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Research Summary

Both Antarctica and Greenland have experienced unprecedented changes in the couple decades resulting from regional warming resulting in enhanced surface melting. Increases in melting has activated a dynamic surface hydrologic system contributing to significant mass loss. Surface melt runoff contributes directly to Greenland’s mass loss as well as infiltration which impact ice dynamics and mass discharge. While enhanced oceanic forcing due to inclusion of warm waters has substantially impacted Antarctic ice shelf stability and ice stream flow dynamics. These ice sheet systems have a few critical bounding forces that can influence the rate of mass loss which includes the loss of ice shelves/tongues, enhanced calving at marine-terminating outlet glaciers, and an evolving basal hydrologic systems. My work has been focused on various processes impacting changes in ice sheet mass balance. In particular, I have been focused on  advancing our understanding of how streaming ice flow in marine-terminating outlet glacial  systems on the Greenland Ice Sheet have responded to regional warming with an emphasis on shear margin dynamics. For more details select RESEARCH or PUBLICATION LINKS ON NAVIGATION BAR AT BOTTOM.

  • Investigated Antarctic Ice Shelf Surface Melt Processes

  • Studied changes in Antarctic Dry Valley Hydrologic Systems

  • Supported research in ice dynamics of west Antarctic Ice Streams

  • Studied Spatial and temporal variability of supraglacial hydrology on Greenland Ice Sheet

  • Examined relationships between surpaglacial hydrology, basal structure and surface topographic forcing on hydrology

  • Investigated impact of meltwater infiltration of shear margin dynamics of marine-terminating outlet glaciers on Greenland Ice Sheet

  • Supported kinematic field investigations of seasonal ice flow using embedded GPS


Research has been supported by numerous external, competitive grants primarily from :

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