hi I think i can help you, i have some map of extent of ice in pleistocene (shp. for poland area). I can also ask my colleague who is specialist of Pleistocene geology about maps for europe. best maciej
p.s. SHP file i will send you separately Maciej Tomaszczyk Polish Geological Institute Geological Mapping Department -----Wiadomość oryginalna----- Od: [EMAIL PROTECTED] w imieniu Michael Barton Wysłano: Wt 2007-10-16 19:02 Do: GRASS developers list; grassuser Temat: [GRASS-user] Looking for GIS maps of Pleistocene glaciers Thanks to the various people who helped me find bathymetry in order to create a map of Europe during the Late Pleistocene. Now for a more difficult question. We1d like to mask out areas covered by ice caps for our cost surface analysis and models. I1ve found various images of the extent of ice sheets in Europe, but no georectified, reasonably accurate DEM or vector maps of the ice<primarily the Baltic ice sheet and Alpine ice cap. Has anyone run across such maps? The best I1ve found so far are published on the Quaternary Environment Network site <http://www.esd.ornl.gov/projects/qen/nerc.html>, but are simply images and rather coarse ones at that. These are so coarse that I fear that digitizing and georectifying these would be highly inaccurate and make our results equally problematic. I know that there has been a lot of mapping of the ice margins in Europe as well as North America, but can1t find any GIS data for it. Michael __________________________________________ Michael Barton, Professor of Anthropology Director of Graduate Studies School of Human Evolution & Social Change Center for Social Dynamics and Complexity Arizona State University phone: 480-965-6213 fax: 480-965-7671 www: http://www.public.asu.edu/~cmbarton
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