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@ARTICLE{2025JGlac..71E..89D,
       author = {{Danesi}, Stefania and {Salimbeni}, Simone and {Borghi}, Alessandra and {Urbini}, Stefano and {Zirizzotti}, Achille and {Frezzotti}, Massimo},
        title = "{Ice mass discharge through the Antarctic subglacial hydrographic network as a trigger for cryoseismicity}",
      journal = {Journal of Glaciology},
         year = 2025,
        month = jan,
       volume = {71},
          eid = {e89},
        pages = {e89},
     abstract = "{We analyse seismic time series collected during experimental campaigns
        in the area of the David Glacier, Victoria Land, Antarctica,
        between 2003 and 2016. We observe hundreds of repeating seismic
        events, characterized by highly correlated waveforms (cross-
        correlation > 0.95), which mainly occur in the grounding zone,
        i.e. the region where the ice transitions from grounded ice
        sheet to freely floating ice shelf. The joint analysis of
        seismic events and observed local tidal measurements suggests
        that seismicity is not only triggered by a regular, periodic
        driver such as the ocean tides but also more likely by transient
        pulses. We consider potential environmental processes and their
        impact on the coupling between the glacier flow and the bedrock
        brittle failure. Among the environmental variables examined, our
        findings suggest that clustered and repeated seismic events may
        be related to transient episodes of ice-mass discharge
        correlated to a change in the subglacial hydrographic system
        that originates upstream of the glacier, lubricating the
        interface with the bedrock. This hypothesis is supported by the
        gravity variation observations provided by the GRACE satellite
        mission, which observed mass variations during periods
        characterized by seismic clustering.}",
          doi = {10.1017/jog.2025.10062},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2025JGlac..71E..89D},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}