Slight glacier mass loss in the Karakoram region during the 1970s to 2000 revealed by KH-9 images and SRTM DEM
An anomalously slight glacier mass gain during 2000 to the 2010s has recently been reported in the Karakoram region. However, to date, no investigations of the region-wide glacier mass balance in the Karakoram prior to 2000 have been reported, leaving a knowledge gap for assessing glacier responses...
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2017-04-01
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| Series: | Journal of Glaciology |
| Subjects: | |
| Online Access: | https://www.cambridge.org/core/product/identifier/S0022143016001428/type/journal_article |
| _version_ | 1811155869387194368 |
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| author | YUSHAN ZHOU ZHIWEI LI JIA LI |
| author_facet | YUSHAN ZHOU ZHIWEI LI JIA LI |
| author_sort | YUSHAN ZHOU |
| collection | DOAJ |
| description | An anomalously slight glacier mass gain during 2000 to the 2010s has recently been reported in the Karakoram region. However, to date, no investigations of the region-wide glacier mass balance in the Karakoram prior to 2000 have been reported, leaving a knowledge gap for assessing glacier responses to climate change. We calculated elevation and mass change using DEMs generated from KH-9 images acquired during 1973–1980 and the 1 arc-second SRTM DEM. We find a slight mass loss of −0.09 ± 0.03 m w.e. a−1 (12 366 km2) for 1973–2000, which is less negative than the global average rate for 1971–2009 (−0.31 ± 0.19 m w.e. a−1). Within the Karakoram, the glacier change patterns are spatially and temporally heterogeneous. In particular, a nearly stable state in the central Karakoram (−0.04 ± 0.05 m w.e. a−1 during the period 1974–2000) implies that the Karakoram anomaly dates back to the 1970s. Combined with the previous studies, we conclude that the Karakoram glaciers as a whole were in a nearly balanced state during the 1970s to the 2010s. |
| first_indexed | 2024-04-10T04:41:53Z |
| format | Article |
| id | doaj.art-81c7f8421593456d96675e220ed6e29c |
| institution | Directory Open Access Journal |
| issn | 0022-1430 1727-5652 |
| language | English |
| last_indexed | 2024-04-10T04:41:53Z |
| publishDate | 2017-04-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Journal of Glaciology |
| spelling | doaj.art-81c7f8421593456d96675e220ed6e29c2023-03-09T12:40:20ZengCambridge University PressJournal of Glaciology0022-14301727-56522017-04-016333134210.1017/jog.2016.142Slight glacier mass loss in the Karakoram region during the 1970s to 2000 revealed by KH-9 images and SRTM DEMYUSHAN ZHOU0ZHIWEI LI1JIA LI2School of Geosciences and Info-Physics, Central South University, Changsha 410083, Hunan, ChinaSchool of Geosciences and Info-Physics, Central South University, Changsha 410083, Hunan, ChinaSchool of Geosciences and Info-Physics, Central South University, Changsha 410083, Hunan, ChinaAn anomalously slight glacier mass gain during 2000 to the 2010s has recently been reported in the Karakoram region. However, to date, no investigations of the region-wide glacier mass balance in the Karakoram prior to 2000 have been reported, leaving a knowledge gap for assessing glacier responses to climate change. We calculated elevation and mass change using DEMs generated from KH-9 images acquired during 1973–1980 and the 1 arc-second SRTM DEM. We find a slight mass loss of −0.09 ± 0.03 m w.e. a−1 (12 366 km2) for 1973–2000, which is less negative than the global average rate for 1971–2009 (−0.31 ± 0.19 m w.e. a−1). Within the Karakoram, the glacier change patterns are spatially and temporally heterogeneous. In particular, a nearly stable state in the central Karakoram (−0.04 ± 0.05 m w.e. a−1 during the period 1974–2000) implies that the Karakoram anomaly dates back to the 1970s. Combined with the previous studies, we conclude that the Karakoram glaciers as a whole were in a nearly balanced state during the 1970s to the 2010s.https://www.cambridge.org/core/product/identifier/S0022143016001428/type/journal_articleglacier mass balanceremote sensingsurface mass budget |
| spellingShingle | YUSHAN ZHOU ZHIWEI LI JIA LI Slight glacier mass loss in the Karakoram region during the 1970s to 2000 revealed by KH-9 images and SRTM DEM Journal of Glaciology glacier mass balance remote sensing surface mass budget |
| title | Slight glacier mass loss in the Karakoram region during the 1970s to 2000 revealed by KH-9 images and SRTM DEM |
| title_full | Slight glacier mass loss in the Karakoram region during the 1970s to 2000 revealed by KH-9 images and SRTM DEM |
| title_fullStr | Slight glacier mass loss in the Karakoram region during the 1970s to 2000 revealed by KH-9 images and SRTM DEM |
| title_full_unstemmed | Slight glacier mass loss in the Karakoram region during the 1970s to 2000 revealed by KH-9 images and SRTM DEM |
| title_short | Slight glacier mass loss in the Karakoram region during the 1970s to 2000 revealed by KH-9 images and SRTM DEM |
| title_sort | slight glacier mass loss in the karakoram region during the 1970s to 2000 revealed by kh 9 images and srtm dem |
| topic | glacier mass balance remote sensing surface mass budget |
| url | https://www.cambridge.org/core/product/identifier/S0022143016001428/type/journal_article |
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