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Agricultural Stress Index System (ASIS) - FAO Global Agricultural Drought Monitoring System
Agricultural Stress Index System (ASIS) is a global agricultural drought monitoring system developed and operated by United Nations Food and Agricultural Organization (UN FAO). It combines the... -
Weighted Mean Vegetation Health Index (Weighted Mean VHI) Annual Summary (Global - Annual - 1 Km) - ASIS
The Weighted Mean Vegetation Health Index (Weighted Mean VHI) allows the user to assess the severity of the drought from the start of the growing season, examining the vegetation health and the... -
Vegetation Condition Index (VCI) - Near Real Time (Global - Dekadal - 1 Km)
The Vegetation Condition Index (VCI) evaluates the current vegetation health in comparison to the historical trends. The VCI relates current dekadal Normalized Difference Vegetation Index (NDVI)... -
Drought Intensity (DI) - Near Real Time (Global - Dekadal - 1 Km)
Complementary to Agricultural Stress Index (ASI) which detects the severe and extreme drought, Drought Intensity is another quick-look indicator in ASIS that facilitates the early understanding of... -
Crop/Pasture Phenology: Growing Seasons (Global - 1Km)
Phenology is defined as the study of the timing of recurring biological cycles and their connection to the climate. Changes in the vegetation phenology, including the start of season, the length of... -
Weighted Mean Vegetation Health Index (Weighted Mean VHI) Near Real Time (Global - Dekadal - 1 Km) - ASIS
The Weighted Mean Vegetation Health Index (Weighted Mean VHI) allows the user to assess the severity of the drought from the start of the growing season, examining the vegetation health and the... -
Historic Agricultural Drought Frequency (Global - 1 Km) - ASIS
Historic Agricultural Drought Frequency Maps depict the frequency of severe drought in areas where 30 percent/50 percent of the cropland/grassland has been affected. The historical frequency of... -
GIEWS Crop Calendar
The Global Information and Early Warning System on Food and Agriculture (GIEWS) continuously monitors food supply and demand and other key indicators for assessing the overall food security... -
Crop/Pasture Phenology: Progress of Season (Global - 1 Km)
Crop/Pasture Phenology is a reference dataset used by ASIS. Phenology is defined as the study of the timing of recurring biological cycles and their connection to the climate. Changes in the... -
Vegetation Health Index (VHI) - Monthly Summary (Global - Monthly - 1 Km)
The Vegetation Health Index (VHI) illustrates the severity of drought based on the vegetation health and the influence of temperature on plant conditions. The VHI is a composite index and the... -
Vegetation Health Index (VHI) - Near Real Time (Global - Dekadal - 1 Km)
The Vegetation Health Index (VHI) illustrates the severity of drought based on the vegetation health and the influence of temperature on plant conditions. The VHI is a composite index and the... -
Vegetation Condition Index (VCI) - Monthly Summary (Global - Monthly - 1 Km)
The Vegetation Condition Index (VCI) evaluates the current vegetation health in comparison to the historical trends. The VCI relates current dekadal Normalized Difference Vegetation Index (NDVI)... -
Drought Intensity (DI) - Annual Summary (Global - Annual - 1 Km)
Complementary to Agricultural Stress Index (ASI) which detects the severe and extreme drought, Drought Intensity is another quick-look indicator in ASIS that facilitates the early understanding of... -
Agricultural Stress Index (ASI) - Annual Summary (Global - Annual - 1 Km)
The Agricultural Stress Index (ASI) is a quick-look indicator that facilitates the early identification of cropped land with a high likelihood of water stress (drought). ASI related products (maps,... -
Non-Seasonal Indicators
ASIS non seasonal indictors include: NDVI anomaly, Vegetation Condition Index (VCI) and Vegetation Health Index (VHI). These indices can be used to monitor the areas where vegetation may be... -
Agricultural Stress Index (ASI) - Near Real Time (Global - Dekadal - 1 Km)
Agricultural Stress Index (ASI) - Near Real Time is a quick-look indicator that facilitates the early identification of cropped land with a high likelihood of water stress (drought). It depicts the... -
Crop/Pasture Phenology
Crop/Pasture phenology is very important reference information to calculate the seasonal indictors in ASIS. As the calculation of seasonal indictors (ASI, Drought Intensity and Mean VHI) includes... -
Seasonal Indicators
Seasonal indicators are designed to allow easy identification of areas of cropped land/grassland with a high likelihood of water stress (drought). The indicators are based on remote sensing data of...
