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Morphometric Controls on Glacier Mass Balance of the Puruogangri Ice Field, Central Tibetan Plateau

by Lin Liu 1,2, Liming Jiang 1,2,*, Yafei Sun 1,2, Hansheng Wang 1, Chaolu Yi 3,4 and Houtse Hsu 1
1
State Key Laboratory of Geodesy and Earth’s Dynamics, Institute of Geodesy and Geophysics, Chinese Academy of Sciences, 340 XuDong Rd, Wuhan 430077, China
2
University of Chinese Academy of Sciences, 19A Yuquan Rd, Beijing 100049, China
3
Institute of Tibetan Plateau Research, Chinese Academy of Sciences, 16 Lincui Rd, Beijing 100101, China
4
Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, 16 Lincui Rd, Beijing 100101, China
*
Author to whom correspondence should be addressed.
Academic Editor: Daene C. McKinney
Water 2016, 8(11), 496; https://doi.org/10.3390/w8110496
Received: 30 July 2016 / Revised: 10 October 2016 / Accepted: 25 October 2016 / Published: 1 November 2016
(This article belongs to the Special Issue Global Warming Impacts on Mountain Glaciers and Communities)
Evaluating the impacts of climatic changes and morphometric features on glacier mass balance is crucial to providing insight into glacier changes and their effects on regional water resources and ecosystems. Here, we presented an evaluation of morphometric effects on the glacier mass balances of the Puruogangri ice field (PIF) on the Tibetan Plateau. A clear spatial variability of glacier mass balances, ranging from −0.035 to +0.019 m·w.e.·year−1, was estimated by comparing the TanDEM-X DEM (2012) with the SRTM-X DEM (2000). In general, the observed glacier mass changes were consistent with our fieldwork investigations. Furthermore, by applying the method of linear regression analysis, we found that the mass changes of individual glaciers on the PIF were mainly dominated by the mean altitude (R = 0.84, p < 0.001), however, they were statistically independent of glacier size, aspect, and surface velocity. At a local scale (grid size of 10 × 10 pixels), apart from the factor of altitude, surface velocity was correlated with glacier mass change. View Full-Text
Keywords: morphometric controls; glacier mass balance; Puruogangri ice field; Tibetan Plateau morphometric controls; glacier mass balance; Puruogangri ice field; Tibetan Plateau
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Liu, L.; Jiang, L.; Sun, Y.; Wang, H.; Yi, C.; Hsu, H. Morphometric Controls on Glacier Mass Balance of the Puruogangri Ice Field, Central Tibetan Plateau. Water 2016, 8, 496.

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