Earth Observation
GIEWS

Methodology and Progress Reports Data source
R.V. Hoolst, H. Eerens, etc, 2016: FAO’s AVHRR-based Agricultural Stress Index System (ASIS) for global drought monitoring
FAO GIEWS, 2018: Major improvements and extensions of ASIS 2
O. Rojas, A. Vrieling b, F. Rembold, 2011: Assessing drought probability for agricultural areas in Africa with coarse resolution remote sensing imagery
M.Meroni, D.Fasbender, etc, 2014: Early detection of biomass production deficit hot-spots in semi-arid environment using FAPAR time series and a probabilistic approach
 
ENDVI/NDVI
EUMETSAT Metop (2007-present): ENDVI10 has been provided by the EUMETSAT Satellite Application Facility on Land Surface Analysis: http://lsa-saf.eumetsat.int
NOAA-AVHRR (1984-2006): NDVI 1 km resolution product was derived from the NOAA-AVHRR dataset at 16 km resolution: http://www.star.nesdis.noaa.gov/smcd/emb/vci/VH/vh_browse.php
 
Precipitation
ECMWF:http://mars.jrc.ec.europa.eu/mars/About-us/FOODSEC/Data-Distribution
RFE:https://earlywarning.usgs.gov/fews/datadownloads
 
Maps
Boundary maps: GAUL 2014 (DISCLAIMERS). More information on GAUL: https://data.apps.fao.org/catalog/dataset/global-administrative-unit-layers-gaul-2015
 
Crop mask
Crop mask: Global Land Cover - SHARE (GLC-SHARE)
User manual and training materials
Video: Agricultural Stress Index System - ASIS
 
GIEWS Earth Observation website: A brief user guide
Video: El Niño Phenomenon and its effects on agriculture
 
Country-Level ASIS: an agriculture drought monitoring system


Related links
Handbook on climate information for farming communities – What farmers need and what is available
FAO's work on Geospatial
E-learning course: Hyper-temporal remote sensing to support agricultural monitoring
Crop Water Information
FAO Irrigation and drainage paper 56: Crop evapotranspiration - Guidelines for computing crop water requirements