Publications related to the GRACE Missions (no abstracts)

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Mass Changes in a High-Latitude River Basin From Two Decades of GRACE/GRACE-FO

Bringeland, S. and Fotopoulos, G., 2025. Mass Changes in a High-Latitude River Basin From Two Decades of GRACE/GRACE-FO. Journal of Geophysical Research (Earth Surface), 130(8):e2024JF008017, doi:10.1029/2024JF008017.

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@ARTICLE{2025JGRF..13008017B,
       author = {{Bringeland}, S. and {Fotopoulos}, G.},
        title = "{Mass Changes in a High-Latitude River Basin From Two Decades of GRACE/GRACE-FO}",
      journal = {Journal of Geophysical Research (Earth Surface)},
     keywords = {terrestrial water storage anomalies, GRACE/GRACE-FO, high-latitude climate change, water budget analysis, model validation, glacial isostatic adjustment},
         year = 2025,
        month = aug,
       volume = {130},
       number = {8},
          eid = {e2024JF008017},
        pages = {e2024JF008017},
     abstract = "{The rise in global temperatures is amplified in high-latitude regions,
        where snow and ice play a vital role in the hydrological cycle.
        Understanding the impacts of climate change on ecosystems and
        communities in Northern regions requires accurate hydrological
        data. Within Northern Canada, in situ data sparsity (in both
        spatial and temporal resolution) poses a challenge to robust
        characterization of hydrological trends. The increasing
        availability of satellite-derived data can provide an
        independent measure of terrestrial water storage. This study
        compares terrestrial water storage anomalies (TWSA) from Gravity
        Recovery and Climate Experiment (GRACE) and GRACE-FO to in situ
        and satellite-derived precipitation and evaporation products
        within the Mackenzie River Basin (MRB), Canada, a high-latitude
        basin characterized by low population density and significant
        contribution of freshwater to the Arctic Ocean. Declining trends
        in TWSA from GRACE/GRACE-FO in the MRB are not fully explained
        by corresponding trends in hydrological parameters. Water budget
        analysis reveals inconsistencies between GRACE/GRACE-FO derived
        TWSA and TWSA derived using precipitation, evaporation, and
        runoff data, which may be attributed to physical processes
        represented in the GRACE/GRACE-FO observations. Three models of
        glacial isostatic adjustment (GIA), namely the ICE6G\_D (VM5a),
        Caron-18, and LM-17.3 models, were compared to examine the
        sensitivity of the GRACE/GRACE-FO-derived TWSA to the GIA model
        (correction) employed, revealing approximately
        {\ensuremath{\pm}}1 cm of equivalent water height per year
        variability in the TWSA linear trend. The results suggest that
        robust characterization of regional mass processes (e.g.,
        subsidence, residual GIA) within the MRB is necessary to isolate
        hydrological mass changes.}",
          doi = {10.1029/2024JF008017},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2025JGRF..13008017B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

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