极地研究2025，Vol.37Issue(2)：225-236,12.DOI:10.13679/j.jdyj.20230041
西南极多特森—盖茨海槽绕极深层水夏季气候态分布
Climatological distribution of summer Circumpolar Deep Water in the Dotson-Getz Trough,West Antarctica
摘要
Abstract
In West Antarctica,the Circumpolar Deep Water(CDW),which originates from the Antarctic Circum-polar Current,provides a heat source for the Dotson-Getz Trough;however,little is known about its clima-tological distribution.Based on EN4 data,information from the Estimating the Circulation and Climate of the Ocean project(ECCO),and Copernicus Global(1/12)° Oceanic and Sea Ice(GLORYS12)reanalysis data,this study analyzed the austral summer(January)climatology of the CDW in the Dotson-Getz Trough.Results revealed that the depth of the upper boundary of the CDW has considerable zonal variation along the zonal section in the western Amundsen Sea basin,and that the temperature and salinity of the CDW attains values of 1℃and 34.7,respectively.In the along-section of the Dotson-Getz Trough,the depth of the upper boundary of the CDW varies,and the temperature and salinity values of the CDW are generally higher than 0℃and 34.6,respectively.The cross-section of the Dotson-Getz Tough reveals an east-west difference,where the temperature and salinity of the CDW are higher on the eastern side of the trough.关键词
绕极深层水/多特森—盖茨海槽/气候态分布/海洋分析/再分析资料Key words
Circumpolar Deep Water/Dotson-Getz Trough/climatology/ocean analysis/reanalysis引用本文复制引用
张艺杰,何海伦,赵亮,姚洁,李学琪,于璐莎..西南极多特森—盖茨海槽绕极深层水夏季气候态分布[J].极地研究,2025,37(2):225-236,12.基金项目
南极重点海域对气候变化的响应和影响项目(01-01-01B、02-01-02)和卫星海洋环境动力学国家重点实验室资助项目(SOEDZZ2206)资助 （01-01-01B、02-01-02）
