Hydrologic Sub-basins of GreenlandEntry ID: NSIDC-0371
Abstract: The Hydrologic Sub-basins of Greenland data set contains Geographic Information System (GIS) polygon shapefiles that include 293 hydrologic sub-basins of the Greenland Ice Sheet, as created by Lewis and Smith (2009). Five km Digital Elevation Models (DEMs) of ice-surface and bedrock topography (Bamber et al. 2001) were used to estimate the hydraulic potentiometric surface for Greenland, which ... accounts for the effects of ice overburden pressure, such as hydrostatic pressure, surface topography, and underlying bedrock topography (Paterson 1994). Using the 5 km potentiometric grid, a modeled basin network for Greenland's ice sheet was created using the hydrological tools within ESRI ArcGIS (ArcInfo 9.2). Although the GIS initially generated more than 293 basins, basins less than 100 km2 in size, as well as basins located completely outside of the ice sheet extent, were removed from the data set. Data are available via FTP, and can be read in any GIS software.
The following journal article provides documentation for this data set: Lewis, Sarah and Laurence Smith. 2009. Hydrologic Drainage of the Greenland Ice Sheet. Hydrological Processes DOI: 10.1002/hyp.7343. This journal article can be accessed from the Access External Documentation link at the top of this Web page.
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Data Set Citation
Dataset Originator/Creator: Sarah Lewis
Dataset Title: Hydrologic Sub-Basins of Greenland
Dataset Release Date: 2009-06-05
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: National Snow and Ice Data Center (NSIDC)Online Resource: http://nsidc.org/data/nsidc-0371.html
ISO Topic Category
Data Set Progress
Distribution Media: FTP
Distribution Size: 1 KB to 253 KB
Distribution Format: ESRI polygon shapefiles
Email: sarahlewis at berkeley.edu
UC Berkeley Geography Department 122 Mulford Hall #3114
Province or State: CA
Postal Code: 94720-3114
Bamber, J. L., R. L. Layberry, and S. P. Gogenini. 'A new ice thickness and bed data set for the Greenland ice sheet 1: Measurement, data reduction, and errors,' Journal of Geophysical Research, 106: (D24) 33,773-33,780, 2001. Lewis, S., L. Smith. Hydrologic Drainage of the Greenland Ice Sheet. Hydrological Processes, 2009. DOI: 10.1002/hyp.7343 Paterson WSB. 1994. The Physics of Glaciers, 3rd edn. Pergamon Press: Oxford.
Creation and Review Dates
DIF Creation Date: 2009-06-02
Last DIF Revision Date: 2011-03-08