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Response of Groundwater Storage and Recharge in the Qaidam Basin (Tibetan Plateau) to Climate Variations From 2002 to 2016
Bibi, S (Bibi, Sadia)1; Wang, L (Wang, Lei)1,2,3; Li, XP (Li, Xiuping)1; Zhang, XT (Zhang, Xiaotao)1; Chen, DL (Chen, Deliang)1,4
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
2019
Volume124Issue:17-18Pages:9918-9934
DOI10.1029/2019JD030411
Abstract

Groundwater (GW) and recharge as the main drivers of the water budget are challenging to quantify due to the complexity of hydrological processes and limited observations. Understanding these processes in relation to climate is crucial for evaluating future water availability of Tibetan Plateau. By computing storage changes in Gravity Recovery and Climate Experiment terrestrial water storage and Global Land Surface Data Assimilation System land surface state variables and water balance approach, we calculated GW storage changes and recharges. In the Qaidam Basin (northern Tibetan Plateau), terrestrial water storage from the Gravity Recovery and Climate Experiment revealed a significant increasing trend of 25.5 mm/year during 2002-2012. However, an obviously turning point was found around 2012 and terrestrial water storage revealed a significant decreasing rate of 37.9 mm/year during 2013-2016. Similarly, GW (recharge) had a significant increasing trend of 21.2 (4.5) mm/year before 2012 and a decreasing rate of 32.1 (10.9) mm/year after 2012. Domain-averaged difference (P-ET) between precipitation (P) and evapotranspiration (ET) also exhibited an increasing trend of 4.4 mm/year during 2002-2012 and a decreasing rate of 9.0 mm/year during 2013-2016. Precipitation followed dissimilar pattern with an increasing rate of 5.3 mm/year during 2002-2012 while no significant trend during 2013-2016. However, ET had a consistent increasing trend over the basin during the past 15 years (0.9 mm/year before 2012 and 9.0 mm/year thereafter). This study concluded that GW amount and distribution is mainly controlled by precipitation and ET. Decrease in precipitation at high elevations and increase in ET may impact future groundwater availability in this region.

Subject AreaAtmospheric Sciences
WOS IDWOS:000486893400001
Language英语
Indexed BySCI
KeywordWater Storage River-basin Satellite-observations Change Impacts Evapotranspiration China Permafrost Drought Uncertainty Surface
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
Cooperation Status国际
ISSN2169-897X
Department环境变化与地表过程重点实验室
URL查看原文
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/9166
Collection图书馆
Corresponding AuthorWang, L (Wang, Lei)
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China;
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China;
3.Univ Chinese Acad Sci, Dept Earth Sci, Beijing, Peoples R China;
4.Univ Gothenburg, Dept Earth Sci, Reg Climate Grp, Gothenburg, Sweden.
Recommended Citation
GB/T 7714
Bibi, S ,Wang, L ,Li, XP ,et al. Response of Groundwater Storage and Recharge in the Qaidam Basin (Tibetan Plateau) to Climate Variations From 2002 to 2016[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(17-18):9918-9934.
APA Bibi, S ,Wang, L ,Li, XP ,Zhang, XT ,&Chen, DL .(2019).Response of Groundwater Storage and Recharge in the Qaidam Basin (Tibetan Plateau) to Climate Variations From 2002 to 2016.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(17-18),9918-9934.
MLA Bibi, S ,et al."Response of Groundwater Storage and Recharge in the Qaidam Basin (Tibetan Plateau) to Climate Variations From 2002 to 2016".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.17-18(2019):9918-9934.
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