Measures of drought

    Cards (3)

    • Palmer Drought Sensitivity Index (PDSI)

      Long term droughts, uses data from current and preceding months. Focuses on duration and intensity of large-scale, long-term, drought-inducing atmospheric circulation.
    • Crop Moisture Index (CMI)

      Short-term droughts, weekly scale, useful for farmers to monitor water availability during the growing season.
    • Palmer Hydrological Drought Index (PHDI)

      Measures hydrological impacts of drought (e.g., reservoir levels, groundwater levels, etc.) which take longer to develop and longer to recover from.