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. We’d like to mask out areas covered by ice caps for our cost surface analysis and models. I’ve 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 I’ve 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 can’t 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