Air-sea interactions with complex oceanographic structure over the marginal seas and their influence on marine ecosystem

2014 Fiscal Year Final Research Report

• Project Area: Multi-scale air-sea interaction under the East-Asian monsoon: A "hot spot" in the climate system
• Project/Area Number: 22106002
• Research Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Kyushu University (2014); Ehime University (2010-2013)
• Principal Investigator: ISOBE Atsuhiko 九州大学, 応用力学研究所, 教授 (00281189)
• Co-Investigator(Kenkyū-buntansha): KAKU Shinu 愛媛大学, 沿岸環境科学研究センター, 教授 (10322273) ; NAKAMURA Hirohiko 鹿児島大学, 水産学部, 准教授 (50284914) ; HIROSE Naoki 九州大学, 応用力学研究所, 教授 (70335983) ; ISHIZAKA Joji 名古屋大学, 地球水循環研究センター, 教授 (40304969) ; KIDA Shinichiro 海洋研究開発機構, アプリケーションラボ, 研究員 (50543229) ; KAKO Shinichiro 鹿児島大学, 工学部, 助教 (60709624)
• Co-Investigator(Renkei-kenkyūsha): NAKAMURA Tomohiro 北海道大学, 低温科学研究所, 講師 (60400008) ; MANDA Atsuyoshi 長崎大学, 水産学部, 准教授 (00343343)
• Project Period (FY): 2010-04-01 – 2015-03-31
• Keywords: 大気海洋相互作用 / 縁辺海 / 沿岸海洋 / 海洋生態系

Outline of Final Research Achievements

It is found that the Kuroshio meander south of the Japan Islands gives fluctuations of extratropical-cyclone paths south of the islands. It is found that winter cooling over the shallow coastal areas in the East China Sea shows a negative feedback process via sea surface pressure (hence, wind) changes caused by low SST. It is found that surface winds over the Seto Inland Sea oscillate in accordance with SST changes due to the tidal mixing at spring and neap tides, and that SST changes also influence on sea and land breeze over the coastal areas. It is therefore concluded that oceanic processes on regional and coastal scales can indeed alter atmospheric processes, and that two-way processes are likely to be accomplished under appropriate conditions. In addition, the accomplishment of coupling between atmosphere, ocean, and biosphere is likely to occur; we found that SST and extratropical cyclone activities are altered by spring phytoplankton boom over the Sea of Japan.

Free Research Field

海洋物理学