气候变化领域集成服务门户(CCPortal): Glacier elevation changes (2012-2016) of the Puruogangri Ice Field on the Tibetan Plateau derived from bi-temporal TanDEM-X InSAR data

CCPortal

DOI	10.1080/01431161.2016.1246777
	Glacier elevation changes (2012-2016) of the Puruogangri Ice Field on the Tibetan Plateau derived from bi-temporal TanDEM-X InSAR data
	Liu, Lin; Jiang, Liming; Sun, Yafei; Yi, Chaolu; Wang, Hansheng; Hsu, Houtse
通讯作者	Jiang, LM (通讯作者)
发表日期	2016
ISSN	0143-1161
EISSN	1366-5901
起始页码	5687
结束页码	5707
卷号	37 期号:24
英文摘要	This study aims to evaluate the potential of TerraSAR-X (TSX) add-on for Digital Elevation Measurement (TanDEM-X) bi-static synthetic aperture radar (SAR) data sets for the retrieval of glacier digital elevation models (DEMs) and elevation changes over mountain regions. We exploited two pairs of TanDEM-X SAR data sets acquired in 2012 and 2016 over the Puruogangri Ice Field (PIF), which is the largest modern glacier on the Tibetan Plateau (TP). Two fine-detail and high-precision DEMs for 2012 and 2016 over the PIF were generated by differential interferometric processing, and were validated against height measurements from global positioning system (GPS) and Ice, Cloud, and land Elevation Satellite (ICESat) altimetry, yielding a vertical accuracy of 1.91 +/- 0.76 m and 1.69 +/- 0.83 m, respectively. The elevation changes were derived by differencing the bi-temporal TanDEM-X DEMs and revealed predominant glacier surface thinning on the PIF. An annual surface thinning rate of -0.317 +/- 0.027 m year(-1) was estimated in the period 2012-2016, which is much larger than the estimate of -0.049 +/- 0.200 m year(-1) for the period 2000-2012 reported in previous studies. This accelerating trend of glacier surface thinning might be attributable to the continued increase in summer temperature since the 1980s and decrease in annual precipitation between two periods of investigation. This study demonstrates that comparison of the bi-temporal TanDEM-X DEMs is an efficient method for accurate and detailed retrieval of the latest surface elevation changes of mountain glaciers.
关键词	MASS-LOSS RADAR INTERFEROMETRY CLIMATE-CHANGE SATELLITE HIMALAYA CALIBRATION SCENARIOS BALANCES NEPAL COAST
语种	英语
WOS研究方向	Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:000388599500001
来源期刊	INTERNATIONAL JOURNAL OF REMOTE SENSING
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/258683
推荐引用方式 GB/T 7714	Liu, Lin,Jiang, Liming,Sun, Yafei,et al. Glacier elevation changes (2012-2016) of the Puruogangri Ice Field on the Tibetan Plateau derived from bi-temporal TanDEM-X InSAR data[J]. 中国科学院青藏高原研究所,2016,37(24).
APA	Liu, Lin,Jiang, Liming,Sun, Yafei,Yi, Chaolu,Wang, Hansheng,&Hsu, Houtse.(2016).Glacier elevation changes (2012-2016) of the Puruogangri Ice Field on the Tibetan Plateau derived from bi-temporal TanDEM-X InSAR data.INTERNATIONAL JOURNAL OF REMOTE SENSING,37(24).
MLA	Liu, Lin,et al."Glacier elevation changes (2012-2016) of the Puruogangri Ice Field on the Tibetan Plateau derived from bi-temporal TanDEM-X InSAR data".INTERNATIONAL JOURNAL OF REMOTE SENSING 37.24(2016).