic assessment of flood mitigation in a tank irrigated paddy fields area

  Koichi Unami; Toshihiko Kawachi

  PADDY AND WATER ENVIRONMENT, Dec. 2005, Peer-reviewed

  
• Systematic assessment of flood mitigation in a tank irrigated paddy fields area

  Koichi Unami; Toshihiko Kawachi

  PADDY AND WATER ENVIRONMENT, Dec. 2005

  
• An Irrigation Tank for Harvesting Rainwater in Semi-arid Savannah Areas-Design and Construction Practices in Ghana/West Africa-

  KAWACHI Toshihiko; AOYAMA Shigeyasu; YANGYUORU Macarius; UNAMI Koichi; MATOH Toru; ACQUAH Daniel; QUARSHIE Samuel

  J Rainwater Catchment Syst, Jul. 2005, Peer-reviewed

  
• Optimal water management in small-scale tank irrigation systems

  K Unami; T Kawachi; M Yangyuoru

  ENERGY, Jun. 2005, Peer-reviewed

  
• Systematic approach evaluating flood mitigation effect of an irrigation tank

  Yoshimoto S; Unami K; Kawachi T

  Transactions of the Japanese Society of Irrigation, Drainage and Rural Engineering, 239, 29-34, 2005, Peer-reviewed

  
• An Irrigation Tank for Harvesting Rainwater in Semi-arid Savannah Areas : Design and Construction Practices in Ghana/West Africa

  Kawachi Toshihiko; Aoyama Shigeyasu; Yangyuoru Macarius; Unami Koichi; Matoh Toru; Acquah Daniel; Quarshie Samuel

  Journal of Rainwater Catchment Systems, 2005

  
• Hybrid Runoff Model Using 1-D Richards Equation and Linear Output Generator

  XU Yong‐Qiang; UNAMI Koichi; KAWACHI Toshihiko; YOSHIMOTO Shuhei

  J Rainwater Catchment Syst, Jan. 2004, Peer-reviewed

  
• Hybrid Runoff Model Using 1-D Richards Equation and Linear Output Generator

  Xu Yong-Qiang; Unami Koichi; Kawachi Toshihiko; Yoshimoto Shuhei

  Journal of Rainwater Catchment Systems, 2004

  
• Comparison of Rainfed and Potential Yields of Maize and Cowpea on the Vertisols of Ghana

  YANGYUORU M; KAWACHI T; UNAMI K; ADIKU S G K; MAWUNYA F; QUASHIE S

  J Rainwater Catchment Syst, Jul. 2003, Peer-reviewed

  
• Universal optimization of water quality management strategy

  K Unami; T Kawachi

  ADVANCES IN WATER RESOURCES, Apr. 2003, Peer-reviewed

  
• Optimal Control of Interconnected Irrigation Tanks System

  Unami K; Kurata S; Kawachi T; Morishita K

  雨水資源化システム学会誌, Jan. 2003, Peer-reviewed

  
• Optimal hydraulic design of earth dam cross section using saturated-unsaturated seepage flow model

  Y. Q. Xu; K. Unami; T. Kawachi

  Advances in Water Resources, Jan. 2003, Peer-reviewed

  
• Comparison of Rainfed and Potential Yields of Maize and Cowpea on the Vertisols of Ghana

  Yangyuoru Macanus; Kawachi Toshihiko; Unami Koichi; Adiku Samuel G. K; Mawunya Ferdinand; Quashie Samuel

  Journal of Rainwater Catchment Systems, 2003

  
• Optimal Control of Interconnected Irrigation Tanks System

  Unami Koichi; Kurata Susumu; Kawachi Toshihiko; Morishita Kazuo

  Journal of Rainwater Catchment Systems, 2003

  
• Estimation of diffusion and convection coefficients in an aerated hydraulic jump

  K Unami; T Kawachi; MM Babar; H Itagaki

  ADVANCES IN WATER RESOURCES, Mar. 2000, Peer-reviewed

  
• Flood Regulation in Reservoir Using Robust Servo Controller

  Unami K; Kawachi T; Hada A; Itagaki H

  雨水資源化システム学会誌, Dec. 1999, Peer-reviewed

  
• Experimental Studies on Effects of Discharge, Fall Height, and Water Depth of Downstream Tank in Aerated Flow at Weir

  Itagaki H; Unami K; Kawachi T

  雨水資源化システム学会誌, Dec. 1999, Peer-reviewed

  
• Two-dimensional numerical model of spillway flow

  K. Unami; T. Kawachi; M. Munir Babar; H. Itagaki

  Journal of Hydraulic Engineering, Apr. 1999, Peer-reviewed

  
• Robust servo control of open channel network flows

  K Unami; T Kawachi; H Okumura; S Nakanishi

  COMPUTATIONAL METHODS AND EXPERIMENTAL MEASUREMENTS IX, 1999, Peer-reviewed

  
• Experimental Studies on Effects of Discharge, Fall Height, and Water Depth of Downstream Tank in Aerated Flow at Weir

  Itagaki Hiroshi; Unami Koichi; Kawachi Toshihiko

  Journal of Rainwater Catchment Systems, 1999

  
• Flood Regulation in Reservoir Using Robust Servo Controller

  Unami Koichi; Kawachi Toshihiko; Hada Akira; Itagaki Hiroshi

  Journal of Rainwater Catchment Systems, 1999

  
• Estimation of Structure of Air Entrained Flow in a Spillway Chute.

  BABAR M M; UNAMI K; KAWACHI T; ITAGAKI H

  農業土木学会論文集, Oct. 1998, Peer-reviewed

  
• Robust Control of Reservoir Release Discharge Using Precipitation Data

  Unami K; Nakanishi S; Kawachi T

  雨水資源化システム学会誌, Jul. 1998, Peer-reviewed

  
• Robust Control of Reservoir Release Discharge Using Precipitation Data

  Unami Koichi; Nakanishi Shigeki; Kawachi Toshihiko

  Journal of Rainwater Catchment Systems, 1998

  
• Reliability of steady surface profile in irrigation canal

  K Unami; T Kawachi; M Yangyuoru; T Hasegawa

  JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING-ASCE, Jan. 1997, Peer-reviewed

  
• マルコフ過程モデルを用いた貯水池信頼性の解析

  宇波耕一; 河地利彦; 川勝健一

  水文・水資源学会誌, 05 Jul. 1996, Peer-reviewed

  
• Analysis of Reservoir Reliability Using Markov Process Model

  UNAMI Koichi; KAWACHI Toshihiko; KAWAKATSU Ken-ichi

  Journal of Japan Society of Hydrology & Water Resources, 05 Jul. 1996

  
• Optimal Control of Open Channel Unsteady Flow Governed by Partial Differential Equation

  Unami K; Kawachi T; Yangyuoru M

  農業土木学会論文集, 25 Feb. 1996, Peer-reviewed

  
• Optimal Control of Open Channel Unsteady Flow Governed by Partial Differential Equation

  UNAMI Koichi; KAWACHI Toshihiko; YANGYUORU Macarius

  Transactions of the Agricultural Engineering Society,Japan, 25 Feb. 1996

  
• Analytical approach to maximization of reservoir reliability

  Unami K; Kawachi T; Kawakatsu K; Maruyama T

  Transactions of the Japanese Society of Irrigation, Drainage and Rural Engineering, 185, 81-86, 1996, Peer-reviewed

  
• Modelling steady flow in open channel networks with sudden transitions

  Kawachi T; Yangyuoru M; Unami K; Itagaki H

  Transactions of the Japanese Society of Irrigation, Drainage and Rural Engineering, 185, 93-98, 1996, Peer-reviewed

  
• Adjoint problem of unsteady open channel flow

  K Unami; T Kawachi; M Yangyuoru

  COMPUTER METHODS AND WATER RESOURCES III, 1996, Peer-reviewed

  
• Optimal Control of Open Channel Unsteady Flow Governed by Partial Differential Equation

  UNAMI Koichi; KAWACHI Toshihiko; YANGYUORU Macarius

  Transactions of The Japanese Society of Irrigation, Drainage and Reclamation Engineering, 1996

  
• Analysis of Reservior Reliability Using Markov Process Model.

  UNAMI Koichi; KAWACHI Toshihiko; KAWAKATSU Ken-ichi

  Journal of Japan Society of Hydrology and Water Resources, 1996

  
• A Finite Element Model of Steady Regulated Flow in Open Channel Networks.

  KAWACHI T; YANGYUORU M; HIRAMATSU K; UNAMI K; HASEGAWA T

  農業土木学会論文集, Oct. 1994, Peer-reviewed

  
• Optimum Control of Discharge Alterations in Irrigation Canals using the Pontryagin Principle of Maximum.

  KAWACHI T; UNAMI K; HASEGAWA T; YANGYUORU M

  農業土木学会論文集, Aug. 1994, Peer-reviewed

  
• Theoretical scope to reservoirs system operations

  Unami K; Minami I; Kawachi T

  Journal of International Rainwater Catchment Systems, 1(2), 22-24, 1994, Peer-reviewed

  
• Rainfall-runoff models with fractional derivatives applied to kurau river basin, Perak, Malaysia

  Koichi Unami; Rasha M. Fadhil; Md Rowshon Kamal

  Basrah Journal of Agricultural Sciences, 19 Aug. 2021

  Access this paper :

  

Misc.

• ヨルダンの自然と景観から 死海に生きる

  宇波耕一

  アジア・マップ：アジア・日本研究Webマガジン, Jun. 2024, Peer-reviewed, Invited, Lead author, Last author, Corresponding author

  
• 平均回帰型確率過程による降水量時系列のモデル化とパラメータ推定

  岩木真穂; 宇波耕一; 河地利彦

  日本雨水資源化システム学会研究発表会講演要旨集, 2008

  
• Optimal water management in smallscale tank irrigation systems

  UNAMI K.

  Dubrovnik Conference on Sustainable Development of Energy, Water and Environment Systems, 2002, 2002

  
• A Conforming Finite Element Scheme for Hamilton-Jacobi-Bellman Equations Defined on Connected Graphs

  Yoshioka Hidekazu; Unami Koichi; Fujihara Masayuki

  計算工学講演会論文集 Proceedings of the Conference on Computational Engineering and Science, Jun. 2015

  
• Application of singular stochastic control theory to fish-eating waterfowl population management (Financial Modeling and Analysis)

  Yaegashi Yuta; Yoshioka Hidekazu; Unami Koichi; Fujihara Masayuki

  数理解析研究所講究録 = RIMS Kokyuroku, Apr. 2019

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• Application of singular stochastic control theory to fish-eating waterfowl population management (ファイナンスの数理解析とその応用)

  八重樫 優太; 吉岡 秀和; 宇波 耕一; 藤原 正幸

  数理解析研究所講究録, Apr. 2019

  
• マルコフ連鎖による連続干天日数のモデル 化

  宇波 耕一

  土地改良の測量と設計, Feb. 2019, Invited

  
• Numerical computation of the coefficients in an exact solution to an impulse control model for optimal population management

  Yaegashi Yuta; Yoshioka Hidekazu; Unami Koichi; Fujihara Masayuki

  計算工学講演会論文集 Proceedings of the Conference on Computational Engineering and Science, Jun. 2018

  
• Numerical Approximation of Singular Stochastic Control Models of Extermination Strategy for the Population of Harmful Animals

  八重樫 優太; 吉岡 秀和; 宇波 耕一; 藤原 正幸

  計算工学講演会論文集 Proceedings of the Conference on Computational Engineering and Science, May 2017

  
• Stochastic Control of Fishery Resources Using Dynamical Models for Local Behaviour and Global Population (The Theory of Random Dynamical Systems and Its Applications)

  Yoshioka Hidekazu; Yaegashi Yuta; Unami Koichi; Fujihara Masayuki

  数理解析研究所講究録, May 2017

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• Finite Element Solution of a Stochastic Control Model for Optimal Population Management Strategy of Released Plecoglossus Altivelis

  Yaegashi Yuta; Yoshioka Hidekazu; Takagi Kenji; Unami Koichi; Fujihara Masayuki

  計算工学講演会論文集 Proceedings of the Conference on Computational Engineering and Science, May 2016

  
• Optimal management strategies for rural water resources from a viewpoint of stochastic control (Symposium on Probability Theory)

  Unami Koichi; Fujihara Masayuki; Yoshioka Hidekazu

  RIMS Kokyuroku, Jun. 2015

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• Application of a Regime-switching Diffusion Process Model to Transport Phenomena in Surface Water Bodies (Symposium on Probability Theory)

  Yoshioka Hidekazu; Takagi Kenji; Unami Koichi; Fujihara Masayuki

  RIMS Kokyuroku, Jun. 2015

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• Mathematical and Numerical Analyses on a Hamilton-Jacobi-Bellman Equation Governing Ascending Behaviour of Fishes (Mechanisms and Mathematical Aspects of Nonlinear Wave Phenomena)

  Yoshioka Hidekazu; Unami Koichi; Fujihara Masayuki

  RIMS Kokyuroku, Apr. 2015

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• Designing and modeling on-farm desalination system using dew collection technology

  Mohawesh Osama; Unami Koichi; Fujihara Masayuki

  応用水理研究部会講演集, 2015

  
• Towards Improved Water Environment Productivity in Japanese Paddy Rice Irrigation Schemes

  Mabaya Goden; Unami Koichi; Fujihara Masayuki; Alam Abul Hasan Md Badiul

  応用水理研究部会講演集, 2015

  
• Burgers type equation models on connected graphs and their application to open channel hydraulics (Mathematical Aspects and Applications of Nonlinear Wave Phenomena)

  Yoshioka Hidekazu; Unami Koichi; Fujihara Masayuki

  RIMS Kokyuroku, Apr. 2014

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• Wise-use of shallow aquifer to control the growth of farm product

  Kuwano Ryota; Unami Koichi; Fujihara Masayuki

  応用水理研究部会講演集, 2014

  
• Identifying contribution of paddy irrigation to groundwater recharge: a numerical experiment for unconfined aquifer of Dogo Plain, Ehime Prefecture, Japan

  M. Fujihara; T. Izumi; K. Unami; J. Takeuchi

  Proceedings of 2013 IAHR World Congress, 2013, Peer-reviewed

  
• Robust Optimization

  UNAMI Koichi

  水土の知 : 農業農村工学会誌 : journal of the Japanese Society of Irrigation, Drainage and Rural Engineering, 01 Apr. 2008

  
• 時間との戦い

  宇波 耕一

  農業土木学会誌 = Journal of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, 01 Jan. 2007

  
• Management of water quality environment under uncertainty : mathematical modeling and computational optimization, "jointly worked"

  Kawachi, T; Unami, K; Maeda, S; Takeuchi, J

  Proceeding of the international conference on water and environment/WE-2003,381-392, 2003, Peer-reviewed

  
• Control Engineering Approaches to Water Resources Management(Special Issue on "Contact between Concerns in the 21st Century and Control Engineering/Applications")

  KAWACHI Toshihiko; UNAMI Koichi

  SYSTEMS, CONTROL AND INFORMATION, 2003

  
• 計算手法と水資源に関する第3回国際会議の報告

  宇波 耕一

  農業土木学会誌 = Journal of the Agricultural Engineering Society, Japan, 01 Dec. 1995

  

Presentations

• Fractional interpolation of the unit-hydrograph method and the lumped flow routing method in hydrology

  Unami K

  2023 International Conference on Fractional Differentiation and Its Applications (ICFDA23), 15 Mar. 2023

  
• Operational practices of water harvesting systems around the world

  Unami K

  International Conference on Arid Lands: Desert Technology XV (DT XV), 2023, Invited

  
• Two-dimensional kinematic waves over small watersheds of nonconvex topography in Northern Iraq

  Unami K; Fadhil RM; Al-Ta’ee SSQ; Izumi T; Sato M

  The 6th International Congress on Water, Waste and Energy Management (WWEM-22), 2022

  
• Survey of stochastic process models applicable to water resources management

  Unami K; Fadhil RM; Mohawesh O

  The Mediterranean Geosciences Union Annual Meeting (MedGU-21), 2021

  
• First-order quasilinear equations to model flash floods with non-dissipative wavefronts

  Unami K; Mohawesh O; Fadhil RM

  The 6th International Symposium on Flash Floods in Wadi Systems (ISFF2021), 2021

  
• Rainfall-runoff models with fractional derivatives applied to Kurau River Basin, Perak Malaysia

  Unami K; Fadhil RM; Kamal MR

  The 5th International Conference on Agricultural and Food Engineering (CAFEi2020), 2021, Invited

  
• A nominal model upper bounding flash flood events in a wadi of the Jordan Rift Valley

  Unami K; Fadhil R; Mohawesh O

  5th International Symposium on Flash Floods in Wadi Systems, Feb. 2020

  
• Generalized additive models for water balance in Bukit Merah Reservoir, Perak, Malaysia

  Unami K; Fadhil R; Kamal MR

  International Symposium on Nonlinear Theory and Its Applications (NOLTA 2019), Dec. 2019, Invited

  
• Numerical computation of the coefficients in an exact solution to an impulse control model for optimal population management

  YAEGASHI Yuta; YOSHIOKA Hidekazu; UNAMI Koichi; FUJIHARA Masayuki

  計算工学講演会論文集(CD-ROM), 06 Jun. 2018

  
• A prototype of micro irrigation scheme in the Jordan Rift Valley and its mathematical modelling

  Unami K; Mohawesh O

  International Green Capitals Congress, May 2018, Invited

  
• 千苅貯水池流域の末吉川における森林域からのリン負荷量の推定

  大石真悠子; 藤原正幸; 宇波耕一; 竹内潤一郎

  農業農村工学会京都支部研究発表会講演要旨集, 2018

  
• 農学系学部・大学院における数学教育

  竹内潤一郎; 宇波耕一; 吉岡秀和

  RIMS共同研究（グループ型）数理農学の基盤づくりに向けて, Jan. 2018

  
• 個体群管理のためのインパルス制御モデルにおける閾値の感度解析

  八重樫優太; 八重樫優太; 吉岡秀和; 宇波耕一; 藤原正幸

  農業農村工学会大会講演会講演要旨集(CD-ROM), 2018

  
• 灌漑用貯水池の最適運用戦略

  藤倉大和; 宇波耕一

  RIMS共同研究（グループ型）数理農学の基盤づくりに向けて, Jan. 2018

  
• 豪雨による溜池決壊を想定した決定論的動的計画問題

  藤倉大和; 宇波耕一; 藤原正幸; 岡本久

  日本雨水資源化システム学会研究発表会講演要旨集, 2018

  
• 塩性乾燥地域における灌漑ナツメヤシ成長の一般化加法モデル

  新井芽丹; 宇波耕一; 藤原正幸

  日本雨水資源化システム学会研究発表会講演要旨集, 2018

  
• A time‐dependent stochastic optimal impulse control model for management of fish‐eating bird

  YAEGASHI Yuta; YAEGASHI Yuta; YOSHIOKA Hidekazu; UNAMI Koichi; FUJIHARA Masayuki

  日本雨水資源化システム学会研究発表会講演要旨集, 2018

  
• Robust optimal harvesting policy for fish in a pond with price volatility

  Ndede EO; Unami K; Fujihara M

  平成29年度農業農村工学会応用水理研究部会, Dec. 2017

  
• Lipschitz continuity of value functions solving a dynamic programming problem for a water storage tank

  Unami K; Mohawesh O; Fujikura Y; Fujihara M

  平成29年度農業農村工学会応用水理研究部会, Dec. 2017

  
• 様々な灌漑条件下における降雨と地下水位の入出力関係の逆解析

  柳井康太郎; 宇波耕一; ALAM Abul Hasan; Md Badiul; 藤原正幸

  日本雨水資源化システム学会研究発表会講演要旨集, Nov. 2017

  
• Stability of water quality dynamics in artificial shallow water bodies

  Alam AHMB; Unami K; Fujihara M

  12th Conference on Sustainable Development of Energy, Water and Environment Systems, Oct. 2017, Invited

  
• The viscosity solution to an HJB equation governing the optimal release strategy from Bukit Merah Reservoir, Malaysia

  Unami K; Fadhil R; Kamal R; Mohawesh O

  12th Conference on Sustainable Development of Energy, Water and Environment Systems, Oct. 2017, Invited

  
• 雨水ハーベスティングシステムの運用に対する動的計画法の応用

  藤倉大和; 宇波耕一; 藤原正幸

  農業農村工学会大会講演会講演要旨集(CD-ROM), 08 Aug. 2017

  
• 有害生物個体群の駆除戦略を導く特異確率制御モデルの数値近似

  八重樫優太; 吉岡秀和; 宇波耕一; 藤原正幸

  計算工学講演会論文集(CD-ROM), 31 May 2017

  
• Stochastic control of fishery resources using dynamical models for local behaviour and global population

  Yoshioka H; Yaegashi Y; Unami K; Fujihara M

  RIMS Kôkyûroku, May 2017

  
• 河川水系の漁場特性を考慮したアユ放流量の最適配分モデル

  八重樫優太; 八重樫優太; 吉岡秀和; 宇波耕一; 藤原正幸

  農業農村工学会京都支部研究発表会講演要旨集, 2017

  
• A two‐variable stochastic singular control model for management of fishery resources under predation

  YAEGASHI Yuta; YAEGASHI Yuta; YOSHIOKA Hidekazu; UNAMI Koichi; FUJIHARA Masayuki

  International Conference on Simulation Technology (CD-ROM), 2017

  
• Generalization of a singular stochastic control model for optimal suppression strategy of a fish‐eating bird population

  YAEGASHI Yuta; YAEGASHI Yuta; YOSHIOKA Hidekazu; UNAMI Koichi; FUJIHARA Masayuki

  日本雨水資源化システム学会研究発表会講演要旨集, 2017

  
• Precise fertigation using multiply-connected drip tube networks

  Bashiri H; Unno Y; Sharifi E; Unami K; Fujihara M

  International Water Conference 2016: Water Resource in Arid Areas: The Way Forward, Mar. 2016

  
• Operational rules for micro-dams solving stochastic control problems

  Sharifi E; Unami K; Mohawesh O; Fujihara M

  International Water Conference 2016: Water Resource in Arid Areas: The Way Forward, 2016

  
• 落差工間の縦断勾配と河床地形特性

  横田康平; 藤原正幸; 宇波耕一; 竹内潤一郎; 竹門康弘

  農業農村工学会京都支部研究発表会講演要旨集, 2016

  
• カワウ捕食圧下における放流アユ個体群の最適管理戦略

  八重樫優太; 宇波耕一; 藤原正幸; 吉岡秀和

  農業農村工学会京都支部研究発表会講演要旨集, 2016

  
• Optimal management strategies for rural water resources from a viewpoint of stochastic control (Symposium on Probability Theory)

  Unami Koichi; Fujihara Masayuki; Yoshioka Hidekazu

  RIMS Kokyuroku, Jun. 2015

  
• Application of a Regime-switching Diffusion Process Model to Transport Phenomena in Surface Water Bodies (Symposium on Probability Theory)

  Yoshioka Hidekazu; Takagi Kenji; Unami Koichi; Fujihara Masayuki

  RIMS Kokyuroku, Jun. 2015

  
• A Conforming Finite Element Scheme for Hamilton-Jacobi-Bellman Equations Defined on Connected Graphs

  Yoshioka Hidekazu; Unami Koichi; Fujihara Masayuki

  計算工学講演会論文集 Proceedings of the Conference on Computational Engineering and Science, Jun. 2015

  
• Mathematical and Numerical Analyses on a Hamilton-Jacobi-Bellman Equation Governing Ascending Behaviour of Fishes (Mechanisms and Mathematical Aspects of Nonlinear Wave Phenomena)

  Yoshioka Hidekazu; Unami Koichi; Fujihara Masayuki

  RIMS Kokyuroku, Apr. 2015

  
• Numerical simulation on optimal countermeasure for feeding damage by Great Cormorant to inland fisheries based on stochastic control theory

  Yaegashi Y; Yoshioka H; Unami K; Fujihara M

  Proceeding of Asia Simulation Conference 2015, 2015

  
• Design and construction of a hydraulic structure for rainwater harvesting in arid environment

  Sharifi E; Unami K; Mohawesh O; Nakamichi T; Kinjo N; Fujihara M

  E-proceedings of the 36th IAHR (International Association for Hydro-environment Engineering and Research) Congress, 2015

  
• Markov decision process to find optimal policies for control of nitrogen pollutant loads in reservoirs for irrigation

  Mabaya G; Unami K; Fujihara M

  Proceedings of the 10th Conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES), 2015

  
• Optimal management strategies for rural water resources from a viewpoint of stochastic control

  Unami K; Fujiahra M; Yoshioka H

  RIMS Kôkyûroku, 2015

  
• Application of a regime-switching diffusion process model to transport phenomena in surface water bodies

  Yoshioka H; Takagi K; Unami K; Fujihara M

  RIMS Kôkyûroku, 2015

  
• Burgers type equation models on connected graphs and their application to open channel hydraulics (Mathematical Aspects and Applications of Nonlinear Wave Phenomena)

  Yoshioka Hidekazu; Unami Koichi; Fujihara Masayuki

  RIMS Kokyuroku, Apr. 2014

  
• Robust optimal policy for diversion of agricultural drainage water from tea plantations to paddy fields

  Mabaya G; Unami K; Yoshioka H; Takeuchi J; Fujihara M

  Proceedings of the 9thConference on Sustainable Development of Energy, Water and Environment Systems (SDEWES), 2014

  
• A hyperbolic longitudinal dispersion model of contaminant in open channel networks

  Yoshioka H; Kinjo N; Mabaya G; Unami K; Fujihara M

  Proceedings of the 7th International Symposium on Environmental Hydraulics, 2014

  
• A Regime-Switching Diffusion Process Model for Longitudinal Dispersion Phenomena in Vegetated Open Channels

  Yoshioka Hidekazu; Unami Koichi; Fujihara Masayuki

  NCTAM papers, National Congress of Theoretical and Applied Mechanics, Japan, 2014

  
• Modeling Alternation of Dry and Wet Spells Using the Langevin Equation

  Sharifi E; Unami K; Fujihara M

  Vulnerability, Uncertainty, and Risk: Quantification, Mitigation, and Management - Proceedings of the 2nd International Conference on Vulnerability and Risk Analysis and Management, ICVRAM 2014 and the 6th International Symposium on Uncertainty Modeling a, 01 Jan. 2014

  
• A dual grid based finite volume model for dam break flows in multiply connected open channel networks with general cross-sections

  Yoshioka Hidekazu; Unami Koichi; Fujihara Masayuki

  NCTAM papers, National Congress of Theoretical and Applied Mechanics, Japan, 2013

  
• Partial differential equation model for spatially distributed statistics of contaminant particles in locally one-dimensional open channel networks

  Yoshioka H; Unami K; Kawachi T

  The 10th International Conference on Hydroscience and Engineering, 2012

  
• Optimal strategies for water pumping from shallow aquifer in Bangladeshi floodplain

  Kuwano R; Alam AHMB; Unami K; Fujihara M

  平成24年度応用水理研究部会講演会, 2012

  
• A stochastic population dynamics model for sustainability assessment in two adjacent habitats

  Mibuta Y; Unami K; Fujihara M

  平成24年度応用水理研究部会講演会, 2012

  
• An autonomous runoff model using stochastic differential equations

  Alam AHMB; Ryo M; Unami K; Fujihara M

  平成24年度応用水理研究部会講演会, 2012

  
• Stochastic control of micro rainwater harvesting systems

  Ryo M; Unami K; Fujihara M

  平成24年度応用水理研究部会講演会, 2012

  
• 1次元浅水流方程式の数値モデルにおける時間項の離散化手法

  吉岡秀和; 宇波耕一; 藤原正幸

  平成24年度応用水理研究部会講演会, 2012

  
• 桂地区の農業用排水路システムにおける流れのシミュレーション

  金城信彦; 宇波耕一; 藤原正幸

  平成24年度応用水理研究部会講演会, 2012

  
• 輪中における排水ゲート操作戦略の数値流体力学的検討

  蘭園; 吉岡秀和; 宇波耕一; 藤原正幸

  平成24年度応用水理研究部会講演会, 2012

  
• Navier-Stokes方程式に基づく浸透とキャビティ流れの同時解析手法の開発

  川並俊輔; 藤澤和謙; 村上章; 宇波耕一; 藤原正幸

  平成24年度応用水理研究部会講演会, 2012

  
• 局所1次元開水路網流れ解析のための双対格子に基づいた有限体積法スキーム

  吉岡秀和; 宇波耕一

  農業農村工学会京都支部第69回研究発表会, 2012

  
• 塩性土壌における電気伝導度の確率過程モデル

  梁美里; 宇波耕一

  農業農村工学会京都支部第69回研究発表会, 2012

  
• 確率制御に基づく塩性土壌の灌漑

  宇波耕一; 梁美里

  農業農村工学会京都支部第69回研究発表会, 2012

  
• 滋賀県高島市マキノ町大沼地区の農業水路における魚類の生息と回遊

  長野峻介; 吉岡秀和; 宇波耕一

  農業農村工学会京都支部第69回研究発表会, 2012

  
• 局所1次元開水路網における溶質輸送方程式に対するPetrov-Galerkin型有限要素法

  吉岡秀和; 宇波耕一; 河地利彦

  平成24年度農業農村工学会大会講演会, 2012

  
• An upwind finite element scheme for stochastic contaminant particle dynamics in locally one-dimensional open channel networks

  Yoshioka H; Unami K; Kawachi T

  PAWEES 2011 Students' International Conference, 2011

  
• 水平2次元流れ場における溶質輸送の支配方程式に対する有限体積法スキーム

  吉岡秀和; 宇波耕一; 河地利彦

  平成23年度応用水理研究部会講演会, 2011

  
• 確率過程制御に基づいた溜池群における貯留水の最適配分

  宇波耕一; 河地利彦

  雨水資源化システム学会第19回研究発表会, 2011

  
• 閉鎖性水域における水質の確率過程モデルと最適制御

  宇波耕一; 河地利彦

  農業農村工学会京都支部第66回研究発表会, 2011

  
• 1次元開水路網の流れに対する保存型数値手法

  宇波耕一; 石田桂; 河地利彦

  平成23年度農業農村工学会大会講演会, 2011

  
• 1次元開水路における局所的流速場の確率過程モデルと移流分散現象解析への応用

  吉岡秀和; 宇波耕一; 河地利彦

  平成22年度応用水理研究部会講演会, 2010

  
• 多重連結型開水路網に対応した質量保存型有限体積法流れ解析モデル

  石田桂; 宇波耕一; 河地利彦

  平成22年度応用水理研究部会講演会, 2010

  
• 農地からの流出過程に適用される一次元開水路流モデルのKinematic Wave近似

  石田桂; 宇波耕一; 河地利彦

  平成22年度農業農村工学会大会講演会, 2010

  
• 確率過程モデルに基づいた1次元水路における移流分散方程式

  宇波耕一; 河地利彦

  平成22年度農業農村工学会大会講演会, 2010

  
• 移動を考慮した生物個体群の定常確率過程モデル

  宇波耕一; 河地利彦

  雨水資源化システム学会第18回研究発表会, 2010

  
• 乱流場の確率過程モデルに基づいた保存性溶質の楕円放物型輸送方程式

  吉岡秀和; 宇波耕一; 河地利彦

  雨水資源化システム学会第18回研究発表会, 2010

  
• 多重連結型開水路に対応した保存則を満たす非定常流有限体積法モデル

  石田桂; 宇波耕一; 河地利彦

  雨水資源化システム学会第18回研究発表会, 2010

  
• 多重連結型開水路に対応した陰形式非定常流モデル

  石田桂; 宇波耕一; 河地利彦

  農業農村工学会京都支部第67回研究発表会, 2010

  
• 確率過程としての流れ場における輸送現象の粒子法シミュレーション

  吉岡秀和; 世戸貴大; 宇波耕一; 河地利彦

  農業農村工学会京都支部第67回研究発表会, 2010

  
• 確率過程モデルに基づく灌漑用貯留タンクの設計

  宇波耕一; 河地利彦; 横塚貴之

  農業農村工学会京都支部第67回研究発表会, 2010

  
• Application of shallow water equations models for water hazards problems

  The International Conference on Water, Environment, Energy and Society/WEES-2009, 2009, National Institute of Hydrology, Roorkee/Ministry of Water Resources, India

  
• Key Issues in Management of Existing Micro-Dams in Ghana

  Abagale FK; 宇波耕一; 河地利彦

  雨水資源化システム学会第17回研究発表会, 2009

  
• 湿地を含む谷津の水理特性

  宇波耕一; 河地利彦

  農業農村工学会京都支部研究発表会講演要旨集, 2009

  
• 複数の生息域間で移動する生物個体群に関する確率過程モデル

  室井洋佑; 宇波耕一; 河地利彦

  平成21年度応用水理研究部会講演会, 2009

  
• 決壊した小規模ダムに対する環境水理学的復旧対策

  宇波耕一; 河地利彦; 室井洋佑

  平成21年度応用水理研究部会講演会, 2009

  
• 楕円放物型偏微分方程式の数値解

  宇波耕一; 河地利彦; 石田桂

  平成21年度農業農村工学会大会講演会, 2009

  
• 畝間灌漑農地と水盤灌漑農地における洪水緩和過程の数値解析

  石田桂; 宇波耕一; 河地利彦

  雨水資源化システム学会第17回研究発表会, 2009

  
• 一次元開水路流モデルを用いた谷津における洪水の解析

  石田桂; 宇波耕一; 河地利彦

  農業農村工学会京都支部第66回研究発表会, 2009

  
• 魚類個体数の確率論的ダイナミクスに関する2パラメータモデル

  室井洋佑; 宇波耕一; 河地利彦

  農業農村工学会京都支部第66回研究発表会, 2009

  
• 琵琶湖から周辺低平地水路網へ遡上する魚類の行動

  宇波耕一; 河地利彦; 宮内彩子

  平成20年度応用水理研究部会講演会, 2008

  
• 降雨量と浮遊砂濃度の時系列データに対する確率過程モデル

  宇波耕一; 河地利彦

  平成20年度農業農村工学会大会講演会, 2008

  
• 平均回帰型確率過程による降水量時系列のモデル化とパラメータ推定

  岩木真穂; 宇波耕一; 河地利彦

  雨水資源化システム学会第16回研究発表会, 2008

  
• 降雨・日射・土壌水分の通年時系列データに対する線型モデル

  宇波耕一; 河地利彦

  雨水資源化システム学会第16回研究発表会, 2008

  
• 農業用排水路の流れ解析に対する正規化有限要素法と有限体積法の有効性の比較

  重森玲子; 宇波耕一; 河地利彦

  農業農村工学会京都支部第65回研究発表会, 2008

  
• 堰上げられた農業用排水路における魚類個体数の確率過程モデル

  宇波耕一; 室井洋佑; 河地利彦

  農業農村工学会京都支部第65回研究発表会, 2008

  
• A finite volume scheme for simulation of rainwater harvesting process

  K. Unami; T. Kawachi; M. Yangyuoru; K. Ishida

  Proceedings of the Second IASTED International Conference on Advanced Technology in the Environmental Field, ATEF 2006, 01 Dec. 2007

  
• A prototype tank irrigation scheme with rainwater harvesting

  Yangyuoru M; Unami K; Kawachi T

  International Conference on Rainwater Harvesting and Management in Africa, 81-88, 2006

  
• Optimal water management in small-scale tank irrigation systems

  Unami K; Kawachi T; Yangyuoru M

  Dubrovnik Conference on Sustainable Development of Energy, Water and Environment Systems, Paper 138, 2002

  
• H∞ control approach to sustainable management of water quality in Lake Biwa

  Unami K; Kawachi T; Terada S

  The 9th International Conference on the Conservation and Management of Lakes, 3C/D-P06, 273-276, 2001

  
• Robust control of irrigation channel network system

  Unami K; Kawachi T

  Proceedings of International Commission on Irrigation and Drainage/ICID 1st Asian Conference, B02, 1-11, 2001

  
• A decision support model for reservoir management using the Fokker-Plank equations

  Unami K; Kawachi T; Kawakatsu K; Maruyama T

  Proceedings of International Conference on Water Resources and Environment Research: Towards the 21st Century, 2, 191-198, 1996

  
• Adjoint problem of unsteady open channel flow

  K. Unami; T. Kawachi; M. Yangyuoru

  Proceedings of the International Conference on Computer Methods in Water Resources, CMWR, 01 Jan. 1996

  
• Simulation of a modeled grouped reservoirs system

  Unami K

  Proceedings of the 1992 Regional Conference, International Rainwater Catchment Systems Association, 3, 959-969, 1992

  

Books and Other Publications

• Modelling and analysis of time series data in math-agro sciences

  UNAMI Koichi, Editor, The Mathematics for Industry Research

  Institute of Mathematics for Industry, Kyushu University, Mar. 2019, Not refereed

  
• A prototype of micro irrigation scheme in the Jordan Rift Valley and its mathematical modelling

  UNAMI Koichi, Contributor, International Green Capitals Congress

  Konya Municipality, May 2018, Not refereed

  
• Optimization approaches to nonpoint pollutant source control in watersheds

  Unami K; Kawachi T; Maeda S; Takeuchi J

  Chapter 4 In: Watersheds: Management, Restoration and Environmental Impact, Edited by Vaughn JC, Nova Science Publishers, 359-391, 2011, Not refereed

  
• Computational methods supporting rainwater harvesting technology

  Unami K; Kawachi T; Maeda S; Takeuchi J

  Chapter 4 In: New Topics in Water Resources Research and Management, Edited by Andreassen HM, Nova Science Publishers, 167-193, 2008, Not refereed

  
• Management of water quality environment under uncertainty -mathematical modeling and computational optimization-

  Kawachi T; Unami K; Maeda S; Takeuchi J

  Environmental Pollution, Edited by Singh VP and Yadava RN, Applied Publishers, 381-392, 2003, Not refereed

  
• 一次元開水路非定常流れ解析

  宇波耕一

  「第15回高度技術セミナー」テキスト, 農業土木学会, 77-92, 2001, Not refereed

  
• Robust servo control of open channel network flows

  Unami K; Kawachi T; Okumura H; Nakanishi S

  Computational Methods and Experimental Measurements IX, Edited by Brebbia CA and Caromagno GM, WIT Press, 241-248, 1999, Not refereed

  
• Numerical model of pseudo steady flows in saline open channel networks using finite volume and finite element methods

  Unami K; Kawachi T; Hiramatsu K; Okumura H

  Finite Volumes for Complex Applications, Edited by Benkhaldoun F and Vilsmeier R, Hermes, 563-570, 1996, Not refereed

  
• Adjoint problem of unsteady open channel flows

  Unami K; Kawachi T; Yangyuoru M

  Computer Methods and Water Resources III, Edited by Abousleiman Y, Brebbia CA, Ouazar D, and Cheng AH, WIT Press, 41-48, 1996, Not refereed

  

Industrial Property Rights

• 特許9689131, 特願14445449, Water collecting structure

  Akira Taomoto; Yumi Wakita; Junichiro Takeuchi; Koichi Unami; Toshihiko Kawachi

  
• 特願PCT/JP2013/005540, 集水構造体

  竹内潤一郎; 宇波耕一; 河地利彦; 田尾本昭; 脇田由実

  

Awards

• 2003

  JSIDRE, Research Promotion Award, Kyoto Branch, Japanese Society of Irrigation, Drainage, and Reclamation Engineering
• 10 Aug. 2006

  PAWEES, Paper award, Sawada prize
• 28 Oct. 2010

  PAWEES, Paper award, Sato prize
• 06 Sep. 2011

  JSIDRE, Research promotion award
• 01 Sep. 2015

  The Japanese Society of Irrigation, Drainage and Rural Engineering (JSIDRE), SAWADA Award

External funds: Kakenhi

• Rainwater harvesting to overcome vulnerability of the Fertile Crescent

  Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

  Medium-sized Section 41:Agricultural economics and rural sociology, agricultural engineering, and related fields

  Kyoto University

  宇波 耕一

  From 07 Oct. 2019, To 31 Mar. 2025, Granted

  雨水ハーベスティング;肥沃な三日月地帯;脆弱性;ヨルダン;イラク

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19KK0167/
• Optimal Operation of Irrigation Schemes Based on Viscosity Solutions of Partial Differential Equations

  Grant-in-Aid for Scientific Research (B)

  Kyoto University

  Koichi Unami

  From 19 Jul. 2016, To 31 Mar. 2020, Project Closed

  微分方程式;粘性解;数値解析;乾燥・半乾燥地農業;分数階微積分学;水管理;特異拡散;国際研究者協力;非線型微分方程式;比較定理;灌漑農業;土壌物理;最適化;非線型偏微分方程式;灌漑;動的計画法

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16KT0018/
• Environmental direct payment and insurance using water quality index for catchment area of a domestic water reservoir

  Grant-in-Aid for Challenging Exploratory Research

  Kyoto University

  Masayuki Fujihara

  From 01 Apr. 2016, To 31 Mar. 2019, Project Closed

  リン;富栄養化;水田;森林;貯水池;流出負荷;渇水;インデックス保険;ため池;浄化機構;河川水質;水質浄化;汚濁負荷量;農村環境;水質;環境直接支払い;保険

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16K15007/
• Sustainable development of Bangladeshi rural communities by integrated utilization of groundwater and fish ponds

  Grant-in-Aid for Challenging Exploratory Research

  Kyoto University

  Koichi Unami

  From 01 Apr. 2016, To 31 Mar. 2019, Project Closed

  養魚池;不圧地下水;稲作灌漑;コモンズ;ロバスト最適化;水質動態;国際研究者協力;バングラデシュ;浅層地下水;最適戦略;確率過程;国際農業農村開発;地下水;内水面漁業

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16K15005/
• Water resources portfolio for farmlands along the Dead Sea

  Grant-in-Aid for Scientific Research (A)

  Kyoto University

  Koichi Unami

  From 01 Apr. 2014, To 31 Mar. 2019, Project Closed

  水資源;ポートフォリオ問題;乾燥地農業;関数解析;死海;国際研究者交流;国際情報交換;ヨルダン;水利施設;非線型偏微分方程式

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-26257415/
• Development Options for Rural Water in West African Savannas

  Grant-in-Aid for Scientific Research (A)

  Kyoto University

  Koichi UNAMI

  From 01 Apr. 2008, To 31 Mar. 2013, Project Closed

  サバンナ気候;水資源開発;浅水方程式;確率過程;確率制御;意思決定支援;輸送方程式;国際情報交換;水資源;水工水理学;サバンナ;最適化;ガーナ国;確率微分方程式;自給農業;水質

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20255012/
• 突発的洪水に対する流出モデルの開発と検証

  Grant-in-Aid for Young Scientists (A)

  Kyoto University

  宇波 耕一

  From 01 Apr. 2005, To 31 Mar. 2008, Project Closed

  洪水;浅水方程式;有限体積法;内部境界条件;小ダム;流出モデル;内陸谷;サバンナ;地表流モデル;地下水平流モデル;高解像度雨量計;土壌水分計;水理実験;地表流;地下浸透流;雨量計;同定

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17688010/
• 水利施設における魚類行動に関する確率過程モデルの構築

  Grant-in-Aid for Exploratory Research

  Kyoto University

  宇波 耕一

  From 01 Apr. 2005, To 31 Mar. 2007, Project Closed

  魚類行動;農業排水路;水田魚道;Fokker-Planck偏微分方程式;内部境界条件;遡上確率;数値解析;琵琶湖;水田;Fokker-Planck偏微分方;ニゴロブナ;堰

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17658103/
• Hydro-environmental Modeling and Optimal Controlling of Regional Water Networks

  Grant-in-Aid for Scientific Research (A)

  Kyoto University

  Toshihiko KAWACHI

  From 01 Apr. 2005, To 31 Mar. 2009, Project Closed

  水資源;水環境;最適管理;数理モデル;地理情報システム;地下水;地表水;農村地域

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17208021/
• 用排水システムのシミュレーションおよび自動制御モデル

  Grant-in-Aid for Young Scientists (B)

  Kyoto University

  宇波 耕一

  From 01 Apr. 2001, To 31 Mar. 2003, Project Closed

  用排水システム;最適制御問題;実時間自動制御;洪水流出;周波数領域;ロバスト制御;水質管理;フィードバック;伝達関数モデル;給水制限;間断かんがい

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13760170/
• Pilot Study on Optimal Design and Management of Small-Scale Irrigation Scheme with Rainwater Harvesting -Constructing a Pilot Scheme in Ghana/West Africa-

  Grant-in-Aid for Scientific Research (A)

  KYOTO UNIVERSITY

  Toshihiko KAWACHI

  From 01 Apr. 2001, To 31 Mar. 2005, Project Closed

  乾燥・半乾燥地域;小規模水資源開発;マイクロダム;雨水ハーベスティング;灌漑;最適管理;アフリカ;ガーナ;最適設計, Arid and semi-arid areas;Small-scale water development;Micro-dam;Rainwater harvesting;Irrigation;Optimal management;Africa;Ghana

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13306018/
• Contemporary Aspects of Irrigation Tanks, and Management and Conservation Strategies for their Wise-use

  Grant-in-Aid for Scientific Research (B)

  KYOTO UNIVERSITY

  Toshihiko KAWACHI

  From 01 Apr. 2000, To 31 Mar. 2003, Project Closed

  溜池;洪水調節;水利統合;漏水;堤体振動;水質;生態系;水利施設改良・更新, Irrigation Tanks;Flood Mitigation;Water-use Unification;Water Leakage;Embankment Vibration;Water Quality;Biology;Multi-functions;Sustainable Wise-use

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12556037/
• 急勾配水路における開水路水理学の刷新

  Grant-in-Aid for Scientific Research (C)

  Basic Section 41030:Rural environmental engineering and planning-related

  Kyoto University

  宇波 耕一

  From 01 Apr. 2025, To 31 Mar. 2028, Adopted

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-25K09329/

External funds: others

• イラク北部における多元社会の構築を目指す実現可能な水と農のポートフォリオの設計 (2023年度分)

  Japan Society for the Promotion of Science (JSPS), 二国間交流事業共同研究・セミナー

  From 01 Apr. 2023, To 31 Mar. 2024

  代表者
• イラク北部における多元社会の構築を目指す実現可能な水と農のポートフォリオの設計 (2022年度分)

  Japan Society for the Promotion of Science (JSPS), 二国間交流事業共同研究・セミナー

  From 01 Apr. 2022, To 31 Mar. 2023

  代表者

Education

Teaching subject(s)

• From 01 Apr. 2025, To 31 Mar. 2026

  Laboratory Course in Water Resources Engineering

  EG07, Fall, Graduate School of Agriculture, 2.5
• From 01 Apr. 2025, To 31 Mar. 2026

  Laboratory Course in Water Resources Engineering

  EG07, Spring, Graduate School of Agriculture, 2.5
• From 01 Apr. 2025, To 31 Mar. 2026

  Seminar in Computational Hydraulics

  5987, Fall, Faculty of Agriculture, 2
• From 01 Apr. 2025, To 31 Mar. 2026

  Laboratory Course in Hydraulics

  5979, Spring, Faculty of Agriculture, 2
• From 01 Apr. 2025, To 31 Mar. 2026

  Hydraulics

  5921, Fall, Faculty of Agriculture, 2
• From 01 Apr. 2025, To 31 Mar. 2026

  Seminar in Water Resources Engineering

  EF07, Spring, Graduate School of Agriculture, 2
• From 01 Apr. 2025, To 31 Mar. 2026

  Seminar in Water Resources Engineering

  EF07, Fall, Graduate School of Agriculture, 2
• From 01 Apr. 2025, To 31 Mar. 2026

  Hydraulic and Environmental Modeling

  EA20, Spring, Graduate School of Agriculture, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Laboratory Course in Water Resources Engineering

  EG07, Spring, Graduate School of Agriculture, 2.5
• From 01 Apr. 2024, To 31 Mar. 2025

  Laboratory Course in Water Resources Engineering

  EG07, Fall, Graduate School of Agriculture, 2.5
• From 01 Apr. 2024, To 31 Mar. 2025

  Seminar in Water Resources Engineering

  EF07, Spring, Graduate School of Agriculture, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Seminar in Water Resources Engineering

  EF07, Fall, Graduate School of Agriculture, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Hydraulics

  5921, Fall, Faculty of Agriculture, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Seminar in Computational Hydraulics

  5987, Fall, Faculty of Agriculture, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Laboratory Course in Hydraulics

  5979, Spring, Faculty of Agriculture, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Laboratory Course in Water Resources Engineering 2

  EC53, Year-long, Graduate School of Agriculture, 5
• From 01 Apr. 2023, To 31 Mar. 2024

  Laboratory Course in Water Resources Engineering 1

  EC52, Year-long, Graduate School of Agriculture, 5
• From 01 Apr. 2023, To 31 Mar. 2024

  Seminar in Water Resources Engineering 1

  EB61, Year-long, Graduate School of Agriculture, 4
• From 01 Apr. 2023, To 31 Mar. 2024

  Seminar in Water Resources Engineering 2

  EB62, Year-long, Graduate School of Agriculture, 4
• From 01 Apr. 2023, To 31 Mar. 2024

  Hydraulic and Environmental Modeling

  EA20, Spring, Graduate School of Agriculture, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Hydraulics

  5921, Fall, Faculty of Agriculture, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Seminar in Computational Hydraulics

  5987, Fall, Faculty of Agriculture, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Laboratory Course in Hydraulics

  5979, Spring, Faculty of Agriculture, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Laboratory Course in Water Resources Engineering 1

  EC52, Year-long, Graduate School of Agriculture, 5
• From 01 Apr. 2022, To 31 Mar. 2023

  Seminar in Water Resources Engineering 1

  EB61, Year-long, Graduate School of Agriculture, 4
• From 01 Apr. 2022, To 31 Mar. 2023

  Seminar in Computational Hydraulics

  5987, Fall, Faculty of Agriculture, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Laboratory Course in Water Resources Engineering 2

  EC53, Year-long, Graduate School of Agriculture, 5
• From 01 Apr. 2022, To 31 Mar. 2023

  Hydraulics

  5921, Fall, Faculty of Agriculture, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Laboratory Course in Hydraulics

  5979, Spring, Faculty of Agriculture, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Seminar in Water Resources Engineering 2

  EB62, Year-long, Graduate School of Agriculture, 4
• From Apr. 2011, To Mar. 2012

  環境水理モデル化論

  Spring, 地球環境学舎
• From Apr. 2011, To Mar. 2012

  水理学

  Fall, 農学部
• From Apr. 2011, To Mar. 2012

  水理学実験

  Spring, 農学部
• From Apr. 2011, To Mar. 2012

  計算水理学演習

  Fall, 農学部
• From Apr. 2011, To Mar. 2012

  利水環境解析演習Ⅱ

  農学研究科
• From Apr. 2011, To Mar. 2012

  水資源利用工学実験

  農学研究科
• From Apr. 2012, To Mar. 2013

  Water-Use Systems Engineering

  Fall, 農学部
• From Apr. 2012, To Mar. 2013

  Laboratory Course in Hydraulics

  Spring, 農学部
• From Apr. 2012, To Mar. 2013

  Water Resources Utilization

  Spring, 農学部
• From Apr. 2012, To Mar. 2013

  Hydraulic and Environmental Modeling

  Spring, 地球環境学舎
• From Apr. 2012, To Mar. 2013

  Seminar in Computational Hydraulics

  Fall, 農学部
• From Apr. 2013, To Mar. 2014

  Hydraulics

  Fall, 農学部
• From Apr. 2013, To Mar. 2014

  Laboratory Course in Hydraulics

  Spring, 農学部
• From Apr. 2013, To Mar. 2014

  Seminar in Computational Hydraulics

  Fall, 農学部
• From Apr. 2013, To Mar. 2014

  Hydraulic and Environmental Modeling

  Spring, 農学研究科
• From Apr. 2013, To Mar. 2014

  Seminar I in Water Resources Engineering

  Fall, 農学研究科
• From Apr. 2013, To Mar. 2014

  Seminar II in Water Resources Engineering

  Year-long, 農学研究科
• From Apr. 2013, To Mar. 2014

  Laboratory Course in Water Resources Engineering

  Year-long, 農学研究科
• From Apr. 2014, To Mar. 2015

  Hydraulics

  Fall, 農学部
• From Apr. 2014, To Mar. 2015

  Laboratory Course in Hydraulics

  Spring, 農学部
• From Apr. 2014, To Mar. 2015

  Seminar in Computational Hydraulics

  Fall, 農学部
• From Apr. 2014, To Mar. 2015

  Seminar I in Water Resources Engineering

  Fall, 農学研究科
• From Apr. 2014, To Mar. 2015

  Seminar II in Water Resources Engineering

  Year-long, 農学研究科
• From Apr. 2014, To Mar. 2015

  Laboratory Course in Water Resources Engineering

  Year-long, 農学研究科
• From Apr. 2015, To Mar. 2016

  Seminar II1 in Water Resources Engineering

  Year-long, 農学研究科
• From Apr. 2015, To Mar. 2016

  Seminar II in Water Resources Engineering

  Year-long, 農学研究科
• From Apr. 2015, To Mar. 2016

  Seminar I in Water Resources Engineering

  Fall, 農学研究科
• From Apr. 2015, To Mar. 2016

  Hydraulics

  Fall, 農学部
• From Apr. 2015, To Mar. 2016

  Laboratory Course in Hydraulics

  Spring, 農学部
• From Apr. 2015, To Mar. 2016

  Laboratory Course in Water Resources Engineering1

  Year-long, 農学研究科
• From Apr. 2015, To Mar. 2016

  Laboratory Course in Water Resources Engineering

  Year-long, 農学研究科
• From Apr. 2015, To Mar. 2016

  Hydraulic and Environmental Modeling

  Spring, 農学研究科
• From Apr. 2015, To Mar. 2016

  Seminar in Computational Hydraulics

  Fall, 農学部
• From Apr. 2016, To Mar. 2017

  Seminar II in Water Resources Engineering 1

  Year-long, 農学研究科
• From Apr. 2016, To Mar. 2017

  Seminar II in Water Resources Engineering 2

  Year-long, 農学研究科
• From Apr. 2016, To Mar. 2017

  Seminar II in Water Resources Engineering

  Year-long, 農学研究科
• From Apr. 2016, To Mar. 2017

  Seminar I in Water Resources Engineering

  Fall, 農学研究科
• From Apr. 2016, To Mar. 2017

  Hydraulics

  Fall, 農学部
• From Apr. 2016, To Mar. 2017

  Laboratory Course in Hydraulics

  Spring, 農学部
• From Apr. 2016, To Mar. 2017

  Laboratory Course in Water Resources Engineering1

  Year-long, 農学研究科
• From Apr. 2016, To Mar. 2017

  Laboratory Course in Water Resources Engineering2

  Year-long, 農学研究科
• From Apr. 2016, To Mar. 2017

  Laboratory Course in Water Resources Engineering

  Year-long, 農学研究科
• From Apr. 2016, To Mar. 2017

  Seminar in Computational Hydraulics

  Fall, 農学部
• From Apr. 2017, To Mar. 2018

  Seminar II in Water Resources Engineering 1

  Year-long, 農学研究科
• From Apr. 2017, To Mar. 2018

  Seminar II in Water Resources Engineering 2

  Year-long, 農学研究科
• From Apr. 2017, To Mar. 2018

  Seminar II in Water Resources Engineering

  Year-long, 農学研究科
• From Apr. 2017, To Mar. 2018

  Seminar I in Water Resources Engineering

  Fall, 農学研究科
• From Apr. 2017, To Mar. 2018

  Hydraulics

  Fall, 農学部
• From Apr. 2017, To Mar. 2018

  Laboratory Course in Hydraulics

  Spring, 農学部
• From Apr. 2017, To Mar. 2018

  Laboratory Course in Water Resources Engineering1

  Year-long, 農学研究科
• From Apr. 2017, To Mar. 2018

  Laboratory Course in Water Resources Engineering2

  Year-long, 農学研究科
• From Apr. 2017, To Mar. 2018

  Laboratory Course in Water Resources Engineering

  Year-long, 農学研究科
• From Apr. 2017, To Mar. 2018

  Hydraulic and Environmental Modeling

  Spring, 農学研究科
• From Apr. 2017, To Mar. 2018

  Seminar in Computational Hydraulics

  Fall, 農学部
• From Apr. 2018, To Mar. 2019

  Seminar II in Water Resources Engineering 1

  Year-long, 農学研究科
• From Apr. 2018, To Mar. 2019

  Seminar II in Water Resources Engineering 2

  Year-long, 農学研究科
• From Apr. 2018, To Mar. 2019

  Seminar I in Water Resources Engineering

  Fall, 農学研究科
• From Apr. 2018, To Mar. 2019

  Hydraulics

  Fall, 農学部
• From Apr. 2018, To Mar. 2019

  Laboratory Course in Hydraulics

  Spring, 農学部
• From Apr. 2018, To Mar. 2019

  Laboratory Course in Water Resources Engineering1

  Year-long, 農学研究科
• From Apr. 2018, To Mar. 2019

  Laboratory Course in Water Resources Engineering2

  Year-long, 農学研究科
• From Apr. 2018, To Mar. 2019

  Seminar in Computational Hydraulics

  Fall, 農学部
• From Apr. 2019, To Mar. 2020

  Seminar II in Water Resources Engineering 1

  Year-long, 農学研究科
• From Apr. 2019, To Mar. 2020

  Seminar II in Water Resources Engineering 2

  Year-long, 農学研究科
• From Apr. 2019, To Mar. 2020

  Seminar in Water Resources Engineering 1

  Year-long, 農学研究科
• From Apr. 2019, To Mar. 2020

  Seminar in Water Resources Engineering 2

  Year-long, 農学研究科
• From Apr. 2019, To Mar. 2020

  Hydraulics

  Fall, 農学部
• From Apr. 2019, To Mar. 2020

  Laboratory Course in Hydraulics

  Spring, 農学部
• From Apr. 2019, To Mar. 2020

  Laboratory Course in Water Resources Engineering 1

  Year-long, 農学研究科
• From Apr. 2019, To Mar. 2020

  Laboratory Course in Water Resources Engineering1

  Year-long, 農学研究科
• From Apr. 2019, To Mar. 2020

  Laboratory Course in Water Resources Engineering 2

  Year-long, 農学研究科
• From Apr. 2019, To Mar. 2020

  Laboratory Course in Water Resources Engineering2

  Year-long, 農学研究科
• From Apr. 2019, To Mar. 2020

  Hydraulic and Environmental Modeling

  Spring, 農学研究科
• From Apr. 2019, To Mar. 2020

  Seminar in Computational Hydraulics

  Fall, 農学部
• From Apr. 2020, To Mar. 2021

  Seminar II in Water Resources Engineering 1

  Year-long, 農学研究科
• From Apr. 2020, To Mar. 2021

  Seminar II in Water Resources Engineering 2

  Year-long, 農学研究科
• From Apr. 2020, To Mar. 2021

  Seminar in Water Resources Engineering 1

  Year-long, 農学研究科
• From Apr. 2020, To Mar. 2021

  Seminar in Water Resources Engineering 2

  Year-long, 農学研究科
• From Apr. 2020, To Mar. 2021

  Hydraulics

  Fall, 農学部
• From Apr. 2020, To Mar. 2021

  Laboratory Course in Hydraulics

  Year-long, 農学部
• From Apr. 2020, To Mar. 2021

  Laboratory Course in Water Resources Engineering1

  Year-long, 農学研究科
• From Apr. 2020, To Mar. 2021

  Laboratory Course in Water Resources Engineering2

  Year-long, 農学研究科
• From Apr. 2020, To Mar. 2021

  Laboratory Course in Water Resources Engineering 1

  Year-long, 農学研究科
• From Apr. 2020, To Mar. 2021

  Laboratory Course in Water Resources Engineering 2

  Year-long, 農学研究科
• From Apr. 2020, To Mar. 2021

  Seminar in Computational Hydraulics

  Fall, 農学部
• From Apr. 2021, To Mar. 2022

  Seminar in Water Resources Engineering 1

  Year-long, 農学研究科
• From Apr. 2021, To Mar. 2022

  Seminar in Water Resources Engineering 2

  Year-long, 農学研究科
• From Apr. 2021, To Mar. 2022

  Hydraulics

  Fall, 農学部
• From Apr. 2021, To Mar. 2022

  Laboratory Course in Hydraulics

  Spring, 農学部
• From Apr. 2021, To Mar. 2022

  Laboratory Course in Water Resources Engineering 1

  Year-long, 農学研究科
• From Apr. 2021, To Mar. 2022

  Laboratory Course in Water Resources Engineering 2

  Year-long, 農学研究科
• From Apr. 2021, To Mar. 2022

  Hydraulic and Environmental Modeling

  Spring, 農学研究科
• From Apr. 2021, To Mar. 2022

  Seminar in Computational Hydraulics

  Fall, 農学部

Participation in PhD Defense

• Generalized Solutions to Several Problems in Open Channel Hydraulics

  MEAN SOVANNA, Graduate School of Agriculture, Sub-chief Examiner

  24 Sep. 2021

Student achievements: Awards

• PAWEES Student Award

  Yoshioka H, PAWEES, 29 Oct. 2011
• Oral Presentation Award

  Erfaneh Sharifi, JRCSA (Japan Rainwater Catchment Systems Association), 01 Nov. 2015

Administration

Faculty management (title, position)

• From 01 Apr. 2013, To 31 Mar. 2023

  情報セキュリティ・システム委員会　委員

Academic, Social Contribution

Committee Memberships

• From 2004, To 2007

  事務局長, 日本雨水資源化システム学会
• From 2004, To 2007

  Secretary General, JRCSA