Stimulus details: meteorological drought

impact chain for meteorological drought (click any node to view details):
The term of meteorological drought focuses on precipitation considerably below average. Extended periods without rainfall (mostly month or years) or precipitation less than some particular percentage of 'normal' or average amounts are typical. In most cases a definition of meteorological droughts is dependant on the basis of the degree of dryness and the duration of dry spell. Usually meteorological droughts are identified by a number of days with precipitation less than a specific threshold. Additionally it is important to consider regional specifics due to the fact that atmospheric conditions are highly variable from region to region. In order to develop a framework for an integrated approach for drought monitoring and to improve the provision of early warnings on drought the Standard Precipitation Index (SPI) was developed. Based on standardization and the probability of recorded amounts of precipitation the SPI helps to indicate meteorological droughts globally.
related adaptation projects by sector:
click any diagram segment to browse the adaptation database for projects for the respective stimulus and sector.
related maps:
Drought frequency map viewer
The ci:grasp map pool comprises a large collection of maps for change on drought frequency (3 months scale).