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    Greenland Ice Sheet response to external forcing

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    VanderveenC_JGR_106(D24)34047.pdf (1.317Mb)
    Issue Date
    2001-12-01
    Author
    van der Veen, Cornelis J.
    Publisher
    American Geophysical Union
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Metadata
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    Abstract
    Kinematic wave modeling is used to evaluate possible responses of the Greenland ice sheet to changes in its surface mass balance. In the approach followed here the reference state is defined based on measured velocity and discharge flux along the central flow line of Petermann Glacier in the northwest, and perturbations on this state are considered. The results indicate that significant rates of thickness change can occur immediately after the prescribed change in surface mass balance but adjustments in flow rapidly diminish these rates to a few centimeters per year at most. Full adjustment of the ice sheet requires times of the order of 1000 years. The instability mechanism known as the Jakobshavn Effect is discussed and, based on observational evidence as well as results from prior modeling studies, it is concluded that this is an unlikely mechanism for destabilizing major drainage basins of the Greenland ice sheet.
    Description
    This is the published version, also available here: http://dx.doi.org/10.1029/2001JD900032.
    URI
    http://hdl.handle.net/1808/17327
    DOI
    https://doi.org/10.1029/2001JD900032
    Collections
    • Geography & Atmospheric Science Scholarly Works [201]
    Citation
    Van Der Veen, C. J. "Greenland Ice Sheet response to external forcing." Journal of Geophysical Research. (2001) 106, D24. pp 34,047 - 34,058. http://dx.doi.org/10.1029/2001JD900032.

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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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