Normalized Difference Vegetation Index (NDVI) derived from 2015 National Agriculture Imagery Program (NAIP) data for the central Arizona region

This project calculates the Normalized Difference Vegetation Index
(NDVI) from 2015 National Agriculture Imagery Program (NAIP) imagery
(1-meter resolution) for the central Arizona region. Because of their
large size, data (as GeoTIFF files) for each survey year are provided
as fifteen individual tiles each comprising a portion of the overall
coverage area. An index of the relative position of each tile in the
coverage area is provided as a pdf, png, and kml where the tile index
contains a portion of the GeoTIFF file name (e.g., the relative
position of the data file NAIP_NDVI_CAP2015-0000000000-0000000000.tif
to the overall coverage area is identified by the index id
0000000000-0000000000 in the pdf, png, and kml index map). Javascript code used to process NDVI values is included with this
dataset. This data set is one in a series of NDVI and SAVI (Soil Adjusted
Vegetation Index) data sets for the central Arizona region spanning
multiple years (2010-2017). Related data are available through the
Environmental Data Initiative - see resouce listing in the methods of
this data set for references.