Earth Observation
The Global Information and Early Warning System on Food and Agriculture (GIEWS) monitors the condition of major foodcrops across the globe to assess production prospects. To support the analysis and supplement ground-based information, GIEWS utilizes remote sensing data that can provide a valuable insight on water availability and vegetation health during the cropping seasons. In addition to rainfall estimates and the Normalized Difference Vegetation Index (NDVI), GIEWS and FAO's CBC Division have developed the Agricultural Stress Index (ASI), a quick-look indicator for the early identification of agricultural areas probably affected by dry spells, or drought in extreme cases.

The Agricultural Stress Index System (ASIS) wins 2016 Geospatial World Excellence Award. Since October 2018, GIEWS Earth Observation website has been updated with the outputs of ASIS 2. Major improvements and extensions of ASIS 2.
Latest Update: Dekad 1 Dec 2018
Global
 
Countries
AfricaAsiaLatin America and CaribbeanEurope, North America and Oceania
  North Africa
Algeria  
Egypt  
Libya  
Morocco  
Tunisia  
  Western Africa
  Central Africa
  Eastern Africa
  Southern Africa
  CIS
  Far East
  Near East
  Caribbean
  Central America
  South America
  Europe
  North America
  Oceania