earthkit.meteo.vertical.hybrid_level_parameters

earthkit.meteo.vertical.hybrid_level_parameters(n_levels, model='ifs')

Get the A and B coefficients of hybrid levels for a given model configuration.

Parameters:

  • n_levels (int) – Number of (full) hybrid levels. Currently only n_levels 91 and 137 are supported.

  • model (str, optional) – Model name. Default is "ifs". Currently only "ifs" is supported.

Returns:

A tuple (A, B) of 1D arrays of length n_levels + 1 containing the A and B coefficients on the hybrid half-levels.

Return type:

tuple[array-like, array-like]

Notes

The A and B coefficients are not unique; in theory there can be multiple definitions for a given number of levels and model. hybrid_level_parameters() returns the most typical set of coefficients used.

Implementations

hybrid_level_parameters() calls the following implementation: