Spatio-Temporal Variation Characteristics of Groundwater Drought in the Beijing-Tianjin-Hebei Region Based on GRACE Data
[1]LI Aimin,GUO Zhenqiang,WU Zekun,et al.Spatio-Temporal Variation Characteristics of Groundwater Drought in the Beijing-Tianjin-Hebei Region Based on GRACE Data[J].Journal of Zhengzhou University (Engineering Science),2026,47(XX):1-9.[doi:10.13705/j.issn.1671-6833.2025.05.019]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
47
Number of periods:
2026 XX
Page number:
1-9
Column:
Public date:
2026-09-10
- Title:
- Spatio-Temporal Variation Characteristics of Groundwater Drought in the Beijing-Tianjin-Hebei Region Based on GRACE Data
- Keywords:
- grace gravity satellite; Beijing-Tianjin-Hebei region; groundwater drought; groundwater storage capacity; run theory
- CLC:
- TV213. 4P641
- Abstract:
- This study investigated the spatiotemporal characteristics and influencing mechanisms of groundwater drought in the Beijing-Tianjin-Hebei region, aiming to provide scientific support for sustainable water resource management and promote high-quality regional development. Using Gravity Recovery and Climate Experiment (GRACE) satellite data (October 2003 to September 2023) and Global Land Data Assimilation System (GLDAS) data, groundwater storage anomalies (GWSA) were retrieved for the study area. Based on these results, a groundwater drought index (GRACE-GDI) was constructed, through which groundwater drought events were identified using run theory. The occurrence frequency and spatiotemporal patterns of groundwater drought were subsequently analyzed, followed by an examination of relationships between groundwater drought and various influencing factors using meteorological data and water resource bulletins. The results indicated that: ①Higher frequencies of groundwater drought occurred in the central-eastern region, with the highest frequencies of moderate-to-severe drought concentrated along the southeastern periphery; ②Groundwater drought events primarily clustered between 2014 and 2021, characterized by high frequency, wide spatial extent, but relatively low intensity; ③Seasonally, autumn and spring droughts were most severe in southeastern cities, while summer droughts were milder, correlating with agricultural irrigation activities during March to May and October to November; ④Interannually, groundwater drought intensified after 2014 following sharp precipitation declines, reaching maximum severity in 2020 when widespread moderate-to-severe drought covered the entire region, before alleviating in 2021 due to increased precipitation; ⑤The South-to-North Water Diversion Project effectively replenished surface water resources and facilitated shifts in water supply-demand patterns, playing a crucial role in mitigating long-term groundwater deficits.
- References:
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Last Update:
2026-01-14
