SurfaceFastem

Workspace.SurfaceFastem(self: pyarts.arts._Workspace, surface_los: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Matrix]] = self.surface_los, surface_rmatrix: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Tensor4]] = self.surface_rmatrix, dsurface_rmatrix_dx: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.ArrayOfTensor4]] = self.dsurface_rmatrix_dx, surface_emission: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Matrix]] = self.surface_emission, dsurface_emission_dx: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.ArrayOfMatrix]] = self.dsurface_emission_dx, stokes_dim: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Index]] = self.stokes_dim, atmosphere_dim: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Index]] = self.atmosphere_dim, lat_grid: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Vector]] = self.lat_grid, lon_grid: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Vector]] = self.lon_grid, f_grid: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Vector]] = self.f_grid, rtp_pos: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Vector]] = self.rtp_pos, rtp_los: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Vector]] = self.rtp_los, surface_props_data: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Tensor3]] = self.surface_props_data, surface_props_names: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.ArrayOfString]] = self.surface_props_names, dsurface_names: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.ArrayOfString]] = self.dsurface_names, jacobian_do: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Index]] = self.jacobian_do, transmittance: Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Vector], fastem_version: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Index]] = 6, verbosity: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Verbosity]] = self.verbosity) → None

FASTEM sea surface microwave emissivity parametrization.

This method allows to use FASTEM in retrievals requiring the Jacobian. Otherwise as surfaceFastem(). See *SurfaceBlackbody for general remarks about methods of SurfaceSomething type.

This is an example on a surface method starting with a capital S, e.g. SurfaceSomething. These methods differ from the methods named as surfaceSomething in two ways:

  1. The surface properties to apply are taken directly from surface_props_data.

  2. The Jacobian with respect to the surface properties can be obtained.

The Jacobian can be obtained for all variables in surface_props_data that the method of concern is using.

For this method, surface_props_data must contain these data:

“Water skin temperature” “Wind speed” “Wind direction” “Salinity”

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]

  • dsurface_rmatrix_dx (ArrayOfTensor4, optional) – The derivative of surface_rmatrix with respect to quantities. See dsurface_rmatrix_dx, defaults to self.dsurface_rmatrix_dx [INOUT]

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

  • dsurface_emission_dx (ArrayOfMatrix, optional) – The derivative of surface_emission with respect to quantities. See dsurface_emission_dx, defaults to self.dsurface_emission_dx [INOUT]

  • 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]

  • lat_grid (Vector, optional) – The latitude grid. See lat_grid, defaults to self.lat_grid [IN]

  • lon_grid (Vector, optional) – The longitude grid. See lon_grid, defaults to self.lon_grid [IN]

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

  • surface_props_data (Tensor3, optional) – Various surface properties. See surface_props_data, defaults to self.surface_props_data [IN]

  • surface_props_names (ArrayOfString, optional) – Name on surface properties found in surface_props_data. See surface_props_names, defaults to self.surface_props_names [IN]

  • dsurface_names (ArrayOfString, optional) – Name of surface retrieval quantities. See dsurface_names, defaults to self.dsurface_names [IN]

  • jacobian_do (Index, optional) – Flag to activate (clear-sky) Jacobian calculations. See jacobian_do, defaults to self.jacobian_do [IN]

  • transmittance (Vector) – Transmittance along path of downwelling radiation. A vector with the same length as f_grid. [IN]

  • fastem_version (Index, optional) – The version of FASTEM to use. Defaults to 6 [IN]

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