complex_refr_indexWaterVisibleNIRHarvey98

Workspace.complex_refr_indexWaterVisibleNIRHarvey98(self: pyarts.arts._Workspace, complex_refr_index: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.GriddedField3]] = self.complex_refr_index, data_f_grid: Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Vector], data_t_grid: Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Vector], density_water: Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Vector], only_valid_range: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Index]] = 1, verbosity: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Verbosity]] = self.verbosity) → None

Refractive index of water and steam for the optical and near infrared.

Refractive index as function of temparature, frequency and density. It is limited only to the real part. The imaginary part is 0.

From: Revised formulation for the Refractive Index of Water and Steam as a Function of Wavelength, Temperature and Density Journal of Physical and Chemical Reference Data 27, 761 (1998), https://doi.org/10.1063/1.556029 27, 761

See also: http://www.iapws.org/release.html or https://www.nist.gov Range of validity:

  • 271.15K < temperature < 773.15K

  • 0 kg m^-3 < density < 1060 kg m^-3

  • 157.785504THz < frequency < 1498.96229THz or 0.2µm < wavelength < 1.9µm

Density can be set as Vector of size 1 or it must have the same size as as data_t_grid.

IMPORTANT: Though the output is complex_refr_index, it only contains the real part. The imaginry part is zero.

Author(s): Manfred Brath

Parameters:

  • complex_refr_index (GriddedField3, optional) – Complex refractive index (n) data. See complex_refr_index, defaults to self.complex_refr_index [INOUT]

  • data_f_grid (Vector) – Frequency grid for refractive index calculation. [IN]

  • data_t_grid (Vector) – Temperature grid for refractive index calculation. [IN]

  • density_water (Vector) – Density of water. [IN]

  • only_valid_range (Index, optional) – Flag. If true refractive index is calculated only within range of validity and it will throw an error if outside range of validity. If false no check is made, so use at your own risk. Defaults to 1 [IN]

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