极地研究2017，Vol.29Issue(1)：163-171,9.DOI:10.13679/j.jdyj.2017.1.163
2002—2011年南极海冰变化的遥感分析
ANALYSIS ON SPATIOTEMPORAL VARIATIONS OF ANTARCTIC SEA ICE DURING 2002—2011
摘要
Abstract
Based on daily Antarctic sea ice concentration data acquired by AMSR-E during 2002—2011, this study calculated the extent and area of sea ice and analyzed the spatiotemporal characteristics of its variability over different timescales. The results revealed increases of 3.64% decade–1 in sea ice extent and 3.8% dec-ade–1 in sea ice area. The derived 10-year trend of sea ice for the entire Antarctic sea ice area was signifi-cantly positive, and the year of 2008 experienced the maximum sea ice area. Regionally, increases were found in the Ross Sea, Weddell Sea, and Western Pacific sectors, and small decreases were detected in the Indian Ocean and the Bellingshausen Sea and Amundsen Sea sectors. Seasonally, both sea ice extent and sea ice area in the Antarctic are at a minimum in summer and a maximum in winter. In the same season, the various regions have different ranges of variation in sea ice area. First-year ice is mainly distributed around the Antarctic mainland, except for the Weddell Sea sector, and the trend of sea ice area is generally positive (0.1×106km2·a–1), which is in marked contrast to the decrease in the multiyear ice area of –0.05×106km2·a–1; most multiyear ice is distributed within the Weddell Sea sector. The change of sea ice extent is correlated negatively with temperature.关键词
南极/外缘线/海冰面积/AMSR-E/温度/时空变化Key words
Antarctic/sea ice extent/sea ice area/AMSR-E/temperature/spatiotemporal variation引用本文复制引用
沈校熠,柯长青,张杰..2002—2011年南极海冰变化的遥感分析[J].极地研究,2017,29(1):163-171,9.基金项目
国家自然科学基金(41371391)、高等学校博士学科点专项科研基金(20120091110017)及江苏高校优势学科建设工程项目资助 （41371391）
