ECMWF IFS ENS

The Integrated Forecasting System (IFS) is a global forecast model developed by ECMWF. ENS is an ensemble configuration of IFS, containing 51 ensemble members. IFS consists of a numerical model of the Earth system, which includes an atmospheric model at its heart, coupled with models of other Earth system components such as the ocean. The data assimilation system combines the latest weather observations with a recent forecast to obtain the best possible estimate of the current state of the Earth system.

dynamical.org republishes ECMWF IFS ENS as free, analysis-ready Icechunk Zarr archives — open them directly with Xarray, no GRIB wrangling or bulk downloads.

Forecasts

• ECMWF IFS ENS forecast, 15 day, 0.25 degreeecmwf-ifs-ens-forecast-15-day-0-25-degree
  time-optimized
  Global · 19 variables · 0.25 degrees

Data access

• STAC catalog (browse) — the machine-readable source of truth.
• AWS Open Data Registry entry · browse the S3 bucket