Study on sea surface current variability in the East China and Yellow Seas for understanding of material transport from Chinese coast to the Japan Sea

2012 Fiscal Year Final Research Report

• Project/Area Number: 22310009
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Environmental dynamic analysis
• Research Institution: Nagoya University
• Principal Investigator: MORIMOTO Akihiko 名古屋大学, 地球水循環研究センター, 准教授 (80301323)
• Co-Investigator(Kenkyū-buntansha): TAKIKAWA Tetsutaro 水産大学校, 海洋生産管理学科, 講師 (10371741)
• Co-Investigator(Renkei-kenkyūsha): GUO Xinyu 愛媛大学, 沿岸環境科学研究センター, 准教授 (10322273)
• Project Period (FY): 2010 – 2012
• Keywords: 物質輸送 / 東シナ海 / 日本海 / 衛星高度計 / 表層流変動 / 潮汐モデル

Research Abstract

We investigated material transport from the East China Sea to the Japan Sea based on field observation, and spatial and temporal variation in sea surface current field using satellite altimetry data. It was found that interannual variation in material transport from the East China Sea to the Japan Sea was quite large, and the variability was caused by the change of current field in the East China and Yellow Seas. We revealed characteristics of sea surface current variation in the East China and Japan Seas using satellite altimetry data. Moreover, we developed a tidal assimilation model in order to improve the accuracy of the altimetry data in the East China and Yellow Seas.

Research Products

• [Journal Article] Mean field and annual variation of surface flow in the East China Sea as revealed by combining satellite altimeter and drifter data (2013)
  • Author(s): Takahashi, D., Morimoto, A.
  • Journal Title: Progress in Oceanography Volume: 111 Pages: 125-139
  • Peer Reviewed
• [Journal Article] Seasonal variation of counterclockwise eddy downstream of Tsushima Islands (2012)
  • Author(s): Takikawa, T., Onitsuka, G., Fukudome, K., Yoon, J.-H., Morimoto, A.
  • Journal Title: Progress in Oceanography Volume: 105 Pages: 30-37
  • Peer Reviewed
• [Journal Article] Interannual variations in material transports through the eastern channel of the Tsushima/Korea Straits (2012)
  • Author(s): Morimoto, A., Watanabe, A., Onitsuka, G., Takikawa, T., Moku, M., Yanagi, T.
  • Journal Title: Progress in Oceanography Volume: 105 Pages: 38-46
  • Peer Reviewed
• [Journal Article] Green's function approach for calibrating tides in a circulation model for the East Asian marginal seas (2011)
  • Author(s): Moon, J.H., Hirose, N., Morimoto, A.
  • Journal Title: Journal of Oceanography Volume: 68 Pages: 345-354
  • Peer Reviewed
• [Journal Article] Cyclonic eddy detected in downstream of Tsushima Islands in November 2007 (2011)
  • Author(s): Takikawa, T., Onitsuka, G., Fukudome, K., Yoon, J.-H., Morimoto, A., Moku, M.., Watanabe, A.
  • Journal Title: Estuary and Coasts Volume: 34 Pages: 775-784
  • Peer Reviewed
• [Presentation] 東シナ海・黄海における高精度潮汐同化モデルの開発 (2013)
  • Author(s): 岩清水徳堂、 森本昭彦、 郭新宇、 王玉成、滝川哲太郎
  • Organizer: 2013 年度日本海洋学会春季大会
  • Place of Presentation: 東京海洋大学
  • Year and Date: 20130000
• [Presentation] 対馬海峡の水塊分布と水平物質輸送量 (2012)
  • Author(s): 森本昭彦、 滝川哲太郎、 伊藤雅、 後藤暁、千手智晴、鬼塚剛、渡邉敦、杢雅利
  • Organizer: 2012 年度九州沖縄地区合同シンポジウム「対馬海峡」
  • Place of Presentation: 水産大学校
  • Year and Date: 20120000
• [Presentation] Mean field and annual variation of surface flow in the East China Sea as revealed by combining satellite altimeter and drifter data (2012)
  • Author(s): Takahashi, D., Morimoto, A.
  • Organizer: OSTST 2012
  • Place of Presentation: Venice, Italy
  • Year and Date: 20120000
• [Presentation] ADCP 定点観測と人工衛星海面高度偏差から見積もられた潮流 (2012)
  • Author(s): 滝川哲太郎、三輪洋介、森本昭彦、吉川裕
  • Organizer: 2012 年度日本海洋学会秋季大会
  • Place of Presentation: 東海大学
  • Year and Date: 20120000
• [Presentation] Tsushima Warm Current paths in the southwestern part of the Japan/East Sea (2012)
  • Author(s): Ito, M., Morimoto, A., Watanabe, T., Katoh, O.
  • Organizer: The 16th Pacific-Asian Marginal Seas Meeting
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 20120000
• [Presentation] 対馬海峡西水道底層における低温・高濁度水 (2012)
  • Author(s): 滝川哲太郎、練合千夏、森本昭彦、宮地邦明
  • Organizer: 2011 年度日本海洋学会春季大会
  • Place of Presentation: 東京大学
  • Year and Date: 20120000
• [Presentation] Green's function approach for calibrating tides in a circulation model for the East Asian marginal seas (2011)
  • Author(s): Moon, J.-H., Hirose, N., Morimoto, A.
  • Organizer: 日本海及び日本周辺海域の海況モニタリングと波浪計測に関する研究集会
  • Place of Presentation: 九州大学
  • Year and Date: 20110000
• [Presentation] Variations in Current Path of the Tsushima Warm Current revealed by Altimetry and drifting Buoy Data (2011)
  • Author(s): Morimoto, A., Ito, M., Watanabe, T., Katoh, O.
  • Organizer: 4th Coastal Altimetry Workshop
  • Place of Presentation: Porto, Portugal
  • Year and Date: 20110000