dataset · Global
Icechunk ERA5
<b>An analysis-ready, cloud-optimized (ARCO) edition of ERA5, the fifth-generation global reanalysis from the Copernicus Climate Change Service (C3S) at ECMWF. Provided as a single Icechunk + Zarr v3 store on AWS S3, this version enables efficient, scalable access to global reanalysis data for weather, climate, and ML/AI applications. Managed by [Earthmover](https://earthmover.io).</b> <br /><br /> ERA5 provides hourly estimates of atmospheric, land-surface, and ocean variables from 1940 to 2025
Visit source ↗Source details
Licence: Creative Commons Attribution 4.0 International (CC-BY 4.0) - https://creativecommons.org/licenses/by/4.0/
Evidence quality: 51.7
Listed in aws-odr public catalogue API on 2026-10-16; relevance/value screened (haiku).
Metadata checked: 2026-10-14T13:20:00.000Z
What's in it
- Data offered docs-verified
- hourly atmospheric variables · hourly land-surface variables · hourly ocean variables · 35 single-level (surface) variables · 8 pressure-level variables on 13 isobaric levels (50–1000 hPa) · curated 500 hPa geopotential slice
- Coverage docs-verified
- Global · 1940 to 2025
- Resolution docs-verified
- ~31 km (0.25°) global latitude-longitude grid; hourly
- Update frequency docs-verified
- Quarterly (every three months)
- Formats docs-verified
- Icechunk · Zarr v3
- Access docs-verified
- Free and open, CC-BY 4.0 licence; anonymous read from public AWS S3 bucket, no AWS account required
Useful for
- Use cases llm-inferred
- Historical climate context for drought or extreme-event review on a project site · Gridded meteorological inputs for ML/AI prototyping of rainfall or temperature models · Coarse-scale regional time series extraction for water balance or hydrological model forcing checks
- Audience llm-inferred
- hydrologists · flood risk consultants · climate and environmental consultants · GIS analysts · data scientists and ML engineers
Limitations
- Constraints llm-inferred
- Quarterly updates only, not near-real-time; the daily low-latency ERA5T version is a paid product · Coarse ~31 km grid, not suitable for site-scale analysis without downscaling · Data ends in 2025; no current-year coverage on this edition · Curated variable subset (35 single-level, 8 pressure-level); confirm the needed variable is included
Evidence
- arn:aws:s3:::earthmover-icechunk-era5/icechunkV2, arn:aws:sns:us-east-1:871265417473:earthmover-icechunk-era5-object_created
- https://registry.opendata.aws/earthmover-era5/
Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.