MODIS NDVI is calculated in the same way as before, namely the ratio between
reflectance in the near infrared (NIR)
and visible (VIS) regions:
NDVI = (NIR-VIS)/(NIR+VIS)
Healthy vegetation strongly reflects NIR radiation,
and absorbs VIS for driving photosynthesis.
Click here or below the map to get to the zoom maps at 500m full resolution.
Click for wet season MODIS images of
natural colors,
brightness,
greenness
and
wetness.
