Publications related to the GRACE Missions (no abstracts)

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Seismic Effects of Large Earthquakes on Sea–Level Budget Closures

Song, Y. Tony, Landerer, Felix, Hamlington, B. D., Cha, Hyeonsoo, and Moon, J.–H., 2026. Seismic Effects of Large Earthquakes on Sea–Level Budget Closures. Journal of Geophysical Research (Oceans), 131(7):e2025JC023868, doi:10.1029/2025JC023868.

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BibTeX

@ARTICLE{2026JGRC..13123868S,
       author = {{Song}, Y. Tony and {Landerer}, Felix and {Hamlington}, B.~D. and {Cha}, Hyeonsoo and {Moon}, J.-H.},
        title = "{Seismic Effects of Large Earthquakes on Sea-Level Budget Closures}",
      journal = {Journal of Geophysical Research (Oceans)},
     keywords = {sea level rise, sesimic effect, EOF, GRACE, altimetry, sea-level budget},
         year = 2026,
        month = jul,
       volume = {131},
       number = {7},
          eid = {e2025JC023868},
        pages = {e2025JC023868},
     abstract = "{Large submarine earthquakes introduce significant distortions into the
        ocean bottom pressure (OBP) data from the Gravity Recovery and
        Climate Experiment (GRACE) and its follow-on mission (GRACE-FO),
        leading to non-closure of regional sea-level budgets in
        seismically active oceans. In this study, we show that
        earthquake-induced seafloor deformations can be effectively
        isolated using an iterative Empirical Orthogonal Function method
        that accounts for both co-seismic and post-seismic effects. The
        resulting seismic biases are systematic, driven by ongoing
        tectonic drift, and can (a) exceed total steric contributions to
        sea-level change in some regions and (b) surpass Glacial
        Isostatic Adjustment (GIA) contributions in the global mean.
        These findings indicate that seismic deformation represents a
        non-negligible component for separating natural and human-driven
        contributions in climate assessments. Applying the seismic
        corrections to the OBP fields restores regional sea-level budget
        closure and improves the physical consistency of oceanographic
        and climate analyses.}",
          doi = {10.1029/2025JC023868},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2026JGRC..13123868S},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

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