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ERA5-Drought: global drought indices based on ECMWF reanalysis

A comprehensive set of global drought indices (SPI, SPEI, SSMI) computed from ERA5 reanalysis data, providing consistent multi-indicator drought monitoring from 1950 onward.

doi.org

At a glance

Region
Global
Coverage
Global
Access
Free
Category
Research
Last updated
2025

What's inside

  • Drought Indices
  • Cryosphere
  • Climate Projections

What you can do with it

Typical work that data of this type supports.

  1. 01

    Drought indices

    Track SPI and SPEI style indices for declarations and relief.

    Because it has: Drought Indices

  2. 02

    Planning

    Plan reservoir releases and cropping for a dry year.

  3. 03

    Risk screening

    Screen projects and assets for climate risk.

    Because it has: Climate Projections

Where AI adds value

Ideas for machine learning and AI agents built on this kind of data.

  1. 01

    Onset forecasts

    Predict drought onset months ahead from climate signals.

  2. 02

    One risk score

    Combine many indices into a single, explainable risk score.

  3. 03

    Bias correction

    Correct and downscale climate model output for a site.

Machine access and documentation

Data paper

ERA5-Drought: global drought indices based on ECMWF reanalysis

Scientific Data 2025

Read the paper

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