干旱区生态环境知识资源中心(Arid): Reconstructing GRACE-derived terrestrial water storage anomalies with in-situ groundwater level measurements and meteorological forcing data

Arid

DOI	10.1016/j.ejrh.2023.101528
	Reconstructing GRACE-derived terrestrial water storage anomalies with in-situ groundwater level measurements and meteorological forcing data
	Li, Peijun; Zha, Yuanyuan; Tso, Chak-Hau Michael
通讯作者	Zha, YY
来源期刊	JOURNAL OF HYDROLOGY-REGIONAL STUDIES
EISSN	2214-5818
出版年	2023
卷号	50
英文摘要	Study region: North China Plain (NCP), China, a semi-arid region with intense groundwater withdrawals.Study focus: This paper developed a framework using meteorological data, model-simulated terrestrial water storage anomalies (TWSA), and additional in-situ (groundwater level, GL) data to improve the unsatisfactory GRACE-TWSA reconstruction in arid and semi-arid regions due to the intense anthropogenic influence on groundwater. The inconsistency between point-scale data (GL) and grid-scale data (GRACE-TWSA and predictors other than GL) is handled by feature extraction techniques. Moreover, to deal with temporal non-stationarity, the time series are separated into trend and detrended components, the patterns of which are further learned by linear and nonlinear machine learning models, respectively.New hydrological insights for the region: Multi-site GL observations in NCP can not only serve as validation data but also as predictors providing invaluable information on human effects for the reconstructed TWSA improvement (from 6.51 to 3.86 cm for Root Mean Square Error and from 0.56 to 0.82 for Nash-Sutcliffe Efficiency). Our results show that multi-site GL data in NCP are highly inter-correlated and can be represented by several principal components, demonstrating the strong hydraulic connectivity in NCP. We also find a significant one-month lag and linear relationship between the trends of GRACE-TWSA and GL changes in NCP. These deeper un-derstandings of hydrologic processes have implications for enhancing the GRACE-TWSA estimations in other similar regions.
英文关键词	GRACE Terrestrial water storage Groundwater level Land surface model North China Plain
类型	Article
语种	英语
开放获取类型	gold, Green Accepted
收录类别	SCI-E
WOS记录号	WOS:001106639800001
WOS关键词	RIVER-BASIN ; CONNECTIONS
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397450
推荐引用方式 GB/T 7714	Li, Peijun,Zha, Yuanyuan,Tso, Chak-Hau Michael. Reconstructing GRACE-derived terrestrial water storage anomalies with in-situ groundwater level measurements and meteorological forcing data[J],2023,50.
APA	Li, Peijun,Zha, Yuanyuan,&Tso, Chak-Hau Michael.(2023).Reconstructing GRACE-derived terrestrial water storage anomalies with in-situ groundwater level measurements and meteorological forcing data.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,50.
MLA	Li, Peijun,et al."Reconstructing GRACE-derived terrestrial water storage anomalies with in-situ groundwater level measurements and meteorological forcing data".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 50(2023).