Acceleration of Glacier Mass Loss after 2013 at the Mt. Everest ( Qomo-langma)

• 作者: Andrew HOOPER Gang LI Hui LIN Liming JIANG Qinghua YE Yinyi LIN
• 来源期刊: 测绘学报（英文版）
• 年，卷（期）: 2020,（4）
• 页码范围: 60-69
• 页数: 10页
• 语种: 英文

摘要

Satellite geodesy is capable of observing glacier height changes and most recent studies focus on the decadal scale due to limitations of data acquisition and precision. Glaciers at the Mt. Everest (Qomolangma), locating at the central Himalaya, have been studied from the 1970s to 2015. Here we obtained TerraSAR-X/TanDEM-X images observed in two epochs, a group around 2013 and another in 2017. Together with SRTM observed in 2000, we derived geodetic glacier mass balance between 2000 and 2013 and 2013 and 2017. We proposed two InSAR procedures for deriving the second period, which yields with basically identical results of geodetic glacier mass balance. The differencing between DEMs derived by TerraSAR-X/TanDEM-X shows better precision than that between TerraSAR-X/TanDEM-X formed DEM and SRTM, and it can capable of providing geodetic glacier mass balance at a sub-decadal scale. Glaciers at the Mt. Everest ( Qomolangma) and its surroundings present obvious speeding up in mass loss rates before and after 2013 for both the Chinese and the Nepalese sides. The previous obtained spatial heterogeneous pattern for glacier downwasting between 2000 and 2013 generally kept the same after 2013. Glaciers with lacustrine terminus present the most rapid lost rates.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	Gang LI	中国科学院测量与地球物理研究所	2	0	0.0	0.0
2	Hui LIN	中国科学院测量与地球物理研究所	1	0	0.0	0.0
3	Qinghua YE	中国科学院测量与地球物理研究所	1	0	0.0	0.0
4	Liming JIANG	中国科学院测量与地球物理研究所	1	0	0.0	0.0
5	Andrew HOOPER	中国科学院测量与地球物理研究所	1	0	0.0	0.0
6	Yinyi LIN	中国科学院测量与地球物理研究所	1	0	0.0	0.0