OKADERA Tomohiro

Researcher Name
OKADERA Tomohiro
Div (Section) name/title
Regional Environment Conservation Division（Environment Management and Technology Section）／Senior Researcher
Research Subject
Water-energy-nexus-based research using regional inventories and its application
Degree(s)
Dr. of Eng.
Professional Qualification(s)
Civil Engineering
Environmental Speciality Field
environmental economics
Keyword(s)
Input-Output Analysis,Material flow analysis,Virtual water,Water footprint,Water pollutants,Changjiang river,Asia,Ecosystem Service,Water-energy nexus
Membership of Academic Society
Japan Section of the Regional Science Association,Applied Regional Science Conference,Society for Environmental Economics and Policy Studies (SEEPS)

Research Subject

  • Fiscal Year: 2025

    • 27188 : Climate Change and Air Quality Research Program
    • 27198 : Decarbonized and Sustainable Society Research Program
    • 27203 : Quantitative evaluation of natural and anthropogenic sinks and sources of greenhouse gases at global scale
    • 27222 : Proposal and evaluation of environmentally efficient technologies and systems in collaboration with local communities
    • 27224 : Co-designing solution and its implementation to develop sustainable regional society
    • 27234 : Research on Advancement of Climate Change Impact Assessment Methodology
    • 27236 : Simultaneous achievement of global decarbonization and sustainability
    • 27247 : Regional Environment Conservation Domain: Foresight and Advanced Basic Research
    • 27363 : Intellectual research infrastructure development：Systematic monitoring, development of information on impact prediction and adaptation, and development of tools in the field of climate change adaptation
    • 27394 : Comprehensive Japanese nitrogen management for reducing nitrogen waste
    • 27567 : Green technology for extracting phosphoric acid from sewage sludge incineration ash

  • Fiscal Year: 2024

    • 26799 : Climate Change and Air Quality Research Program
    • 26811 : Decarbonized and Sustainable Society Research Program
    • 26815 : Quantitative evaluation of natural and anthropogenic sinks and sources of greenhouse gases at global scale
    • 26837 : Proposal and evaluation of environmentally efficient technologies and systems in collaboration with local communities
    • 26841 : Co-designing solution and its implementation to develop sustainable regional society
    • 26849 : Research on Advancement of Climate Change Impact Assessment Methodology
    • 26852 : Simultaneous achievement of global decarbonization and sustainability
    • 26864 : Regional Environment Conservation Domain: Foresight and Advanced Basic Research
    • 27042 : Comprehensive Japanese nitrogen management for reducing nitrogen waste
    • 27100 : Intellectual research infrastructure development：Systematic monitoring, development of information on impact prediction and adaptation, and development of tools in the field of climate change adaptation

  • Fiscal Year: 2023

    • 26400 : Climate Change and Air Quality Research Program
    • 26406 : Decarbonized and Sustainable Society Research Program
    • 26409 : Quantitative evaluation of natural and anthropogenic sinks and sources of greenhouse gases at global scale
    • 26426 : Proposal and evaluation of environmentally efficient technologies and systems in collaboration with local communities
    • 26428 : Co-designing solution and its implementation to develop sustainable regional society
    • 26436 : Research on Advancement of Climate Change Impact Assessment Methodology
    • 26438 : Simultaneous achievement of global decarbonization and sustainability
    • 26453 : Regional Environment Conservation Domain: Foresight and Advanced Basic Research
    • 26509 : Evaluation of the fate of pathogenic bacteria with a view to reducing hygiene risk and development and implementation of appropriate wastewater treatment technology
    • 26667 : Comprehensive Japanese nitrogen management for reducing nitrogen waste
    • 26736 : Intellectual research infrastructure development：Systematic monitoring, development of information on impact prediction and adaptation, and development of tools in the field of climate change adaptation

  • Fiscal Year: 2022

    • 25964 : Climate Change and Air Quality Research Program
    • 25965 : Quantitative evaluation of natural and anthropogenic sinks and sources of greenhouse gases at global scale
    • 25984 : Decarbonized and Sustainable Society Research Program
    • 25985 : Simultaneous achievement of global decarbonization and sustainability
    • 25990 : Proposal and evaluation of environmentally efficient technologies and systems in collaboration with local communities
    • 25992 : Co-designing solution and its implementation to develop sustainable regional society
    • 26002 : Research on Advancement of Climate Change Impact Assessment Methodology
    • 26010 : Regional Environment Conservation Domain: Foresight and Advanced Basic Research
    • 26084 : Evaluation of the fate of pathogenic bacteria with a view to reducing hygiene risk and development and implementation of appropriate wastewater treatment technology
    • 26293 : Intellectual research infrastructure development：Systematic monitoring, development of information on impact prediction and adaptation, and development of tools in the field of climate change adaptation

  • Fiscal Year: 2021

    • 25498 : Climate Change and Air Quality Research Program
    • 25504 : Decarbonized and Sustainable Society Research Program
    • 25506 : Quantitative evaluation of natural and anthropogenic sinks and sources of greenhouse gases at global scale
    • 25523 : Proposal and evaluation of environmentally efficient technologies and systems in collaboration with local communities
    • 25525 : Co-designing solution and its implementation to develop sustainable regional society
    • 25532 : Simultaneous achievement of global decarbonization and sustainability
    • 25536 : Research on Advancement of Climate Change Impact Assessment Methodology
    • 25621 : Evaluation of the fate of pathogenic bacteria with a view to reducing hygiene risk and development and implementation of appropriate wastewater treatment technology
    • 25674 : Intellectual research infrastructure development：Systematic monitoring, development of information on impact prediction and adaptation, and development of tools in the field of climate change adaptation
    • 25713 : Regional Environment Conservation Domain: Foresight and Advanced Basic Research

  • Fiscal Year: 2020

    • 25099 : Research Program on Health and Environmental Safety
    • 25100 : Environment-Economy-Society Integration Research Program
    • 25147 : Project to Develop Water Quality Improvement and Assessment Methods for Aquatic Environment Conservation
    • 25150 : Study on Development of Integrated Roadmap for Environment and Society at Regional Scale Focusing Adaptation and Mitigation
    • 25302 : Evaluation of the pasture carrying capacity and its vulnerability based on water resources in arid and semi-arid regions
    • 25319 : Feasibility study on the application of information and communication technologies for supply chain management of waste
    • 25327 : Studies on Advancing the Methods for Climate Change Impacts Assessment
    • 25446 : Policy dialogue and network building of multi-stakeholders on integrated decentralized domestic wastewater management in ASEAN countries

  • Fiscal Year: 2019

    • 24694 : Sustainable Material Cycles Research Program
    • 24696 : Research Program on Health and Environmental Safety
    • 24697 : Environment-Economy-Society Integration Research Program
    • 24727 : Project to Develop Water Quality Improvement and Assessment Methods for Aquatic Environment Conservation
    • 24730 : Study on Development of Integrated Roadmap for Environment and Society at Regional Scale Focusing Adaptation and Mitigation
    • 24831 : Policy dialogue and network building of multi-stakeholders on integrated decentralized domestic wastewater management in ASEAN countries
    • 24918 : Feasibility study on the application of information and communication technologies for supply chain management of waste
    • 24975 : Studies on Advancing the Methods for Climate Change Impacts Assessment
    • 25061 : CO2 sequestration by rangeland in Mongolia
    • 25062 : Evaluation of the pasture carrying capacity and its vulnerability based on water resources in arid and semi-arid regions

  • Fiscal Year: 2018

    • 24297 : Advancement of sustainable and integrated waste management system in Asia
    • 24310 : Project to develop water quality improvement and assessment methods for aquatic environment conservation
    • 24314 : Study on development of integrated roadmap for environment and society at regional scale focusing adaptation and mitigation
    • 24353 : Sustainable Material Cycles Research Program
    • 24355 : Research program on health and environmental safety
    • 24356 : Environment-Economy-Society Integration Research Program
    • 24394 : Development of adaptation technology for sewage under rainy weather and its evaluation on water environment
    • 24457 : Evaluation of the pasture carrying capacity and its vulnerability based on water resources in arid and semi-arid regions
    • 24462 : Vulnerability assessment of electric power generation systems under water constraint and adaptation for countries in Southern Asia region
    • 24472 : CO2 Sequestration by Rangeland in Mongolia
    • 24586 : Integrated Approach for Dissemination of Decentralized Domestic Wastewater Treatment System in Southeast Asia

  • Fiscal Year: 2017

    • 23815 : Study on development of integrated roadmap for environment and society at regional scale focusing adaptation and mitigation
    • 23818 : Project to develop water quality improvement and assessment methods for aquatic environment conservation
    • 23831 : Advancement of sustainable and integrated waste management system in Asia
    • 23844 : Sustainable Material Cycles Research Program
    • 23846 : Environment-Economy-Society Integration Research Program
    • 23847 : Research program on health and environmental safety
    • 23996 : Integrated Approach for Dissemination of Decentralized Domestic Wastewater Treatment System in Southeast Asia
    • 24117 : CO2 Sequestration by Rangeland in Mongolia
    • 24214 : Vulnerability assessment of electric power generation systems under water constraint and adaptation for countries in Southern Asia region
    • 24216 : Development of adaptation technology for sewage under rainy weather and its evaluation on water environment

  • Fiscal Year: 2016

    • 23414 : Research program on health and environmental safety
    • 23421 : Project to develop water quality improvement and assessment methods for aquatic environment conservation
    • 23423 : Environment-Economy-Society Integration Research Program
    • 23425 : Study on development of integrated roadmap for environment and society at regional scale focusing adaptation and mitigation
    • 23585 : Integrated Approach for Dissemination of Decentralized Domestic Wastewater Treatment System in Southeast Asia
    • 23679 : CO2 Sequestration by Rangeland in Mongolia

  • Fiscal Year: 2015

    • 23005 : Analyses of the impact of the anthropogenic pollution on the ecosystem of the East China Sea and the sea around Japan
    • 23014 : Evaluation system of environmental technologies and policies and its societal implementation process
    • 23311 : CO2 Sequestration by Rangeland in Mongolia

  • Fiscal Year: 2014

    • 22593 : Analyses of the impact of the anthropogenic pollution on the ecosystem of the East China Sea and the sea around Japan
    • 22602 : Evaluation system of environmental technologies and policies and its societal implementation process
    • 22639 : Vulnerability assessment and its adaptation strategies in permafrost region of Mongolia

  • Fiscal Year: 2013

    • 22177 : Analyses of the impact of the anthropogenic pollution on the ecosystem of the East China Sea and the sea around Japan
    • 22186 : Evaluation system of environmental technologies and policies and its societal implementation process
    • 22258 : Vulnerability assessment and its adaptation strategies in permafrost region of Mongolia
    • 22397 : Planning and evaluation system for resource circulation in Asia cities based on the Japanese environmental technologies and policies

  • Fiscal Year: 2012

    • 21748 : Analyses of the impact of the anthropogenic pollution on the ecosystem of the East China Sea and the sea around Japan
    • 21757 : Evaluation system of environmental technologies and policies and its societal implementation process
    • 21839 : Vulnerability assessment and its adaptation strategies in permafrost region of Mongolia
    • 21956 : Planning and evaluation system for resource circulation in Asia cities based on the Japanese environmental technologies and policies

  • Fiscal Year: 2011

    • 21306 : Analyses of the impact of the anthropogenic pollution on the ecosystem of the East China Sea and the sea around Japan
    • 21315 : Evaluation system of environmental technologies and policies and its societal implementation process
    • 21575 : Planning and evaluation system for resource circulation in Asia cities based on the Japanese environmental technologies and policies
    • 21613 : Ecosystem Services Assessment of Satoyama, Satochi and Satoumi to Identify New Commons for Nature-Harmonious Society
    • 21712 : Development of the systems for evaluating regional water and material cycles in East Asia

  • Fiscal Year: 2010

    • 21078 : Integrative Environmental Planning and Evaluation System to Design Environmental Policy and Technology Scenarios for Asian Metropolitan Cities
    • 21163 : Development of the systems for evaluating regional water and material cycles in East Asia
    • 21165 : Establishment of Early Detection Network of the Global Warming Impacts
    • 21167 : Ecosystem Services Assessment of Satoyama, Satochi and Satoumi to Identify New Commons for Nature-Harmonious Society

  • Fiscal Year: 2009

    • 20593 : Integrative Environmental Planning and Evaluation System to Design Environmental Policy and Technology Scenarios for Asian Metropolitan Cities
    • 20594 : Development of Environmental Management Technology for Sustainable utilization of Biomass.
    • 20599 : Development of the systems for evaluating regional water and material cycles in East Asia
    • 20600 : Establishment of Early Detection Network of the Global Warming Impacts
    • 20690 : Evaluation of ecosystem service of Satoyama, Satochi and Satoumi and reconstruction of natural symbiosis society by a new commons

  • Fiscal Year: 2008

    • 20231 : Development of the systems for evaluating regional water and material cycles in East Asia
    • 20232 : Establishment of Early Detection Network of the Global Warming Impacts
    • 20238 : Development of Environmental Management Technology for Sustainable utilization of Biomass.
    • 20265 : Integrative Environmental Planning and Evaluation System to Design Environmental Policy and Technology Scenarios for Asian Metropolitan Cities

  • Fiscal Year: 2007

    • 10545 : Establishment of Early Detection Network of the Global Warming Impacts
    • 10587 : Development of the systems for evaluating regional water and material cycles in East Asia

  • Fiscal Year: 2006

    • 10284 : Establishment of Early Detection Network of the Global Warming Impacts
    • 10320 : Development of the systems for evaluating regional water and material cycles in East Asia

  • Fiscal Year: 2005

    • 9329 : Study on mathematical model of environmental management of river catchment
    • 9351 : Research project on integrated environmental management aided by modelling of eco-system functions through the basin in East Asia(2) Research on systems analysis on watershed environmens and its application
    • 9597 : The study on Environmental Monitoring and Environmental Database in urban and basin scale

  • Fiscal Year: 2004

    • 8936 : Study on mathematical model of environmental management of river catchment
    • 8987 : Research project on integrated environmental management aided by modelling of eco-system functions through the basin in East Asia(2) Research on systems analysis on watershed environmens and its application

  • Fiscal Year: 2003

    • 8600 : Study on mathematical model of environmental management of river catchment
    • 8704 : Research project on integrated environmental management aided by modelling of eco-system functions through the basin in East Asia(2) Research on systems analysis on watershed environmens and its application
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Research Result (Publication)

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  • Investigating Challenges and Countermeasures for the Yoshinogawa River Environment in Japan
    Presenter : Wang Q-X., Okadera T., Kameyama S.
    Title : , Engineering Geology for a Habitable Earth: IAEG XIV Congress 2023 Proceedings, Chengdu, China  (2024)
  • Analysis of Water Demand and Water Pollutant Discharge Using a Regional Input-Output Table: An Application to the City of Chongqing, Upstream of the Three Gorges Dam in China
    Presenter : Okadera T., Watanabe M., Xu K-Q.
    Title : , Recent Developments in Input–Output Analysis - Volume 1 (2020)
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Research Result (Presentation)

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  • Degradation of Mongolian Grassland under Different Scenarios
    Presenter : Wang Q-X., Okadera T., Nakayama T., Wu T., Batkhishig O.,
    Name of Society : AES-EAS Talks, Ecological Society of America (ESA) (2025)
    Name of Proceedings : Abstracts
  • Appropriate Japanese Technologies of Water and Energy Management for applying in Thai industries
    Presenter : Okadera T.
    Name of Society : ECO Innovation Forum 2019 Circular Economy : Way to Smart and Sustainable Eco Industrial Town (2019)
    Name of Proceedings : -
  • Academic exchange on water-energy-based research of NIES
    Presenter : Okadera T.
    Name of Society : Academic Exchange with North China Electric Power University (NCEPU) (2019)
    Name of Proceedings : -
  • Water-Energy Nexus and Application to South Asian Countries
    Presenter : Okadera T.
    Name of Society : Workshop on Harnessing of Climate-Water-Energy Nexus for Resource Security in the Ganga River Basin (2018)
    Name of Proceedings : -
  • Water-energy-nexus-based assessment in Mongolia as an Arid and Semi-arid Region
    Presenter : Okadera T., Eerdeni, Wang Q-X.
    Name of Society : International Workshop on Environmental Vulnerability and Adaptation Strategies in Arid and Semi-arid Regions (2018)
    Name of Proceedings : -
  • Assessment of Grassland Carrying Capacity and its Vulnerability in Arid and Semi-arid Regions---Taking the Mongolia as an Example
    Presenter : Wang Q-X., Okadera T., Eerdeni, Watanabe M., Batkhishig O., Battogtokh D., Wu T.
    Name of Society : International Workshop on Environmental Vulnerability and Adaptation Strategies in Arid and Semi-arid Regions (2018)
    Name of Proceedings : -
  • Study on the Degradation of Permafrost, Vulnerabilities of Steppe Ecosystems and Adaptation Countermeasures in Mongolia
    Presenter : Wang Q-X., Okadera T., Eerdeni, Watanabe M., Batkhishig O., Battogtokh D., Wu T.
    Name of Society : 3rd International Forum On Sustainable Future in Asia- 3rd NIES International Forum (2018)
    Name of Proceedings : Abstracts, 27
  • Water scarcity and power generation in arid and semi-arid regions: A case of Mongolia
    Presenter : Okadera T., Eerdeni, Wang Q-X.
    Name of Society : A JSPS (Japan) and DST (lndia) Bilateral Joint Research Seminar Knowledge sharing workshop on adopting Water-Energy-Food Nexus Approach in India (2017)
    Name of Proceedings : -
  • Carbon fluxes in grassland ecosystems of Mongolia
    Presenter : Wang Q-X., Okadera T., Eerdeni, Watanabe M., Batkhishig O.
    Name of Society : Workshop on Carbon Fluxes & Sequestration in the Ecosystems of Mongolia (2017)
    Name of Proceedings : -
  • Overlooking Water-Energy-Nexus and Sustainable Development Goals
    Presenter : Okadera T.
    Name of Society : Workshop on Tracing Synergies in Water-Energy-Food Nexus for Making Path to Achieve Sustainable Development Goals (SDGs) (2017)
    Name of Proceedings : -
  • Water footprint of energy in Thailand (Tentative)
    Presenter : Okadera T.
    Name of Society : A special agenda "NIES' Water-based Research Projects in Thailand" in JICA Training Course for country forcuse traning for "Techinical workshop on the quasi-real time and forecast simulation of H08" course (2015)
    Name of Proceedings : -
  • Water for energy production in Mongolia
    Presenter : Okadera T.
    Name of Society : International workshop on Adaptation for Climate Change and Green Development in Mongolia (2015)
    Name of Proceedings : -
  • Water for Energy Production in Mongolia
    Presenter : Okadera T.
    Name of Society : International Cooperation Seminar on Vulnerability Investigation in Asian Permafrost Regions (2014)
    Name of Proceedings : -
  • Developing an inventory model for evaluating the demand of water resource
    Presenter : Okadera T.
    Name of Society : International Seminar on Environmental Vulnerability and its Adaptation Strategies in Arid and Semi-Arid Regions (2019)
    Name of Proceedings : -
  • Toward updating water withdrawal submodel of H08: Water for power generation in Thailand
    Presenter : Okadera T.
    Name of Society : Workshop Reservoirs in Japan and Thailand (2017)
    Name of Proceedings : -
  • Water demand by the power stations for the JCM-MRV project
    Presenter : Okadera T., Eerdeni, Wang Q-X.
    Name of Society : Joint seminar on water and carbon management in mining industry areas in Mongolia for the JCM-MRV project (2016)
    Name of Proceedings : -
  • A Case Study on Water-Energy Nexus in Mongolia --- Water Scarcity by Power Generation
    Presenter : Okadera T., Eerdeni, Wang Q-X.
    Name of Society : Workshop on Nexus-based Catchment Environmental Management for Future Asia (2016)
    Name of Proceedings : -
  • Water demand for power generation and water resources in Ulaanbaatar
    Presenter : Okadera T., Eerdeni, Wang Q-X.
    Name of Society : Brain storming workshop on the JCM project (2016)
    Name of Proceedings : -
  • Relevance to global water scarcity by energy trade of Thailand
    Presenter : Okadera T.
    Name of Society : 01210697 Seminar for Environmental Engineering (2021)
    Name of Proceedings : -
  • Climate change adaptation and water-energy nexus for Asia
    Presenter : Okadera T.
    Name of Society : Lecture for visitors to National Institute for Environmental Studies (2019)
    Name of Proceedings : -
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