气候变化领域集成服务门户(CCPortal): Accelerated glacier mass loss (2011-2016) over the Puruogangri ice field in the inner Tibetan Plateau revealed by bistatic InSAR measurements

CCPortal

DOI	10.1016/j.rse.2019.111241
	Accelerated glacier mass loss (2011-2016) over the Puruogangri ice field in the inner Tibetan Plateau revealed by bistatic InSAR measurements
	Liu, Lin; Jiang, Liming; Jiang, Houjun; Wang, Hansheng; Ma, Ning; Xu, Houze
通讯作者	Jiang, LM (通讯作者)
发表日期	2019
ISSN	0034-4257
EISSN	1879-0704
卷号	231
英文摘要	The temporal variation of glacier mass balance during recent years remains poorly known for the mountain glaciers in the inner Tibetan Plateau (ITP), due to the lack of field measurements. In this study, we retrieved the annual glacier mass balance of the Puruogangri ice field, which is the largest modern ice mass in the ITP, by differencing multi-temporal digital elevation models (DEMs) generated with five pairs of TanDEM-X bistatic interferometric synthetic aperture radar (InSAR) images acquired between April 2011 and January 2016. We compared the TanDEM-X DEMs in January and April 2012 to estimate the X-band radar penetration depth difference (0.61 +/- 0.06 m), which enabled systematic bias correction in the estimation of annual glacier mass balance. The observed mass balance reveals a glacier mass gain of 0.44 +/- 0.10 m w.e. yr(-1) in 2011-12, which was followed by accelerated glacier mass loss in 2012-16. Glacier mass balances of -0.13 +/- 0.03, -0.34 +/- 0.06, and -0.52 +/- 0.10 m w.e. yr(-1) were estimated for the periods of 2012-13, 2013-14, and 2014-16, respectively. This accelerating trend of glacier mass loss is likely caused by the continuous decrease in annual precipitation, according to the climate data recorded by adjacent meteorological stations. This study demonstrates that repeated bistatic InSAR measurement is a promising method for monitoring glacier elevation change and mass balance at regular intervals.
关键词	TANDEM-X KARAKORAM REGION WESTERN HIMALAYA ELEVATION MODELS NEPAL HIMALAYA BALANCE CAP VARIABILITY MOUNTAINS KH-9
英文关键词	Annual glacier mass balance; TanDEM-X bistatic InSAR; X-band radar penetration; Puruogangri ice field; Inner Tibetan Plateau
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:000484643900029
来源期刊	REMOTE SENSING OF ENVIRONMENT
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259567
推荐引用方式 GB/T 7714	Liu, Lin,Jiang, Liming,Jiang, Houjun,et al. Accelerated glacier mass loss (2011-2016) over the Puruogangri ice field in the inner Tibetan Plateau revealed by bistatic InSAR measurements[J]. 中国科学院青藏高原研究所,2019,231.
APA	Liu, Lin,Jiang, Liming,Jiang, Houjun,Wang, Hansheng,Ma, Ning,&Xu, Houze.(2019).Accelerated glacier mass loss (2011-2016) over the Puruogangri ice field in the inner Tibetan Plateau revealed by bistatic InSAR measurements.REMOTE SENSING OF ENVIRONMENT,231.
MLA	Liu, Lin,et al."Accelerated glacier mass loss (2011-2016) over the Puruogangri ice field in the inner Tibetan Plateau revealed by bistatic InSAR measurements".REMOTE SENSING OF ENVIRONMENT 231(2019).