![](imgs/rs.JPG) | R.V. Hoolst, H. Eerens, etc, 2016: FAO’s AVHRR-based Agricultural Stress Index System (ASIS) for global drought monitoring
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![](imgs/ASIS2.png) | FAO GIEWS, 2018: Major improvements and extensions of ASIS 2
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![](imgs/Ref_1.JPG) | O. Rojas, A. Vrieling b, F. Rembold, 2011: Assessing drought probability for agricultural areas in Africa with coarse resolution
remote sensing imagery |
![](imgs/Meroni.JPG) | 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
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