You can download sample digital FIRM maps here. There is a charge to aquire the full dataset. FIRM is a flood insurance rate map.
a2a_linkname=”Sample FEMA digital FIRM Maps”;
a2a_linkurl=”http://geoserf.com/?p=20″;
Monthly modeled climate data from the oregon state prism project. Comes in both image and ASCII grid format. Can be easily imported into Arcview/Arcinfo using ASCIIGRID command:
http://www.prism.oregonstate.edu/products/matrix.phtml?vartype=tmax&view=data
a2a_linkname=”Prism Climate Data”;
a2a_linkurl=”http://geoserf.com/?p=16″;
The following link contains shapefiles for download containing native range/distribution areas for various North American trees and plants.
“Maps of the ranges of tree species in North America compiled by Elbert Little, of the U.S. Department of Agriculture, Forest Service, and others (see references below) were digitized for use in USGS’ vegetation-climate modeling studies. These digital [...]