Meteorological drought index calculation method and device, computer equipment and storage medium

• Main Authors: PAN YANHUA, PAN YONGDI
• Format: Patent
• Language: Chinese; English
• Published: 24.05.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; MEASURING; METEOROLOGY; PHYSICS; TESTING

The invention belongs to the technical field of meteorological drought monitoring and evaluation, and relates to a meteorological drought index calculation method and device, computer equipment and a storage medium, and the method comprises the steps: building a drought level maintenance line on a coordinate plane of cumulative precipitation and cumulative water surface evaporation; determining a cumulant starting day corresponding to the maximum distance point as a starting day for calculating the cumulative precipitation and the cumulative water surface evaporation according to the dynamic distance from the cumulative precipitation and the cumulative water surface evaporation coordinate point to the drought grade maintenance line through rolling calculation; calculating a drought index according to the distance from a coordinate point determined by the cumulative precipitation amount and the cumulative water surface evaporation amount calculated on the starting day to each drought grade maintenance line; an