Function _apply_temp_conv

src/wrf/units.py:99–128

Return the variable converted to different units using a temperature conversion algorithm. Args: var (:class:`xarray.DataArray` or :class:`numpy.ndarray`): A variable. var_unit (:obj:`str`): The variable's current units. dest_unit (:obj:`str`): The des

(var, var_unit, dest_unit)

def _apply_temp_conv(var, var_unit, dest_unit):
    """Return the variable converted to different units using a temperature
    conversion algorithm.

    Args:

        var (:class:`xarray.DataArray` or :class:`numpy.ndarray`): A
            variable.

        var_unit (:obj:`str`): The variable's current units.

        dest_unit (:obj:`str`): The desired units.

    Returns:

        :class:`xarray.DataArray` or :class:`numpy.ndarray`: The variable in
        the desired units.

    """
    if dest_unit == var_unit:
        return var

    if var_unit != _BASE_UNITS["temp"]:
        tk = _to_kelvin(var, var_unit)
        if dest_unit == _BASE_UNITS["temp"]:
            return tk
        else:
            return (_TEMP_CONV_METHODS[dest_unit])(tk)
    else:
        return (_TEMP_CONV_METHODS[dest_unit])(var)


# A mapping of unit names to their dictionary key names