气候变化领域集成服务门户(CCPortal): Response of Groundwater Storage and Recharge in the Qaidam Basin (Tibetan Plateau) to Climate Variations From 2002 to 2016

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DOI	10.1029/2019JD030411
	Response of Groundwater Storage and Recharge in the Qaidam Basin (Tibetan Plateau) to Climate Variations From 2002 to 2016
	Bibi, Sadia; Wang, Lei; Li, Xiuping; Zhang, Xiaotao; Chen, Deliang
通讯作者	Wang, L (通讯作者)
发表日期	2019
ISSN	2169-897X
EISSN	2169-8996
起始页码	9918
结束页码	9934
卷号	124 期号:17-18
英文摘要	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.
关键词	WATER STORAGE RIVER-BASIN SATELLITE-OBSERVATIONS CHANGE IMPACTS EVAPOTRANSPIRATION CHINA PERMAFROST DROUGHT UNCERTAINTY SURFACE
英文关键词	groundwater; climate change; GRACE; GLDAS; recharge; Qaidam Basin
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000486893400001
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259502
推荐引用方式 GB/T 7714	Bibi, Sadia,Wang, Lei,Li, Xiuping,et al. Response of Groundwater Storage and Recharge in the Qaidam Basin (Tibetan Plateau) to Climate Variations From 2002 to 2016[J]. 中国科学院青藏高原研究所,2019,124(17-18).
APA	Bibi, Sadia,Wang, Lei,Li, Xiuping,Zhang, Xiaotao,&Chen, Deliang.(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).
MLA	Bibi, Sadia,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).