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CAMELS-H: A large-sample hourly hydrometeorological dataset for CONUS watersheds

First large-sample hourly hydrometeorological dataset for 9,008 US catchments (1980-2024) with 11 meteorological variables, 9 climate indices, and comprehensive watershed attributes.

doi.org

At a glance

Region
North America
Coverage
North America
Access
Free
Category
Research
Last updated
2025

What's inside

  • Streamflow
  • Catchment Data

Terms explained

What you can do with it

Typical work that data of this type supports.

  1. 01

    Design flows

    Estimate 1-in-50 and 1-in-100 year floods for bridges, culverts and spillways.

    Because it has: Streamflow

  2. 02

    Low flows

    Set environmental flows and check what is left in the river in a dry year.

  3. 03

    Risk screening

    Screen projects and assets for climate risk.

Where AI adds value

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

  1. 01

    Flow forecasting

    Train LSTM-style models on past records to forecast river levels and flow days ahead.

  2. 02

    Ungauged basins

    Combine with catchment data to estimate flow where there is no gauge.

  3. 03

    Bias correction

    Correct and downscale climate model output for a site.

Machine access and documentation

Data paper

CAMELS-H: A large-sample hourly hydrometeorological dataset for CONUS watersheds

Scientific Data 2025

Read the paper

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