Methodology
Anchor
methodology
methodology

Excerpt

The process to generate this dataset involves:

Fetching ERA5 Pressure Levels data in GRIB format.
Applying homogenization conventions, as applicable:
- Ensure latitude, longitude ranges are between [-90, +90], [-180, +180].
Rename vertical dimension to pressureLevels, to homogenize all parameters.
Leave only essential coordinates latitude, longitude, time and pressureLevels.
Writing to an ARCO Zarr archive (which is similar in structure to netCDF).
The CDS requests the data from the Zarr archive using xarray and writes the data to netCDF or CSV (as requested).

Data organization and access

...


geopotential
specific_humidity
temperature
u_component_of_wind
v_component_of_wind
vertical_velocity

Please refer to the ERA5 documentation.

...

	Name	Units	Variable name
1	Geopotential	m² s^-2	geopotential
2	Specific humidity	kg kg^-1	specific_humidity
3	Temperature	K	temperature
4	U component of wind	m s^-1	u_component_of_wind
5	V component of wind	m s^-1	v_component_of_wind
6	Vertical velocity	Pa s^-1	vertical_velocity