Publications related to the GRACE Missions (no abstracts)

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Global co-occurrence of warm temperature extremes and terrestrial water storage deficits

Rateb, Ashraf, Scanlon, Bridget R., and Sun, Alexander, 2025. Global co-occurrence of warm temperature extremes and terrestrial water storage deficits. Environmental Research Letters, 20(9):094010, doi:10.1088/1748-9326/adf2be10.22541/essoar.174346931.18465151/v1.

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@ARTICLE{2025ERL....20i4010R,
       author = {{Rateb}, Ashraf and {Scanlon}, Bridget R. and {Sun}, Alexander},
        title = "{Global co-occurrence of warm temperature extremes and terrestrial water storage deficits}",
      journal = {Environmental Research Letters},
     keywords = {GRACE satellites, total water storage, heat waves, compounding extremes},
         year = 2025,
        month = sep,
       volume = {20},
       number = {9},
          eid = {094010},
        pages = {094010},
     abstract = "{Compounding climate extremes threaten ecosystems, agriculture, and
        public health, with intensification driven by a warming climate
        and increasing human interventions. However, the global linkage
        between temperature extremes and total water storage (TWS)
        deficits remains insufficiently explored. Here, we analyzed 22
        years (2002{\textendash}2024) of Gravity Recovery and Climate
        Experiment (GRACE) and GRACE-FO satellite data to examine the
        spatiotemporal coincidence of elevated temperatures and TWS
        deficits and explore their bidirectional predictability. We find
        that low TWS episodes frequently coincide with or lag
        temperature extremes by about one month in major
        land{\textendash}atmosphere coupling hotspots, including
        equatorial, subtropical, and mid-latitude regions, possibly due
        to enhanced evapotranspiration and soil moisture reductions.
        Pre-existing TWS deficits appear to intensify and prolong
        temperature extremes by reducing latent heat flux and increasing
        sensible heat flux, potentially creating feedback processes that
        amplify drought and thermal stress; however, these mechanisms
        warrant further investigation. Statistical tests confirm that
        these co-occurrences are unlikely to be random, whereas Granger
        predictability analysis demonstrates that temperature anomalies
        improve forecasts of subsequent TWS extremes in critical
        regions. Overall, our results underscore the vulnerability of
        water-limited areas under climate change and highlight the value
        of continuous TWS monitoring to better predict and mitigate the
        impacts of temperature extremes. They further emphasize the
        urgency of integrated water-resource management and adaptation
        strategies in regions prone to prolonged compound extremes.}",
          doi = {10.1088/1748-9326/adf2be10.22541/essoar.174346931.18465151/v1},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2025ERL....20i4010R},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

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