asterdataerdas-imaginendviraster
I am looking for a free Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) image that will let me to perform NDVI for the pilot crop health/soil moisture that can go as far back ten years or so.
It needs to have:
This will be in a small area somewhere near Albuquerque, NM.
ASTER scenes are not captured in a regular, repeating grid like the path/row system of Landsat. Instead, they are more scattered due to the much narrower swath (only 60 km versus 180 km for Landsat), off-nadir capture, and imagery tasking. You can see the scene boundaries in GLOVIS:
The listing of ASTER repositories has a number of other locations where you can search for scenes. I've used NASA REVERB since it's the only repository (as of a few years ago) that offered level 2 data to NASA-approved users. If you really want to have an offline directory of all ASTER scenes, you would probably have to crawl through the ASTER data pool at LPDAAC and create geometries in a shapefile/geodatabase based on the bounding box coordinates in the XML metadata files:
Three of the first sources that come to mind:
Or you could always download the free SRTM 30m data and create the hillshade yourself.
Best Answer
The NASA Reverb site (http://reverb.echo.nasa.gov/reverb/#utf8=✓&spatial_map=satellite&spatial_type=rectangle) lists ASTER data for download.
You can take a look there for your specific study site and time.