abs_linesPopulation

Workspace.abs_linesPopulation(self: pyarts.arts._Workspace, abs_lines: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.ArrayOfAbsorptionLines]] = self.abs_lines, option: Union[pyarts.arts.WorkspaceVariable, pyarts.arts.String], verbosity: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Verbosity]] = self.verbosity) → None

Sets population type for all lines.

Available option:

• "LTE": Assume band is in LTE

• "NLTE": Assume band is in NLTE and the upper-to-lower ratio is known

• "VibTemps": Assume band is in NLTE described by vibrational temperatures and LTE at other levels

• "ByHITRANRosenkranzRelmat": Assume band needs to compute relaxation matrix to derive HITRAN Y-coefficients

• "ByHITRANFullRelmat": Assume band needs to compute and directly use the relaxation matrix according to HITRAN

• "ByMakarovFullRelmat": Assume band needs to compute and directly use the relaxation matrix according to Makarov et al 2020

• "ByRovibLinearDipoleLineMixing": Assume band needs to compute and directly use the relaxation matrix according to Hartmann, Boulet, Robert, 2008, 1st edition

You must have set nlte_field and/or its ilk to use the NLTE methods.

You must have abs_hitran_relmat_data for the ByHITRANXX methods.

You must have ecs_data for the other two relaxation matrix options

Author(s): Richard Larsson

Parameters:

• abs_lines (ArrayOfAbsorptionLines, optional) – A list of spectral line data. See abs_lines, defaults to self.abs_lines [INOUT]

• option (String) – Method of line population. [IN]

• verbosity (Verbosity) – ARTS verbosity. See verbosity, defaults to self.verbosity [IN]