2.8.4. `vacumm.diag.atmos` – Atmospheric diagnostics¶

2.8.4.1. Overview¶

Functions:

wind_stress(u, v, rhoa=1.25, cd=0.016, format_axes=False, alongxy=None)[source]¶

Compute the sea surface zonal and meridional wind stress from 10m wind components

Output variables are formatted using format_var().

Formula:	$\tau_x = \rho_a C_d (U_{10m}^2+V_{10m}^2)^{\frac{1}{2}}U_{10m} \tau_y = \rho_a C_d (U_{10m}^2+V_{10m}^2)^{\frac{1}{2}}V_{10m}$
Params:	u/v: Wind at 10m above sea surface. rhoa, optional: Air density (in kg.m-3). cd, optional: Drag coefficient. format_axes, optional: Also format axes using `format_axis()`. alongxy, optional: Format variables considering components are along X/Y direction and not along zonal/meridional direction.
Return:	`us, vs`

ws2w(us, vs, rhoa=1.25, cd=0.016, format_axes=False, alongxy=None)[source]¶

Convert from wind stress to 10m wind components

This function is the reverse one of wind_stress(). Output variables are formatted using format_var().

Formula:	$U_{10m} = (\rho_a C_d)^{-\frac{1}{2}} (\tau_x^2+\tau_y^2)^{-\frac{1}{4}} \tau_x V_{10m} = (\rho_a C_d)^{-\frac{1}{2}} (\tau_x^2+\tau_y^2)^{-\frac{1}{4}} \tau_y$
Params:	us/vs: Wind stress components. rhoa, optional: Air density (in kg.m-3). cd, optional: Drag coefficient. format_axes, optional: Also format axes using `format_axis()`. alongxy, optional: Format variables considering components are along X/Y direction and not along zonal/meridional direction.
Return:	`u, v`