中国海洋大学学报（自然科学版）2011，Vol.41Issue(7)：9-16,8.
南极普里兹湾邻近海域海冰生消发展特征分析
The Characteristic of Sea Ice Growth and Melt in the Prydz Bay Region, Antarctica
摘要
Abstract
The spatial distribution character of sea ice in different seasons divided by 6 periods in the Pry-dz Bay were studied, by using high resolution ice concentration data from 2003 to 2008 year, which provided by the National Snow and Ice Data Center, at the same time its causation was analyzed according to the bathymetry and circulation of Prydz Bay region. The result indicated that the freezing and thawing stages went through 7 months and 5 months separately, the fastest months of sea ice thawing were Octo-ber and November, mainly from the decrease of sea ice concentration; the fastest months of sea ice freezing were April and June, mainly from the expending of sea ice edge. In the melting period, sea ice had the bidirectional melting character for the existent of Cape Darnley polynyas, Prydz Bay polynyas and Barrier Bay polynyas in the coast of the Prydz Bay, namely sea ice melt from north to south in abyssal ocean, and melt from north to south in the coast region of Prydz Bay. There were persistent ice tongues north of Cape Darnley and Four Ladies Bank, and the low sea ice concentration region between them was corresponding to the path of warm water intruding to the Prydz Bay. The Antarctic Circumpolar Current turned north when flowing by the Kerguelen Plateau, and made sea ice edge more north in winter time than that in the same longitude, which could reach 57°S. The divergent surface flow field of the Antarctic Divergence and upwelling warm current could restrict sea ice freezing and congregating, and formed low sea ice concentration region.关键词
海冰/海冰生消发展/普里兹湾/南极Key words
sea ice/ sea ice growth and melt/ the Prydz Bay/ Antarctica分类
海洋科学引用本文复制引用
郑少军,史久新..南极普里兹湾邻近海域海冰生消发展特征分析[J].中国海洋大学学报（自然科学版）,2011,41(7):9-16,8.基金项目
国家自然科学基金项目(40676011) （40676011）
国家科技支撑计划项目(2006BAB18B02) （2006BAB18B02）
教育部新世纪优秀人才支持计划项目(NCET-10-0720)资助 （NCET-10-0720）
