http://kaos.erin.gov.au/sat_pics/ndvi.html
This page provides a video sequence of the Greenness Index. ERIN (Environmental Resources Information Network) routinely monitors the density of green plant cover over all Australia. This is carried out by using a 'Greenness Index' derived from satellite data. This index, properly termed the Normalized Difference Vegetation Index (NDVI), is derived from data obtained daily from the Advanced Very High Resolution Radiometer (AVHRR) carried on the U.S. National Oceanographic & Atmospheric Administration's satellites.