Recent elevation changes on the Lambert-Amery system in East Antarctica from ICESat crossover analysis

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	Recent elevation changes on the Lambert-Amery system in East Antarctica from ICESat crossover analysis
	Shen, Qiang ; Chen, Gang ; E. Dong-Chen ; Zhou, Chun-Xia
刊名	Chinese Journal of Geophysics-Chinese Edition
	2011
期号	8 页码:1983-1989
中文摘要	Mass balance of Antarctic ice sheet remains the largest source of uncertainty in estimation of global sea level change. Depending on our developed procedure on the basis of crossover analysis method, the current short-term rates of elevation change in Lambert-Amery system have been evaluated using ICESat/GLAS altimetry data over the period 2003 similar to 2007 comprising 10 ICESat observation periods. The interannual variability of elevation has been obtained in sub-regions of Lambert-Amery System (LAS), which are defined and calibrated on principle of glacier dynamics, using regression analysis method. We get the new conclusions shown as follows: (1) the elevations are almost increasing in all sub-regions except for AIS sub-region; (2) It is very obvious that there are largely regional variations of elevation in the sub-regions, the largest interannual variability of elevation in AIS and MGLup are -6. 1 cm/a and 6.6 cm/a respectively; (3)Interannual variation of elevation in western LAS is 2 similar to 3 times that of the eastern part. This is the first time to get the series of elevation change in LAS with high-density and high-precision and its interannual variability in the sub-regions are fully analyzed.
原文出处	://WOS:000294516600005
公开日期	2012-04-11
内容类型	期刊论文
源URL	[http://ir.whigg.ac.cn/handle/342008/3237]
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	Shen, Qiang,Chen, Gang,E. Dong-Chen,et al. Recent elevation changes on the Lambert-Amery system in East Antarctica from ICESat crossover analysis[J]. Chinese Journal of Geophysics-Chinese Edition,2011(8):1983-1989.
APA	Shen, Qiang,Chen, Gang,E. Dong-Chen,&Zhou, Chun-Xia.(2011).Recent elevation changes on the Lambert-Amery system in East Antarctica from ICESat crossover analysis.Chinese Journal of Geophysics-Chinese Edition(8),1983-1989.
MLA	Shen, Qiang,et al."Recent elevation changes on the Lambert-Amery system in East Antarctica from ICESat crossover analysis".Chinese Journal of Geophysics-Chinese Edition .8(2011):1983-1989.