Publications related to the GRACE Missions (no abstracts)

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Poleward shift of subtropical highs drives Patagonian glacier mass loss

Noël, Brice, Lhermitte, Stef, Wouters, Bert, and Fettweis, Xavier, 2025. Poleward shift of subtropical highs drives Patagonian glacier mass loss. Nature Communications, 16(1):3795, doi:10.1038/s41467-025-58974-1.

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@ARTICLE{2025NatCo..16.3795N,
       author = {{No{\"e}l}, Brice and {Lhermitte}, Stef and {Wouters}, Bert and {Fettweis}, Xavier},
        title = "{Poleward shift of subtropical highs drives Patagonian glacier mass loss}",
      journal = {Nature Communications},
     keywords = {Earth Sciences, Physical Geography and Environmental Geoscience},
         year = 2025,
        month = apr,
       volume = {16},
       number = {1},
          eid = {3795},
        pages = {3795},
     abstract = "{Patagonian glaciers have been rapidly losing mass in the last two
        decades, but the driving processes remain poorly known. Here we
        use two state-of-the-art regional climate models to reconstruct
        long-term (1940-2023) glacier surface mass balance (SMB), i.e.,
        the difference between precipitation accumulation, surface
        runoff and sublimation, at about 5 km spatial resolution,
        further statistically downscaled to 500 m. High-resolution SMB
        agrees well with in-situ observations and, combined with solid
        ice discharge estimates, captures recent GRACE/GRACE-FO
        satellite mass change. Glacier mass loss coincides with a long-
        term SMB decline (‑0.35 Gt yr$^{‑2}$), primarily driven by
        enhanced surface runoff (+0.47 Gt yr$^{‑2}$) and steady
        precipitation. We link these trends to a poleward shift of the
        subtropical highs favouring warm northwesterly air advections
        towards Patagonia (+0.14{\textdegree}C dec$^{‑1}$ at 850 hPa).
        Since the 1940s, Patagonian glaciers have lost 1350
        {\ensuremath{\pm}} 449 Gt of ice, equivalent to 3.7
        {\ensuremath{\pm}} 1.2 mm of global mean sea-level rise.}",
          doi = {10.1038/s41467-025-58974-1},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2025NatCo..16.3795N},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

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