Cargando…
Mass Change of Glaciers in Muztag Ata–Kongur Tagh, Eastern Pamir, China from 1971/76 to 2013/14 as Derived from Remote Sensing Data
The assessment of glacier mass budget is crucial for assessing water reserves stored in glaciers. Derived glacier mass changes in the Muztag Ata and Kongur Tagh (MAKT) region in the eastern Pamir, northwestern China, is helpful in improving our knowledge of the dynamics of glaciers under a changing...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2016
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4720423/ https://www.ncbi.nlm.nih.gov/pubmed/26789404 http://dx.doi.org/10.1371/journal.pone.0147327 |
_version_ | 1782411080281096192 |
---|---|
author | Zhang, Zhen Liu, Shiyin Wei, Junfeng Xu, Junli Guo, Wanqin Bao, Weijia Jiang, Zongli |
author_facet | Zhang, Zhen Liu, Shiyin Wei, Junfeng Xu, Junli Guo, Wanqin Bao, Weijia Jiang, Zongli |
author_sort | Zhang, Zhen |
collection | PubMed |
description | The assessment of glacier mass budget is crucial for assessing water reserves stored in glaciers. Derived glacier mass changes in the Muztag Ata and Kongur Tagh (MAKT) region in the eastern Pamir, northwestern China, is helpful in improving our knowledge of the dynamics of glaciers under a changing climate in High Mountain Asia. Here, glacier area and mass changes derived from remote sensing data are investigated for the period 1971/76–2013/14 for glaciers in MAKT. We have used ASTER images (2013/14), Cartosat-1 (2014) and Landsat, SRTM (Shuttle Radar Terrain Mission) digital elevation model (DEM) (2000), topographic maps (1971/76) and the first and second Chinese glacier inventories (CGIs). Our results indicated that the glacier area of MAKT decreased from 1018.3 ± 12.99 km(2) in 1971/76 to 999.2 ± 31.22 km(2) in 2014 (–1.9 ± 0.2%). Weak area shrinkage of glaciers by 2.5 ± 0.5 km(2) (0.2 ± 0.1%) happened after 2000 and the period 2009–2014 even saw a slight expansion by 0.5 ± 0.1 km(2) (0.1 ± 0.0%). The glaciers in this region have experienced an overall loss of –6.99 ± 0.80 km(3) in ice volume or –0.15 ± 0.12 m water equivalent (w.e.) a(–1) from 1971/76 to 2013/14. The mass budget of MAKT was –0.19 ± 0.19 m w.e. a(−1) for the period ~1971/76–1999 and –0.14 ± 0.24 m w.e. a(−1) during 1999–2013/2014. Similar to previous studies, there has been little mass change in the Pamir over recent decades despite such uncertainties. Glacier mass change showed spatial and temporal heterogeneity, with strong mass loss on debris-covered glaciers with an average of –0.32 ± 0.12 m w.e. a(−1) from the 1970s to 2013/14. |
format | Online Article Text |
id | pubmed-4720423 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-47204232016-01-30 Mass Change of Glaciers in Muztag Ata–Kongur Tagh, Eastern Pamir, China from 1971/76 to 2013/14 as Derived from Remote Sensing Data Zhang, Zhen Liu, Shiyin Wei, Junfeng Xu, Junli Guo, Wanqin Bao, Weijia Jiang, Zongli PLoS One Research Article The assessment of glacier mass budget is crucial for assessing water reserves stored in glaciers. Derived glacier mass changes in the Muztag Ata and Kongur Tagh (MAKT) region in the eastern Pamir, northwestern China, is helpful in improving our knowledge of the dynamics of glaciers under a changing climate in High Mountain Asia. Here, glacier area and mass changes derived from remote sensing data are investigated for the period 1971/76–2013/14 for glaciers in MAKT. We have used ASTER images (2013/14), Cartosat-1 (2014) and Landsat, SRTM (Shuttle Radar Terrain Mission) digital elevation model (DEM) (2000), topographic maps (1971/76) and the first and second Chinese glacier inventories (CGIs). Our results indicated that the glacier area of MAKT decreased from 1018.3 ± 12.99 km(2) in 1971/76 to 999.2 ± 31.22 km(2) in 2014 (–1.9 ± 0.2%). Weak area shrinkage of glaciers by 2.5 ± 0.5 km(2) (0.2 ± 0.1%) happened after 2000 and the period 2009–2014 even saw a slight expansion by 0.5 ± 0.1 km(2) (0.1 ± 0.0%). The glaciers in this region have experienced an overall loss of –6.99 ± 0.80 km(3) in ice volume or –0.15 ± 0.12 m water equivalent (w.e.) a(–1) from 1971/76 to 2013/14. The mass budget of MAKT was –0.19 ± 0.19 m w.e. a(−1) for the period ~1971/76–1999 and –0.14 ± 0.24 m w.e. a(−1) during 1999–2013/2014. Similar to previous studies, there has been little mass change in the Pamir over recent decades despite such uncertainties. Glacier mass change showed spatial and temporal heterogeneity, with strong mass loss on debris-covered glaciers with an average of –0.32 ± 0.12 m w.e. a(−1) from the 1970s to 2013/14. Public Library of Science 2016-01-20 /pmc/articles/PMC4720423/ /pubmed/26789404 http://dx.doi.org/10.1371/journal.pone.0147327 Text en © 2016 Zhang et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Zhang, Zhen Liu, Shiyin Wei, Junfeng Xu, Junli Guo, Wanqin Bao, Weijia Jiang, Zongli Mass Change of Glaciers in Muztag Ata–Kongur Tagh, Eastern Pamir, China from 1971/76 to 2013/14 as Derived from Remote Sensing Data |
title | Mass Change of Glaciers in Muztag Ata–Kongur Tagh, Eastern Pamir, China from 1971/76 to 2013/14 as Derived from Remote Sensing Data |
title_full | Mass Change of Glaciers in Muztag Ata–Kongur Tagh, Eastern Pamir, China from 1971/76 to 2013/14 as Derived from Remote Sensing Data |
title_fullStr | Mass Change of Glaciers in Muztag Ata–Kongur Tagh, Eastern Pamir, China from 1971/76 to 2013/14 as Derived from Remote Sensing Data |
title_full_unstemmed | Mass Change of Glaciers in Muztag Ata–Kongur Tagh, Eastern Pamir, China from 1971/76 to 2013/14 as Derived from Remote Sensing Data |
title_short | Mass Change of Glaciers in Muztag Ata–Kongur Tagh, Eastern Pamir, China from 1971/76 to 2013/14 as Derived from Remote Sensing Data |
title_sort | mass change of glaciers in muztag ata–kongur tagh, eastern pamir, china from 1971/76 to 2013/14 as derived from remote sensing data |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4720423/ https://www.ncbi.nlm.nih.gov/pubmed/26789404 http://dx.doi.org/10.1371/journal.pone.0147327 |
work_keys_str_mv | AT zhangzhen masschangeofglaciersinmuztagatakongurtagheasternpamirchinafrom197176to201314asderivedfromremotesensingdata AT liushiyin masschangeofglaciersinmuztagatakongurtagheasternpamirchinafrom197176to201314asderivedfromremotesensingdata AT weijunfeng masschangeofglaciersinmuztagatakongurtagheasternpamirchinafrom197176to201314asderivedfromremotesensingdata AT xujunli masschangeofglaciersinmuztagatakongurtagheasternpamirchinafrom197176to201314asderivedfromremotesensingdata AT guowanqin masschangeofglaciersinmuztagatakongurtagheasternpamirchinafrom197176to201314asderivedfromremotesensingdata AT baoweijia masschangeofglaciersinmuztagatakongurtagheasternpamirchinafrom197176to201314asderivedfromremotesensingdata AT jiangzongli masschangeofglaciersinmuztagatakongurtagheasternpamirchinafrom197176to201314asderivedfromremotesensingdata |