FLEXPART-IFS EWC Blueprint

Deploy FLEXPART-IFS on the European Weather Cloud (EWC).

Note: This blueprint is supported and tested only on the ECMWF side of the European Weather Cloud.

ECMWF MARS → flexprep → FLEXPART-IFS → Pyflexplot → PDF plots

Deploy with EWCCLI

Use an ECMWF-side EWCCLI profile. For custom-catalog deployment, use EWCCLI 0.7.1 or newer:

ewc login
ewc hub \
  --path-to-catalog ./catalog/custom_catalog.yml \
  deploy flexpart-ifs \
  --flavour-name 8cpu-16gbmem-80gbdisk

The workflow has been tested with 8 vCPU, 16 GiB RAM and 80 GB storage. Smaller flavours may not provide enough resources for FLEXPART-IFS runs.

Configure MARS

On the VM, add your personal ECMWF credentials to the workflow operator's:

~/.ecmwfapirc

Your ECMWF account must have access to the required IFS data.

Run

flexpart-workflow --latest --step 24 --location BEZ

For a reproducible forecast cycle:

flexpart-workflow --date 20260810 --time 00 --step 24 --location BEZ

--location is a predefined FLEXPART release site.

Results

PDF plots are written to:

/var/lib/flexpart-ifs/plots

License

The deployment code and documentation are licensed under the Apache License 2.0. Deployed components retain their own licences; see THIRD_PARTY_LICENSES.md.