Detection of the spatial patterns of water storage variation over China in recent 70 years

Abstract Terrestrial water storage (TWS) variation is crucial for global hydrological cycles and water resources management under climatic changes. In the previous studies, changes in water storage of some part of China have been studied with GRACE data in recent ten years. However, the spatial patt...

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Autores principales:	Zheng Chen, Weiguo Jiang, Jianjun Wu, Kun Chen, Yue Deng, Kai Jia, Xinyu Mo
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/fc1c71e492764c398befd2e2aac54ea1
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spelling	oai:doaj.org-article:fc1c71e492764c398befd2e2aac54ea12021-12-02T12:32:00ZDetection of the spatial patterns of water storage variation over China in recent 70 years10.1038/s41598-017-06558-52045-2322https://doaj.org/article/fc1c71e492764c398befd2e2aac54ea12017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06558-5https://doaj.org/toc/2045-2322Abstract Terrestrial water storage (TWS) variation is crucial for global hydrological cycles and water resources management under climatic changes. In the previous studies, changes in water storage of some part of China have been studied with GRACE data in recent ten years. However, the spatial pattern of changes in water storage over China may be different in a long period. Here, we aimed to present long-term spatial patterns of TWS over China between 1948 to 2015 by unique Global Land Data Assimilation System Version 2 data and identify possible factors to water storage changes. The results revealed that the inner-annual variations in TWS of China exhibited remarkable downward trends with decreased rate of 0.1 cm/yr. Meanwhile, we found that spatial patterns of TWS in China can be divided into three distinct sub-regions of TWS region with increased, TWS region with decreased, TWS region with insignificant variation. The Northeast had decreased trends (−0.05 cm/yr) due to climate change and anthropogenic activities. Urban expansion is a non-ignorable factor to TWS reduction in Jing-Jin-Ji region (r = 0.61); the west had increased from 1948 to 2015 (0.03 cm/yr) due to precipitation increased and recharge by glacier melt; the south had insignificant trends and TWS varied with precipitation (r = 0.78).Zheng ChenWeiguo JiangJianjun WuKun ChenYue DengKai JiaXinyu MoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Zheng Chen Weiguo Jiang Jianjun Wu Kun Chen Yue Deng Kai Jia Xinyu Mo Detection of the spatial patterns of water storage variation over China in recent 70 years
description	Abstract Terrestrial water storage (TWS) variation is crucial for global hydrological cycles and water resources management under climatic changes. In the previous studies, changes in water storage of some part of China have been studied with GRACE data in recent ten years. However, the spatial pattern of changes in water storage over China may be different in a long period. Here, we aimed to present long-term spatial patterns of TWS over China between 1948 to 2015 by unique Global Land Data Assimilation System Version 2 data and identify possible factors to water storage changes. The results revealed that the inner-annual variations in TWS of China exhibited remarkable downward trends with decreased rate of 0.1 cm/yr. Meanwhile, we found that spatial patterns of TWS in China can be divided into three distinct sub-regions of TWS region with increased, TWS region with decreased, TWS region with insignificant variation. The Northeast had decreased trends (−0.05 cm/yr) due to climate change and anthropogenic activities. Urban expansion is a non-ignorable factor to TWS reduction in Jing-Jin-Ji region (r = 0.61); the west had increased from 1948 to 2015 (0.03 cm/yr) due to precipitation increased and recharge by glacier melt; the south had insignificant trends and TWS varied with precipitation (r = 0.78).
format	article
author	Zheng Chen Weiguo Jiang Jianjun Wu Kun Chen Yue Deng Kai Jia Xinyu Mo
author_facet	Zheng Chen Weiguo Jiang Jianjun Wu Kun Chen Yue Deng Kai Jia Xinyu Mo
author_sort	Zheng Chen
title	Detection of the spatial patterns of water storage variation over China in recent 70 years
title_short	Detection of the spatial patterns of water storage variation over China in recent 70 years
title_full	Detection of the spatial patterns of water storage variation over China in recent 70 years
title_fullStr	Detection of the spatial patterns of water storage variation over China in recent 70 years
title_full_unstemmed	Detection of the spatial patterns of water storage variation over China in recent 70 years
title_sort	detection of the spatial patterns of water storage variation over china in recent 70 years
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/fc1c71e492764c398befd2e2aac54ea1
work_keys_str_mv	AT zhengchen detectionofthespatialpatternsofwaterstoragevariationoverchinainrecent70years AT weiguojiang detectionofthespatialpatternsofwaterstoragevariationoverchinainrecent70years AT jianjunwu detectionofthespatialpatternsofwaterstoragevariationoverchinainrecent70years AT kunchen detectionofthespatialpatternsofwaterstoragevariationoverchinainrecent70years AT yuedeng detectionofthespatialpatternsofwaterstoragevariationoverchinainrecent70years AT kaijia detectionofthespatialpatternsofwaterstoragevariationoverchinainrecent70years AT xinyumo detectionofthespatialpatternsofwaterstoragevariationoverchinainrecent70years
_version_	1718394255800532992

Detection of the spatial patterns of water storage variation over China in recent 70 years

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