This fine resource from the University of Arizona is an interdisciplinary resource system for digital image and map data for the Sonoran desert region, including the U.S. Southwest and northern Mexico. Users will find instructional and outreach activities in remote sensing and spatial analysis on integrated regional assessments as well as a wealth of data (DRG, DEM, DOQQs) for use in their GIS.
In addition to countless research material and educational resources, users will find they are provided with access to plenty of data. Simply click on the "Images" link and you'll find more links leading to 24k, 100k, and 250k DRG, DEM, and imagery. Selecting one of these options will result in a map showing the USGS quads, clicking further reveals direct links to download the data along with metadata... nice!
Data is easy to find and presented in a simple, user-friendly display making access a breeze.
Need data for Arizona? ARIA is a must for your bookmarks... unfortunately the links to online tutorials were broken!
We suggest you also look into the GeoDIVA project - GeoDIVA is an engine in development that will form the basis of online applications developed at the Arizona Remote Sensing Center - http://www.geodiva.org/ GeoDIVA powers the RangeView app http://rangeview.arizona.edu/ (viewing, animating, and analyzing satellite imagery in order to monitor vegetation dynamics through time and across landscapes) providing apps developed using MODIS and AVHRR data.
This fine resource from the University of Arizona is an interdisciplinary resource system for digital image and map data for the Sonoran desert region, including the U.S. Southwest and northern Mexico. Users will find instructional and outreach activities in remote sensing and spatial analysis on integrated regional assessments as well as a wealth of data (DRG, DEM, DOQQs) for use in their GIS.
