Surface roughness on the Greenland Ice Sheet from airborne laser altimetry
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Issue Date
1998-10-15Author
van der Veen, Cornelis J.
Krabill, William B.
Csatho, Bea M.
Bolzan, J. F.
Publisher
American Geophysical Union
Type
Article
Article Version
Scholarly/refereed, publisher version
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Show full item recordAbstract
High resolution airborne laser altimetry is used to determine the small-scale surface relief in central Greenland and estimate the contribution from spatial noise to stratigraphic records. The standard deviation of the surface roughness is 1.6 cm water equivalent, corresponding to a standard deviation of annual layer thickness of 2.3 cm we. This estimate agrees with an independent assessment of the spatial variability (2.5 cm we) based on nine shallow ice cores. The agreement suggests that the statistical nature of the surface in central Greenland remains unchanged throughout the year. By conducting airborne altimetry around proposed drilling sites, the expected noise level in the core can be evaluated and sites selected where this level is lowest.
Description
This is the published version, also available here: http://dx.doi.org/10.1029/1998GL900041.
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Citation
Van Der Veen, C. J., Krabill, W. B., Csatho, B. M., Bolzan, J. F. "Surface roughness on the Greenland Ice Sheet from airborne laser altimetry." Geophysical Research Letters. (1998) Volume 25, Issue 20, pages 3887–3890, 15 October 1998. http://dx.doi.org/10.1029/1998GL900041.
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