earthkit.meteo.wind.xarray.w_from_omega

earthkit.meteo.wind.xarray.w_from_omega(omega, t, p)

Compute the hydrostatic vertical velocity from pressure velocity, temperature and pressure.

Parameters:

• omega (xarray.DataArray) – Hydrostatic pressure velocity (Pa/s)

• t (xarray.DataArray) – Temperature (K)

• p (xarray.DataArray) – Pressure (Pa)

Returns:

Hydrostatic vertical velocity (m/s)

Return type:

xarray.DataArray

Notes

The computation is based on the following hydrostatic formula:

\[w = - \frac{\omega t R_{d}}{p g}\]

where

• \(R_{d}\) is the specific gas constant for dry air (see earthkit.meteo.constants.Rd).

• \(g\) is the gravitational acceleration (see earthkit.meteo.constants.g)