Researcher Information
researchmap URL
Research Interests
Research History
- Feb. 2022 - Present
Japan Agency for Marine-Earth Science and Technology, 地球情報科学技術センター, 特任研究員 - Oct. 2017 - Jan. 2022
一般財団法人気象業務支援センター, 研究推進部, 特任研究員 - Apr. 2016 - Sep. 2017
National Research Institute for Earth Science and Disaster Prevention, 特任研究員 - Oct. 2014 - Mar. 2016
Kyoto University, Disaster Prevention Research Institute Division of Atmospheric and Hydrospheric Disasters, Program-Specific Researcher - Aug. 2013 - Mar. 2014
University of Reading, Visiting student - Jun. 2013 - Jul. 2013
King's College London, Visiting student - Apr. 2011 - Mar. 2013
Japan Society for the Promotion of Science, 特別研究員DC2
Education
- Apr. 2010 - Sep. 2014, Kyoto University, Graduate School of Science, Division of Earth and Planetary Science
- Apr. 2008 - Mar. 2010, Doshisha University, Graduate School of Engineering, Science of Environment and Mathematical Modeling
- Apr. 2004 - Mar. 2008, Doshisha University, Faculty of Engineering, Department of Environmental Systems Science
Research activity information
Papers
- Nakajima, K.; Y. Imada; R. Ito; K. Oka
Future thermal environment in Japan using large ensemble climate dataset d4PDF - can we hold outdoor activities at global 4°C warming?
Environmental Research: Climate, Apr. 2026
[Reviewed] - Daisuke Matsuoka; Shintaro Kawahara; Koshiro Murakami; Ryo Matsumoto; Rui Ito; Shiori Sugimoto; Daisuke Sugiyama; Masayuki Hara; Masaaki Hayashida; Kien Nguyen; Aurelie Peng; Taishi Abe; Issei Sugiyama
A Climatology-specific Large Language Model using Ensemble Projection Data toward Regional Climate Services
ESS open archive, 12 Nov. 2025 - Satoru Okajima; Yu Kosaka; Takafumi Miyasaka; Rui Ito
Unprecedented Marine Heatwave Significantly Exacerbated the Record-breaking 2023 East Asian Summer Heatwave
AGU Advances, 05 Sep. 2025
[Reviewed] - Rui Ito; Hirokazu Endo; Tomoaki Ose; Tosiyuki Nakaegawa
Future atmospheric surface circulations and their impact on the regional climate of Japan based on the CMIP6 projections and observed statistics
Hydrological Research Letters, Jan. 2025
19, 1, 1, 7
[Reviewed]
Lead - Gaby S. Langendijk; Tomas Halenka; Peter Hoffmann; Marianna Adinolfi; Aitor Aldama Campino; Olivier Asselin; Sophie Bastin; Benjamin Bechtel; Michal Belda; Angelina Bushenkova; Angelo Campanale; Kwok Pan Chun; Katiana Constantinidou; Erika Coppola; Matthias Demuzere; Quang-Van Doan; Jason Evans; Hendrik Feldmann; Jesus Fernandez; Lluís Fita; Panos Hadjinicolaou; Rafiq Hamdi; Marie Hundhausen; David Grawe; Frederico Johannsen; Josipa Milovac; Eleni Katragkou; Nour El Islam Kerroumi; Sven Kotlarski; Benjamin Le Roy; Aude Lemonsu; Christopher Lennard; Mathew Lipson; Shailendra Mandal; Luís E. Muñoz Pabón; Vassileios Pavlidis; Joni-Pekka Pietikäinen; Mario Raffa; Eloisa Raluy-López; Diana Rechid; Rui Ito; Jan-Peter Schulz; Pedro M.M. Soares; Yuya Takane; Claas Teichmann; Marcus Thatcher; Sara Top; Bert Van Schaeybroeck; Fuxing Wang; Jiacan Yuan
Towards better understanding the urban environment and its interactions with regional climate change - The WCRP CORDEX Flagship Pilot Study URB-RCC
Urban Climate, Nov. 2024
58, 102165, 102165
[Reviewed] - Shiori Sugimoto; Sachiho A. Adachi; Rui Ito; Chieko Suzuki
Future Changes in Synoptic-Scale Conditions Causing Widespread Heavy Precipitation Events over Japan
SOLA, 2024
[Reviewed] - Rui Ito; Yukiko Imada; Hiroaki Kawase
Regional Characteristics of Attribution Risk on the Record-High-Temperature Event of 2022 Rainy Season in Japan
Bulletin of the American Meteorological Society, Nov. 2023
104, 11, E2121, E2126
[Reviewed]
Lead - H. Kawase; M. Nosaka; S. I. Watanabe; K. Yamamoto; T. Shimura; Y. Naka; Y.‐H. Wu; H. Okachi; T. Hoshino; R. Ito; S. Sugimoto; C. Suzuki; S. Fukui; T. Takemi; Y. Ishikawa; N. Mori; E. Nakakita; T. J. Yamada; A. Murata; T. Nakaegawa; I. Takayabu
Identifying Robust Changes of Extreme Precipitation in Japan From Large Ensemble 5‐km‐Grid Regional Experiments for 4K Warming Scenario
Journal of Geophysical Research: Atmospheres, 27 Sep. 2023
[Reviewed] - Rui Ito; Chieko Suzuki; Shiori Sugimoto
Variability of Future Increases in Summertime Extreme High Temperatures on the Kanto Plain, Japan
SOLA, 2023
19, 194, 201
[Reviewed]
Lead - Rui Ito; Hiroaki Kawase; Yukiko Imada
Regional Differences in Summertime Extremely High Temperature in Japan due to Global Warming
Journal of Applied Meteorology and Climatology, Oct. 2022
[Reviewed]
Lead - Hiroaki Kawase; Akihiko Murata; Ken Yamada; Tosiyuki Nakaegawa; Rui Ito; Ryo Mizuta; Masaya Nosaka; Shunichi Watanabe; Hidetaka Sasaki
Regional Characteristics of Future Changes in Snowfall in Japan under RCP2.6 and RCP8.5 Scenarios
SOLA, 2021
17, 1, 7
[Reviewed] - Hideo Shiogama; Noriko N. Ishizaki; Naota Hanasaki; Kiyoshi Takahashi; Seita Emori; Rui Ito; Toshiyuki Nakaegawa; Izuru Takayabu; Yasuaki Hijioka; Yukari N. Takayabu; Ryosuke Shibuya
Selecting CMIP6-Based Future Climate Scenarios for Impact and Adaptation Studies
SOLA, 2021
17, 57, 62
[Reviewed] - Rui Ito; Tosiyuki Nakaegawa; Izuru Takayabu
Comparison of regional characteristics of land precipitation climatology projected by an MRI-AGCM multi-cumulus scheme and multi-SST ensemble with CMIP5 multi-model ensemble projections
Progress in Earth and Planetary Science, Dec. 2020
[Reviewed]
Lead - Rui Ito; Tomoaki Ose; Hirokazu Endo; Ryo Mizuta; Kohei Yoshida; Akio Kitoh; Tosiyuki Nakaegawa
Seasonal characteristics of future climate change over Japan and the associated atmospheric circulation anomalies in global model experiments
Hydrological Research Letters, 16 Oct. 2020
14, 4, 130, 135
[Reviewed]
Lead - Hiroaki Kawase; Takeshi Yamazaki; Shiori Sugimoto; Takahiro Sasai; Rui Ito; Takashi Hamada; Masatoshi Kuribayashi; Mikiko Fujita; Akihiko Murata; Masaya Nosaka; Hidetaka Sasaki
Changes in extremely heavy and light snow-cover winters due to global warming over high mountainous areas in central Japan
Progress in Earth and Planetary Science, 11 Mar. 2020
7, 1
[Reviewed] - Rui Ito; Hideo Shiogama; Tosiyuki Nakaegawa; Izuru Takayabu
Uncertainties in climate change projections covered by the ISIMIP and CORDEX model subsets from CMIP5
Geoscientific Model Development, 04 Mar. 2020
13, 3, 859, 872
[Reviewed]
Lead - Tetsuya Takemi; Rui Ito
Benefits of high-resolution downscaling experiments for assessing strong wind hazard at local scales in complex terrain: a case study of Typhoon Songda (2004)
Progress in Earth and Planetary Science, 09 Jan. 2020
7, 1
[Reviewed] - Hideo Shiogama; Rui Ito; Yukiko Imada; Toshiyuki Nakaegawa; Nagio Hirota; Noriko N. Ishizaki; Kiyoshi Takahashi; Izuru Takayabu; Seita Emori
Selecting Future Climate Projections of Surface Solar Radiation in Japan
SOLA, 2020
16, 75, 79
[Reviewed] - Junko Morimoto; Kosuke Nakagawa; Kohei T Takano; Masahiro Aiba; Michio Oguro; Yasuto Furukawa; Yoshio Mishima; Kenta Ogawa; Rui Ito; Tetsuya Takemi; Futoshi Nakamura; Chris J Peterson
Comparison of vulnerability to catastrophic wind between Abies plantation forests and natural mixed forests in northern Japan
Forestry: An International Journal of Forest Research, 11 Jan. 2019
92, 4, 436, 443
[Reviewed] - Yasuyuki MARUYA, Morihiro HARADA, Rui ITO, Hiroaki KAWASE, Koji DAIRAKU, Hidetaka SASAKI
UNCERTAINTY OF REGIONAL CLIMATE MODEL AND IMPACT ASSESSMENT MODEL TOWARD CLIMATE CHANGE IMPACT ASSESSMENT
Journal of Japan Society of Civil Engineers, Ser. B1(Hydraulic Engineering), Nov. 2018
74, 5, I_109, I_114
[Reviewed] - Morihiro HARADA; Yasuyuki MARUYA; Rui ITO; Noriko N. ISHIZAKI; Hiroaki KAWASE; Koji DAIRAKU; Hidetaka SASAKI
INFLUENCE OF TERRAIN MODEL IN 5KM DYNAMICAL DOWNSCALING OF JRA-55 ON FLOOD RUNOFF ANALYSIS
Journal of Japan Society of Civil Engineers, Ser. B1(Hydraulic Engineering), Nov. 2018
74, 5, I_103, I_108
[Reviewed] - Yasuyuki MARUYA; Morihiro HARADA; Rui ITO; Hiroaki KAWASE; Koji DAIRAKU; Hidetaka SASAKI
INFLUENCES OF SPATIAL RESOLUTION OF RAINFALL DISTRIBUTION ON RUNOFF ANALYSIS TOWARD CLIMATE CHANGE IMPACT ASSESSMENT
Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research), Sep. 2018
74, 5, 147, 156
[Reviewed] - Rui ITO; Toshinori AOYAGI; Naoto HORI; Mitsuo OH'IZUMI; Hiroaki KAWASE; Koji DAIRAKU; Naoko SEINO; Hidetaka SASAKI
Improvement of Snow Depth Reproduction in Japanese Urban Areas by the Inclusion of a Snowpack Scheme in the SPUC Model
Journal of the Meteorological Society of Japan. Ser. II, 2018
96, 6, 511, 534
[Reviewed]
Lead - Shiori Sugimoto; Rui Ito; Koji Dairaku; Hiroaki Kawase; Hidetaka Sasaki; Shingo Watanabe; Yasuko Okada; Sho Kawazoe; Takeshi Yamazaki; Takahiro Sasai
Impact of Spatial Resolution on Simulated Consecutive Dry Days and Near-Surface Temperature over the Central Mountains in Japan
SOLA, 2018
14, 46, 51
[Reviewed] - Hiroaki KAWASE; Takahiro SASAI; Takeshi YAMAZAKI; Rui ITO; Koji DAIRAKU; Shiori SUGIMOTO; Hidetaka SASAKI; Akihiko MURATA; Masaya NOSAKA
Characteristics of Synoptic Conditions for Heavy Snowfall in Western to Northeastern Japan Analyzed by the 5-km Regional Climate Ensemble Experiments
Journal of the Meteorological Society of Japan. Ser. II, 2018
96, 2, 161, 178
[Reviewed] - Kohei T. Takano; Kosuke Nakagawa; Masahiro Aiba; Michio Oguro; Junko Morimoto; Yasuto Furukawa; Yoshio Mishima; Kenta Ogawa; Rui Ito; Tetsuya Takemi
Projection of impacts of climate change on windthrows and evaluation of potential adaptation measures in forest management: A case study from empirical modelling of windthrows in Hokkaido, Japan, by Typhoon Songda (2004)
Hydrological Research Letters, 2016
10, 4, 132, 138
[Reviewed] - Tetsuya Takemi; Yasuko Okada; Rui Ito; Hirohiko Ishikawa; Eiichi Nakakita
Assessing the impacts of global warming on meteorological hazards and risks in Japan: Philosophy and achievements of the SOUSEI program
Hydrological Research Letters, 2016
10, 4, 119, 125
[Reviewed] - Tetsuya Takemi; Rui Ito; Osamu Arakawa
Robustness and uncertainty of projected changes in the impacts of Typhoon Vera (1959) under global warming
Hydrological Research Letters, 2016
10, 3, 88, 94
[Reviewed] - Tetsuya Takemi; Rui Ito; Osamu Arakawa
Effects of global warming on the impacts of Typhoon Mireille (1991) in the Kyushu and Tohoku regions
Hydrological Research Letters, 2016
10, 3, 81, 87
[Reviewed] - Rui Ito; Tetsuya Takemi; Osamu Arakawa
A Possible Reduction in the Severity of Typhoon Wind in the Northern Part of Japan under Global Warming: A Case Study
SOLA, 2016
12, 100, 105
[Reviewed]
Lead - ITO Rui; SATOMURA Takehiko; TAKEMI Tetsuya
Comparison of Temperature Increases with Urban Surface Cover for Different Geographical Conditions in Japan
Geographical review of Japan series B, 2014
87, 1, 65, 73
[Reviewed]
Lead - Rui Ito; Shozo Yamane; Takehiko Satomura
Effects of Land Reclamations in Osaka Bay on the Regional Climate
SOLA, 2012
8, 29, 32
[Reviewed]
Lead - ITO Rui; MASUDA Keiko; MASUDA Fujio
近畿地方の都市化による温暖化
Journal of Environmental Conservation Engineering, 2008
37, 6, 428, 433
[Reviewed]
Lead
Misc.
- Gaby S. Langendijk; Tomas Halenka; Peter Hoffmann; Marianna Adinolfi; Aitor Aldama Campino; Olivier Asselin; Sophie Bastin; Benjamin Bechtel; Michal Belda; Angelina Bushenkova; Angelo Campanale; Kwok Pan Chun; Katiana Constantinidou; Erika Coppola; Matthias Demuzere; Quang-Van Doan; Jason P. Evans; Hendrik Feldmann; Jesus Fernandez; Lluís Fita; Panos Hadjinicolaou; Rafiq Hamdi; Marie Hundhausen; David Grawe; Frederico Johannsen; Josipa Milovac; Eleni Katragkou; Nour El Islam Kerroumi; Sven Kotlarski; Benjamin Guillaume Le Roy; Aude Lemonsu; Christopher Lennard; Mathew Lipson; Shailendra Mandal; Luís E. Muñoz Pabón; Vassileios Pavlidis; Joni-Pekka Pietikäinen; Mario Raffa; Eloisa Raluy-López; Diana Rechid; Ito Rui; Jan-Peter Schulz; Pedro M. M. Soares; Yuya Takane; Claas Teichmann; Marcus Thatcher; Sara Top; Bert Van Schaeybroeck; Fuxing Wang; Jiacan Yuan
Towards Better Understanding the Urban Environment and its Interactions with Regional Climate Change -The Wcrp Cordex Flagship Pilot Study Urb-Rcc
28 May 2024 - Morimoto Junko; Ogawa Kenta; Ito Rui; Sasai Takahiro; Takemi Tetsuya; Shibata Hideaki; Takano Kohei; Nakagawa Kosuke; Furukawa Flavio; Aiba Masahiro; Yoshimura Nobuhiko; Oguro Michio; Furukara Yasuto; Mishima Yoshio
Forest planning based on the risk assessment of windthrow of plantation under the current climate
The Japanese Forest Society Congress, 2019
130, 0, 697, 697
Presentations
- Okajima, S.; Y Kosaka; T Miyasaka; R. Ito
Unprecedented Marine Heatwave Significantly Exacerbated the Record-breaking 2023 East Asian Summer Heatwave
Ocean Sciences Meeting - 中島虹; 今田由紀子; 伊東瑠衣; 髙根雄也; 山口和貴
電力ビッグデータとd4PDFを用いた将来電力需要量の予測
日本地理学会 - Okajima, S.; Y Kosaka; T Miyasaka; R. Ito
Marine heatwave significantly exacerbates the record-breaking 2023 East Asian summer heatwave
Busan IAMAS-IACS-IAPSO Joint Assembly - Ito, R.; Y. Imada
Multi-scale and large ensemble perspectives on extreme heat stress in Japanese urban areas under global warming.
12th ICUC, 2025
Media Coverage
- 灼熱都市を救え！温暖化対策 最前線
埼玉新聞, 04 Jan. 2026, Paper - 温暖化顕著 加熱する都市部
新潟日報, 04 Jan. 2026, Paper - 都市の灼熱化防げ 温暖化対策最前線
高知新聞, 03 Jan. 2026, Paper - 暑さや豪雨 甚大な影響
千葉日報, 03 Jan. 2026, Paper - 暑さや豪雨 甚大な影響
琉球新報, 01 Jan. 2026, Paper - 灼熱都市を救え！温暖化対策最前線
山陽新聞, 01 Jan. 2026, Paper - 灼熱都市を救え—温暖化対策 最前線
静岡新聞, 01 Jan. 2026, Paper - 都市部の温暖化対策最前線
下野新聞, 01 Jan. 2026, Paper - 温暖化対策最前線
秋田さきがけ, 01 Jan. 2026, Paper - 海洋熱波が2023年夏の東アジアの記録的熱波を増幅したメカニズムを解明
03 Sep. 2025, Internet
