Akihiko KoteraLecturer

■Researcher basic information

Organization

  • College of Agriculture Department of Regional and Comprehensive Agriculture
  • Graduate School of Agriculture（ Master's Program） Major in Agricultural Science Course in Regional Collaboration
  • Global and Local Environment Co-creation Institute
  • Faculty of Applied Biological Science Domain of Regional and Comprehensive Agriculture

Research Areas

  • Environmental science/Agricultural science, Crop production science
  • Environmental science/Agricultural science, Environmental impact assessment
  • Environmental science/Agricultural science, Agricultural environmental and information engineering
  • Environmental science/Agricultural science, Rural environmental engineering and planning

Research Keyword

  • 温暖化影響
  • モデル
  • ベトナム
  • イネ
  • Vietnam
  • global warming
  • rice

Degree

  • 2005年11月　博士（農学）（京都大学）
  • 1997年03月　修士（農学）（京都大学）

Educational Background

  • Nov. 2005, 京都大学 大学院農学研究科博士後期課程地域環境科学専攻修了
  • Apr. 1997 - Sep. 2005, Kyoto University, 農学研究科, 地域環境科学専攻
  • Apr. 1995 - Mar. 1997, Kyoto University, 農学研究科, 地域環境科学専攻
  • Mar. 1997, Kyoto University, 農学研究科, 地域環境科学
  • Apr. 1991 - Mar. 1995, Chiba University, 園芸学部, 生物生産科学科
  • Mar. 1995, Chiba University, Faculty of Horticulture, 生物生産科学

Career

  • Apr. 2024 - Present, Faculty of Applied Biological Science Domain, Ibaraki University, College of Agriculture Department of Regional and Comprehensive Agriculture, Lecturer
  • Feb. 2021 - Present, Ibaraki University, Global and Local Environment Co-creation Institute, Lecturer
  • Aug. 2017 - Jan. 2021, Vietnam Japan University, Master's program in Climate Change and Development, Lecturer/JICA expert
  • Apr. 2017 - Aug. 2017, Ibaraki University, 地球変動適応科学研究機関, 学術振興研究員
  • Apr. 2016 - Mar. 2017, Kobe University, 先端融合研究環, 助教
  • Jan. 2015 - Mar. 2016, Research Institute for Humanity and Nature, 上級研究員
  • Apr. 2010 - Dec. 2014, Kobe University, 農学研究科, 学術推進研究員
  • Oct. 2005 - Mar. 2010, National Institute for Agro-Environmental Sciences, 農環研特別研究員

Member History

  • Apr. 2021 - Present, 茨城県地域気候変動適応センター運営委員会, 茨城県地域気候変動適応センター

■Research activity information

Paper

  • Climate change impacts and adaptation in the agricultural sector: a comparison of questionnaire surveys on farmers’ perceptions in southern Ibaraki, Japan, in 2020 and 2025　　　　　　　　　　　　　　　
    Akihiko KOTERA; Taketo SAITO; Makoto TAMURA, Lead
    Japanese Journal of JSCE, 2026, [Reviewed]
  • Water quality and local perceptions of ecosystems: Implications for sustainable management in Xuan Thuy National Park　　　　　　　　　　　　　　　
    Do Kim Thoa; Nguyen Thao Ly; Tao Khanh Linh; Tran Thuy Trang; Nguyen Thi; Hoang Ha; Nguyen Thanh Hien; Luu Viet Dung; Dang Van Dong; Mai Trong Nhuan; Bui Thi Hoa; Kotera Akihiko; Ishikawa-Ishiwata Yuki, Vietnam National University Press, Hanoi
    Proceedings of the the 1st International Conference on Innovation and Sustainability (ICIS2025): Environment and Climate Resilient Development in the Era of Artificial Intelligence. ISBN978-604-43-6153-6, 2026, [Reviewed]
  • CLIMATE CHANGE IMPACTS AND ADAPTATIONS IN DAIGO TOWN, IBARAKI: 2023 SURVEY OF OKUKUJI APPLE AND DAIGO LACQUER FARMERS’ PERCEPTIONS
    田村誠; 小寺昭彦; 今井葉子, Japan Society of Civil Engineers
    土木学会論文集(Web), Jul. 2024, [Reviewed]
  • A Concept of Time Domain Management for Resilient Rice Production　　　　　　　　　　　　　　　
    Kotera; A., Lead
    ICSEA2022 INTERNATIONAL CONFERENCE ON SUSTAINABILITY IN ENVIRONMENT AND AGRICULTURE 2022. Vietnam Japan University, Hanoi, Vietnam, 11 Nov. 2022, [Reviewed]
  • Post-irrigation degradation of land and environmental resources in the Harran plain, southeastern Turkey
    Bilgili; Ali Volkan; Yeşilnacar; İrfan; Kotera; Akihiko; Nagano; Takanori; Aydemir; Aydın; Hızlı; Hüseyin; Bilgili; Ayşin
    Environmental Monitoring and Assessment, Jan. 2018, [Reviewed]
  • Determination of patterns of rainfall history creating situations for accurate classification of rain-fed paddy fields with SAR backscatter coefficients
    Keisuke Hoshikawa; Kazuo Watanabe; Takanori Nagano; Akihiko Kotera; Yoichi Fujihara
    Remote Sensing Applications: Society and Environment, 01 Jan. 2018
  • Assessing the degree of flood damage to rice crops in the Chao Phraya delta, Thailand, using MODIS satellite imaging
    Akihiko Kotera; Takanori Nagano; Patinya Hanittinan; Sucharit Koontanakulvong
    PADDY AND WATER ENVIRONMENT, Jan. 2016, [Reviewed]
  • A global dataset of noiseless time-series vegetation and water indices for farmland analysis
    Akihiko Kotera; Takanori Nagano; Suha Berberoglu; Mehmet Ali Cullu
    2015 FOURTH INTERNATIONAL CONFERENCE ON AGRO-GEOINFORMATICS, 2015, [Reviewed]
  • A New MODIS Global Product Noiseless Time-series Vegetation & Water Indices for Farmland Analysis　　　　　　　　　　　　　　　
    Akihiko KOTERA; Takanori NAGANO; Süha Berberoğlu; Mehmet Ali Çullu, Agrogeoinformatics
    Proceedings of 4th International Agro-Geoinformatics 2015 Conference, 2015
  • Classification of crop fields in northeast Thailand based on hydrological characteristics detected by L-band SAR backscatter data
    Keisuke Hoshikawa; Takanori Nagano; Akihiko Kotera; Kazuo Watanabe; Yoichi Fujihara; Osamu Kozan
    REMOTE SENSING LETTERS, Apr. 2014
  • Water level change and its factor analysis in the Vietnamese Mekong Delta
    Fujihara Yoichi; Hoshikawa Keisuke; Fujii Hideto; Kotera Akihiko; Nagano Takanori; Yokoyama Shigeki, We considered four factors that could have increased the water level in the Vietnamese Mekong Delta: (1) sea level rise, (2) land subsidence, (3) flood, and (4) decrease in flood mitigation functions due to dyke constructions. First, we classified the Delta into two groups; one area is dominated by flows from upstream, while the other is mainly dominated by tide. Moreover, we obtained the trend of maximum and minimum water level. We used NDVI to estimate the area of dyke construction. It is found that the dyke area does not coincide with the area of maximum water level increase. The area with the maximum water level increase correlates with the area with the minimum water level increase. The area with the minimum water level increase is located in the tide-dominated zone, indicating that the increase in the maximum water level is caused by the sea level rise and land subsidence., THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES
    Proceeding of Annual Conference, 2014
  • Recent trend of drought conciliation and agricultural water use in Japan　　　　　　　　　　　　　　　
    Nagano T; Kotera Akihiko, ICID
    Proceedings of the first World Irrigation Forum, Oct. 2013
  • A modeling approach for assessing rice cropping cycle affected by flooding, salinity intrusion and monsoon rains in the Mekong Delta, Vietnam
    Kotera, A; N. D. Khang; T. Sakamoto; T. Iizumi; M. Yokozawa
    Paddy and Water Environment, Jul. 2013, [Reviewed]
  • Statistical downscaling with Bayesian inference: Estimating global solar radiation from reanalysis and limited observed data
    Iizumi, T; M. Nishimori; M. Yokozawa; A. Kotera; N. D. Khang
    International Journal of Climatology, 2012, [Reviewed]
  • Relationship between successful participation of the enterprise to farming and its contribution to host community
    多田ひかり; 長野宇規; 小寺昭彦, 企業の農業参入に関する既存研究より考察した参入企業の持続性に重要である条件に則し事例分析を行った。その結果,事例企業において持続的な経営と地域貢献の相乗的な繋がりが明らかになった。企業は地域の人的資源を活かすことで持続的な経営を可能としている。また,そのような働きかけが地域に新たな資源を提供し,地域への貢献に繋がっている。地域のルールを守りながら共同作業やコミュニケーションの機会に参加することが,地域の文脈を知り,地域の実状に合わせて経営を行い,地域の人的資源を活かすことに繋がっている。, 農村計画学会
    農村計画学会誌, 15 Nov. 2011, [Reviewed]
  • Agro-ecological interpretation of rice cropping systems in flood-prone areas using MODIS imagery
    Toshihiro Sakamoto; Toshihiro Sakamoto; Phung Van Cao; Nhan Van Nguyen; Akihiko Kotera; Masayuki Yokozawa
    Photogrammetric Engineering and Remote Sensing, 01 Apr. 2009
  • Regional Consequences of Seawater Intrusion on Rice Productivity and Land Use in Coastal Area of the Mekong River Delta
    Akihiko Kotera; Toshihiro Sakamoto; Duy Khang Nguyen; Masayuki Yokozawa
    JARQ-JAPAN AGRICULTURAL RESEARCH QUARTERLY, Oct. 2008
  • Determining the Spatial Pattern of Rice Cropping Schedules using Time-Series Satellite Imagery of the Red River Delta, Vietnam　　　　　　　　　　　　　　　
    Kotera; A.; Sakamoto; T.; and Yokozawa; M.
    International Journal of Geoinformatics, 01 Dec. 2007, [Reviewed]
  • Detecting temporal changes in the extent of annual flooding within the Cambodia and the Vietnamese Mekong Delta from MODIS time-series imagery
    Toshihiro Sakamoto; Nhan Van Nguyen; Akihiko Kotera; Hiroyuki Ohno; Naoki Ishitsuka; Masayuki Yokozawa
    Remote Sensing of Environment, 15 Aug. 2007
  • Role of plant height in the submergence tolerance of rice: A simulation analysis using an empirical model
    Akihiko Kotera; Eiji Nawata
    AGRICULTURAL WATER MANAGEMENT, Apr. 2007
  • Influence of Flooding on Rice and Its Risk Mitigation in the Red River Delta, Vietnam　　　　　　　　　　　　　　　
    Kotera Akihiko, Lead
    Doctoral thesis, Kyoto Univ., Nov. 2005, [Reviewed]
  • Application of wavelet analysis to the multi-temporal modis data for detecting the rice phenology
    Toshihiro Sakamoto; Akihiko Kotera; Naoki Ishitsuka; Hiroyuki Ohno; Nhan Van Nguyen; Masayuki Yokozawa
    Asian Association on Remote Sensing - 26th Asian Conference on Remote Sensing and 2nd Asian Space Conference, ACRS 2005, 2005
  • Effect of Submergence on Rice Yield in the Red River Delta, Vietnam
    Kotera; A; Nawata; E; Thao; L.V; Vuong; N.V; Sakuratani; T, The yield of rice after 5 days of complete submergence at different growth stages was compared between the high-yielding varieties (HYVs), Tap Giao 4 and CR203, and a local variety, Moc Tuyen, cultivated extensively in the Red River Delta, Vietnam, to assess the difference in the rice flooding tolerance before and after the introduction of HYVs, which are generally considered to be susceptible to flooding. Although the variety with the most severe yield reduction was different depending on he growth stages when submerged, the yield of Moc Tuyen was the lowest among the three varieties except for submergence at the tillering stages. Based on these results and the pattern of severe flooding occurrence, it appears that flooding damage to rice production was not anticipated to increase by the introduction of these two HYVs in this region. Then, we tested further aspects of the effect of submergence at different growth stages for different durations of 2, 5 and 8 days, and water depths, namely submergence of three-quarters or full submergence of the plants, using CR203, to detect critical conditions, under which yield reduction would be enhanced. When the plants were submerged at the tillering stages with three-quarters of plants height, the yields hardly decreased even in the 8 days of submergence, whereas in the plants with complete submergence, the yields decreased severely by submergence lasting for more than 5 days. It could thus be possible to mitigate the yield reduction of CR203 at the tillering stages by limiting the duration of complete submergence to less than 2 days., Japanese Society for Tropical Agriculture
    Jpn. J. Trop. Agr., Jan. 2005, [Reviewed]
  • A model for phenological development of Vietnamese rice influenced by transplanting shock
    A Kotera; E Nawata; P Van Chuong; NN Giao; T Sakuratani
    PLANT PRODUCTION SCIENCE, Mar. 2004, [Reviewed]

MISC

Books and other publications

Lectures, oral presentations, etc.

  • 農業分野における気候変動影響と適応策 ：茨城県県南地域における2020 年および2025 年アンケート調査の比較　　　　　　　　　　　　　　　
    小寺 昭彦; 齊藤 丈人; 田村 誠
    土木学会 第34 回地球環境シンポジウム, 09 Sep. 2026
    20260909, 20260911
  • どこまで暑くなるのか ー影響と適応のアイデアー　　　　　　　　　　　　　　　
    小寺 昭彦
    まちのイバダイ X 水戸のまちなかデザインシンポジウム 「酷暑を乗り切るワンアクションー気候変動時代のまちなかでウォーカブルを考える」, 28 Mar. 2026
  • 農業は暑さにどう向き合うか？ー霞ヶ浦周辺地域における 農家アンケート調査結果の報告ー　　　　　　　　　　　　　　　
    小寺昭彦
    2025年度茨城県地域気候変動適応センターシンポジウム, 10 Mar. 2026
  • Planning and Evaluation of Climate Change Mitigation and Adaptation Measures from the Perspective of Imaginary Future Generations　　　　　　　　　　　　　　　
    Kazuma Hirota; Akihiko Kotera; Makoto Tamura; Keishiro Hara
    EcoDesign 2025 International Symposium, 13 Nov. 2025
    20251112, 20251114
  • 人工衛星画像による霞ヶ浦のアオコ可視化の試み　　　　　　　　　　　　　　　
    村山邦彦; 小寺昭彦; 前田滋哉
    第76回農業農村工学会関東支部講演会, 10 Nov. 2025
  • Water quality and local perceptions of ecosystems: Implications for sustainable management in Xuan Thuy National Park　　　　　　　　　　　　　　　
    Do Kim Thoa; Nguyen Thao Ly; Tao Khanh Linh; Tran Thuy Trang; Nguyen Thi; Hoang Ha; Nguyen Thanh Hien; Luu Viet Dung; Dang Van Dong; Mai Trong Nhuan; Bui Thi Hoa; Kotera Akihiko; Ishikawa-Ishiwata Yuki
    The 1st International Conference on Innovation and Sustainability (ICIS2025): Environment and Climate Resilient Development in the Era of Artificial Intelligence. Vietnam Japan University, Hanoi, Vietnam, 12 Oct. 2025
  • Capacity development for climate change at Ibaraki University: Challenges in advancing integrated climate change science in the ASEAN region　　　　　　　　　　　　　　　
    Makoto Tamura; Akihiko Kotera
    The 1st International Conference on Innovation and Sustainability (ICIS2025): Environment and Climate Resilient Development in the Era of Artificial Intelligence. Vietnam Japan University, Hanoi, Vietnam, 12 Oct. 2025
  • Tropospheric ozone concentrations over northern Vietnam and their influence on rice yields as well as the climate　　　　　　　　　　　　　　　
    Kita Kazuyuki; Luong Huu Dung; Do Duy Tung; Kotera Akihiko
    The 1st International Conference on Innovation and Sustainability (ICIS2025): Environment and Climate Resilient Development in the Era of Artificial Intelligence. Vietnam Japan University, Hanoi, Vietnam, 12 Oct. 2025
  • Establishing a campus-based meteorological at Hoa Lac campus: preliminary assessment of heat stress patterns　　　　　　　　　　　　　　　
    Akihiko Kotera; Nguyen Thi; Hoang Ha; Hoang Thi Thu Duyen; Nguyen Thi Thuy Hang; Keiko Mizunaga; Yuki Ishikawa; Makoto Tamura; Tetsuji Ito; Kazuyuki Kita
    The 1st International Conference on Innovation and Sustainability (ICIS2025): Environment and Climate Resilient Development in the Era of Artificial Intelligence. Vietnam Japan University, Hanoi, Vietnam, 12 Oct. 2025
  • 「気候変動時代に農家の健康を守る～茨城大学のサステイナビリティ学と誰一人取り残さない地域適応戦略～」　　　　　　　　　　　　　　　
    小寺昭彦
    第１７回 三大学交流セミナー 主催： 茨城県立医療大学・茨城大学農学部・東京医科大学茨城医療センター, 29 Sep. 2025
  • 地域特産物への影響と適応策 ー奥久慈りんごと大子漆ー　　　　　　　　　　　　　　　
    小寺昭彦
    2024年度 茨城県地域気候変動適応センターシンポジウム, 28 Feb. 2025
  • 気候変動の緩和・適応政策の立案と評価におけるフューチャー・デザインの効果-茨城県水戸市での討議実践を例に-　　　　　　　　　　　　　　　
    廣田和真; 渕上ゆかり; 小寺昭彦; 田村誠; 原圭史郎
    エコデザイン・プロダクツ&サービス 2024シンポジウム(EcoDePS2024), 30 Nov. 2024, エコデザイン学会連合
  • 茨城県大子町における気候変動影響と適応策：2023年度奥久慈りんご・大子漆農家アンケート調査　　　　　　　　　　　　　　　
    田村誠; 小寺昭彦; 今井葉子
    第32回地球環境シンポジウム, 26 Sep. 2024
  • Climate Change and Disaster Risk Reduction in Urban and Coastal Areas, case studies of the Vietnamese Mekong Delta　　　　　　　　　　　　　　　
    Nguyen Thi Thuy Hang; Nguyen Van Quang; Kotera, Akihiko
    International Meeting on Land Cover/Land Use Change (LCLUC) in South/Southeast Asia and Synthesis. Hanoi, Vietnam, 01 Feb. 2024
    20240201, 20240201
  • The Power of Dialogical Tools in Participatory Learning
    KOTERA Akihiko
    Beyond Interlocal Lessons Learnt on Climate Change: Mapping, Fertilizing and Social Permeating, 17 Sep. 2021
    20210916, 20210917
  • Building Climate Security Index for Sustainable Development Strategies in the Coastal Area in Phan Thiet City, Vietnam
    NGUYEN Thi Que; DOI Thi Loan*; NGUYEN Van Quang; NGUYEN Thi Thuy Hang; KOTERA Akihiko
    Beyond Interlocal Lessons Learnt on Climate Change: Mapping, Fertilizing and Social Permeating, 16 Sep. 2021
    20210916, 20210917
  • Image Processing for Creating Noiseless Global Time-Series Satellite Remote-Sensing Image Product and Its Practical Application　　　　　　　　　　　　　　　
    The International Workshop on High Performance Computing (HPC) System and Applications, Nov. 2019
  • ベトナム・メコンデルタの広域水環境と水稲生産の脆弱性　　　　　　　　　　　　　　　
    KOTERA AKIHIKO
    農業環境工学関連学会2009年合同大会オーガナイズドセッション, 2009
  • ベトナム・メコンデルタにおける水稲作付暦の広域推定と水資源環境の変動による影響　　　　　　　　　　　　　　　
    KOTERA AKIHIKO
    日本熱帯農業学会第105回講演会, 2009
  • ベトナム・メコンデルタの塩水遡上による水稲生産の脆弱性　　　　　　　　　　　　　　　
    KOTERA AKIHIKO
    日本熱帯農業学会第103回講演会, 2008
  • ベトナム・メコンデルタにおける塩水遡上が水稲生産に及ぼしている影響　　　　　　　　　　　　　　　
    KOTERA AKIHIKO
    日本熱帯農業学会第101回講演会, 2007
  • Salinity intrusion affecting rice production in the coastal area of the Mekong Delta　　　　　　　　　　　　　　　
    KOTERA AKIHIKO
    CLRRI-IRRI International Conference, CuuLong Delta Rice Research Institute, at Can Tho, Vietnam (Better Rice, Better Environment and Better Life), 2007
  • ベトナム紅河デルタにおける水稲栽培時期の空間的把握　　　　　　　　　　　　　　　
    KOTERA AKIHIKO
    日本熱帯農業学会第99回講演会, 2006
  • Detecting spatial pattern of rice cropping schedules using time-series satellite images in the Red River Delta, Vietnam　　　　　　　　　　　　　　　
    KOTERA AKIHIKO
    International Symposium on Geoinformatics for Spatial Infrastructure Development in Earth and Allied Sciences 2006, at Ho Chi Minh City, Vietnam (GIS-IDEAS), 2006
  • ベトナム紅河デルタにおける高収量性水稲品種の導入と洪水被害　　　　　　　　　　　　　　　
    KOTERA AKIHIKO
    日本農業気象学会近畿支部大会, 2004
  • 移植の影響を考慮した水稲生育過程のモデル化　　　　　　　　　　　　　　　
    KOTERA AKIHIKO
    日本熱帯農業学会第91回講演会, 2001
  • ベトナム水稲の収量に冠水が及ぼす影響の品種間差異について　　　　　　　　　　　　　　　
    KOTERA AKIHIKO
    日本熱帯農業学会第89回講演会, 2000
  • 1999年ベトナム中部地方における水稲の洪水被害について　　　　　　　　　　　　　　　
    KOTERA AKIHIKO
    日本熱帯農業学会第89回講演会, 2000
  • ベトナム水稲の収量に冠水が及ぼす影響　　　　　　　　　　　　　　　
    KOTERA AKIHIKO
    日本熱帯農業学会第87回講演会, 1999
  • 収量推定モデルを用いたベトナム紅河デルタ地域の水稲生育環境の評価　　　　　　　　　　　　　　　
    KOTERA AKIHIKO
    日本熱帯農業学会第84回講演会, 1997

Affiliated academic society

  • May 2026 - Present, 日本公衆衛生学会
  • 2010 - Present, 農業農村工学会
  • 2014 - 2026, 日本リモートセンシング学会

Research Themes

Social Contribution Activities

  • 農業分野の気候変動影響と災害　　　　　　　　　　　　　　
    lecturer
    茨城県県西生涯学習センター, 令和7年度 現代的課題対策講座「自然災害のミステリーを解明！防災の達人になろう」第4回, 17 Jul. 2025
  • 水戸市市民講座三の丸カレッジ「気候変動対策と生物多様性の保全」　　　　　　　　　　　　　　
    lecturer
    茨城県水戸生涯学習センター, 02 Nov. 2024 - 02 Nov. 2024

Academic Contribution Activities