Recent glacier mass balance and area changes in the Kangri Karpo Mountain derived from multi-sources of DEMs and glacier inventories

Wu Kunpeng, Liu Shiyin, Jiang Zongli, Xu Junli, Wei Junfeng, Guo Wanqin
<span title="2017-09-07">2017</span> <i title="Copernicus GmbH"> <a target="_blank" rel="noopener" href="" style="color: black;">The Cryosphere Discussions</a> </i> &nbsp;
Due to the effect of Indian monsoon, the Kangri Karpo Mountain, located in southeast Tibetan Plateau, is the most humid region of Tibetan Plateau, and become one of the most important and concentrated regions with maritime (temperate) glaciers development. Glacier mass loss in Kangri Karpo Mountain is important contributor to global mean sea level rise, and it change runoff distribution, increase risk of glacial lake outburst floods (GLOFs). Because of their difficult accessibility and high
more &raquo; ... r costs, the knowledge of glaciological parameters of glaciers in the Kangri Karpo Mountain is still limited. This study presents glacier elevation changes in the Kangri Karpo Mountain, by utilizing geodetic methods based on digital elevation models (DEM) derived from Topographic Maps (1980), the Shuttle Radar Topography Mission (SRTM) DEM (2000), and TerraSAR-X/TanDEM-X (2014). Glacier area and length changes were derived from Topographical Maps and Landsat TM/ETM+/OLI images between 1980 and 2015. Our results show that the Kangri Karpo Mountain contains 1166 glaciers, with an area of 2048.50&amp;thinsp;±&amp;thinsp;48.65&amp;thinsp;km<sup>2</sup> in 2015. Ice cover in the Kangri Karpo Mountain diminished by 679.51&amp;thinsp;±&amp;thinsp;59.49&amp;thinsp;km<sup>2</sup> (24.9&amp;thinsp;%&amp;thinsp;±&amp;thinsp;2.2&amp;thinsp;%) or 0.71&amp;thinsp;%&amp;thinsp;±&amp;thinsp;0.06&amp;thinsp;%&amp;thinsp;a<sup>-1</sup> from 1980&amp;ndash;2015, however, with nine glaciers in advance from 1980&amp;ndash;2015. Glaciers with area of 788.28&amp;thinsp;km<sup>2</sup> in the region, as derived from DEM differencing, have experienced a mean mass deficit of 0.46&amp;thinsp;±&amp;thinsp;0.08&amp;thinsp;m&amp;thinsp;w.e.&amp;thinsp;a<sup>-1</sup> from 1980&amp;ndash;2014. These glaciers showed slight accelerated shrinkage and significant accelerated mass loss during 2000&amp;ndash;2015 compared to that during 1980&amp;ndash;2000, which is consistent with the tendency of climate warming.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="">doi:10.5194/tc-2017-153</a> <a target="_blank" rel="external noopener" href="">fatcat:ato7f6ukrjcvzl67j6j3dzjy7q</a> </span>
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