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Shimada Koji
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Research Areas 【 display / non-display 】
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Natural Science / Atmospheric and hydrospheric sciences
Papers 【 display / non-display 】
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Sea ice motion vector retrievals from AMSR2 89-GHz data: Validation algorithm with simultaneous multi-channel observations
Eri Yoshizawa, Takashi Kamoshida, Koji Shimada , 2023.01
Journal of Atmospheric and Oceanic Technology
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Observation of Bottom‐Trapped Topographic Rossby Waves on the Shelf Break of the Chukchi Sea
Ahyoung Ku, Young Ho Seung, Chanhyung Jeon, Youngseok Choi, Eri Yoshizawa, Koji Shimada, Kyoung‐Ho Cho, Jae‐Hun Park , 2020.06
Journal of Geophysical Research (Oceans)
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Algorithm for flat first-year ice draft using AMSR2 data in the Arctic Ocean
Yoshizawa Eri, Koji Shimada, Kyoung-Ho Cho , 2018.10
Journal of Atmospheric and Oceanic Technology
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Further evidence of diel vertical migration of copepods under Arctic sea ice during summer
Hyoung Sul La, Koji Shimada, Eun Jin Yang, Kyoung-Ho Cho, Sun-Yong Ha, Jinyoung Jung, Jun-Oh Min, Sung-Ho Kang, Ho Kyung Ha , 2018.03
Marine Ecology Progress Series
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Decorrelation scales for Arctic Ocean hydrography - Part I: Amerasian Basin
Hiroshi Sumata, Frank Kauker, Michael Karcher, Benjamin Rabe, Mary-Louise Timmermans, Axel Behrendt, Rüdiger Gerdes, Ursula Schauer, Koji Shimada, Kyoung-Ho Cho, Takashi Kikuchi , 2018.03
Ocean Science
Books 【 display / non-display 】
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北極海航路ハンドブック実務編(下巻)日本語版
山口一、庄司るり、島田浩二、遠藤小百合、小山仁明、加島勝、森山和基、西城仁、巣籠大司、濱田肖介、松沢孝俊、英浩道、高杉典弘、加藤幸弘、志水康祐、米川佳宏、矢島広樹、松田治、酒井英次、丹下博也、伊崎朋康、小川泰治、大貫伸、水成剛 , 2017.09
海難防止協会 , 第二章 北極海航路の暮らしと労働安全 , 1-258
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気候変動の事典
島田浩二、吉澤枝里 , 2017.09
朝倉書店 , 5.2章 北極海氷からみた気候変化と変動 , 210-213
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北極海航路ハンドブック実務編(上巻)日本語版
山口一、庄司るり、島田浩二、遠藤小百合、小山仁明、北里英昭、森山和基、西城仁、木本弘之、志水康祐、伊崎朋康、木村栄雄、鵜山久、中林茂、鈴木英一、酒井英次、丹下博也、巣籠大司、小川泰治、大貫伸、水成剛 , 2016.09
日本海難防止協会 , 第一章 北極海航路の基礎知識(1. 北極海航路の地理等及び気象・海象に関する基礎知識、2. 海氷に関する基礎知識)p1-p70. , 1-254
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北極海航路ハンドブック
「北極海航路ハンドブック検討委員会」 (順不同) 山口一、島田浩二、榧野純、小山仁明、北里英昭、西城仁、木本弘之、藤原弘道、伊崎朋康、中林茂海、酒井英次、丹下博也、小川泰治、大貫伸、水成剛 , 2015.04
日本海難防止協会 , 以下の部分を担当。その他、随所に写真を提供。 【前篇】北極海航路の基本知識: 2.北極海の地理、3.北極海の気象、4.北極海の海象、5.北極海の氷。 【後編】北極海航海記: 解説13:氷の基礎知識 【氷の形成と発達】、解説14:氷の基礎知識 【氷の密接度】。 , 1-124
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北極通信
島田浩二、山口一、羽角博康 , 2014.10
国立極地研究所 , GRENE北極事業 課題7 , 0-0
Grant-in-Aid for Scientific Research 【 display / non-display 】
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Project Period (FY): 2019/04 - 2023/03 Investigator(s): Koji Shimada
Grant-in-Aid for Scientific Research(C) Principal Investigator 19K12296
We have developed an integrated sea ice thickness estimation algorithm that includes two processes of sea ice thickness growth, "ice formation by freezing" and "rafting and ridging". In order to validate the integrated sea ice thickness estimation algorithm, we compared the in-situ sea ice thickness data of the two mooring systems with the estimated sea ice thickness by the integrated algorithm using only satellite data, and RMSE was 15 cm, and the target sea ice thickness estimation accuracy (<20 cm) was achieved. Using our original sea ice data set, the mechanism of the four-year cycle variation of Arctic sea ice was clarified. In addition, we clarified that sea surface temperature variations in the central region of North Atlantic subarctic gyre were caused by variations of sea ice transport through the Fram Strait from the Arctic Ocean to the North Atlantic Ocean.
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北極海の4年周期海氷変動の解明と、その北大西洋亜寒帯域Cold Spotへの影響
Project Period (FY): 2024/04 - 2027/03 Investigator(s): 島田浩二
Grant-in-Aid for Scientific Research(C) Principal Investigator 24K07133
Lesson Subject 【 display / non-display 】
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Lesson Subject(Undergraduate)
Earth Science
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Experimental Geology
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Introduction to Earth Science Ⅱ
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Oceanographiy Cruise Ⅱ
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Forefront of Oceanographic Studies
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Physical Oceanography Ⅱ
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Lesson Subject(Graduate School)
Global Climate Change
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Oceanic observation cruise
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Shipboard Training for Coastal Oceanography
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Advanced Data Analysis for Ocean Science
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Special Seminar in Ocean Sciences
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Research in Ocean Sciences
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Special Seminar in Oceanographic Observation