中国海洋大学学报（自然科学版）2024，Vol.54Issue(5)：1-9,9.DOI:10.16441/j.cnki.hdxb.20220480
南极阿蒙森海冰间湖的时空变化及其影响因素
Temporal and Spatial Variation of the Amundsen Sea Polynya,Antarctica and Its Impact Factors
摘要
Abstract
Using the data of thin ice thickness and ice production rate obtained from the record of satel-lite passive microwave observations,we examined the spatial and temporal characteristics of Amundsen Sea Polynya(ASP)throughout winter(April-October)during 2003-2010 and 2013-2020.Combined with wind speed and air temperature data from atmospheric reanalysis data,the factors effect on ASP's change were further explored.Amundsen sea polynya,as an inverse L-shape,is located in the front of the ice shelf,and on the western side of the Thwaites Fast-ice Tongue(TFT).It means that it develops from the west side of TFT to the west under the action of wind,and develops northward from the coast of the Dotson Ice Shelf(DIS).In addition,ASP is almost an area of open water during April-October of the Antarctic winter half year,but its area and ice production showed significant changes on synoptic scale.Meanwhile,there was a good correlation between ASP and the overhead wind speed.The results of this study indicated that the east wind component dominated t ASP's area by regulating the sea ice transport in the polynya.Carrying the dry cold air from the coastal land of DIS,the south wind compo-nent aggravated the heat loss of ASP's surface,which is the determining factor for the increase of ice production rate of the polynya.关键词
阿蒙森海冰间湖/薄冰厚度数据/产冰速率/冬季/风场/南极Key words
Amundsen Sea Polynya/thin ice thickness/ice production rate/winter/wind/Antarctica分类
海洋科学引用本文复制引用
帅洪涛,侯赛赛,谢春虎,史久新..南极阿蒙森海冰间湖的时空变化及其影响因素[J].中国海洋大学学报（自然科学版）,2024,54(5):1-9,9.基金项目
国家自然科学基金项目(42376256) （42376256）
国家海洋局极地考察办公室项目(IRASCC2020-2022) （IRASCC2020-2022）
国家重点研究发展计划项目(2018YFA0605701)资助 Supported by the National Natural Science Foundation of China(42376256) （2018YFA0605701）
the Chinese Arctic and Antarctic Administration(IRAS-CC2020-2022) （IRAS-CC2020-2022）
the National Key Research and Development Program of China(2018YFA0605701) （2018YFA0605701）
