ERA5 is a commonly used reanalysis data product. For more, see
Hersbach, H., Bell, B., Berrisford, P., Hirahara, S., Horányi, A., Muñoz‐Sabater, J., et al. (2020). The ERA5 global reanalysis. Quarterly Journal of the Royal Meteorological Society, 146(730), 1999–2049. https://doi.org/10.1002/qj.3803
At the moment this repository stores:
- meridional and zonal wind at 500 hPa
- surface air temperature
- elevation (time-invariant, called geopotential)
- vertical integral of meridional and zonal water vapor flux
but it's trivially easy to add more variables by modifying the configuration file (see below)
- the domain in time and space is defined in
era5_config.yml - the conda environment is defined in
era5_conda.yml - the Snakemake workflow is defined in
era5.smk
You need to have an ECMWF API key. See here. This is installed on the computer that runs this workflow, but if you are replicating elsewhere you will need to add it yourself.