wiki:WikiStart/IceSheetRepresentation.html
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Version 5 (modified by iulian, 13 years ago) (diff)

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Surface Elevation Data

Primary source of data for the surface of Jakobshavn glacier is CReSIS ​https://www.cresis.ku.edu/data/greenland

The grid with elevation data is triangulated with ​Triangle

A rendered surface is shown in ​VisIt, color corresponding to surface elevation. This initial model has ~5 million points and ~10 million triangles.

A zoomed in portion shows the resolution of the initial mesh

Bed Elevation below the glacier is obtained also from the CReSIS site, in long/lat coordinates. ​GDAL package is used to convert to Universal Transverse Mercator coordinates (zone UTM 22N ).

The ice occupies a volume between the bed and the surface.

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