polaris.ocean.vertical.ztilde.pressure_from_z_tilde

polaris.ocean.vertical.ztilde.pressure_from_z_tilde(z_tilde: DataArray, rho0: float) → DataArray[source]

Convert pseudo-height to sea pressure.

p = -z_tilde * (rho0 * g)

Parameters:

  • z_tilde (xarray.DataArray) – Pseudo-height in meters (m), positive upward.

  • rho0 (float) – Reference density in kg m^-3.

Returns:

xarray.DataArray – Sea pressure with the same shape and coords as z_tilde (Pa).