Normalized Difference Vegetation Index (NDVI) derived from MODIS data is provided here on a 16 day basis for the conterminous United States. The original band files used to derive the NDVI are also available and a band file with cloud information (for data from 2001 to the present). Data are in GeoTIFF and have been projected to Alber's. See http://glcfapp.umiacs.umd.edu:8080/esdi/product?productID=19