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Applicability of an ultra-long-range terrestrial laser scanner to monitor the mass balance of Muz Taw Glacier, Sawir Mountains, China
Received:June 06, 2017    Click here to download the full text
Citation of this paper:FeiTeng Wang,ChunHai Xu,ZhongQin Li,Muhammad Naveed Anjum,Lin Wang,2018.Applicability of an ultra-long-range terrestrial laser scanner to monitor the mass balance of Muz Taw Glacier, Sawir Mountains, China.Sciences in Cold and Arid Regions,10(1):47~54.
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Author NameAffiliationE-mail
FeiTeng Wang State Key Laboratory of Cryospheric Science/Tien Shan Glaciological Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China  
ChunHai Xu State Key Laboratory of Cryospheric Science/Tien Shan Glaciological Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China;University of Chinese Academy of Sciences, Beijing 100049, China  
ZhongQin Li State Key Laboratory of Cryospheric Science/Tien Shan Glaciological Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China lizq@lzb.ac.cn 
Muhammad Naveed Anjum State Key Laboratory of Cryospheric Science/Tien Shan Glaciological Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China;University of Chinese Academy of Sciences, Beijing 100049, China  
Lin Wang State Key Laboratory of Cryospheric Science/Tien Shan Glaciological Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China  
 
Abstract:Glacier mass balance is a key component of glacier monitoring programs. Information on the mass balance of Sawir Mountains is poor due to a dearth of in-situ measurements. This paper introduces the applicability of an ultra-long-range terrestrial laser scanner (TLS) to monitor the mass balance of Muz Taw Glacier, Sawir Mountains, China. The Riegl VZ®-6000 TLS is exceptionally well-suited for measuring snowy and icy terrain. Here, we use TLS to create repeated high spatiotemporal resolution DEMs, focusing on the annual mass balance (June 2, 2015 to July 25, 2016). According to TLS-derived high spatial resolution point clouds, the front variation (glacier retreat) of Muz Taw Glacier was 9.3 m. The mean geodetic elevation change was 4.55 m at the ablation area. By comparing with glaciological measurements, the glaciological elevation change of individual stakes and the TLS-derived geodetic elevation change of corresponding points matched closely, and the calculated balance was -3.864±0.378 m w.e.. This data indicates that TLS provides accurate results and is therefore suitable to monitor mass balance evolution of Muz Taw Glacier.
keywords:glacier front variation  geodetic mass balance  Riegl VZ®  -6000 terrestrial laser scanner  Muz Taw Glacier  Sawir Mountains
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