Changes in glacier volume on Mt. Gongga, southeastern Tibetan Plateau, based on the analysis of multi-temporal DEMs from 1966 to 2015
ABSTRACT The accelerated retreat of glaciers and the reduction of glacier ice reserves caused by climate change can significantly affect regional water resources and hydrological cycles. Changes in glacier thickness are among the key indicators that reflect this process. We analyzed changes observed...
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Online Access: | http://dx.doi.org/10.1017/jog.2019.14 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143019000145 |
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crcambridgeupr:10.1017/jog.2019.14 2024-06-23T07:54:15+00:00 Changes in glacier volume on Mt. Gongga, southeastern Tibetan Plateau, based on the analysis of multi-temporal DEMs from 1966 to 2015 CAO, BO PAN, BAOTIAN GUAN, WEIJIN WEN, ZHENLING WANG, JIE 2019 http://dx.doi.org/10.1017/jog.2019.14 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143019000145 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by-nc-nd/4.0/ Journal of Glaciology volume 65, issue 251, page 366-375 ISSN 0022-1430 1727-5652 journal-article 2019 crcambridgeupr https://doi.org/10.1017/jog.2019.14 2024-05-29T08:09:47Z ABSTRACT The accelerated retreat of glaciers and the reduction of glacier ice reserves caused by climate change can significantly affect regional water resources and hydrological cycles. Changes in glacier thickness are among the key indicators that reflect this process. We analyzed changes observed in the elevation of glacier surfaces in the Gongga Mountains (GGM) using multi-temporal Digital Elevation Models (DEMs) derived from topographic maps, SRTM, ICESat and ZY-3 data. The results showed that the mean rate of change in glacier surface altitude in the GGM was ~−26.7 ± 2.03 m (0.54 ± 0.04 m a −1 ) between 1966 and 2015. The mean melt rates differed over different time periods, latterly showing an accelerating trend. As a general rule, glaciers appear to be losing more volume at lower than at higher elevations. Further analysis of these results suggests that supraglacial debris coverage in the GGM promotes higher rates of mass loss. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 65 251 366 375 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
ABSTRACT The accelerated retreat of glaciers and the reduction of glacier ice reserves caused by climate change can significantly affect regional water resources and hydrological cycles. Changes in glacier thickness are among the key indicators that reflect this process. We analyzed changes observed in the elevation of glacier surfaces in the Gongga Mountains (GGM) using multi-temporal Digital Elevation Models (DEMs) derived from topographic maps, SRTM, ICESat and ZY-3 data. The results showed that the mean rate of change in glacier surface altitude in the GGM was ~−26.7 ± 2.03 m (0.54 ± 0.04 m a −1 ) between 1966 and 2015. The mean melt rates differed over different time periods, latterly showing an accelerating trend. As a general rule, glaciers appear to be losing more volume at lower than at higher elevations. Further analysis of these results suggests that supraglacial debris coverage in the GGM promotes higher rates of mass loss. |
format |
Article in Journal/Newspaper |
author |
CAO, BO PAN, BAOTIAN GUAN, WEIJIN WEN, ZHENLING WANG, JIE |
spellingShingle |
CAO, BO PAN, BAOTIAN GUAN, WEIJIN WEN, ZHENLING WANG, JIE Changes in glacier volume on Mt. Gongga, southeastern Tibetan Plateau, based on the analysis of multi-temporal DEMs from 1966 to 2015 |
author_facet |
CAO, BO PAN, BAOTIAN GUAN, WEIJIN WEN, ZHENLING WANG, JIE |
author_sort |
CAO, BO |
title |
Changes in glacier volume on Mt. Gongga, southeastern Tibetan Plateau, based on the analysis of multi-temporal DEMs from 1966 to 2015 |
title_short |
Changes in glacier volume on Mt. Gongga, southeastern Tibetan Plateau, based on the analysis of multi-temporal DEMs from 1966 to 2015 |
title_full |
Changes in glacier volume on Mt. Gongga, southeastern Tibetan Plateau, based on the analysis of multi-temporal DEMs from 1966 to 2015 |
title_fullStr |
Changes in glacier volume on Mt. Gongga, southeastern Tibetan Plateau, based on the analysis of multi-temporal DEMs from 1966 to 2015 |
title_full_unstemmed |
Changes in glacier volume on Mt. Gongga, southeastern Tibetan Plateau, based on the analysis of multi-temporal DEMs from 1966 to 2015 |
title_sort |
changes in glacier volume on mt. gongga, southeastern tibetan plateau, based on the analysis of multi-temporal dems from 1966 to 2015 |
publisher |
Cambridge University Press (CUP) |
publishDate |
2019 |
url |
http://dx.doi.org/10.1017/jog.2019.14 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143019000145 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 65, issue 251, page 366-375 ISSN 0022-1430 1727-5652 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1017/jog.2019.14 |
container_title |
Journal of Glaciology |
container_volume |
65 |
container_issue |
251 |
container_start_page |
366 |
op_container_end_page |
375 |
_version_ |
1802646349315833856 |