GDO Standardized Precipitation-Evapotranspiration Index ERA5, 9-month accumulation period (SPEI-9) (version 1.0.0)

Description

The 9-month Standardized Precipitation-Evapotranspiration Index (SPEI-9) is an indicator used to monitor meteorological drought based on precipitation and reference evapotransipration. Anomalies over 9-month accumulation periods. SPEI-9 serves as a proxy indicator for medium-term impacts, such as reduced stream flow and reservoir storage. The input data for calculating the SPEI-9 is ERA5 precipitation and temperature reanalysis.

Contact

Email: JRC-EMS-DROUGHT (at) ec.europa.eu

Contributors

European and Global Drought Observatories, EDO

How to cite

European Commission, Joint Research Centre (JRC) (2025): GDO Standardized Precipitation-Evapotranspiration Index ERA5, 9-month accumulation period (SPEI-9) (version 1.0.0). European Commission, Joint Research Centre (JRC) [Dataset] PID: http://data.europa.eu/89h/98d333e9-ef2a-410c-a430-ff6ebd2ada98

Keywords

CEMS Copernicus ERA5 European Drought Observatory Evapotranspiration Global Drought Observatory Precipitation SPEI Drought

Data access

Data Download Service URL

Use conditions: European Commission reuse notice
Access conditions: No limitations

URL

Standardized Precipitation-Evapotranspiration Index (SPEI) Factsheet

Use conditions: European Commission reuse notice
Access conditions: No limitations

Download

Factsheet

Publications

Publication

A Multi-scalar drought index sensitive to global warming: The Standardized Precipitation Evapotranspiration Index - SPEI

Vicente-Serrano S.M., Santiago Beguería, Juan I. López-Moreno, (2010) A Multi-scalar drought index sensitive to global warming: The Standardized Precipitation Evapotranspiration Index - SPEI. Journal of Climate 23: 1696-1718.

DOI

10.1175/2009JCLI2909.1

Geographic areas

World

Spatial coverage

GML

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GML

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WKT

POLYGON ((-180 90, 180 90, 180 -90, -180 -90, -180 90))

Temporal coverage

From date	To date
2012-01-01	N/A

Additional information

Published by: European Commission, Joint Research Centre
Created date: 2025-05-20
Modified date: 2025-05-20
Issued date: 2025-05-20
Landing page: https://drought.emergency.copernicus.eu/
Language(s): English
Data theme(s): Environment
Update frequency: monthly
Identifier: http://data.europa.eu/89h/98d333e9-ef2a-410c-a430-ff6ebd2ada98
Popularity