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Geofluids
Volume 2017 (2017), Article ID 8254824, 13 pages
https://doi.org/10.1155/2017/8254824
Research Article

Evaluation of Groundwater Storage Variations in Northern China Using GRACE Data

1College of Water Sciences, Beijing Normal University, Beijing 100875, China
2Engineering Research Center of Groundwater Pollution Control and Remediation of Ministry of Education, Beijing Normal University, Beijing 100875, China
3Department of Earth Sciences and Shenzhen Research Institute (SRI), The University of Hong Kong, Pokfulam, Hong Kong

Correspondence should be addressed to Litang Hu; nc.ude.unb@uhgnatil

Received 6 April 2017; Revised 21 October 2017; Accepted 8 November 2017; Published 29 November 2017

Academic Editor: Stefano Lo Russo

Copyright © 2017 Wenjie Yin et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Dynamic change of groundwater storage is one of the most important topics in the sustainable management of groundwater resources. Groundwater storage variations are firstly isolated from the terrestrial water storage change using the Global Land Data Assimilation System (GLDAS). Two datasets are used: annual groundwater resources and groundwater storage changes estimated from point-based groundwater level data in observation wells. Results show that the match between the GRACE-derived groundwater storage variations and annual water resources variation is not good in six river basins of Northern China. However, it is relatively good between yearly GRACE-derived groundwater storage data and groundwater storage change dataset in Huang-Huai-Hai Plain and the Song-Liao Plain. The mean annual depletion rate of groundwater storage in the Northern China was approximately 1.70 billion m3 yr−1 from 2003 to 2012. In terms of provinces, the yearly depletion rate is higher in Jing-Jin-Ji (Beijing, Tianjin, and Hebei province) and lowest in Henan province from 2003 to 2012, with the rate of 0.70 and 0.21 cm yr−1 Equivalent Water Height (EWH), respectively. Different land surface models suggest that the patterns from different models almost remain the same, and soil moisture variations are generally bigger than snow water equivalent variations.