dataset · USA
EPA Dynamically Downscaled Ensemble (EDDE) Version 2
The data are a subset of the EPA Dynamically Downscaled Ensemble (EDDE), Version 2. EDDE is a collection of physics-based modeled data that represent 3D atmospheric conditions for historical and future periods under different scenarios. The EDDE Version 2 datasets cover the contiguous United States at a horizontal grid spacing of 12 kilometers at hourly increments. EDDE Version 2 includes simulations that have been dynamically downscaled from multiple global climate models (GCMs) under multiple
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Licence: These datasets are products of the U.S. Government and are intended for public access and use. Unless otherwise specified, all data produced by the U.S EPA is, by default, in the public domain and are
Evidence quality: 49.3
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
- 3D atmospheric conditions (physics-based modelled data) · near-surface air temperature · near-surface relative humidity · near-surface specific humidity · precipitation · radiation
- Coverage docs-verified
- contiguous United States · historical 1985-2014; future 2025-2100 under SSP2-4.5 and SSP3-7.0
- Resolution docs-verified
- 12 km horizontal grid spacing; hourly increments
- Update frequency docs-verified
- Quarterly
- Formats docs-verified
- netCDF4
- Access docs-verified
- Free and open; no AWS account required (anonymous S3 access via aws s3 ls --no-sign-request); US Government work in the public domain (US Public Domain label 1.0)
Useful for
- Use cases llm-inferred
- Historical 1985-2014 baseline climate conditions for a US site assessment · Future precipitation and temperature scenario comparison (SSP2-4.5 vs SSP3-7.0, 2025-2100) for US projects · Hourly near-surface temperature and humidity inputs for US heat-stress or evaporation analysis · Climate-change context for US environmental impact or resilience studies
- Audience llm-inferred
- climate scientists · hydrologists · environmental consultants · GIS analysts · atmospheric modellers
Limitations
- Constraints llm-inferred
- Contiguous United States only; no UK coverage · Two GCMs only (MPI-ESM1-2-HR, NorESM2-MM) and two SSP scenarios · Future period limited to 2025-2100 · Quarterly updates, not near-real-time · Requires netCDF/CF-aware tooling; no query API, bulk file access only
Evidence
- arn:aws:s3:::epa-edde-v2, arn:aws:sns:us-east-1:127085394039:epa-edde-v2-object_created
- https://registry.opendata.aws/epa-edde-v2/
Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.