第 226回 大気海洋物理学・気候力学セミナー のおしらせ
日 時： 1月 19日(木) 午前 09:30
場 所： 低温科学研究所 3階 講堂
発表者： 深町 康（低温科学研究所/准教授)
\\Speaker: Yasushi Fukamachi, ILTS/Associate Professor
題 目： 南極海ケープダンレーポリニヤにおける海氷と海洋の係留観測 Title : Mooring measurement of sea ice and ocean in the Cape Darnley Polynya, Antarctica
南極海ケープダンレーポリニヤにおける海氷と海洋の係留観測 \\Mooring measurement of sea ice and ocean in the Cape Darnley Polynya, Antarctica \\(深町 康 \\Yasushi Fukamachi）発表要旨 :Recent remote-sensing, hydrographic and mooring studies have shown that the Cape Darnley Polynya (CDP) located northwest of the Amery Ice Shelf is an active formation region of Antarctic Bottom Water. To reveal production of sea ice and high salinity shelf water, two moorings were deployed for a year in Feburary 2010 on the continental shelf within the Cape Darnley Polynya. The experiment yielded sea-ice thickness data for the first time in an Antarcticcoastal polynya as well as velocity and water property data. In this seminar, the preliminary results from the experiment will be presented. The salinity data during winter and spring reached quite high values over 34.8 at the both moorings, but their temporal variability is different presumably due to the different locations between the inner shelf and shelf break. The ice-draft data clearly show the existence of a coastal polynya and also show reasonable agreement with the estimated sea-ice thickness from the satellite data.