vertical_velocity

metpy.calc.vertical_velocity(omega, pressure, temperature, mixing=0)[source]

Calculate w from omega assuming hydrostatic conditions.

This function converts vertical velocity with respect to pressure \(\left(\omega = \frac{Dp}{Dt}\right)\) to that with respect to height \(\left(w = \frac{Dz}{Dt}\right)\) assuming hydrostatic conditions on the synoptic scale. By Equation 7.33 in [Hobbs2006],

so that

Density (\(\rho\)) is calculated using the density() function, from the given pressure and temperature. If mixing is given, the virtual temperature correction is used, otherwise, dry air is assumed.

Parameters:
  • omega (pint.Quantity) – Vertical velocity in terms of pressure
  • pressure (pint.Quantity) – Total atmospheric pressure
  • temperature (pint.Quantity) – Air temperature
  • mixing (pint.Quantity, optional) – Mixing ratio of air
Returns:

pint.Quantity – Vertical velocity in terms of height (in meters / second)

See also

density(), vertical_velocity_pressure()