地下水超采与地面沉降联动的TS-InSAR评价——以衡水为例

IF 5 2区地球科学 Q1 WATER RESOURCES

Journal of Hydrology-Regional Studies Pub Date : 2025-06-05 DOI:10.1016/j.ejrh.2025.102489

Yan An , Qiang Shen , C.K. Shum , Fan Gao , Xu Zhang , Liming Jiang , Hansheng Wang

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引用次数: 0

摘要

研究区域：中国华北平原衡水市地处半干旱区，农业活动密集，地表水资源稀缺，地下水长期透支。本研究旨在量化典型多含水层环境下地下水储量的长期变化，揭示含水层系统的响应机制。利用Sentinel-1A多年时序干涉合成孔径雷达（InSAR）数据，对衡水市2017 - 2024年地表变形模式进行了分析。通过分离季节变形，校正相位滞后，结合承压含水层水头变化估算深层含水层弹性骨架蓄能系数（ESSC）和地下水蓄能变化（GWSC）。结果表明：2017-2024年，衡水市以沉降为主，沉降速率高达141 mm/年，主要原因是承压含水层水头下降和含水层排水延迟。ESSC范围为0.98×10−3 ~ 3.63×10−3，年深层地下水损失约为−0.57 km³。总体而言，含水层的非均质性导致了参数的空间变异性，造成了不均匀的沉降和蓄水动态。本研究为衡水地下水监测提供了新的思路，为地下水沉降模拟提供了约束。这也证明了InSAR在探测地下变形和多尺度水文变化方面的强大能力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

TS-InSAR assessment of groundwater overexploitation-land subsidence linkage: Hengshui case study

查看原文本刊更多论文

TS-InSAR assessment of groundwater overexploitation-land subsidence linkage: Hengshui case study

Study region

Hengshui City, situated in the North China Plain (NCP), China, is a semi-arid area characterized by intensive agricultural activities and chronic groundwater overdraft due to scarce surface water availability.

Study focus

This study aims to quantify long-term groundwater storage changes and reveal the aquifer system's response mechanisms in a typical multi-aquifer setting. We employ Sentinel-1A data for multi-year time-series interferometric synthetic aperture radar (InSAR) analysis to assess surface deformation patterns in Hengshui City from 2017 to 2024. Seasonal deformation was separated, phase lag was corrected, and confined aquifer head changes incorporated to estimate the elastic skeletal storage coefficient (ESSC) and groundwater storage change (GWSC) in deep aquifers.

New hydrological insights for the region

Results show subsidence dominates in Hengshui City, with rates up to 141 mm/year (2017–2024), mainly due to falling confined aquifer heads and delayed aquitard drainage. ESSC ranges from

0.98 \times 10^{- 3}

3.63 \times 10^{- 3}

, with annual deep groundwater loss around −0.57 km³ . Overall, aquifer heterogeneity contributes to spatial variability in parameters, causing uneven subsidence and water storage dynamics. This work offers new insights into groundwater monitoring in Hengshui, constraining groundwater-subsidence modeling. It also demonstrates InSAR’s strong capability in detecting subsurface deformation and multi-scale hydrological variations.

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来源期刊

Journal of Hydrology-Regional Studies Earth and Planetary Sciences-Earth and Planetary Sciences (miscellaneous)

CiteScore

6.70

自引率

8.50%

发文量

284

审稿时长

60 days

期刊介绍： Journal of Hydrology: Regional Studies publishes original research papers enhancing the science of hydrology and aiming at region-specific problems, past and future conditions, analysis, review and solutions. The journal particularly welcomes research papers that deliver new insights into region-specific hydrological processes and responses to changing conditions, as well as contributions that incorporate interdisciplinarity and translational science.