Mass change detection in Antarctic ice sheet using ICESat block analysis techniques from 2003 similar to 2008

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	Mass change detection in Antarctic ice sheet using ICESat block analysis techniques from 2003 similar to 2008
	Shi, Hong-Ling ; Lu, Yang ; Du, Zong-Liang ; Jia, Lu-Lu ; Zhang, Zi-Zhan ; Zhou, Chun-Xia
刊名	Chinese Journal of Geophysics-Chinese Edition
	2011
期号	4 页码:958-965
中文摘要	In this paper, the ICESat laser altimetry data is used to obtain an estimate of the mass balance of Antarctic ice sheet from February 2003 to March 2008. The time series of elevation change in Antarctic ice sheet are derived by the block crossover analysis using the ICESat nadir ground track, and the calculation of the campaign basis is discussed. A least square regression of crossover difference is applied to calculate the average elevation change trend and the seasonal cycle, and then the mass changes of Antarctic ice sheet are estimated by combining the elevation change rate with the surface firn density model. The result shows that seasonal cycle signals are obvious in Antarctic ice sheet height changes, and the average annual amplitude is about 2. 21 cm. On the coast of the Antarctica continent, there are significant thinning and thickening, especially near the Amundsen Sea embayment of west Antarctic and Antarctic Peninsula. Considering the influence of GIA (three public GIA models), our best estimate of the mass change in Antarctic ice sheet is about -82 similar to -73Gt/yr. For the ICESat, the ice sheet surface urn density model and the GIA model are the main factors in the mass change estimates.
原文出处	://WOS:000290065400010
公开日期	2012-04-11
内容类型	期刊论文
源URL	[http://ir.whigg.ac.cn/handle/342008/3241]
专题	测量与地球物理研究所_其他_期刊论文
推荐引用方式 GB/T 7714	Shi, Hong-Ling,Lu, Yang,Du, Zong-Liang,et al. Mass change detection in Antarctic ice sheet using ICESat block analysis techniques from 2003 similar to 2008[J]. Chinese Journal of Geophysics-Chinese Edition,2011(4):958-965.
APA	Shi, Hong-Ling,Lu, Yang,Du, Zong-Liang,Jia, Lu-Lu,Zhang, Zi-Zhan,&Zhou, Chun-Xia.(2011).Mass change detection in Antarctic ice sheet using ICESat block analysis techniques from 2003 similar to 2008.Chinese Journal of Geophysics-Chinese Edition(4),958-965.
MLA	Shi, Hong-Ling,et al."Mass change detection in Antarctic ice sheet using ICESat block analysis techniques from 2003 similar to 2008".Chinese Journal of Geophysics-Chinese Edition .4(2011):958-965.