dataset · USA

CAMELS (US)

CAMELS (US) (NCAR). Access: download. Formats: CSV, TXT. Resolution: 671 catchments. Coverage: USA. Pricing/licence: free.

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Data offered docs-verified: air temperature · runoff
Coverage docs-verified: Conterminous United States (CONUS), with the spatial domain extending into Canada and Mexico · 1979-10-01 to 2022-09-30
Resolution docs-verified: 4 km x 4 km grid
Formats docs-verified: netCDF4
Access docs-verified: Free download (per ENTRY); data licensed under CC BY 4.0; the docs require specific citations in publications

Use cases llm-inferred: Regional air temperature and runoff baseline for US hydrological model setup · Historical hydroclimate context for US water resources assessments · Meteorological forcing inputs for US catchment modelling studies
Audience llm-inferred: hydrologists · water resources engineers · climate analysts

Constraints llm-inferred: ENTRY and DOCS describe different datasets: ENTRY is 'CAMELS (US)' with 671 catchments and CSV/TXT formats, but the DOCS page at this URL describes CONUS404, a 4 km WRF model reanalysis in netCDF4. Verify the entry before publishing. · US-only coverage; not applicable to UK projects · Model output (WRF simulation), not observations · Very large: total volume 853.37 TB for the full dataset, so subsetting is needed · Access via xarray with the kerchunk engine; a Zarr copy is available on Microsoft Planetary Computer · Docs give two period descriptions: 1979-10 to 2022-09 as the temporal range, and water years 1980-2021 in the abstract · Mandatory citations for publications (GDEX dataset citation plus two CONUS404 references)

Verified 2026-10-16 (curl HTTP 200).

Metadata observed 14/10/2026 · research sweep: sweep-2026-10-16 (named: USA)