ARTS built-in documentation server

Workspace Method RT4CalcWithRT4Surface


As RT4Calc except for using RT4's proprietary surface type handling.

This WSM is only indented for testing purposes.

The following surface type/property methods are available and
require the the following input:
- 'L'ambertian: surface_scalar_reflectivity, surface_skin_t
- 'F'resnel: surface_complex_refr_index, surface_skin_t
- 'S'pecular: surface_reflectivity, surface_skin_t
'L' and 'F' use proprietary RT4 methods, 'S' uses RT4's Fresnel
methods modified to behave similar to ARTS'

Authors: Jana Mendrok


RT4CalcWithRT4Surface( cloudbox_field, za_grid, aa_grid, atmfields_checked, atmgeom_checked, scat_data_checked, cloudbox_checked, cloudbox_on, cloudbox_limits, propmat_clearsky_agenda, atmosphere_dim, pnd_field, t_field, z_field, vmr_field, p_grid, scat_data, f_grid, stokes_dim, z_surface, surface_skin_t, surface_scalar_reflectivity, surface_reflectivity, surface_complex_refr_index, nstreams, pfct_method, ground_type, quad_type, add_straight_angles, pfct_aa_grid_size, auto_inc_nstreams, robust, za_interp_order, cos_za_interp, max_delta_tau )


OUTcloudbox_field(Tensor7)The spectral radiance field inside the cloudbx.
OUTza_grid(Vector)Zenith angle grid.
OUTaa_grid(Vector)Azimuthal angle grid.
INatmfields_checked(Index)OK-flag for atmospheric grids and (physical) fields.
INatmgeom_checked(Index)OK-flag for the geometry of the model atmosphere.
INscat_data_checked(Index)OK-flag for scat_data.
INcloudbox_checked(Index)OK-flag for variables associated with the cloudbox.
INcloudbox_on(Index)Flag to activate the cloud box.
INcloudbox_limits(ArrayOfIndex)The limits of the cloud box.
INpropmat_clearsky_agenda(Agenda)Agenda calculating the absorption coefficient matrices.
INatmosphere_dim(Index)The atmospheric dimensionality (1-3).
INpnd_field(Tensor4)Particle number density field.
INt_field(Tensor3)The field of atmospheric temperatures.
INz_field(Tensor3)The field of geometrical altitudes.
INvmr_field(Tensor4)VMR field.
INp_grid(Vector)The pressure grid.
INscat_data(ArrayOfArrayOfSingleScatteringData)Array of single scattering data.
INf_grid(Vector)The frequency grid for monochromatic pencil beam calculations.
INstokes_dim(Index)The dimensionality of the Stokes vector (1-4).
INz_surface(Matrix)The surface altitude.
INsurface_skin_t(Numeric)Surface skin temperature.
INsurface_scalar_reflectivity(Vector)Surface reflectivity, assuming it can be described as a scalar value.
INsurface_reflectivity(Tensor3)Surface reflectivity, for a given position and angle.
INsurface_complex_refr_index(GriddedField3)Complex refractive index of the surface, at a single point.
GINnstreams(Index, Default: 16)Number of polar angle directions (streams) in RT4 solution (must be an even number).
GINpfct_method(String, Default: "median")Flag which method to apply to derive phase function (for available options see above).
GINground_type(String, Default: "A")Flag which surface type/surface property method to use (for available options see above).
GINquad_type(String, Default: "D")Flag which quadrature to apply in RT4 solution (for available options see above).
GINadd_straight_angles(Index, Default: 1)Flag whether to include nadir and zenith as explicit directions (only effective for quad_type G and D).
GINpfct_aa_grid_size(Index, Default: 19)Number of azimuthal angle grid points to consider in Fourier series decomposition of scattering matrix (only applied for randomly oriented scattering elements)
GINauto_inc_nstreams(Index, Default: 0)Flag whether to internally increase nstreams (individually per frequency) if norm of (bulk) scattering matrix is not preserved properly. If 0, no adaptation is done. Else *auto_inc_nstreams* gives the maximum number of streams to increase to.
GINrobust(Index, Default: 0)For *auto_inc_nstreams*>0, flag whether to not fail even if scattering matrix norm is not preserved when maximum stream number is reached. Internal RT4 calculations is then performed with nstreams=*auto_inc_nstreams*.
GINza_interp_order(Index, Default: 1)For *auto_inc_nstreams*>0, polar angle interpolation order for interpolation from internal increased stream to originally requested nstreams-ifield.
GINcos_za_interp(Index, Default: 0)For *auto_inc_nstreams*>0, flag whether to do polar angle interpolation in cosine (='mu') space.
GINmax_delta_tau(Numeric, Default: 1e-6)Maximum optical depth of infinitesimal layer (where single scattering approximation is assumed to apply).