Can GRACE and CMIP6 historical data identify groundwater drought in North China Plain?

Yao, Yin; Guo, Bin; Zhong, Yulong; Deng, Haijun; Chang, Le

doi:10.1007/s00704-023-04441-0

Cited by 6 publications

(1 citation statement)

References 49 publications

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“…The spatial consistency between meteorological drought characteristics and groundwater drought characteristics is not high, but the temporal correlation is significant. In the process of drought propagation from meteorological to groundwater drought, the frequency of drought occurrences decreases, while the duration and severity of drought increase, which is similar to the results of Han, Zhiming et al [63], Gong et al [64], Yin et al [65], Zhao et al [17], etc. The process of drought propagation is complicated, and the spatial distribution of drought propagation characteristics is caused by multiple factors such as climatic conditions, surface physical properties [66], vadose zone thickness and structure (Supporting Information Figure S2), and human activities.…”

Section: Discussionsupporting

confidence: 84%

Understanding the Propagation of Meteorological Drought to Groundwater Drought: A Case Study of the North China Plain

Chen,

Zhang,

Tian

et al. 2024

Water

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As extreme climate events become more common with global warming, groundwater is increasingly vital for combating long-term drought and ensuring socio-economic and ecological stability. Currently, the mechanism of meteorological drought propagation to groundwater drought is still not fully understood. This study focuses on the North China Plain (NCP), utilizing statistical theories, spatiotemporal kriging interpolation, and the Mann–Kendall trend test to examine the spatial and temporal distribution characteristics of groundwater from 2005 to 2021. Based on drought theory, the characteristics and propagation process of drought are further quantified. Key findings reveal the following: (1) Shallow groundwater depths in the NCP follow a zonal pattern from the western mountains to the eastern plains and coastal areas. Over two-thirds of this region showed an increase in groundwater depth at a rate of 0–0.05 m/a; (2) Groundwater drought frequency typically ranges from 3 to 6 times, with an average duration of 10 to 30 months and average severity between 10 and 35; (3) Delayed effects last between 0 to 60 months, with attenuation effects varying from 0 to 3 and prolonged effects extending from 0 to 16. Additionally, delayed effects intensify with increasing time scales, while prolonged effects weaken. Notably, both delayed and prolonged effects in the north of the NCP are more pronounced than in the south of the region. This study quantifies the process by which meteorological drought propagates to groundwater drought, offering a new perspective for understanding the interaction between groundwater and meteorological drought. It holds significant scientific importance for monitoring drought and managing water resources in the context of global climate change.

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