Direct measurement of glacier thinning on the southern Tibetan Plateau (Gurenhekou, Kangwure and Naimona’Nyi glaciers)
| Autor: | Lide Tian, Tandong Yao, LingLong Ma, Jibiao Zong, DY (Zhu Dayun) Zhu, Jianchen Pu |
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| Rok vydání: | 2014 |
| Předmět: |
Glacier ice accumulation
geography Glacier terminus geography.geographical_feature_category 010504 meteorology & atmospheric sciences Tidewater glacier cycle Accumulation zone Glacier Cirque glacier 010502 geochemistry & geophysics Glacier morphology 01 natural sciences Glacier mass balance Geomorphology Geology 0105 earth and related environmental sciences Earth-Surface Processes |
| Zdroj: | Journal of Glaciology. 60:879-888 |
| ISSN: | 1727-5652 0022-1430 |
| DOI: | 10.3189/2014jog14j022 |
| Popis: | Numerous studies have confirmed the rapid retreat of Tibetan Plateau glaciers in recent decades, and resulting reductions in glacier volume. However, high-resolution determinations of the changes in glacier thickness remain sparse. This paper presents results based on differential GPS measurements to accurately measure glacier thickness change over the past few years. Measurements from the lower part of Gurenhekou glacier show an average thickness change of –3.82 m over a 4 year period. On the lower part of Kangwure glacier we measured an average thickness change of –2.70 m over 3 years. On the upper part of Naimona’Nyi glacier (northern branch), western Himalaya, thickness changed by –1.34 m on average between 2008 and 2010, and –0.87 m between 2010 and 2013. Large temporal changes in thinning rates were found on Naimona’Nyi glacier, due to variations in local precipitation. Our measurements also show variable changes in glacier thickness over different parts of each glacier, with little dependence on elevation. The limited data also show glacier thinning in the accumulation zone. |
| Databáze: | OpenAIRE |
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