ClimoDataArrayAccessor.convergence¶

ClimoDataArrayAccessor.convergence(*args, **kwargs)[source]¶

Return the spherical meridional convergence. To calculate the convergence at the poles, the numerator is assumed to vanish and l’Hopital’s rule is invoked.

Parameters

cos_power (int, optional) – Exponent to which the cosines in the numerator and denominator is raised. Default is 1, but the contribution of the angular momentum flux convergence to the zonal wind budget requires 2 (this can be seen by writing the budget equation for the angular momentum \(L\) and solving for \(\partial_t u\)).
centered (bool, optional) – If False, use more accurate (but less convenient) half-level differentiation rather than centered differentiation.
**kwargs – Passed to deriv_uneven or deriv_half.