ERA5 dataset for the categorization of Stratospheric Final Warming

This file in HDF5 format includes daily values of the following quantities derived from ERA5 data:

• Zonal wind at 60°N – 10 hPa
• Polar temperature averaged over 80-90°N and 50-10 hPa
• Amplitude of geopotential wave 1 at 60°N – 10 hPa
• Zonal-mean meridional heat flux averaged over 45-75°N at 10 hPa

Each data set includes 25933 daily values from January 1n, 1950 to December 31, 2020.

They are computed from ERA5 data extracted at 12UT each day and a resolution 2.5 x 2.5 degrees in latitude and longitude.

The ERA5 data are provided by ECMWF Copernicus Climate Change Service from their data server https://cds.climate.copernicus.eu/cdsapp#!/dataset/reanalysis-era5-pressure-levels?tab=form.