Publications related to the GRACE Missions (no abstracts)

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Revealing the lagged relationship between groundwater changes and land subsidence in Tianjin based on GRACE and InSAR observations

Li, Yang, Zhao, Wenmiao, Mao, Kuanzhen, Jing, Wentao, Huo, Weiqi, and Zhang, Dongming, 2026. Revealing the lagged relationship between groundwater changes and land subsidence in Tianjin based on GRACE and InSAR observations. Scientific Reports, 16(1):27878, doi:10.1038/s41598-026-58032-w.

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@ARTICLE{2026NatSR..1627878L,
       author = {{Li}, Yang and {Zhao}, Wenmiao and {Mao}, Kuanzhen and {Jing}, Wentao and {Huo}, Weiqi and {Zhang}, Dongming},
        title = "{Revealing the lagged relationship between groundwater changes and land subsidence in Tianjin based on GRACE and InSAR observations}",
      journal = {Scientific Reports},
     keywords = {GRACE, PS-InSAR, SBAS-InSAR, Groundwater storage, Land subsidence, Cross-correlation},
         year = 2026,
        month = jun,
       volume = {16},
       number = {1},
          eid = {27878},
        pages = {27878},
     abstract = "{Tianjin has long been plagued by land subsidence, which is primarily
        caused by groundwater over-exploitation and poses major threats
        to urban construction, economic development, and infrastructure
        safety. This study aims to explore the relationship between
        groundwater storage (GWS) changes and land subsidence in Tianjin
        by combining GRACE and InSAR technologies. To clarify this
        relationship macroscopically, GRACE and GLDAS data were used to
        analyze GWS changes in the study area from January 2023 to
        February 2025, while PS-InSAR was applied to obtain concurrent
        land subsidence information. Time-lagged cross-correlation
        analysis was introduced to quantify the correlation and lag time
        between GWS changes and land subsidence time series. Results
        showed: (1) GWS was positive in most areas (maximum annual rate
        59.13 mm/yr, concentrated in east-central Jinghai, south-central
        Xiqing, Jinnan and central Binhai New Area), decreasing from the
        center to north and south, with a significant decline (-9.22
        mm/yr) in northern Binhai New Area; severe land subsidence
        showed a ``peripheral aggregation'' pattern, with 4 contiguous
        zones, 7 funnels and a max rate of 67.62 mm/yr (near Yangjiapo
        Town, Binhai New Area); (2) The cross-correlation coefficient
        between GWS changes and land subsidence ranged from 0.257 to
        0.882 (0.542--0.853, 0.431--0.826, 0.257--0.882, 0.538--0.846
        for Zones I-IV respectively), and land subsidence lagged GWS
        changes by 41--263 days overall. This study confirms the link
        and lag effect between GWS and land subsidence in Tianjin,
        providing scientific guidance for subsidence prevention and
        early warning.}",
          doi = {10.1038/s41598-026-58032-w},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2026NatSR..1627878L},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

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