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    Subglacial topography and geothermal heat flux: potential interactions with drainage of the Greenland ice sheet

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    VanderveenC_GRL_34(12)L12501.pdf (203.4Kb)
    Issue Date
    2007-06-05
    Author
    van der Veen, Cornelis J.
    Leftwich, T.
    von Frese, R.
    Csatho, Bea M.
    Li, Jilu
    Publisher
    American Geophysical Union
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Metadata
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    Abstract
    [1] Many of the outlet glaciers in Greenland overlie deep and narrow trenches cut into the bedrock. It is well known that pronounced topography intensifies the geothermal heat flux in deep valleys and attenuates this flux on mountains. Here we investigate the magnitude of this effect for two subglacial trenches in Greenland. Heat flux variations are estimated for idealized geometries using solutions for plane slopes derived by Lachenbruch (1968). It is found that for channels such as the one under Jakobshavn Isbræ, topographic effects may increase the local geothermal heat flux by as much as 100%.
    Description
    This is the published version, also available here: http://dx.doi.org/10.1029/2007GL030046.
    URI
    http://hdl.handle.net/1808/17298
    DOI
    https://doi.org/10.1029/2007GL030046
    Collections
    • Environmental Studies Scholarly Works [62]
    • Geography & Atmospheric Science Scholarly Works [197]
    Citation
    van der Veen, C. J., T. Leftwich, R. von Frese, B. M. Csatho, and J. Li (2007), Subglacial topography and geothermal heat flux: Potential interactions with drainage of the Greenland ice sheet, Geophys. Res. Lett., 34, L12501, http://dx.doi.org/10.1029/2007GL030046.

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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