Hydrological Drought Index; ratio of precipitation to evapo(trans)piration over the past 3 dekads [%]. It is a measure of the water amount that remains available for deeper percolation or surface runoff.
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• Very low [<50%]
• Moderately low [50% to 75%]
• Slightly low [75% to 100%]
• Slightly high [100% to 125%]
• Moderately high [125% to 150%]
• Very high [>150%]

Meteorological Drough Index; cumulative precipitation over cumulative potential evapotranspiration over the past 3 dekads [%]. It indicates whether precipitation is able to supply sufficient water for optimum plant growth.
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• Very low [<50%]
• Low [50% to 100%]
• Mid range [100% to 150%]
• High [150% to 200%]
• Very high [>200%]

Hydrological Drought Index of the past 3 dekads compared to the average HDI of the same dekads over the past 10 years [%].
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• Undefined
• Much lower [<-50%]
• Moderately lower [-50% to -25%]
• Slightly lower [-25% to 0%]
• Slightly higher [0% to 25%]
• Moderately higher [25% to 50%]
• Much higher [>50%]

Meteorological Drought Index of the past 3 dekads compared to the average MDI of the same dekads over the past 10 years [%].
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• Undefined
• Much lower [<-50%]
• Moderately lower [-50% to -25%]
• Slightly lower [-25% to 0%]
• Slightly higher [0% to 25%]
• Moderately higher [25% to 50%]
• Much higher [>50%]

Agrometeorological maps