ECMWF IFS Analysis N320 - Beyond Weather Icechunk Zarr

Description

The ECMWF Integrated Forecasting System (IFS) operational analysis, every 6 hours from 2011 to 2024, on the native N320 reduced Gaussian grid (542,080 points, about 31 km). It contains a selection of variables: 6 upper-air variables on 18 pressure levels, 18 surface variables, and the land-sea mask and orography of each IFS cycle. This is the input set of data-driven weather models such as ECMWF's AIFS, for training, fine-tuning and verification. Stored as versioned Icechunk Zarr, chunked by timestep for fast random access.

Update Frequency

Not currently updated. The archive covers 2011-01-01 to 2024-12-31.

License

Creative Commons Attribution 4.0 International (CC BY 4.0), following the ECMWF terms of use. Copyright © 2011-2024 European Centre for Medium-Range Weather Forecasts (ECMWF). Source: www.ecmwf.int. ECMWF does not accept any liability whatsoever for any error or omission in the data, their availability, or for any loss or damage arising from their use. Modified by Beyond Weather: selection of variables and levels, conversion from GRIB to Icechunk Zarr, and lossy bit rounding.

Documentation

https://github.com/Beyond-Weather-Git/open-data-examples/blob/main/ifs-analysis-n320/README.md

Managed By

Beyond Weather

See all datasets managed by Beyond Weather.

Contact

https://github.com/Beyond-Weather-Git/open-data-examples/issues

How to Cite

ECMWF IFS Analysis N320 - Beyond Weather Icechunk Zarr was accessed on DATE from https://registry.opendata.aws/beyond-weather-ecmwf-ifs-analysis. Contains modified ECMWF IFS operational analysis data, Copyright © 2011-2024 European Centre for Medium-Range Weather Forecasts (ECMWF), www.ecmwf.int, licensed under CC BY 4.0.

Usage Examples

Tutorials

• Get To Know A Dataset: ECMWF IFS Analysis N320 - Beyond Weather Icechunk Zarr by Beyond Weather
  
  

Tools & Applications

• Anemoi - framework for data-driven weather forecasting by ECMWF and partners
  
• earthkit-regrid - regridding of reduced Gaussian grids by ECMWF
  
• icechunk by Earthmover
  
• xarray by xarray Developers
  

Publications

• Changes to the forecasting system (IFS cycle history) by ECMWF
  
• IFS Documentation by ECMWF