Parent Layer: Water security

Name: Reduction Runoff Drought normalized

Display Field:

Type: Raster Layer

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Description: By definition, drought reduces the supply of water. However, the impact of this reduction varies across the landscape and is directly influenced by vegetative demand. The Reduction in Runoff During Extreme Drought indicates the potential reduction in surplus water during a drought. Extreme drought is defined as a 48-month period where the Standardized Precipitation Index (SPI, NCAR 2022) is 2.5 standard deviations below the long-term mean (SPI-48 = -2.5). Larger values indicate more severe reductions.----------------This raster has been modified from the base 30m version in the following ways:-------- - It has been aggregated from a 30m to a 300m scale by averaging across the 30m values----------------- Unit Of Measure: mm/y

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