极地研究2017，Vol.29Issue(3)：390-398,9.DOI:10.13679/j.jdyj.2017.3.390
基于Elmer/Ice冰盖模式的南极Gamburtsev山脉Lambert冰流区域的数值模拟研究
NUMERICAL SIMULATIONS OF EAST ANTARCTIC ICE SHEET BASED ON THE ELMER/ICE MODEL
摘要
Abstract
Within the context of global warming, the thickness of the East Antarctic ice sheet has increased ac-cording to recent observations. However, the lack of observations means it is difficult to perform detailed research on the dynamics and thermodynamics of the ice sheet. The section from Dome A to the Zhongshan station, which is an important section of the International Trans-Antarctic Scientific Expedition, includes many important research sites, e.g., the upstream of the Lambert Glacier, the Gamburtsev Mountains, and Dome A. This study used a three-dimensional finite element model to obtain the inland velocity and tem-perature fields of the ice sheet. It was found that the modeled and observational data were identical. The bottom temperature of most parts of the ice sheet within this area has reached the pressure melting point. The velocity of the inland ice sheet is small. Near the ice shelf, the horizontal velocity increases abruptly, while the vertical velocity changes only where the bottom morphology changes rapidly. The prospects for further application of the Elmer/Ice model and areas requiring improvement are discussed.关键词
有限元算法/Elmer/Ice模式/南极冰盖/冰盖内部温度/冰流场Key words
finite element algorithm/Elmer/Ice model/Antarctic ice sheet/temperature/velocity field引用本文复制引用
张良甫,唐学远,杨树瑚,徐申远,张云..基于Elmer/Ice冰盖模式的南极Gamburtsev山脉Lambert冰流区域的数值模拟研究[J].极地研究,2017,29(3):390-398,9.基金项目
全球变化研究国家重大科学研究计划(973计划)(2012CB957702和2013CBA01804)、国家自然科学基金(41376192,41376178,41506213,41401489)和上海市自然科学基金(13ZR1445300)资助 （973计划）
