I'm trying to calculate NDVI in ArcGIS for Desktop using MODIS to entire neotropical region but I can't find MODIS values for all neotropical.

Instead, I foud only for small regions.

Does someone know how to extract NDVI for large extensions at the same time?

  • 1
    Is this a data download question or data processing, can you clarify?
    – artwork21
    Nov 3, 2015 at 19:18

1 Answer 1


There is no MODIS data covering the entire neotropics (that´s quite a large area), but you can download several NDVI tiles from the MODIS data archive. I suggest you use the reverb.echo website (EOSDIS):


There you can draw either a polygon around the area you want or even upload a shapefile covering your desired extent. Then search for the MODIS NDVI product of your choice, set the time span and then look what´s there. I guess a lot of tiles. You will then have to modify all of them using the MRT tool (= MODIS reprojection tool). This allows you to preproject and merge all images in one folder into a coordinate system e.g. UTM or geographic coordinate system.

  • Thak you Jens! The information was very helpful Nov 4, 2015 at 15:23

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