Profile

Speciality: Climate Dynamics, Physical Oceanography
Society: JOS, JSOP, JMS, JpGU, AGU
Self introduction: Yushi Morioka is working on seasonal-decadal climate variability and prediction, mainly in the Southern Hemisphere, using observation data and climate modelling technique.

He is also involved in several outreach activities of ocean and climate sciences to society, for example, by contributing to the following websites on regular basis:
http://www.jamstec.go.jp/aplinfo/climate/?lang=en
http://www.jamstec.go.jp/aplinfo/kowatch/?lang=en
Award: 2019/09/27　2019年度日本海洋学会岡田賞; 2019/03/05　2019 Advances in Atmospheric Sciences (AAS) Editor's Award; 2018/04/02　平成29年度業績表彰・研究開発功績賞; 2016/04/01　平成27年度業績表彰・社会貢献功績賞

Research Achievement

Peer reviewed publications (Belonging to JAMSTEC)

Yushi Morioka, Liping Zhang, Thomas Delworth, Xiaosong Yang, Fanrong Zeng, Masami Nonaka, Swadhin Behera. Multidecadal variability and predictability of Antarctic sea ice in the GFDL SPEAR_LO model. Cryosphere, 2023, 17, p. 5219-5240, doi: 10.5194/tc-17-5219-2023
Massonnet F, Barreira S, Barthélemy A, Bilbao R, Blanchard-Wrigglesworth E, Blockley E, Bromwich DH, Bushuk M, Dong X, Goessling HF, Hobbs W, Iovino D, Lee W-S, Li C, Meier WN, Merryfield WJ, Moreno-Chamarro E, Morioka Y, Li X, Niraula B, Petty A, Sanna A, Scilingo M, Shu Q, Sigmond M, Sun N, Tietsche S, Wu X, Yang Q and Yuan X. SIPN South: six years of coordinated seasonal Antarctic sea ice predictions. Frontiers in marine science, 2023, 10, doi: 10.3389/fmars.2023.1148899
Liping Zhang, Thomas Delworth, Xiaosong Yang, Yushi Morioka, Fanrong Zeng, Feiyu Lu. Skillful decadal prediction skill over the Southern Ocean based on GFDL SPEAR Model-Analogs. Environmental Research Communications, 2023, 5, 2, doi: 10.1088/2515-7620/acb90e
Liping Zhang, Thomas L. Delworth, Xiaosong Yang, Fanrong Zeng, Feiyu Lu, Yushi Morioka, Mitch Bushuk. The relative role of the subsurface Southern Ocean in driving negative Antarctic Sea ice extent anomalies in 2016–2021. Communications Earth & Environment, 2022, 3, 302, doi: 10.1038/s43247-022-00624-1
Le Chang, Yushi Morioka, Swadhin Behera, Jing-Jia Luo, Haiming Xu, Bing Zhou. What mainly drives the interannual climate variability over the Barents-Kara Seas in boreal early autumn?. JOURNAL OF GEOPHYSICAL RESEARCH - Atmospheres, 2022, 127, 21, doi: 10.1029/2021JD036216
Yushi Morioka, Doroteaciro Iovino, Andrea Cipollone, Simona Masina, Swadhin Behera. Decadal Sea Ice Prediction in the West Antarctic Seas with Ocean and Sea Ice Initializations. Communications Earth & Environment, 2022, 3, 189, doi: 10.1038/s43247-022-00529-z
Liping Zhang, Thomas L. Delworth, Sarah Kapnick, Jie He, William Cooke, Andrew T. Wittenberg, Nathaniel C. Johnson, Anthony Rosati, Xiaosong Yang, Feiyu Lu, Mitchell Bushuk, Colleen McHugh, Hiroyuki Murakami, Fanrong Zeng, Liwei Jia, Kai-Chih Tseng, Yushi Morioka. Roles of meridional overturning in subpolar Southern Ocean SST trends: Insights from ensemble simulations. JOURNAL OF CLIMATE, 2021, 35, 5, p. 1577-1596, doi: 10.1175/JCLI-D-21-0466.1
Yushi Morioka, Swadhin Behera. Remote and Local Processes Controlling Decadal Sea Ice Variability in the Weddell Sea. JOURNAL OF GEOPHYSICAL RESEARCH - Oceans, 2021, 126, 8, doi: 10.1029/2020JC017036
Yushi Morioka, Doroteaciro Iovino, Andrea Cipollone, Simona Masina, Swadhin Behera. Summertime sea-ice prediction in the Weddell Sea improved by sea-ice thickness initialization. Scientific Reports, 2021, 11, 11475, doi: 10.1038/s41598-021-91042-4
Marvin Seow, Yushi Morioka, Tomoki Tozuka. Roles of Tropical Remote Forcings on the South China Sea Winter Atmospheric and Cold Tongue Variabilities. JOURNAL OF CLIMATE, 2021, 34, 10, p. 4103-4118, doi: 10.1175/JCLI-D-20-0657.1
Liping Zhang, Thomas L. Delworth, William Cooke, Hugues Goosse, Mitchell Bushuk, Yushi Morioka, Xiaosong Yang. The Dependence of Internal Multidecadal Variability in the Southern Ocean on the Ocean Background Mean State. JOURNAL OF CLIMATE, 2021, 34, 3, p. 1061-1080, doi: 10.1175/JCLI-D-20-0049.1
J.V. Ratnam, Takeshi Doi, Yushi Morioka, Pascal Oettli, Masami Nonaka, Swadhin K. Beheera. Improving predictions of surface air temperature anomalies over Japan by Selective Ensemble Mean technique. WEATHER AND FORECASTING, 2020, 36, 1, doi: 10.1175/WAF-D-20-0109.1
Beraki, A. F., Morioka, Y., Engelbrecht, F. A., Nonaka, M., Thatcher, M., Kobo, N., Behera, S. K.. Examining the impact of multiple climate forcings on simulated Southern Hemisphere climate variability. CLIMATE DYNAMICS, 2020, 54, p. 4775-4792, doi: 10.1007/s00382-020-05253-y
Yushi Morioka. 南半球の海面水温に現れる経年から十年規模変動に関する研究-2019年度日本海洋学会岡田賞受賞記念論文-. 海の研究, 2020, 29, 1, p. 1-17
Yoonhee Kim, J. V. Ratnam, Takeshi Doi, Yushi Morioka, Swadhin Behera, Ataru Tsuzuki, Noboru Minakawa, Neville Sweijd, Philip Kruger, Rajendra Maharaj, Chisato Chrissy Imai, Chris Fook Sheng Ng, Yeonseung Chung and Masahiro Hashizume. Malaria predictions based on seasonal climate forecasts in South Africa: A time series distributed lag nonlinear model. Scientific Reports, 2019, 9, doi: 10.1038/s41598-019-53838-3
Yushi Morioka, Sergey Varlamov, Yasumasa Miyazawa. Role of Kuroshio Current in fish resource variability off southwest Japan. Scientific Reports, 2019, 9, doi: 10.1038/s41598-019-54432-3
Yitian Qian, Hiroyuki Murakami, Masuo Nakano, Pang-Chi Hsu,Thomas L. Delworth, Sarah B. Kapnick, V. Rammaswamy,Takashi Mochizuki, Yushi Morioka, Takeshi Doi, Takahito Kataoka, Tomoe Nasuno, Kohei Yoshida. On the Mechanisms of the Active 2018 Tropical Cyclone Season in the North Pacific. GEOPHYSICAL RESEARCH LETTERS, 2019, 46, 21, p. 12293-12302, doi: 10.1029/2019GL084566
J. V. Ratnam, H. A. Dijkstra, Takeshi Doi, Yushi Morioka, Masami Nonaka and Swadhin K. Behera. Improving seasonal forecasts of air temperature using a genetic algorithm. Scientific Reports, 2019, 9, doi: 10.1038/s41598-019-49281-z
Yushi Morioka, Takeshi Doi, Doroteaciro Iovino, Simona Masina, Swadhin K. Behera. Role of sea-ice initialization in climate predictability over the Weddell Sea. Scientific Reports, 2019, 9, doi: 10.1038/s41598-019-39421-w
Annalisa Cherchi, Tercio Ambrizzi, Swadhin Behera, Ana Carolina Freitas, Yushi Morioka, Tianjun Zhou. The Response of Subtropical Highs to Climate Change. Current Climate Change Reports, 2018, 4, 4, p. 371-382, doi: 10.1007/s40641-018-0114-1
Behera, S. K., Y. Morioka, T. Ikeda, T. Doi, J. Ratnam, M. Nonaka, A. Tsuzuki, C. Imai, Y. Kim, M. Hashizume, S. Iwami, P. Kruger, R. Maharaj, N. Sweijd and N. Minakawa. Malaria incidences in South Africa linked to a climate mode in southwestern Indian Ocean. Environmental Development, 2018, 27, p. 47-57, doi: 10.1016/j.envdev.2018.07.002
Yushi Morioka, Takeshi Doi, Andrea Storto, Simona Masina, Swadhin K. Behera. Role of subsurface ocean in decadal climate predictability over the South Atlantic. Scientific Reports, 2018, 8, doi: 10.1038/s41598-018-26899-z
Tomomichi Ogata, Takeshi Doi, Yushi Morioka, Swadhin Behera. Mid-latitude source of the ENSO-spread in SINTEX-F ensemble predictions. CLIMATE DYNAMICS, 2018, doi: https://doi.org/10.1007/s00382-018-4280-6
森岡優志. 海が鍵を握るアフリカ南部の気候変動. Ocean Newsletter, 2018, 423, p. 2-3
Yushi Morioka, Takeshi Doi, Swadhin K. Behera. Decadal climate predictability in the southern Indian Ocean captured by SINTEX-F using a simple SST-nudging scheme. Scientific Reports, 2018, 8, doi: 10.1038/s41598-018-19349-3
Yushi Morioka, Francois Engelbrecht, Swadhin K. Behera. Role of Weddell Sea ice in South Atlantic atmospheric variability. CLIMATE RESEARCH, 2017, 74, 2, p. 171-184
森岡優志、美山透、Sergey Varlamov、宮澤泰正、古川恵太、遠藤愛子、植松光夫、宮崎信之、山形俊男. SIMSEAの科学的基礎の確立に向けた戦略的取り組み. 日本海洋政策学会誌, 2017, 7, p. 133-144
上野洋路・小埜恒夫・森岡優志・藤井直紀・藤井賢彦・轡田邦夫・原田尚美. 海の出前授業：日本海洋学会講師派遣事業. 沿岸海洋研究, 2017, 55, 1, p. 65-70
Yushi Morioka, Bunmei Taguchi, Swadhin K. Behera. Eastward propagating decadal temperature variability in the South Atlantic and Indian Oceans. JOURNAL OF GEOPHYSICAL RESEARCH - Oceans, 2017, 122, 7, p. 5611-5623, doi: 10.1002/2017JC012706
Takayoshi Ikeda, Swadhin K. Behera, Yushi Morioka, Noboru Minakawa, Masahiro Hashizume, Ataru Tsuzuki, Rajendra Maharaj, Philip Kruger. Seasonally lagged effects of climatic factors on malaria incidence in South Africa. Scientific Reports, 2017, 7, 2458, doi: 10.1038/s41598-017-02680-6
Ingo Richter, Shang-Ping Xie, Yushi Morioka, Takeshi Doi, Bunmei Taguchi, Swadhin Behera. Phase locking of equatorial Atlantic variability through seasonal migration of the ITCZ. CLIMATE DYNAMICS, 2016, 48, 11-12, p. 3615-3629, doi: 10.1007/s00382-016-3289-y
Takayoshi Ikeda, Yushi Morioka , Caradee Wright. Linking climate predictions to infectious diseases in southern Africa. EOS（Earth and Space Science News）, 2016, 97
Oettli Pascal. A Regional Climate Mode Discovered in the North Atlantic: Dakar Nino/Nina. Scientific Reports, 2016, 6
Potential Sources of Decadal Climate Variability over Southern Africa. Journal of Climate, 2015, 28, p. 8695-8709
Linking the Southern Annular Mode to the Diurnal Temperature Range Shifts over Southern Africa.. International Journal of Climatology, 2015, doi: 10.1002/joc.4281
Yushi Morioka. Local SST Impacts on the Summertime Mascarene High Variability. Journal of Climate, 2015, 28, p. 678-694, doi: 10.1175/JCLI-D-14-00133.1
Akihiko Takaya. Role of climate variability in the heatstroke death rates of Kanto region in Japan. Scientific Reports, 2014, 4, 5655, p. 1-6, doi: 10.1038/srep05655
Yushi Morioka, Masson Sebastien, Terray Pascal, Prodhomme Chloe, Behera Swadhin K., Yukio Masumoto. Role of tropical SST variability on the formation of subtropical dipoles. Journal of Climate, 2014, 27, 12, p. 4486-4507, doi: 10.1175/JCLI-D-13-00506.1
Manatsa Desmond, Yushi Morioka, Behera Swadhin K., Toshio Yamagata, Matarira Caxton. Link between Antarctic ozone depletion and summer warming over southern Africa. Nature Geoscience, 2013, 6, 11, p. 934-939, doi: 10.1038/ngeo1968
Yushi Morioka, Ratnam Venkata Jayanthi, Wataru Sasaki, Yukio Masumoto. Generation mechanism of the South Pacific subtropical dipole. Journal of Climate, 2013, 26, 16, p. 6033-6045, doi: 10.1175/JCLI-D-12-00648.1
Manatsa Desmond, Yushi Morioka, Behera Swadhin K., Matarira Caxton H.. Impact of Mascarene High variability on the East African‘short rains’. Climate Dynamics, 2013, 42, 5-6, p. 1259-1274, doi: 10.1007/s00382-013-1848-z
Yushi Morioka, Tomoki Tozuka, Toshio Yamagata. How is the Indian Ocean Subtropical Dipole excited?. Climate Dynamics, 2012, 41, 7-8, p. 1955-1968, doi: 10.1007/s00382-012-1584-9
Morioka Y., T. Tozuka, S. Masson, P. Terray, J. J. Luo, and T. Yamagata. Subtropical dipole modes simulated in a coupled general circulation model. Journal of Climate, 2012, 25, 12, p. 4029-4047, doi: 10.1175/JCLI-D-11-00396.1
升本順夫,森岡優志(東京大学) , 佐々木英治(地球シミュレータセンター). High-resolution Indian Ocean Simulations -Recent advances and issues from OFES-. AGU monograph "Ocean Modeling in an Eddying Regime", 2008, 177, p. 199-212

Non-peer reviewed publications (Belonging to JAMSTEC)

森岡　優志. ウェッデル海氷の経年変動と予測可能性. 月刊海洋, 2021, 53, 10, p. 524-530
森岡優志、美山透、Sergey Varlamov、宮澤泰正. 南・東アジアの縁辺海における持続可能なイニシアチブに向けた研究開発. 月刊海洋, 2020, 52, 8, p. 372-377
美山透, 森岡優志,Varlamov Sergey,宮澤泰正. 沿岸海洋モニタリングのための高解像度モデルの開発－四国宿毛湾を例にして－. 月刊海洋, 2017, 49, 6, p. 272-277

Book (Belonging to JAMSTEC)

Yushi Morioka, Francois Engelbrecht, Swadhin Behera. 9 - Interannual-to-decadal variability and predictability in South Atlantic and Southern Indian Oceans. Tropical and Extratropical Air-Sea Interactions, Elsevier, 2020, p. 221-235, doi: 10.1016/B978-0-12-818156-0.00004-6
Toshio Yamagata, Yushi Morioka, Swadhin K. Behera. Indo-Pacific Climate Variability and Predictability Chapter 1. Old and New Faces of Climate Variations. World Scientific Series on Asia-Pacific Weather and Climate, 2016, 7, p. 1-23

Invited oral presentation(Belonging to JAMSTEC)

Yushi Morioka, Dorotea Iovino, Andrea Cipollone, Simona Masina, Swadhin K. Behera. Decadal Sea Ice Variability and Predictability in the West Antarctic Seas. SCAR AntClimNow Program Seminar, 2023
Yushi Morioka, Swadhin K. Behera. Seasonal-decadal sea ice variability and predictability in the West Antarctic Seas. SCAR TATE Symposium 2022, 2022
森岡優志、野中正見、宮澤泰正、Swadhin Behera. 国連海洋科学十年と海洋研究　〜将来に向けて〜. 国連海洋科学の10年スタート ― 「Co-design」に向けて, 2021
Yushi Morioka, Francois Engelbrecht, Takeshi Doi, Andrea Storto, Simona Masina, Swadhin Behera. Decadal Variability and Predictability in the Southern Indian Ocean. International Symposium on Climate Variation, Prediction and Application: 20-year Anniversary of IOD Research, 2019
森岡優志. 南半球の海面水温に見られる経年から十年規模変動に関する研究. 2019年度日本海洋学会秋季大会岡田賞受賞記念講演, 2019
Yushi Morioka, Francois Engelbrecht, Takeshi Doi, Droteaciro Iovino, Andrea Storto, Simona Masina, Swadhin Kumar Behera. Decadal climate variability and predictability in the South Atlantic and southern Indian Oceans. NUIST-JAMSTEC Collaborative Research Workshop, 2019
森岡優志、美山透、Sergey Varlamov、宮澤泰正、古川恵太、遠藤愛子、植松光夫、宮崎信之、山形俊男. 日本におけるSIMSEAの取組み. 東京大学大気海洋研究所共同利用研究集会「陸と海と人と－里海」, 2017
森岡優志 , 土井威志 , Behera Swadhin K. , 山形俊男. 気候変動予測とバイオロギング~新たなサイエンスの可能性~. 東京大学大気海洋研究所共同利用研究集会バイオロギングと大気・海洋変動予測の未来-SIMSEAの推進に向けて, 2016
MORIOKA YUSHI , Engelbrecht Francois , BEHERA SWADHIN K.. Role of Weddell Sea ice variability in southern African climate. SASAS 2016, 2016
MORIOKA YUSHI , Engelbrecht Francois , BEHERA SWADHIN K.. The role of mid and high latitude air-sea interactions in interannual to multiyear climate variations over southern Africa. WCRP 31st WGNE meeting, 2016

External fund

KAKENHI (Grants-in- Aid for Scientific Research)

2022-2024　基盤研究（C）　「南極海の海氷に見られる１０年規模変動と予測可能性」　機関代表者
2019-2022　若手研究　「ウェッデル海氷の十年規模変動と予測可能性」　機関代表者
2015-2018　若手研究（B）　「南大西洋と南インド洋における十年規模変動の実態解明と予測可能性」　機関代表者

Commissioned Research

2022-2026　地球観測技術等調査研究委託事業気候変動予測先端研究プログラム　「気候変動予測と気候予測シミュレーション技術の高度化（全球気候モデル）」　協力者
2018-2021　その他受託　「2ヶ月後の関東地方平均地上気温予測研究」　参加者
2016-2021　環境研究総合推進費 S-15専門部会 S-15-3海域における自然資本・生態系サービスがもたらす自然的価値の予測評価　「海域の環境要因の将来予測データの整備および自然資本・生態系サービス予測評価の統合」　参加者
2014-2018　地球規模課題対応国際科学技術協力事業　「南部アフリカにおける気候予測モデルをもとにした感染症流行の早期警戒システムの構築」　参加者

Concurrent post

2023/12/22-2025/12/21　日本学術会議事務局　日本学術会議小委員会委員
2023/11/18　東海大学情報理工学部情報科学科　オンライン講義
2023/10/02-2024/03/31　株式会社朝倉書店　執筆
2023/07/26-2024/04/30　Head, IOC Sub-Commission for the Western Pacific Decade Coordination Office for the Western Pacific and Adjacent Areas Intergovernmental Oceanographic Commission, UNESCO　ECOP委員会（アジアの海洋若手専門家）メンバー
2023/06/23　ニュージャージー日本人学校　講演者
2023/05/15-2023/06/20　University of Tasmania　論文審査
2023/02/21-2023/03/22　DOCTORAL DEGREES BOARD UNIVERSITY OF CAPE TOWN　論文審査員
2022/12/24-2023/09/30　日本学術会議事務局　日本学術会議小委員会委員
2022/11/18　株式会社ニューズピックス　取材
2022/10/29　東海大学情報理工学部情報科学科　講師
2022/09/11　日本海洋学会海洋教育問題研究会　講師
2022/01/18　公益財団法人笹川平和財団　講演者およびパネリスト
2021/12/04　東海大学情報理工学部情報科学科　講演者
2021/10/28　Indian Institute of Technology Bhubaneswar School of Earth,Ocean&Climate Sciences　講師
2021/09/27　羽村市武蔵野小学校　講師
2021/05/17　Nanjing University of Information and Science and Technology（NUIST）　講師
2021/05/10-2022/03/31　公益財団法人笹川平和財団　「国連海洋科学の10 年に関する研究会」メンバー
2021/02/25　公益財団法人笹川平和財団　講演者
2020/12/05　東海大学情報理工学部情報科学科　講師
2020/09/17　羽村市立武蔵野小学校　講師
2020/04/03-2020/09/30　日本学術会議事務局　地球惑星科学委員会SCOR分科会SIMSEA小委員会委員
2019/12/14　東海大学情報理工学部情報科学科　講師
2019/06/23　湘南八景自治会　講師
2019/06/08　一般財団法人　環境プランニング学会　講師
2019/04/21-2019/05/05　公益財団法人日本科学技術振興財団　サイエンスカフェ司会
2019/04/01-2021/03/31　日本海洋学会　広報委員
2018/12/01　東海大学　情報理工学部情報科学科　講師
2018/07/25　東京大学大学院新領域創成科学研究科　講師
2018/07/07　葛飾区立花の木小学校　講師
2018/04/03-2020/04/02　日本学術会議事務局　地球惑星科学委員会SCOR分科会SIMSEA小委員会委員
2018/01/01-2019/03/31　日本海洋学会　海洋学会広報委員
2017/12/09　東海大学情報理工学部情報科学科　講師
2017/08/09-2017/10/31　笹川平和財団海洋政策研究所　原稿執筆
2016/09/10　東京都葛飾区立花の木小学校　講師
2016/07/01　慶応義塾大学理工学部　講師
2015/09/05　聖光学院中学校高等学校　出前授業
2014/10/20　神奈川県立西湘高等学校　講師
2014/08/28　神奈川県立西湘高等学校　講師
2014/04/22　学校法人河合塾　紙面企画協力
2014/04/16-2015/03/31　文部科学省　科学技術・学術政策研究所　科学技術動向研究センター　専門調査員

Supervising

Research Student

2021/04/01-2023/03/31

Press

Newspaper

2023/06/23　週刊NY生活　「プリンストン大学を訪問　NJ日本人学校「地球環境の未来」を学ぶ　中等部」
2020/01/16　高知新聞　「話題「風よ吹け」」
2020/01/09　高知新聞　「「宿毛湾好漁　太平洋の渦効果」海洋機構研究　漁獲量予測に期待」
2019/03/12　日刊工業新聞　「気候予測精度が向上　南極海　海氷データ活用」
2016/01/26　朝日小学生新聞
2015/08/06　記者説明会（日比谷セントラルビル）　「異常気象をもたらす気候変動現象～予測と観測の最前線～」
2014/07/09　文部科学省記者クラブ

Radio

2021/09/30　FMヨコハマ　「守ろう！私たちの綺麗な海」
2021/08/04　FMヨコハマ　「守ろう！私たちの綺麗な海」

Internet

2022/11/27　株式会社ニューズピックス　「【新教養】気候変動の鍵は海が握っている」

Other

2014/04/22　河合塾　「東大魅力発見ＢＯＯＫ」