brunt_vaisala_period¶
-
metpy.calc.
brunt_vaisala_period
(heights, potential_temperature, axis=0)[source]¶ Calculate the Brunt-Vaisala period.
This function is a helper function for
brunt_vaisala_frequency
that calculates the period of oscilation as in Exercise 3.13 of [Hobbs2006]:\[\tau = \frac{2\pi}{N}\]Returns NaN when \(N^2 > 0\).
Parameters: - heights (array-like) – One-dimensional profile of atmospheric height
- potential_temperature (array-like) – Atmospheric potential temperature
- axis (int, optional) – The axis corresponding to vertical in the potential temperature array, defaults to 0.
Returns: array-like – Brunt-Vaisala period.