geocat.comp.interpolation._vertical_remap_extrap

geocat.comp.interpolation._vertical_remap_extrap(new_levels, lev_dim, data, output, pressure, ps, variable, t_bot, phi_sfc)

A helper function to call the appropriate extrapolation function based on the user’s inputs.

Parameters:

• new_levels (array-like) – The desired pressure levels for extrapolation in Pascals.

• lev_dim (str) – The name of the vertical dimension.

• data (xarray.DataArray) – The data to extrapolate

• output (xarray.DataArray) – An array to hold the output data

• pressure (xarray.DataArray) – The pressure at the lowest level of the model. Must be in the same units as lev and ps

• ps (xarray.DataArray) – An array of surface pressures. Must be in the same units as lev and p_sfc

• variable (str, optional) – String representing what variable is extrapolated below surface level. Temperature extrapolation = “temperature”. Geopotential height extrapolation = “geopotential”. All other variables = “other”. If “other”, the value of data at the lowest model level will be used as the below ground fill value. Required if extrapolate is True.

• t_bot (xarray.DataArray) – Temperature at the lowest (bottom) level of the model.

• phi_sfc – The geopotential at the lowest level of the model.

Returns:

output (xarray.DataArray) – A DataArray containing the data after extrapolation.