Collaborative Research Contract (共同研究契約)
2025年10月-2027年3月: 気象庁・気象研究所・気象予報研究部第一研究室（橋本明弘）
「特別観測と気象予報モデルの連携による降水形成機構に関する研究」
2025年9月-2028年3月: 一般財団法人日本気象協会・技術戦略室（本間基寛）
「ＡＩを用いた天気予報およびデータ同化手法に関する研究」
2021年04月-2029年3月: 気象庁・気象研究所・気象観測研究部（岡本幸三・石田春磨）
「深層学習技術等を用いた衛星データ同化の高度化に関する研究」
2019年11月-2028年3月： 理化学研究所・計算科学研究センター・データ同化研究チーム（PI:
三好建正）
「全球大気モデル用いたデータ同化アルゴリズムと衛星観測データ同化手法の高度化」
Ongoing Projects (as Lead PI)
| Period | PI | Types of Programs | Title | Project Number /Grant Number |
|---|---|---|---|---|
| 2026/09–2027/02 | Shunji Kotsuki | MEXT SPReAD 1000 | From Weather Forecasting to Landscape Forecasting: Next-Generation AI Weather Prediction Based on Latent-Space Representations of Live-Camera Images | 26302553 |
| 2026/06–2029/03 | Shunji Kotsuki | JSPS Grants-in-Aid for Challenging Research (Exploratory) | Downscaling Global Climate Projections Using AI Weather Forecasting Models and Generative AI | 26K22504 |
| 2026/06–2028/03 | Atsushi Okazaki | JSPS Grants-in-Aid for Challenging Research (Exploratory) | TBD | 26K22503 |
| 2026/04–2029/03 | Wataru Kunimi | JSPS Grant-in-Aid for JSPS Fellows | Urban Microclimate Analysis and the Development of a Smart City Design Platform | 26KJ0685 |
| 2026/04–2029/03 | Daiko Kishikawa | JSPS Grant-in-Aid for Early-Career Scientists | Development of High-Accuracy, High-Efficiency, Ultra-Long-Term AI-Based Precipitation Forecasting Methods Using Deep Reinforcement Learning | 26K17469 |
| 2025/04–2030/03 | Shunji Kotsuki | JSPS Grants-in-Aid for Scientific Research Foundation (A) | Transforming Weather Prediction with Deep Learning and Quantum Computing | 25H00752 |
| 2025/04–2028/03 | Shunji Kotsuki | JAXA JAXA 4th Research Announcement | Development of Data-driven Global Satellite Mapping of Precipitation through Data Assimilation and Deep Learning | ER4GPF019 |
| 2025/04–2028/03 | Atsushi Okazaki | JSPS Grants-in-Aid for Scientific Research Foundation (B) | Exploring new isotope hydrology with next generation geostationary satellites | 25K01329 |
| 2025/04–2028/03 | Atsushi Okazaki | Environment Research and Technology Development Fund of the Ministry of the Environment, [Young Research] | TBD | 2RA-2501 |
| 2025/04–2029/03 | Yuka Muto | JSPS Grant-in-Aid for Early-Career Scientists | Development of a state-of-the-art integrated global precipitation product using data assimilation | 25K17687 |
| 2025/04–2027/03 | Fumitoshi Kawasaki | JSPS Grant-in-Aid for JSPS Fellows | Optimization of Mobile Observation Sites and Evaluation of Observation Impact for Improving Forecast Accuracy of Senjo-Kousuitai | 25KJ0729 |
| 2024/04–2027/03 | Daiya Shiojiri | JSPS Grant-in-Aid for Early-Career Scientists | Development and Popularization of a General-Purpose Land Data Assimilation System: Addressing the Bottleneck of Insufficient Observations in Hydrology | 24K17351 |
| 2023/12–2027/03 | Shunji Kotsuki | JST MOONSHOT Research & Development Program (Core) | Artificial generation of upstream maritime heavy rains to govern intense-rain-induced disasters over land | PM-Kotsuki: JPMJMS2389 PI-Okazaki: JPMJMS2389-4-1 PI-Kotsuki: JPMJMS2389-4-2 |
| 2023/04–2026/03 | Ryo Kanako | JSPS Grant-in-Aid for Early-Career Scientists | Development of a Smartphone Rain Gauge - for Future Global Precipitation Observation Network - | 23K13407 |
| 2022/04–2028/03 | Shunji Kotsuki | Chiba University International Advanced Academic Research Support Program (Top Leader) | Exploring Frontiers in Global Environment and Disaster Predictions Through Integration of Big Satellite Observations and Data Science | - |
Ongoing Projects (Kotsuki: as Co-PI)
| Period | PI | Types of Programs | Title | Project Number /Grant Number |
|---|---|---|---|---|
| 2026/08–2028/03 | H. Ando (MTI Co., Ltd.) | JST K Program | TBD | JPMJKP25Q1 |
| 2026/06–2028/03 | A. Okazaki (Chiba U.) | JSPS Grants-in-Aid for Challenging Research (Exploratory) | TBD | 26K22503 |
| 2025/04–2028/03 | T. Mitsui (Juntendo U.) | JSPS Grants-in-Aid for Scientific Research Foundation (C) | Development of a control algorithm for extreme weather events inspired by rare-event simulation techniques | 25K07942 |
Other Research Projects (Kotsuki)
| Period | PI | Types of Programs | Title | Project Number /Grant Number |
|---|---|---|---|---|
| 2025/04–2028/03 | T. Miyoshi (RIKEN) | JAXA JAXA 4th Research Announcement (RA4) | Advancement and AI integration of satellite data assimilation of clouds, precipitation and the ocean | - |
| 2023/04–2026/06 | T. Miyoshi (RIKEN) | RIKEN-MOST Collaborative Research | Comprehensive earthquake forecast model based on multi-geophysical data assimilation | - |
| 2022/04–2027/03 | K. Ichii (Chiba U.) | JSPS Core-to-Core Program | GEOLAND-NET (GEOstationary-satellite LAND monitoring NETwork) | JPJSCCA20220008 |
| 2022/04–2027/03 | N. Mori (Kyoto U.) | MEXT Advanced studies of climate change projection | TBD | - |
Ongoing Universities Projects
| Period | PI | Types of Programs | Title | Project Number /Grant Number |
|---|---|---|---|---|
| - | AORI, ISEE, CEReS, CAOS (U. of Tokyo, Nagoya U., Chiba U., Tohoku U.) | - | Virtual Laboratory (VL) | - |
Acknowledgements (examples)
- Kakenhi (DC, PD): the JSPS Grants in Aid for Scientific Research (JP21J11113)
- Kakenhi: JSPS Kakenhi Grants (JP21H04571)
- Moonshot: JST Moonshot R&D (JPMJMS2389)
- JAXA: the Japan Aerospace Exploration Agency (JAXA) Precipitation Measuring Mission (PMM)
- JPJS Core: This study was suported by JSPS Core-to-Core Program (JPJSCCA20220008).
- IAAR: IAAR Research Support Program of Chiba University
- VL: VL Program of Chiba University
Finished Projects (as Lead PI)
| Period | PI | Types of Programs | Title | Project Number /Grant Number |
|---|---|---|---|---|
| 2024/07–2026/03 | Kenta Kurosawa | JSPS Grant-in-Aid for Research Activity Start-up | TBD | 24K22969 |
| 2023/04–2026/03 | Atsushi Okazaki | JSPS Grants-in-Aid for Transformative Research Areas Foundation (A) (Publicly Offered Research) | Ultra-high spatiotemporal resolution climate reconstruction: Toward development of historical meteorology | 24H00920 |
| 2022/06–2026/03 | Shunji Kotsuki | JSPS Grants-in-Aid for Challenging Research (Exploratory) | Exploring Cost-effective Observation Placements Using The Data-driven Sparse Sensor Placement | 22K18821 |
| 2022/06–2026/03 | Shunji Kotsuki | JSPS Grants-in-Aid for Challenging Research (Exploratory) | Exploring Cost-effective Observation Placements Using The Data-driven Sparse Sensor Placement | 22K18821 |
| 2023/06–2025/03 | Shunji Kotsuki | RTRI Collaborative Research | Development of Evaluation Methods for the Spatial Representativeness of Ground Weather Observations | - |
| 2023/04–2025/03 | Atsushi Okazaki | MLIT 河川砂防技術研究開発 | Basin-scale impact-based risk assessment of the climate change | - |
| 2022/04–2025/03 | Shunji Kotsuki | JAXA JAXA Third Research Announcement | Advancing GSMaP Precipitation by Land Data Assimilation and Data Science | ER3GPF016 |
| 2022/04–2025/03 | Atsushi Okazaki | JSPS Grant-in-Aid for Early-Career Scientists | Development of Stable Water Isotopes Dataset for Atmospheric Science by Fusing Model Simulations and Observations | 22K14095 |
| 2021/04–2025/03 | Shunji Kotsuki | JSPS Grants-in-Aid for Scientific Research Foundation (A) | Exploring Real-time Rainfall and Flood Predictions in Fugaku Era with the State-of-the-art Data Science | 21H04571 |
| 2022/01–2024/12 | Daiya Shiojiri | JSPS Grant-in-Aid for JSPS Fellows Foundation | Runoff generation process by terrestrial water circulation model combined with assimilation of hydrological observation data | 22KJ0457 |
| 2022/06–2024/03 | Shunji Kotsuki | JSPS Grants-in-Aid for Transformative Research Areas Foundation (A) (Publicly Offered Research) | Investigating Flood Risk Impacts on Local Community Developments through Numerical Simulations and Area Studies | 22H05230 |
| 2023/03–2024/03 | Ryo Kanako | JSPS Grant-in-Aid for JSPS Fellows Foundation | Development of a new precipitation forecasting model using a large-scale dataset | 22KJ0533 |
| 2023/04–2023/12 | Shunji Kotsuki | JST FOREST | Foreseeing Unprecedented Flood Disasters through Integration of Simulation Science and Folklore | JPMJFR215J |
| 2022/04–2023/11 | Shunji Kotsuki | JST MOONSHOT Research & Development Program (feasibility) | Quantifying Weather Controllability and Mitigatable Flood Damage Based on Ensemble Weather Forecast | JPMJMS2284 |
| 2021/04–2023/03 | Yuka Muto | JSPS Grant-in-Aid for JSPS Fellows Foundation | The Change in Flow and Sediment Regimes: The Integrated Effect of Forest Management and Geographical Characteristics of River Basins | 21J11113 |
| 2019/10–2023/03 | Shunji Kotsuki | JST PRESTO | Advancing Data Assimilation and Prediction Methods to Maximize "The Value of Observations" | MJPR1924 |
| 2021/04–2022/03 | Jun Hu | ERAN FY2021 ERAN Collaborative Research for Young Scientists | Quantify the fire trends and resuspension radionuclides using remote sensing data for radioactively contaminated forests in Ukraine | Y-21-04 |
| 2020/04–2021/03 | Shunji Kotsuki | ERAN FY2020 ERAN Collaborative Research for Young Scientists | Implementing Radioactive Transport/Diffusion Modules into an Integrated Hydrological Model for Long-term Projections | Y-20-07 |
| 2018/04–2020/03 | Shunji Kotsuki | JSPS Grants-in-Aid for Scientific Research Foundation (B) | Land-Atmosphere-Coupled Data Assimilation: Improving Atmospheric and Hydrological Predictions by Hydrological Big Data Assimilation | 18H01549 |
Finished Projects (Kotsuki: as Co-PI)
| Period | PI | Types of Programs | Title | Project Number /Grant Number |
|---|---|---|---|---|
| 2022/06–2026/03 | K. Ichii (Chiba U.) | JSPS Grants-in-Aid for Challenging Research (Exploratory) | TBD | 22K19842 |
| 2021/07–2026/03 | T. Oki (U. of Tokyo) | JSPS Grants-in-Aid for Scientific Research Foundation (S) | Study on global terrestrial hydrodynamics with satellite earth observations | 21H05002 |
| 2022/04–2025/03 | T. Miyoshi (RIKEN) | JAXA JAXA Third Research Announcement (RA3) | Advances and applications of satellite data assimilation of clouds, precipitation, and the ocean | - |
| 2021/07–2025/03 | H. Tsukada (Chubu U.) | JST JST-Mirai Program | TBD | - |
| 2021/04–2024/03 | K. Ichii (Chiba U.) | Environment Research and Technology Development Fund of the Ministry of the Environment, [Strategic Research] | TBD | JPMEERF21S20807 |
| 2021/04–2024/03 | Y. Igarashi (Fukushima U.) | Environment Research and Technology Development Fund of the Ministry of the Environment, [Young Research] | Prediction System for Radionuclides Redistribution due to Wild Fire in Contaminated Regions | JPMEERF20211R03 (1RF-2103) |
| 2020/04–2023/03 | M. Satoh (U. of Tokyo) | Program for Promoting Researches on the Supercomputer Fugaku | Large Ensemble Atmospheric and Environmental Prediction for Disaster Prevention and Mitigation | - |
| 2020/04–2023/03 | N. Tsumura (Chiba U.) | Global Prominent Research of Chiba University | Creation of Material Appearance and Affective Imaging | - |
| 2020/04–2022/03 | S. Watanabe (U. of Tokyo) | 令和2年度河川砂防技術研究開発公募 | TBD | - |
| 2019/04–2022/03 | T. Miyoshi (RIKEN) | JAXA PMM | Enhancing Precipitation Prediction Algorithm by Data Assimilation of GPM Observations | - |