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Metadata Glossary
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Environment Social and Governance (ESG) Data was updated on July 29, 2025
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Metadata Glossary
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Filtered Results: 10
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Code
EN.CLC.SPEI.XD
Indicator Name
Standardised Precipitation-Evapotranspiration Index
Long definition
The SPEI fulfills the requirements of a drought index since its multi-scalar character enables it to be used by different scientific disciplines to detect, monitor, and analyze droughts. Like the sc-PDSI and the SPI, the SPEI can measure drought severity according to its intensity and duration, and can identify the onset and end of drought episodes. The SPEI allows comparison of drought severity through time and space, since it can be calculated over a wide range of climates, as can the SPI.
Source
Global SPEI database (SPEIbase). https://spei.csic.es/database.html
Topic
Environment: Environment/climate risk & resilience
Periodicity
Annual
Statistical concept and methodology
The Global SPEI database, SPEIbase, offers long-time, robust information about drought conditions at the global scale, with a 0.5 degrees spatial resolution and a monthly time resolution. It has a multi-scale character, providing SPEI time-scales between 1 and 48 months.
Other notes
The data presented in the Sovereign ESG Data Portal is the 12-month time-scale.
License URL
https://datacatalog.worldbank.org/public-licenses#cc-by
License Type
CC BY-4.0
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