Earth Observation
Data Access, Image Services and Metadata
Maps/graphs/tabular data presented on this website are pre-processed, published-ready products, originated from the satellite imagery (raster format). All ASIS raster datasets (global extent, 1 km resolution, 1984-present, over 16, 000 layers) can be interactively visualized/analyzed at FAO Agro-informatics Platform (FAO AP) at this address: https://data.apps.fao.org/?lang=en&share=f-3af5703a-3b9f-4976-9d57-5391038c8674 or through ASIS ArcGIS Online at https://data.apps.fao.org/.

ASIS datasets have been published by FAO as Image Services (WMTS) that allow for further analysis in an array of third-party applications.The datasets also have been disseminated on Google Earth Engine (GEE). To request the access to ASIS asset on GEE, please send an email to [email protected], providing your GEE account. From 20 January 2026, some adjustments have been introduced to ASIS assets on GEE. Read details here: ASIS GEE asset adjustment note.

Other related Apps:
ASIS-FAO Agro-informatics Platform Integration API: https://data.apps.fao.org/giews-share-config-generator?help
Colab sample code to manipulate the ASIS assets on GEE: https://colab.research.google.com/drive/1eoRgd-AkLQkuSeW8FtcAkJk2QiPwuIBV?usp=sharing
Data license policy:
Creative Commons Attribution 4.0 International (CC-BY-4.0): https://creativecommons.org/licenses/by/4.0/;
Additional terms of use for datasets: https://www.fao.org/contact-us/terms/db-terms-of-use/en
Recommended citation: © FAO - Agricultural Stress Index System (ASIS), https://www.fao.org/giews/earthobservation/, [Date accessed]

System and datasets description
MetadataRead more
Agricultural Stress Index System (ASIS)  Advantages of ASIS
Seasonal Indicators (Agricultural Stress Index (ASI), Drought Intensity and Weighted Mean VHI for agricultural monitoring)   Differences among the indicators
Non-seasonal indicators (NDVI Anomaly, Vegetation Condition Index and Vegetation Health Index for vegetation monitoring)  Differences among the indicators
Crop/Pasture Phenology (Reference datasets used to calculate the seasonal indictors)   Important note

ASIS datasets metadata and data dissemination channel list
Dataset Name Dimension Metadata FAO AP ArcGIS GEE WMTS Download
Agricultural Stress Index (ASI) - Near Real Time (Dekadal)Dekad, Season, LCT*
Agricultural Stress Index (ASI) - Annual SummaryYear, Season, LCT
Historic Agricultural Drought Frequency (1984-2025)LCT, Season, PAL**
Drought Intensity (DI) - Near Real Time (Dekadal)Dekad, Season, LCT
Drought Intensity (DI) - Annual SummaryYear, Season, LCT
Weighted Mean Vegetation Health Index (Weighted Mean VHI) - Near Real Time (Dekadal)Dekad, Season, LCT
Weighted Mean Vegetation Health Index (Weighted Mean VHI) - Annual SummaryYear, Season, LCT
Vegetation Condition Index (VCI) - Near Real Time (Dekadal)Dekad
Vegetation Condition Index (VCI) - Monthly SummaryMonth
Vegetation Health Index (VHI) - Near Real Time (Dekadal)Dekad
Vegetation Health Index (VHI) - Monthly SummaryMonth
Crop/Pasture Phenology - Start/Maximum/End of SeasonSeason, STAGE***, LCT
Crop/Pasture Phenology - Progress of SeasonLCT, Season, Dekad
*LCT: Land Cover Type; ** PAL: Percentage of Affected Land; ***STAGE: Stage of Growing Season