Analysis of glacier changes in the Nyainqentanglha Mountain based on the combination of satellite gravity and optical remote sensing

The GRACE and GRACE-FO gravity satellite data were used to retrieve the glacier quality changes in the Nyainqentanglha Mountains from August 2002 to April 2020, and combined with remote sensing technology to estimate the glacier area and reserves changes in the western Nyainqentanglha. The main conc...

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Autores principales: ZHOU Miao, CHANG Xiaotao, ZHU Guangbin, QU Qingliang, LIU Wei
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Lenguaje:ZH
Publicado: Surveying and Mapping Press 2021
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spelling oai:doaj.org-article:4669ac29e12c45bb96563828393b538d2021-11-12T02:25:59ZAnalysis of glacier changes in the Nyainqentanglha Mountain based on the combination of satellite gravity and optical remote sensing1001-159510.11947/j.AGCS.2021.20200463https://doaj.org/article/4669ac29e12c45bb96563828393b538d2021-10-01T00:00:00Zhttp://xb.sinomaps.com/article/2021/1001-1595/2021-10-1331.htmhttps://doaj.org/toc/1001-1595The GRACE and GRACE-FO gravity satellite data were used to retrieve the glacier quality changes in the Nyainqentanglha Mountains from August 2002 to April 2020, and combined with remote sensing technology to estimate the glacier area and reserves changes in the western Nyainqentanglha. The main conclusions are as follows:①The glaciers in the Nyainqentanglha Mountains showed an overall retreat trend during the study period, and there was an accelerated melting trend after 2013. ②The correlation between temperature changes and glacier melting curves can be found by comparing with summer temperature changes and precipitation anomalies better, the precipitation continued to decrease during the study period, indicating that the increase in temperature and the decrease in precipitation are the main reasons for the continuous decrease in the mass of glaciers in the Nyainqentanglha. ③The glacier area of the West Nyainqentanglha Mountains decreased by 72.30 km<sup>2</sup> from 2003 to 2017, with an average annual decrease rate of 5.16 km<sup>2</sup>/a. The glacier area retreats most obviously in the altitude range of 5600~5800 m. ④The coordinated application of satellite gravity and optical remote sensing technology can complement each other's advantages. It can not only estimate changes in glacier quality, but also detect changes in glacier area and elevation. At present, there are still some shortcomings in the joint application of the two technologies, which need to be further studied.ZHOU MiaoCHANG XiaotaoZHU GuangbinQU QingliangLIU WeiSurveying and Mapping Pressarticlesatellite gravityoptical satellite remote sensingglacier change monitoringnyainqentanglha mountainsMathematical geography. CartographyGA1-1776ZHActa Geodaetica et Cartographica Sinica, Vol 50, Iss 10, Pp 1331-1337 (2021)
institution DOAJ
collection DOAJ
language ZH
topic satellite gravity
optical satellite remote sensing
glacier change monitoring
nyainqentanglha mountains
Mathematical geography. Cartography
GA1-1776
spellingShingle satellite gravity
optical satellite remote sensing
glacier change monitoring
nyainqentanglha mountains
Mathematical geography. Cartography
GA1-1776
ZHOU Miao
CHANG Xiaotao
ZHU Guangbin
QU Qingliang
LIU Wei
Analysis of glacier changes in the Nyainqentanglha Mountain based on the combination of satellite gravity and optical remote sensing
description The GRACE and GRACE-FO gravity satellite data were used to retrieve the glacier quality changes in the Nyainqentanglha Mountains from August 2002 to April 2020, and combined with remote sensing technology to estimate the glacier area and reserves changes in the western Nyainqentanglha. The main conclusions are as follows:①The glaciers in the Nyainqentanglha Mountains showed an overall retreat trend during the study period, and there was an accelerated melting trend after 2013. ②The correlation between temperature changes and glacier melting curves can be found by comparing with summer temperature changes and precipitation anomalies better, the precipitation continued to decrease during the study period, indicating that the increase in temperature and the decrease in precipitation are the main reasons for the continuous decrease in the mass of glaciers in the Nyainqentanglha. ③The glacier area of the West Nyainqentanglha Mountains decreased by 72.30 km<sup>2</sup> from 2003 to 2017, with an average annual decrease rate of 5.16 km<sup>2</sup>/a. The glacier area retreats most obviously in the altitude range of 5600~5800 m. ④The coordinated application of satellite gravity and optical remote sensing technology can complement each other's advantages. It can not only estimate changes in glacier quality, but also detect changes in glacier area and elevation. At present, there are still some shortcomings in the joint application of the two technologies, which need to be further studied.
format article
author ZHOU Miao
CHANG Xiaotao
ZHU Guangbin
QU Qingliang
LIU Wei
author_facet ZHOU Miao
CHANG Xiaotao
ZHU Guangbin
QU Qingliang
LIU Wei
author_sort ZHOU Miao
title Analysis of glacier changes in the Nyainqentanglha Mountain based on the combination of satellite gravity and optical remote sensing
title_short Analysis of glacier changes in the Nyainqentanglha Mountain based on the combination of satellite gravity and optical remote sensing
title_full Analysis of glacier changes in the Nyainqentanglha Mountain based on the combination of satellite gravity and optical remote sensing
title_fullStr Analysis of glacier changes in the Nyainqentanglha Mountain based on the combination of satellite gravity and optical remote sensing
title_full_unstemmed Analysis of glacier changes in the Nyainqentanglha Mountain based on the combination of satellite gravity and optical remote sensing
title_sort analysis of glacier changes in the nyainqentanglha mountain based on the combination of satellite gravity and optical remote sensing
publisher Surveying and Mapping Press
publishDate 2021
url https://doaj.org/article/4669ac29e12c45bb96563828393b538d
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AT changxiaotao analysisofglacierchangesinthenyainqentanglhamountainbasedonthecombinationofsatellitegravityandopticalremotesensing
AT zhuguangbin analysisofglacierchangesinthenyainqentanglhamountainbasedonthecombinationofsatellitegravityandopticalremotesensing
AT quqingliang analysisofglacierchangesinthenyainqentanglhamountainbasedonthecombinationofsatellitegravityandopticalremotesensing
AT liuwei analysisofglacierchangesinthenyainqentanglhamountainbasedonthecombinationofsatellitegravityandopticalremotesensing
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