Note: This figure was provided courtesy of NASA and Earth Observatory, who are the owners of this image.
BACK
| News and Views |
|
| Figure 4. This image shows how vegetation patterns in August 1993 differed from a 20 year average. Vegetation density was measured monthly with satellite images and then the vegetation density from August 1993 was compared to the average. Green areas show where extra rainfall has resulted in lush vegetation and brown areas are where low rainfall has caused less growth. This type of data can be used to measure drought severity. You can read about this study at http://earthobservatory.nasa.gov/Library/MeasuringVegetation/measuring_vegetation_3.html. Note: This figure was provided courtesy of NASA and Earth Observatory, who are the owners of this image. BACK |
| © Copyright 2006 by The American Phytopathological Society |