surfaceFlatRefractiveIndex

Workspace.surfaceFlatRefractiveIndex(self: pyarts.arts._Workspace, surface_los: pyarts.arts.WorkspaceVariable | pyarts.arts.Matrix | None = self.surface_los, surface_rmatrix: pyarts.arts.WorkspaceVariable | pyarts.arts.Tensor4 | None = self.surface_rmatrix, surface_emission: pyarts.arts.WorkspaceVariable | pyarts.arts.Matrix | None = self.surface_emission, f_grid: pyarts.arts.WorkspaceVariable | pyarts.arts.Vector | None = self.f_grid, stokes_dim: pyarts.arts.WorkspaceVariable | pyarts.arts.Index | None = self.stokes_dim, atmosphere_dim: pyarts.arts.WorkspaceVariable | pyarts.arts.Index | None = self.atmosphere_dim, rtp_pos: pyarts.arts.WorkspaceVariable | pyarts.arts.Vector | None = self.rtp_pos, rtp_los: pyarts.arts.WorkspaceVariable | pyarts.arts.Vector | None = self.rtp_los, specular_los: pyarts.arts.WorkspaceVariable | pyarts.arts.Vector | None = self.specular_los, surface_skin_t: pyarts.arts.WorkspaceVariable | pyarts.arts.Numeric | None = self.surface_skin_t, surface_complex_refr_index: pyarts.arts.WorkspaceVariable | pyarts.arts.GriddedField3 | None = self.surface_complex_refr_index, verbosity: pyarts.arts.WorkspaceVariable | pyarts.arts.Verbosity | None = self.verbosity) → None

Creates variables to mimic specular reflection by a (flat) surface where the complex refractive index is specified.

The dielectric properties of the surface are described by surface_complex_refr_index. The Fresnel equations are used to calculate amplitude reflection coefficients. The method can thus result in that the reflection properties differ between frequencies and polarisations.

Local thermodynamic equilibrium is assumed, which corresponds to that the reflection and emission coefficients add up to 1.

Author(s): Patrick Eriksson

Parameters:

  • surface_los (Matrix, optional) – Downwelling radiation directions to consider in surface reflection. See surface_los, defaults to self.surface_los [OUT]

  • surface_rmatrix (Tensor4, optional) – The reflection coefficients for the directions given by. See surface_rmatrix, defaults to self.surface_rmatrix [OUT]

  • surface_emission (Matrix, optional) – The emission from the surface. See surface_emission, defaults to self.surface_emission [OUT]

  • f_grid (Vector, optional) – The frequency grid for monochromatic pencil beam calculations. See f_grid, defaults to self.f_grid [IN]

  • stokes_dim (Index, optional) – The dimensionality of the Stokes vector (1-4). See stokes_dim, defaults to self.stokes_dim [IN]

  • atmosphere_dim (Index, optional) – The atmospheric dimensionality (1-3). See atmosphere_dim, defaults to self.atmosphere_dim [IN]

  • rtp_pos (Vector, optional) – Position of a radiative transfer point. See rtp_pos, defaults to self.rtp_pos [IN]

  • rtp_los (Vector, optional) – Line-of-sight at a radiative transfer point. See rtp_los, defaults to self.rtp_los [IN]

  • specular_los (Vector, optional) – The specular direction (for reflection by a flat surface). See specular_los, defaults to self.specular_los [IN]

  • surface_skin_t (Numeric, optional) – Surface skin temperature. See surface_skin_t, defaults to self.surface_skin_t [IN]

  • surface_complex_refr_index (GriddedField3, optional) – Complex refractive index of the surface, at a single point. See surface_complex_refr_index, defaults to self.surface_complex_refr_index [IN]

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