Normalized Difference Vegetation Index for Douro Valley based on MODIS

Normalized Difference Vegetation Index (NDVI) calculated using MODIS09 imagery provided by USGS/EROS.The original MODIS09 bands were used as data source and then the ndvi was calculated. 

NDVI quantifies vegetation by measuring the difference between near-infrared and red light (which vegetation absorbs). NDVI is a standardized way to measure healthy vegetation. High NDVI values indicates healthy vegetation.

Each compressed file contains the NDVI by years. Internally each file have an ISO TC 211 metadata with a complete geographical description.

spatial resolution: 463.313m
format: GeoTiff
reference system:SR-ORG 6842

To easily manage the data, each file follow name structure:

YYYYMMDD_medgold_workpackage_AoI_sensor_index.

YYYYMMDD: Imagery acquisition date

medgold: Project name

sensor: sensor name

workpackage: sectorial workpackage name ( WP2 - Olive Oil Sector, WP3 – Wine Grape sector, WP4-  Durum wheat pasta sector)

Aoi: Andalusia, Douro Valley.

Index: NDVI, NMDI, NDWI

Example:

20000218_medgold_wpe_douro_MOD09A1_ndvi