Below are resources for remote sensing and GIS Data. The first stop for New Mexico imagery and GIS data should be the New Mexico Resource Geographic Information System Program (RGIS). The imagery housed at RGIS is largely high-resolution data such as those collected through the statewide digital orthophotography program and National Agricultural Imagery Program (NAIP).
For Landsat imagery we recommend using the USGS Global Visualization Viewer (GloVIS). If you use GloVis don't forget to view the AmericaView video tutorial on how to query and download Landsat imagery using GloVis then visualize it using ArcGIS.
MODIS Cloudfree Mosaic of the US | Earth Science Data Interface:
These images are seamless, georectified, and available for download from the Space Science and Engineering Center at the University of Wisconsin. The archive usually goes back about a week.
Download an image from here ftp://ftp.ssec.wisc.edu/pub/eosdb/brdf/
Global Land Cover Facility | Earth Science Data Interface:
The Earth Science Data Interface is the GLCF's web application for searching, browsing, and downloading data from their online holdings. Remote sensing data includes: Landsat (TM, ETM, MSS, ALI), ASTER, Elevation Data (SRTM), MODIS image products, AVHRR Products, and other products
Sources of data are listed below (send additional sources of data to firstname.lastname@example.org