Working with .tar files and imagery

When downloading imagery (Landsat, IKONOS, ASTER, SRTM, etc) I continually encounter the .tar extension/format of compressed datasets. 7-zip is a great (light and free) package to use.

7-zip.org

Select all .tar files in the directory to be extracted, right click, and choose "Extract Here" from the 7-Zip menu:


[Click to enlarge]

Newer versions of WinZip have .tar support as well, though this utility is pretty quick and efficient.

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These are a few of the resources I have been using to obtain remote sensing imagery:

Global Land Cover Facility (Free)
http://glcf.umiacs.umd.edu/data

USGS Landsat Web Site (Free now)
http://landsat.usgs.gov

NASA Earth Sci Grad Student Fellowship Program for RS
http://nspires.nasaprs.com