Normalized Difference Vegetation Index for Andalusia Region based on MODIS

<strong>Normalized Difference Vegetation Index</strong> (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. <br> 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<br> format: GeoTiff<br> 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 – Grape Wine sector, WP4- Durum wheat pasta sector) AoI: Andalusia, Douro Valley. Index: NDVI, NMDI, NDWI Example: 20000218_medgold_wp2_andalusia_MOD09A1_ndvi