Research Institute for Global Change (RIGC) Research Center for Environmental Modeling and Application (CEMA) Earth System Model Development and Application Group (ESM-DAG) Deputy Group Leader
Career
Resercher
Profile
Speciality
Terrestrial ecosystem, Biogeochemistry, Earth system modeling
Award
2022/09/18 日本気象学会 2022年度 堀内賞
Research Achievement
Peer reviewed publications (Belonging to JAMSTEC)
Ali Asaadi, Jörg Schwinger, Hanna Lee, Jerry Tjiputra, Vivek Arora, Roland Séférian, Spencer Liddicoat, Tomohiro Hajima, Yeray Santana-Falcón, and Chris D. Jones. Carbon cycle feedbacks in an idealized simulation and a scenario simulation of negative emissions in CMIP6 Earth system models. Biogeosciences, 2024, 21, p. 411-435, doi: 10.5194/bg-21-411-2024
Tammas F. Loughran, Tilo Ziehn, Rachel Law, Josep G. Canadell, Julia Pongratz, Spencer Liddicoat, Tomohiro Hajima, Akihiko Ito, David M. Lawrence, Vivek K. Arora. Limited Mitigation Potential of Forestation Under a High Emissions Scenario: Results From Multi-Model and Single Model Ensembles. JOURNAL OF GEOPHYSICAL RESEARCH - Biogeosciences, 2023, 128, doi: 10.1029/2023JG007605
K. Kusahara, H. Tatebe, T. Hajima, F. Saito, M. Kawamiya. Antarctic Sea Ice Holds the Fate of Antarctic Ice-Shelf Basal Melting in a Warming Climate. JOURNAL OF CLIMATE, 2023, 36, 3, p. 713-743, doi: 10.1175/JCLI-D-22-0079.1
Naveen Chandra, Prabir K. Patra, Yousuke Niwa, Akihiko Ito, Yosuke Iida, Daisuke Goto, Shinji Morimoto, Masayuki Kondo, Masayuki Takigawa, Tomohiro Hajima, Michio Watanabe. Estimated regional CO2 flux and uncertainty based on an ensemble of atmospheric CO2 inversions. ATMOSPHERIC CHEMISTRY AND PHYSICS, 2022, 22, 14, p. 9215-9243, doi: 10.5194/acp-22-9215-2022
Akitomo Yamamoto, Tomohiro Hajima, Dai Yamazaki, Maki Noguchi Aita, Akinori Ito, Michio Kawamiya. Competing and accelerating effects of anthropogenic nutrient inputs on climate-driven changes in ocean carbon and oxygen cycles. Science Advances, 2022, 8, 26, doi: 10.1126/sciadv.abl9207
Zheng Fu, Philippe Ciais, I. Colin Prentice, Pierre Gentine, David Makowski, Ana Bastos, Xiangzhong Luo, Julia K. Green, Paul C. Stoy, Hui Yang, Tomohiro Hajima. Atmospheric dryness reduces photosynthesis along a large range of soil water deficits. Nature Communications, 2022, 13, 989, doi: 10.1038/s41467-022-28652-7
Prabir Patra, Tomohiro Hajima, Ryu Saito, Naveen Chandra, Yukio Yoshida, Kazuhito Ichii, Michio Kawamiya, Masayuki Kondo, Akihiko Ito, David Crisp. Evaluation of earth system model and atmospheric inversion using total column CO2 observations from GOSAT and OCO-2. Progress in Earth and Planetary Science, 2021, 8, 25, doi: 10.1186/s40645-021-00420-z
Spencer Liddicoat, Andy Wiltshire, Chris Jones, Vivek Arora, Victor Brovkin, Patricia Cadule, Tomohiro Hajima, David Lawrence, Julia Pongratz, Jörg Schwinger, Roland Séférian, Jerry Tjiputra, Tilo Ziehn. Compatible Fossil Fuel CO2 Emissions in the CMIP6 Earth System Models’ Historical and Shared Socioeconomic Pathway Experiments of the Twenty-First Century. JOURNAL OF CLIMATE, 2021, 34, 8, p. 2853-2875, doi: 10.1175/JCLI-D-19-0991.1
Ohgaito R., Yamamoto A., Hajima T., Oishi R., Abe M., Tatebe H., Abe-Ouchi A., Kawamiya M.. PMIP4 experiments using MIROC-ES2L Earth System Model. Geoscientific Model Development, 2021, 14, p. 1195-1217, doi: 10.5194/gmd-14-1195-2021
Akihiko Ito, Tomohiro Hajima, David Lawrence, Victor Brovkin, Christine Delire, Bertrand Guenet, Chris Jones, Sergey Malyshev, Stefano Materia, Sonali McDermid, Daniele Peano, Julia Pongratz, Eddy Robertson, Elena Shevliakova, Nicolas Vuichard, David Wårlind, Andy Wiltshire, Tilo Ziehn. Soil Carbon Sequestration Simulated in CMIP6-LUMIP Models: Implications for Climatic Mitigation. Environmental Research Letters, 2020, 15, 12, doi: 10.1088/1748-9326/abc912
Lena Boysen, Victor Brovkin, Julia Pongratz, David Lawrence, Peter Lawrence, Nicolas Vuichard, Philippe Peylin, Spencer Liddicoat, Tomohiro Hajima, Yanwu Zhang, Matthias Rocher, Christine Delire, Roland Séférian, Vivek Arora, Lars Nieradzik, Peter Anthoni, Wim Thiery, Marysa Laguë, Deborah Lawrence, Min-Hui Lo. Global Climate Response to Idealized Deforestation in CMIP6 Models. Biogeosciences, 2020, 17, 22, p. 5615-5638, doi: 10.5194/bg-17-5615-2020
Michio Watanabe, Hiroaki Tatebe, Hiroshi Koyama, Tomohiro Hajima, Masahiro Watanabe, Michio Kawamiya. Importance of El Niño reproducibility for reconstructing historical CO2 flux variations in the equatorial Pacific. Ocean Science, 2020, 16, 6, p. 1431-1442, doi: 10.5194/os-16-1431-2020
Tokuta Yokohata; Kazuyuki Saito; Kumiko Takata; Tomoko Nitta; Yusuke Satoh; Tomohiro Hajima; Tetsuo Sueyoshi; Go Iwahana. Model improvement and future projection of permafrost processes in a global land surface model. Progress in Earth and Planetary Science, 2020, 7, 69, p. 1-12, doi: 10.1186/s40645-020-00380-w
Michio Kawamiya, Tomohiro Hajima, Kaoru Tachiiri, Shingo Watanabe, Tokuta Yokohata. Two decades of Earth system modeling with an emphasis on Model for Interdisciplinary Research on Climate (MIROC). Progress in Earth and Planetary Science, 2020, 7, doi: 10.1186/s40645-020-00369-5
Tokuta Yokohata, Kazuyuki Saito, Akihiko Ito, Hiroshi Ohno, Katsumasa Tanaka, Tomohiro Hajima and Go Iwahana. Future projection of greenhouse gas emissions due to permafrost degradation using a simple numerical scheme with a global land surface model. Progress in Earth and Planetary Science, 2020, 7, doi: 10.1186/s40645-020-00366-8
Akihiko Ito, Tomohiro Hajima. Biogeophysical and Biogeochemical Impacts of Land-Use Change Simulated by MIROC-ES2L. Progress in Earth and Planetary Science, 2020, 7, 54, doi: 10.1186/s40645-020-00372-w
Tomohiro Hajima, Akitomo Yamamoto, Michio Kawamiya, Xuanming Su, Michio Watanabe, Rumi Ohgaito, Hiroaki Tatebe. Millennium Time-Scale Experiments on Climate-Carbon Cycle with Doubled CO2 Concentration. Progress in Earth and Planetary Science, 2020, 7, 40, doi: 10.1186/s40645-020-00350-2
Arora Vivek, Katavouta Anna, Williams Richard, Jones Chris, Brovkin Victor, Friedlingstein Pierre, Schwinger Jörg, Bopp Laurent, Boucher Olivier, Cadule Patricia, Chamberlain Matthew, Christian James, Delire Christine, Fisher Rosie, Hajima Tomohiro, Ilyina Tatiana, Joetzjer Emilie, Kawamiya Michio, Koven Charles, Krasting John, Law Rachel, Lawrence David, Lenton Andrew, Lindsay Keith, Pongratz Julia, Raddatz Thomas, Séférian Roland, Tachiiri Kaoru, Tjiputra Jerry, Wiltshire Andy, Wu Tongwen, Ziehn Tilo. Carbon–concentration and carbon–climate feedbacks in CMIP6 models and their comparison to CMIP5 models. Biogeosciences, 2020, 17, 16, p. 4173-4222, doi: 10.5194/bg-17-4173-2020
MacDougall Andrew, Frölicher Thomas, Jones Chris, Rogelj Joeri, Matthews Damon, Zickfeld Kirsten, Arora Vivek, Barrett Noah, Brovkin Victor, Burger Friedrich, Eby Micheal, Eliseev Alexey, Hajima Tomohiro, Holden Philip, Jeltsch-Thömmes Aurich, Koven Charles, Mengis Nadine, Menviel Laurie, Michou Martine, Mokhov Igor, Oka Akira, Schwinger Jörg, Séférian Roland, Shaffer Gary, Sokolov Andrei, Tachiiri Kaoru, Tjiputra Jerry, Wiltshire Andrew, Ziehn Tilo. Is there warming in the pipeline? A multi-model analysis of the Zero Emissions Commitment from CO2. Biogeosciences, 2020, 17, 11, p. 2987-3016, doi: 10.5194/bg-17-2987-2020
Tomohiro Hajima, Michio Watanabe, Akitomo Yamamoto, Hiroaki Tatebe, Maki A. Noguchi, Manabu Abe, Rumi Ohgaito, Akinori Ito, Dai Yamazaki, Hideki Okajima, Akihiko Ito, Kumiko Takata, Koji Ogochi, Shingo Watanabe, Michio Kawamiya. Development of the MIROC-ES2L Earth system model and the evaluation of biogeochemical processes and feedbacks. Geoscientific Model Development, 2020, 13, p. 2197-2244, doi: 10.5194/gmd-13-2197-2020
Tachiiri K., Hajima T., Kawamiya M.. Increase of the transient climate response to cumulative carbon emissions with decreasing CO2 concentration scenarios. Environmental Research Letters, 2019, 14, doi: 10.1088/1748-9326/ab57d3
Motoko Inatomi, Tomohiro Hajima, Akihiko Ito. Fraction of nitrous oxide production in nitrification and its effect on total soil emission: A meta-analysis and global-scale sensitivity analysis using a process-based model. PLoS One, 2019, 14, 7, doi: 10.1371/journal.pone.0219159
Akihiko Ito, Yasunori Tohjima, Takuya Saito, Taku Umezawa, Tomohiro Hajima, Ryuichi Hirata, Makoto Saito, Yukio Terao. Methane budget of East Asia, 1990-2015: A bottom-up evaluation. SCIENCE OF THE TOTAL ENVIRONMENT, 2019, 676, 1, p. 40-52, doi: 10.1016/j.scitotenv.2019.04.263
Rumi Ohgaito, Ayako Abe, Ryouta O'ishi, Toshihiko Takemura, Akinori Ito, Tomohiro Hajima, Shingo Watanabe, Michio Kawamiya. Effect of high dust amount on surface temperature during the Last Glacial Maximum: a modelling study using MIROC-ESM. Climate of the Past, 2018, 14, 11, p. 1565-1581, doi: 10.5194/cp-14-1565-2018
LONGHUI Li, YINGPING WANG, VIVEK K. ARORA, DEREK EAMUS, HAO SHI, JING LI, LEI CHENG, JAMES CLEVERLY, T. HAJIMA, DUOYING J, C. JONES, M. KAWAMIYA, WEIPING LI, J. TJIPUTRA, A. WILTSHIRE, LU ZHANG, and QIANG YU. Evaluating global land surface models in CMIP5: analysis of ecosystem water- and light-use efficiencies, and rainfall partitioning. JOURNAL OF CLIMATE, 2018, 31, 8, p. 2995-3008, doi: 10.1175/JCLI-D-16-0177.1
渡辺路生・野口真希・羽島知洋. 地球システムモデルに組み込む海洋生態系モデルの開発 -全球窒素・炭素循環の理解に向けて-. 海の研究, 2018, 27, 1, p. 31-41
Jianyang Xia, A. David McGuire, David Lawrence, Eleanor Burke, Guangsheng Chen, Xiaodong Chen, Christine Delire, Charles Koven, Andrew MacDougall, Shushi Peng, Annette Rinke, Kazuyuki Saito, Wenxin Zhang, Ramdane Alkama, Theodore J. Bohn, Philippe Ciais, Bertrand Decharme, Isabelle Gouttevin, Tomohiro Hajima, Daniel J. Hayes, Kun Huang, Duoying Ji, Gerhard Krinner, Dennis P. Lettenmaier, Paul A. Miller, John C. Moore, Benjamin Smith, Tetsuo Sueyoshi, Zheng Shi, Liming Yan, Junyi Liang, Lifen Jiang, Qian Zhang, Yiqi Luo. Terrestrial ecosystem model performance in simulating productivity and its vulnerability to climate change in the northern permafrost region. JOURNAL OF GEOPHYSICAL RESEARCH - Biogeosciences, 2017, 122, p. 430-446, doi: 10.1002/2016JG003384
WenliWang, Annette Rinke, John C. Moore, Duoying Ji, Xuefeng Cui, Shushi Peng, David M. Lawrence, A. David McGuire, Eleanor J. Burke, Xiaodong Chen, ertrand Decharme, Charles Koven, Andrew MacDougall, Kazuyuki Saito, Wenxin Zhang, Ramdane Alkama, Theodore J. Bohn, Philippe Ciais, Christine Delire, Isabelle Gouttevin, Tomohiro Hajima, Gerhard Krinner, Dennis P. Lettenmaier, Paul A. Miller, Benjamin Smith, Tetsuo Sueyoshi, and Artem B. Sherstiukov. Evaluation of air-soil temperature relationships simulated by land surface models during winter across the permafrost region. The Cryosphere, 2016, 10, p. 1721-1737, doi: 10.5194/tc-10-1721-2016
A. David McGuire, Charles Koven, David M. Lawrence, Joy S. Clein, Jiangyang Xia, Christian Beer, Eleanor Burke, Guangsheng Chen, Xiaodong Chen, Christine Delire, Elchin Jafarov, Andrew H. MacDougall, Sergey Marchenko, Dmitry Nicolsky, Shushi Peng, Annette Rinke, Kazuyuki Saito, Wenxin Zhang, Ramdane Alkama, Theodore J. Bohn, Philippe Ciais, Bertrand Decharme, Altug Ekici, Isabelle Gouttevin, Tomohiro Hajima, Daniel J. Hayes, Duoying Ji, Gerhard Krinner, Dennis P. Lettenmaier, Yiqi Luo, Paul A. Miller, John C. Moore, Vladimir Romanovsky, Christina Schaedel, Kevin Schaefer, Edward A.G. Schuur, Benjamin Smith, Tetsuo Sueyoshi, and Qianlai Zhuang. Variability in the sensitivity among model simulations of permafrost and carbon dynamics in the permafrost region between 1960 and 2009. Global Biogeochemical Cycles, 2016, 30, 7, p. 1015-1037, doi: 10.1002/2016GB005405.
S. Peng, P. Ciais, G. Krinner, T. Wang, I. Gouttevin, A. D. McGuire, D. Lawrence, E. Burke, X. Chen, B. Decharme, C. Koven, A. MacDougall, A. Rinke, Kazuyuki Saito, W. Zhang, R. Alkama, T. J. Bohn, C. Delire, Tomohiro Hajima, D. Ji, D. P. Lettenmaier, P. A. Miller, J. C. Moore, B. Smith, and Tetsuo Sueyoshi. Simulated high-latitude soil thermal dynamics during the past 4 decades. The Cryosphere, 2016, 10, p. 179-192, doi: doi:10.5194/tc-10-179-2016
Tetsuo Sueyoshi , Kazuyuki Saito , Shin Miyazaki, Junko Mori , Takeshi Ise , Hazuki Arakida, Rikie Suzuki , Atsushi Sato , Yoshihiro Iijima , H. Yabuki , Hiroki Ikawa , Takeshi Ohta , Ayumi Kotani , Tomohiro Hajima , Hisashi Sato , Takeshi Yamazaki , and Atsuko Sugimoto. The GRENE-TEA Model Intercomparison Project (GTMIP) stage 1 forcing dataset. Earth System Science Data, 2016, 8, p. 1-14, doi: doi:10.5194/essd-8-1-2016
Kaoru Tachiiri, Tomohiro Hajima, Michio Kawamiya. Increase of uncertainty in transient climate response to cumulative carbon emissions after stabilization of atmospheric CO2 concentration. Environmental Research Letters, 2015, 10, 12, doi: 10.1088/1748-9326/10/12/125018
S. Miyazaki, K. Saito, J. Mori, T. Yamazaki, T. Ise, H. Arakida, T. Hajima, Y. Iijima, H. Machiya, T. Sueyoshi, H. Yabuki, E. J. Burke, M. Hosaka, K. Ichii, H. Ikawa, A. Ito, A. Kotani, Y. Matsuura, M. Niwano, T. Nitta, R. Oishi, T. Ohta, H. Park, T. Sasai, A. Sato, H. Sato, A. Sugimoto, R. Suzuki, K. Tanaka, S. Yamaguchi, and K. Yoshimura. The GRENE-TEA Model Intercomparison Project (GTMIP): overview and experiment protocol for Stage 1. Geoscientific Model Development, 2015, 8, p. 2841-2856
Daisuke Nohara, J Tsutsui, S Watanabe, K Tachiiri, T Hajima, H Okajima and T Matsuno. Examination of a climate stabilization pathway via zero-emissions using Earth system models. Env. Res. Lett., 2015, 10, doi: doi:10.1088/1748-9326/10/9/095005
Tetsuo Sueyoshi , Kazuyuki Saito , Shin Miyazaki, Junko Mori , Takeshi Ise , Hazuki Arakida, Rikie Suzuki , Atsushi Sato , Yoshihiro Iijima , H. Yabuki , Hiroki Ikawa , Takeshi Ohta , Ayumi Kotani , Tomohiro Hajima , Hisashi Sato , Takeshi Yamazaki , and Atsuko Sugimoto. The GRENE-TEA Model Intercomparison Project (GTMIP) stage 1 forcing dataset. Earth System Science Data Discussion, 2015, 8, p. 703-736, doi: 10.5194/essdd-8-703-2015
Rawlins M. A., McGuire A. D., Kimball J. S., Dass P., Lawrence D., Burke E., Chen X., Delire C., Koven C., MacDougall A., Peng S., Rinke A., Saito Kazuyuki, Zhang W., Alkama R., Bohn T. J., Ciais P., Decharme B., Gouttevin I., Hajima T., Ji D., Krinner G., Lettenmaier D. P., Miller P. A., Moore J. C., Smith B., and Sueyoshi T.. Assessment of model estimates of land-atmosphere CO2 exchange across Northern Eurasia. Biogeosciences, 2015, 12, p. 4385-4405, doi: doi:10.5194/bg-12-4385-2015
Tomohiro Hajima. Evaluation of historical leaf area index change in the MIROC-ESM. Journal of The Remote Sensing Society of Japan, 2015, 35, 1, p. 24-30
Tomohiro Hajima, Michio Kawamiya, Michio Watanabe, Etsushi Kato, Kaoru Tachiiri, Masahiro Sugiyama, Shingo Watanabe, Hideki Okajima, Akinori Ito. Modeling in earth system science up to and beyond IPCC AR5. Progress in Earth and Planetary Science, 2014, 1, 1, p. 1-25, doi: doi:10.1186/s40645-014-0029-y
Tomohiro Hajima, Kaoru Tachiiri, Akihiko Ito, Michio Kawamiya. Uncertainty of Concentration - Terrestrial Carbon Feedback in Earth System Models. Journal of climate, 2014, 27, 9, p. 3425-3445
Todd-Brown Katherine(University of California) , Randerson James , Hopkins Francesca , Arora Vivek , 羽島 知洋(RIGC) , Jones Chris , Shevliakova Elena , Tjiputra Jerry , Volodin Evgeny , Wu Tongwen , Zhang Qian , Allison Steven. Changes in soil organic carbon storage predicted by Earth system models during the 21st century. Biogeosciences, 2014, 11, p. 2341-2356
Vivek K. Arora, George J. Boer, Pierre Friedlingstein, Michael Eby , Chris D. Jones, James R. Christian, Gordon Bonan, Laurent Bopp, Victor Brovkin, Patricia Cadule, Tomohiro Hajima, Tatiana Ilyina, Keith Lindsay, Jerry F. Tjiputra, Tongwen Wu. Carbon-concentration and carbon-climate feedbacks in CMIP5 Earth system models. Journal of Climate, 2013, 26, 15, p. 5289-5314
Ohgaito Rumi, Sueyoshi T., Abe-Ouchi A., Hajima T., Watanabe S., Kim H.-J., Yamamoto A, Kawamiya M. Can an Earth System Model simulate better climate change at mid-Holocene than an AOGCM? A comparison study of MIROC-ESM and MIROC3. Clim. Past, 2013, 9, p. 1519-1542, doi: 10.5194/cp-9-1519-2013
Chris Jones , Eddy Robertson, Vivek Arora, Pierre Friedlingstein, Elena Shevliakova, Laurent Bopp, Victor Brovkin, Tomohiro Hajima, Etsushi Kato, Michio Kawamiya, Spencer Liddicoat,Keith Lindsay, Christian H. Reick, Caroline Roelandt, Joachim Segschneider, Jerry Tjiputra. 21st Century compatible CO2 emissions and airborne fraction simulated by CMIP5 Earth System models under 4 Representative Concentration Pathways.. Journal of Climate, 2013, 26, 13, p. 4398-4413
Sueyoshi T., Ohgaito R. , Yamamoto A. , Chikamoto M. O. , Hajima T. , Okajima H. , Yoshimori M. , Abe M. , O'ishi R. , Saito F. , Watanabe S. , Kawamiya M. , Abe-Ouchi A.. Set-up of the PMIP3 paleoclimate experiments conducted using an Earth system model, MIROC-ESM. Geoscientific Model Development, 2013, 6, p. 819-8363, doi: 10.5194/gmd-6-819-2013
T. Sueyoshi, R. Ohgaito, A. Yamamoto, M. O. Chikamoto, T. Hajima, H. Okajima, M. Yoshimori, M. Abe, R. O’ishi, F. Saito, S. Watanabe, M. Kawamiya, and A. Abe-Ouchi. Setup of the PMIP3 paleoclimate experiments conducted using an Earth System Model, MIROC-ESM. Geoscientific Model Development, 2013, 6, p. 819-836, doi: 10.5194/gmd-6-819-2013
Tomohiro Hajima,Takeshi Ise,Kaoru Tachiiri,Etsushi Kato,Shingo Watanabe,Michio Kawamiya. Climate Change, Allowable Emission, and Earth System Response to Representative Concentration Pathway Scenarios. Journal of the Meteorological Society of Japan, 2012, 90, 3, p. 417-434, doi: 10.2151/jmsj.2012-305
Tachiiri Kaoru, Ito Akihiko., Hajima Tamohiro, Hargreaves Julia C, Annan James D, Kawamiya Michio. Nonlinearity of land carbon sensitivities in climate change simulations. Journal of the Meteorological Society of Japan, 2012, 90, A, p. 261-276
斉藤和之,宮崎 真,羽島知洋,末吉哲雄. 陸域モデル相互比較. 気象研究ノート, 2014, 230, p. 200-215
羽島. 「気候変動(WG1):炭素循環および累積炭素排出量に対する気候の過渡的応答」 “Summary of WG1 of IPCC-AR5: Global carbon cycle and transient climate response to cumulative carbon emission”. 環境情報科学, 2014, 43, 3, p. 14-20
T. Sueyoshi, R. Ohgaito, A. Yamamoto, M. O. Chikamoto, T. Hajima, H. Okajima, M. Yoshimori, M. Abe, R. O’ishi, F. Saito, S. Watanabe, M. Kawamiya, and A. Abe-Ouchi. Setup of the PMIP3 paleoclimate experiments conducted using an Earth System Model, MIROC-ESM. Geoscientific Model Development Discussion, 2012, 5, 3, p. 2527-2569, doi: doi:10.5194/gmdd-5-2527-2012
R. Ohgaito, T. Sueyoshi, A. Abe-Ouchi, T. Hajima, S. Watanabe, H.-J. Kim, A. Yamamoto, and M. Kawamiya. Climate and African precipitation changes in the mid-Holocene simulated using an Earth System Model MIROC-ESM. Clim. Past Discuss., 2012, 4, 8, p. 3277-3343, doi: 10.5194/cpd-8-3277-2012
安成哲三・熊谷朝臣・栗田進・立入郁・小野朗子・上野健一・徐健青・浅沼順・佐藤友徳・市井和仁・羽島知洋・馬淵和雄. 「ユーラシア・アジアモンスーン地域の気候―陸域相互作用研究会」の報告. 天気/ユーラシア・アジアモンスーン地域の気候―陸域相互作用研究会/日本気象学会, 2012, 59, 5, p. 381-391
Michio Kawamiya, Tomohiro Hajima, Tatsushi Tokioka. Foreseeing the forests: vegetation dynamics in an earth system model. Forests for People, Tudor Rose, 2012, p. 291-294
Tachiiri K., Hajima. T.. Earth system modeling and expectations for future collaboration with AsiaFlux. AsiaFlux 2019, 2019
羽島 知洋. 地球システムモデルによる全球物質循環シミュレーションの紹介. EN-Sustainable Development Goalsの包括的解決へ向けて, 第3回ワークショップ, 2018
K. Ichii, W. Yang, H. Kobayashi, H. Takayama, T. Hajima, M. Abe, K. Tachiiri. Development and application of GCOM-C LAI and GPP/NPP research products. IEEE International Geoscience and Remote Sensing Symposium, 2017, 2017
TACHIIRI KAORU, HAJIMA TOMOHIRO, ITO AKIHIKO, KAWAMIYA MICHIO. Decomposition of CO2 fertilization effect into contributions by land ecosystem processes: comparison among CMIP5 Earth system models. 2016 International Land Model Benchmarking Workshop, 2016
Saito Kazuyuki, Miyazaki Shin, Mori Junko, Yamazaki Takeshi, Ise Takeshi, Arakida Hazuki, Hajima Tomohiro, Hosaka Masahiro, Iijima Yoshihiro, Ito Akihiko, Matsuura Yojiro, Niwano Masashi, Nitta Tomoko, O'ishi, Ryota, Ohta Takeshi, Park Hotaek, Sasai Takahiro, Sato Atsushi, Sato Hisashi, Sueyoshi Tetsuo, Suzuki Rikie, Tanaka Katsunori, Yamaguchi Satoru, Yoshimura Kei. GRENE-TEA Model Intercomparison Project (GTMIP) stage 1: protocol, forcing data and preliminary results. PAGE21 (Changing Permafrost in the Arctic and its Global Effects in the 21st century)総会, 2014
Michio Watanabe, Hiroaki Tatebe, Hiroshi Koyama, Takahito Kataoka, Tomohiro Hajima, Masahiro Watanabe, Michio Kawamiya. Predictability of air-sea CO2 fluxes with an Earth system model incorporating an initialization system. Japan Geoscience Union Meeting 2021, 2021
M. Kawamiya, T. Hajima, K. Tachiiri, J. Tsutsui, T. Yokohata, T. Arakawa and the TOUGOU members. Integrated Research Program for Advancing Climate Models – Theme B: national research program in Japan on earth system modeling. 日本地球惑星科学連合, 2020
Tokuta YOKOHATA, Tsuguki Kinoshita, Gen Sakurai, Yadu Pokhrel, Akihiko Ito, Yusuke Satoh, Etsushi Kato, Shinichiro Fujimori, Kaoru Tachiiri , Tomohiro Hajima, Kiyoshi Takahashi, Naota Hanasaki, Seita Emori. Future projection of water, food, bio-energy, ecosystem and land investigated with an integrated Earth System Model (MIROC-INTEG). Twelfth Annual Meeting of the Integrated Assessment Modeling Consortium, 2019
Tomohiro Hajima. To understand the relationship between anthropogenic CO2 emission and global temperature change:C4MIP, ZECMIP & CDRMIP simulations using MIROC-ES2L. Workshop on Earth system modeling for climate mitigation scenarios, 2019
Tomohiro Hajima, Shingo Watanabe, Michio Kawamiya, Kaoru Tachiiri, Hiroaki Tatebe, Akihiko Ito, Kumiko Takata, Michio Watanabe, Maki Noguchi, Akitomo Yamamoto, Akinori Ito, Manabu Abe, Rumi Ohgaito, Dai Yamazaki. Progress of MIROC-ES2 simulations in CMIP6 and the analysis of the biogeochemical feedbacks. JPGU2019, 2019
Michio Watanabe, Hiroaki Tatebe, Hiroshi Koyama, Tomohiro Hajima, Masahiro Watanabe, Michio Kawamiya. Air-sea CO2 flux variations within the tropical Pacific simulated with two ESMs embedded an ocean data assimilation system. JpGU2019, 2019
Ichii K., K. Murakami, H. Takayama, T. Hajima, K. Tachiiri. Analyzing Model Biases in Terrestrial Carbon Cycle Submodels in Earth System Models and Offline Models. Japan Geoscience Union Meeting 2019, 2019
Michio Watanabe, Hiroaki Tatebe, Hiroshi Koyama, Tomohiro Hajima, Masahiro Watanabe, and Michio Kawamiya. Key to reproduce CO2 flux fluctuations associated with ENSO using ocean data assimilation. Joint US-Japan Workshop on Climate Change and Variability, 2019
Maki Noguchi, Fumikazu Taketani, Takashi Sekiya, Kazuyo Yamaji, Taketo Hashioka, Michio Watanabe, Tomohiro Hajima, Naomi Harada. Modelling impacts of atmospheric and riverine nitrogen inputs on marine biogeochemistry. 2nd International Symposium “Ocean Mixing Processes: Impact on Biogeochemistry, Climate and Ecosystem”, 2018
野口真希、羽島知洋、渡辺路生、山本彬友. Development of Ocean Biogeochemical Model for New Earth System Model (MIROC-ES2L). 寒冷圏大気-海洋間の生物地球科学的相互作用に関する研究集会(低温科学研究所 平成30年度共同利用研究集会), 2018
Michio Watanabe, Maki Noguchi, Tomohiro Hajima, Akitomo Yamamoto. Development of the marine ecosystem model OECO2 to be embedded into the Earth system model MIROC-ES2. 4th International Symposium: The Effects of climate change on the world's oceans, 2018
Tokuta Yokohata, Kazuyuki Saito, Tomohiro Hajima, Akihiko Ito, Kumiko Takata, Hiroshi Ohno, Go Iwahana, Hirokazu Machihya, Tetsuso Sueyoshi. Projecting future greenhouse gas release by an Earth system model with explicit permafrost dynamics. 2018 JpGU, 2018
K Tachiiri, T Hajima, K Ichii, M Noguchi, M Abe, H Takayama. Investigation of the possibility to improve an Earth system model utilizing GCOM-C data. Joint PI Meeting of JAXA Global Environment Observation Mission FY2017, 2018
K. Tachiiri, D. Silva Herran, T. Hajima. Land use scenarios for climate stabilization with a high climate sensitivity model. Current issues and key knowledge gaps of land-use in the climate system, 2017
Tachiiri, K., Hajima, T., Ichii, K., Noguchi, M., Abe, M., Takayama, H.. Investigation of the possibility to improve an Earth system model utilizing GCOM-C data. Joint PI Meeting of JAXA Global Environment Observation Mission 2016, 2017
Tomohiro Hajima. Land ecosystem model in Earth system modeling. Workshop on Land surface model development for the coming decade, 2016
Tomohiro Hajima, Kaoru Tachiiri, Michio Kawamiya. Climate-carbon cycle changes during 1000 years in doubled CO2 concentration simulated by MIROC-ESM. JPGU 2016, 2016
Tomohiro Hajima. Long-term climate and carbon cycle projections by an Earth system model. 7th Japan-EU Workshop on Climate Change Research, 2016
Climate Change Projections with Carbon Cycle: Earth System Models. COP21/CMP11 Japan pavilion event: "Global Carbon Monitoring - towards Modeling, Projection and Policy Decision", 2015
Hideki Kobayashi,Shin Nagai, Tomohiro Hajima, Yuhsaku Ono, Youngryel Ryu, Rikie Suzuki. Satellite remote sensing of terrestrial vegetation dynamics in the Asia region and climate sensitivity. International workshop on "Asian Greenhouse Gases Budget", 2014
K. Tachiiri, T. Hajima, M. Kawamiya. Extensions of RCP2.6/4.5 with zero emission after 2100: as 2K/3K stabilization scenarios for MIROC-ESM, International Workshop on Climate Modeling. International Workshop on Climate Modeling –Climate2014-, 2014
An overview on long-term projection experiments using MIROC-ESM and an associated EMIC. 3rd International Conference on Earth System Modelling, 2012
Tomohiro Hajima, Takeshi Ise, Kaoru Tachiiri, Etsushi Kato, Shingo Watanabe, Michio Kawamiya. Climate, carbon cycle, and earth system response to representative concentration pathway scenarios in MIROC-ESM. International workshop on climate change projection and high performance computing "Climate 2012", 2012
Rikie Suzuki,Tomohiro Hajima,Hideki Kobayashi. The significance of coupling satellite data and models for biogeoscience studies. Quantifying snd Predicting Terrestrial Carbon Sinks in East Asia-Toward a Network of Climate Change Research-2010 Seoul Workshop(Terrestrial Carbon Sinks in East Asia), Korea University, Seoul, Korea, 2010
Tomohiro Hajima. Dynamic Vegetation Model Coupled to GCM. International Workshop on Global Change Projection:Modeling, Intercomparison, and Impact Assessment jointly with 2nd International Workshop on KAKUSHIN pogram, 2008
Michio Watanabe, Hiroaki Tatebe, Hiroshi Koyama, Takahito Kataoka, Tomohiro Hajima, Masahiro Watanabe, Michio Kawamiya. Reconstruction of air-sea CO2 fluxes with an Earth system model incorporating an initialization system. Ocean Sciences Meeting 2022, 2022
Michio Watanabe, Akitomo Yamamoto, Tomohiro Hajima, Hiroaki Tatebe. Assessing the role of deep ocean mixing on carbon and nutrient cycles using an Earth system model. Japan Geoscience Union Meeting 2021, 2021
Tachiiri K, Su X, Matsumoto K, Hajima T., Yokohata T. Development of a coupled Earth and socio-economic system model. JpGU meeting 2021, 2021, p. ACG35-P02
Manabu Abe, Tomohiro Hajima. Simulated impact of the 1815 Tambora eruption on global climate with MIROC-ES2L. JpGU Meeting 2021, 2021
Tomohiro Hajima, Akitomo Yamamoto, Michio Kawamiya, Xuanming Su, Micho Watanabe, Rumi Ohgaito, Hiroaki Tatebe. Millennium time-scale experiments with doubled CO2 concentration by Earth system models. JpGU2021, 2021
Kaoru Tachiiri, Tomohiro Hajima, Manabu Abe, Maki Noguchi, Kazuhito Ichii, Hideki Yamasaki, Liu Zhiyan. Towards sophisticating an Earth system model using SGLI and other satellite data. Joint PI Meeting of Global Environment Observation Missions FY2020, 2021, p. GC010
Rumi Ogaito, Manabu Abe, Akinori Ito, Hideo Shiogama, Hiroaki Tatebe, Tomohiro Hajima, Michio Kawamiya. A modelling study on climate changes due to the COVID-19 pandemic. AGU fall meeting 2020, 2020
Rumi Ogaito, Michio Kawamiya, Tomohiro Hajima, Ken'ichi Matsumoto. Will the pandemic of COVID-19 change climate?: tests using MIROC-ES2L earth system model . JpGU-AGU joint meeting 2020, 2020
Manabu Abe, Tomohiro Hajima. Impact of volcanic eruption on surface climate in VolMIP experiments by MIROC-ES2L. JpGU-AGU Joint Meeting 2020, 2020
Kazuya Kusahara, Hiroaki Tatebe, Tomohiro Hajima, Fuyuki Saito. Modeling ocean-ice shelf interaction over the Southern Ocean under RCP8.5 scenario. JpGU-AGU Joint Meeting 2020, 2020
Michio Watanabe, Hiroaki Tatebe, Hiroshi Koyama, Tomohiro Hajima, Masahiro Watanabe, Michio Kawamiya. Estimating global air-sea and air-land CO2 flux fluctuations over the past forty years with an ESM incorporating an ocean data assimilation system. JpGU-AGU Joint Meeting 2020, 2020
Michio Watanabe, Akitomo Yamamoto, Tomohiro Hajima, Hiroaki Tatebe. Role of deep ocean mixing on climate change assessed by an Earth system model. JpGU-AGU Joint Meeting 2020, 2020
Prabir Patra, Tomohiro Hajima, Ryu Saito, Naveen Chandra, Yukio Yoshida, Michio Kawamiya, Masayuki Kondo, Kazuhito Ichii, Akihiko Ito, Dave Crisp. Utility of total column CO2 observations by satellites and atmospheric CO2 inversion for evaluating carbon cycle processes in the Earth System Models. Japan Geoscience Union Meeting, 2020
Michio Watanabe, Akitomo Yamamoto, Tomohiro Hajima, Hiroaki Tatebe. Role of the deep ocean mixing on the global carbon cycle evaluated with an Earth system model. Ocean Sciences Meeting 2020, 2020
Rumi Ohgaito, Ayako Abe-Ouchi, Akitomo Yamamoto, Tomohiro Hajima. LGM experiments using MIROC Earth System Models: some preliminary analyses on dust aerosol. INQUA2019, 2019
Ohgaito, Hajima, Yamamoto, Tatebe, Kawamiya, Abe-Ouchi. A Last Glacial Maximum experiment using MIROC-ES2L earth system model in comparison with ice core and the other paleo-proxy data. JpGU 2019, 2019
Michio Watanabe , Akitomo Yamamoto, Tomohiro Hajima, Hiroaki Tatebe. Role of deep ocean mixing on global carbon uptake evaluated with an Earth system model. 3rd International Symposium "Ocean mixing processes: Impact on biogeochemistry, climate and ecosystem", 2019
Manabu Abe, Akinori Ito, Tomohiro Hajima, Michio Watanabe, Maki Noguchi Aita. Effect of two different DMS emission schemes on aerosol processes on the Earth System Model, MIROC-ES2L. SOLAS Open Science Conference, 2019
Michio Watanabe, Akitomo Yamamoto, Tomohiro Hajima, Hiroaki Tatebe. Role of deep ocean mixing on global carbon cycle evaluated with an Earth system model. 2018 AGU Fall Meeting, 2018
Rumi Ohgaito, Ayako Abe-Ouchi, Toshihiko Takemura, Akinori Ito, Ryouta O’ishi, Tomohiro Hajima, Shingo Watanabe, Michio Kawamiya. How mineral dust aerosol during LGM affects temperature surrounding of the Antarctica. 1st GRAntarctic international symposium, 2018
井上 忠雄、羽島 知洋、伊藤 昭彦. Plans for developing an Earth system model with CH4 dynamics. JPGU2018, 2018
Ogaito R., Tomohiro Hajima, H. Tatebe, M. O’ishi Ryouta, Yamamoto Akitomo, Manabu Abe, Ayako Abe, Michio Kawamiya. Last Glacial Maximum and Last Millennium experiments towards CMIP6/PMIP4 using MIROC-ES2L and preliminary analyses. JpGU 2018, 2018
Tomohiro Hajima. Development of a new Earth system model and its application in the project of "Integrated Research Program for Advancing Climate Models. JPGU2018, 2018
Rumi Ohgaito, Tomohiro Hajima, Hiroaki Tatebe, Manabu Abe, Ayako Abe-Ouchi, Michio Kawamiya. Towards CMIP6/PMIP4: Preparation of the Last Glacial Maximum and the Last Millennum experiments using MIROC-ES2L. EGU general assembly 2018, 2018
Rumi Ohgaito, Ayako Abe-Ouchi, Ryouta O’ishi, Toshihiko Takemura, Akinori Ito, Tomohiro Hajima, Shingo Watanabe, Michio Kawamiya. Modelling the effect of glaciogenic dust on the LGM temperature. EGU general assembly 2018, 2018
Maki Noguchi, Michio Watanabe, Tomohiro Hajima, Dai Yamazaki, Fumikazu Taketani, Takashi Sekiya, Kazuyo Yamaji, Taketo Hashioka, Naomi Harada. Modelling impacts of riverine and atmospheric nitrogen inputs on marine biogeochemistr. 2018 Ocean Sciences Meeting, Portland, Oregon, U.S.A., 2018
K. Tachiiri, T. Hajima, M. Kawamiya. Increase of uncertainty in transient climate response to cumulative carbon emissions after stabilization of atmospheric CO2 concentration. 4th International Conference on Earth System Modelling, 2017
Tomohiro Hajima, Michio Kawamiya, and MIROC-ES2 developers. Development of a new Earth system model “MIROC-ES2” for CMIP6. Fourth International Conference on Earth System Modelling, 2017
Tomohiro Hajima, Michio Kawamiya, Akihiko Ito, and Kaoru Tachiiri and MIROC-ES2. Strength of CO2 fertilization effect in a new ESM with explicit terrestrial carbon–nitrogen interactions. 10th International Carbon Dioxide Conference, 2017
Maki Noguchi, Michio Watanabe, Tomohiro Hajima. Modelling the impact of riverine and atmospheric nitrogen inputs on the marine biogeochemistry. 日本地球惑星科学連合、JpGU Meeting 2017、幕張メッセ、千葉, 2017
Tomohiro Hajima. Earth system modeling to contribute to the Paris Agreement. 気候変動枠組み条約(UNFCCC)における「科学上及び技術上の助言に関する補助機関」(SBSTA)および「実施に関する補助機関」(SBI)第46回会合, 2017
TACHIIRI KAORU, HAJIMA TOMOHIRO. Effect of bias in Leaf Area Index to climate in MIROC-ESM. Japan Geoscience Union Meeting 2016, 2016
Tomohiro Hajima, Kaoru Tachiiri, Michio Kawamiya. Carbon cycle feedback of land ecosystems in response to atmospheric CO2 increase. Workshop on CMIP5 Model Analysis and Scientific Plans for CMIP6, 2015
Tachiiri K., Hajima T., Kawamiya M.. Reproducibility of the present-day Leaf Area Index by CMIP5 Earth System Models. EMBRACE-CMIP Analysis and Modelling Workshop, 2015
Ohgaito R, Abe-Ouchi A., Takemura T., Sueyoshi T., Watanabe S., O’ishi R., Hajima T., Okajima H., Saito F., Chikamoto M.O., and Kawamiya M.. The modeling of mineral dust aerosol at the Last Glacial Maximum using MIROC-ESM and analyses on the feedbacks on the climate. XIX INQUA Congress: Quaternary Perspectives on Climate Change, 2015
Saito Kazuyuki, Miyazaki Shin, Mori Junko, Ise Takeshi, Yamazaki Takeshi, Arakida Hazuki, Hajima Tomohiro, Hosaka Masahiro, Iijima Yoshihiro, Ikegami Kanae, Ito Akihiko, Matsuura Yojiro, Niwano Masashi, Nitta Tomoko, Oishi Ryota, Ohta Takeshi, Park Hotaek, Sasai Takahiro, Sato Atsushi, Sato Hisashi, Sueyoshi Tetsuo, Sugimoto Atsuko, Suzuki Rikie, Tanaka Katsunori, Yamaguchi Satoru, Yoshimura Kei. GRENE-Terrestrial Model Intercomparison Project in Arctic (GTMIP): Preliminary results of Stage 1. 2014 Fall Meeting of American Geophysical Union, 2014
Tomohiro Hajima, Kaoru Tachiiri, Akihiko Ito and Michio Kawamiya. What determines the magnitude of CO2 - land carbon feedback in ESMs?. 2014 American Geophysical Union fall meeting, 2014
Sueyoshi Tetsuo, Saito Kazuyuki, Miyazaki Shin, Mori Junko, Iijima Yoshihiro, Hajima Tomohiro. Forcing Dataset for GRENE-TEA Model Intercomparison Project (GTMIP). Asia Oceania Geoscience Society, 11th Annual Meeting, 2014
大垣内るみ, 阿部彩子, 竹村俊彦, 末吉哲雄, 渡辺真吾, 羽島知洋, 大石龍太, 岡島秀樹, 齋藤冬樹, 近本めぐみ, 河宮未知生. MIROC-ESMをもちいた最終氷期最大期実験初期解析-ダストエアロゾル分布. Japan Geoscience Union Meeting 2014, 2014
K Tachiiri, T Hajima, S Watanabe, M Kawamiya. Dependence of regional vegetation activity on change in global mean surface air temperature. Pattern scaling, climate model emulators and their application to the new scenario process Workshop, 2014
Tomohiro Hajima, Kaoru Tachiiri, Michio Kawamiya. A simple method to diagnose carbon uptake capacity in land and ocean. Climate2014, 2014
大垣内るみ, Sueyoshi T, Abe-Ouchi A, Hajima T, Watanabe S, Kim H-J, Yamamoto A, Kawamiya M. 地球システムモデルMIROC-ESMをもちいた完新世中期の気候再現性. 2013年度古海洋・古気候に関するシンポジウム, 2014
K. Tachiiri, T. Hajima, M. Kawamiya. Robustness of the proportionality of global mean temperature change to cumulative carbon emission. the 2013 American Geophysical Union Fall Meeting, 2013
Tomohiro Hajima, Kaoru Tachiiri, Akihiko Ito, Michio Kawamiya. CO2 concentration-carbon feedback of terrestrial ecosystems in CMIP ESMs. 9th International Carbon Dioxide Conference, 2013
大垣内るみ, 末吉哲雄, 阿部彩子,羽島知洋,渡辺真吾,Hyungjin Kim, 山本彬友,河宮未知生. MIROC-ESMをもちいた完新世中期のサハラ域の降水- MIROC 3と比較して. 日本気象学会2013年度春季大会, 2013
Kazuyuki Saito, Takeshi Yamazaki, Takeshi Ise, Tomohiro Hajima, Masahiro Hosaka, Akihiko Ito, Shinji Matsumura, Masashi Niwano, Ryouta O’ishi, Hotaek Park, Tetsuo Sueyoshi, Satoru Yamaguchi, Kei Yoshimura. Goals and Activities of the Terrestrial Modeling Group of "GRENE Arctic Climate Change Research Project". International Symposium on the Arctic Research, III, 2013
Tomohiro Hajima,T. Ise, K. Tachiiri, E. Kato, S. Watanabe, M. Kawamiya. Different behaviors of an Earth system model toward four CO2 concentration scenarios. AGU fall meeting 2012, 2012
Kazuyuki Saito, Takeshi Yamazaki, Takeshi Ise, Tokohiro Hajima, Masahiro Hosaka, Akihiko Ito, Masashi Niwano, Ryouta O’ishi, Hotaek Park, Tetsuo Sueyoshi, Satoru Yamaguchi, Kei Yoshimura. Goals and Activities of the Terrestrial Modeling Group of “GRENE Arctic Climate Change Research Project. 第3回極域科学シンポジウム, 2012
Tachiiri, K. Hargreaves, J. C., Annan, J. D., Huntingford, C., Hajima, T. and Kawamiya, M.. Uncertainty in land carbon storage for the RCP 4.5 scenario. the 3rd International Conference on Earth System Modelling, 2012
Ohgaito R., Sueyoshi T., Abe-Ouchi A., Hajima T., Watanabe S., Kim H. -J., Yamamoto A. and Kawamiya M.. African monsoon changes in the mid-Holocene simulated using an Earth System Model MIROC-ESM. Paleoclimate Modelling Intercomparison Project phase 3, 2012
Poster presentation Invited(Belonging to JAMSTEC)
Ogaito, A Yamamoto, T Hajima, M Abe, H Tatebe, M Kawamiya, A Abe. Simulating selected time intervals during the Quaternary using MIROC-ES2L earth system model in comparison with paleo-proxy data. JpGU-AGU joint meeting 2020, 2020