#include "surface.h"
#include <cmath>
#include "auto_md.h"
#include "check_input.h"
#include "complex.h"
#include "geodetic.h"
#include "math_funcs.h"
#include "matpackI.h"
#include "physics_funcs.h"
#include "workspace_ng.h"

Functions
Numeric	calc_incang (ConstVectorView rte_los, ConstVectorView specular_los)
	Calculates the incidence angle for a flat surface, based on rte_los and specular_los. More...

Index	index_of_zsurface (const Numeric &z_surface, ConstVectorView z_profile)
	Lccates the surface with respect to pressure levels. More...

void	surface_calc (Matrix &iy, ConstTensor3View I, ConstMatrixView surface_los, ConstTensor4View surface_rmatrix, ConstMatrixView surface_emission)
	Weights together downwelling radiation and surface emission. More...

void	surface_specular_R_and_b (MatrixView surface_rmatrix, VectorView surface_emission, const Complex &Rv, const Complex &Rh, const Numeric &f, const Index &stokes_dim, const Numeric &surface_skin_t)
	Sets up the surface reflection matrix and emission vector for the case of specular reflection. More...

void	surface_props_check (const Index &atmosphere_dim, const Vector &lat_grid, const Vector &lon_grid, const Tensor3 &surface_props_data, const ArrayOfString &surface_props_names)
	Peforms basic checks of surface_props_data and surface_props_names More...

void	surface_props_interp (Vector &v, const String &vname, const Index &atmosphere_dim, const ArrayOfGridPos &gp_lat, const ArrayOfGridPos &gp_lon, const Matrix &itw, const Tensor3 &surface_props_data, const ArrayOfString &surface_props_names)
	Peforms an interpolation of surface_props_data More...

void	dsurface_check (const ArrayOfString &surface_props_names, const ArrayOfString &dsurface_names, const ArrayOfTensor4 dsurface_rmatrix_dx, const ArrayOfMatrix &dsurface_emission_dx)
	Peforms basic checks of the dsurface variables. More...

Detailed Description

Author: Patrick Eriksson Patri.nosp@m.ck.E.nosp@m.rikss.nosp@m.on@c.nosp@m.halme.nosp@m.rs.s.nosp@m.e

Date: 2012-02-06

This file contains internal functions associated with the surface.

Definition in file surface.cc.

Function Documentation

◆ calc_incang()

Numeric calc_incang	(	ConstVectorView	rte_los,
		ConstVectorView	specular_los
	)

Calculates the incidence angle for a flat surface, based on rte_los and specular_los.

Returns: Incidence angle.

Parameters

[in]	rte_los	As the WSV with the same name.
[in]	specular_los	As the WSV with the same name.

Author: Patrick Eriksson

Date: 2012-11-15

Definition at line 50 of file surface.cc.

References abs, ARTS::Var::rte_los(), and ARTS::Var::specular_los().

Referenced by surfaceFlatRefractiveIndex().

◆ dsurface_check()

void dsurface_check	(	const ArrayOfString &	surface_props_names,
		const ArrayOfString &	dsurface_names,
		const ArrayOfTensor4	dsurface_rmatrix_dx,
		const ArrayOfMatrix &	dsurface_emission_dx
	)

Peforms basic checks of the dsurface variables.

No calculaions, just checks

Parameters

[in]	surface_props_data	As the WVS with the same name.
[in]	surface_props_names	As the WVS with the same name.
[in]	dsurface_names	As the WVS with the same name.
[in]	dsurface_ratrix_dx	As the WVS with the same name.
[in]	dsurface_emission_dx	As the WVS with the same name.

Author: Patrick Eriksson

Date: 2018-09-01

Definition at line 210 of file surface.cc.

References ARTS::Var::dsurface_emission_dx(), ARTS::Var::dsurface_names(), ARTS::Var::dsurface_rmatrix_dx(), and ARTS::Var::surface_props_names().

Referenced by SurfaceDummy(), SurfaceFastem(), and SurfaceTessem().

◆ index_of_zsurface()

Index index_of_zsurface	(	const Numeric &	z_surface,
		ConstVectorView	z_profile
	)

Lccates the surface with respect to pressure levels.

The function returns the index of the pressure level at or just below the surface.

Returns: The found index.

Parameters

[in]	z_surface	A surface value (probably a value from WSV z_surface)
[in]	z_profile	A profile of geometrical altitudes (probably a page of z_field)

Author: Patrick Eriksson

Date: 2019-10-26

Definition at line 54 of file surface.cc.

References ARTS::Var::z_surface().

Referenced by spectral_radiance_fieldClearskyPlaneParallel().

◆ surface_calc()

void surface_calc	(	Matrix &	iy,
		ConstTensor3View	I,
		ConstMatrixView	surface_los,
		ConstTensor4View	surface_rmatrix,
		ConstMatrixView	surface_emission
	)

Weights together downwelling radiation and surface emission.

iy* must have correct size when function is called.

Parameters

[out]	iy	Radiation matrix, amtching the WSV with the same name.
[in]	I	Downwelling radiation, with dimensions (surface_los, f_grid, stokes_dim)
[in]	surface_los	As the WSV with the same name.
[in]	surface_rmatrix	As the WSV with the same name.
[in]	surface_emission	As the WSV with the same name.

Author: Patrick Eriksson

Date: 2005-04-07

Definition at line 63 of file surface.cc.

References ARTS::Var::iy(), joker, mult(), ConstTensor3View::ncols(), ConstTensor3View::nrows(), ARTS::Var::stokes_dim(), ARTS::Var::surface_emission(), ARTS::Var::surface_los(), and ARTS::Var::surface_rmatrix().

Referenced by iySurfaceFastem(), iySurfaceRtpropAgenda(), and iySurfaceRtpropCalc().

◆ surface_props_check()

void surface_props_check	(	const Index &	atmosphere_dim,
		const Vector &	lat_grid,
		const Vector &	lon_grid,
		const Tensor3 &	surface_props_data,
		const ArrayOfString &	surface_props_names
	)

Peforms basic checks of surface_props_data and surface_props_names

No calculaions, just checks

Parameters

[in]	atmosphere_dim	As the WVS with the same name.
[in]	lat_grid	As the WVS with the same name.
[in]	lon_grid	As the WVS with the same name.
[in]	surface_props_data	As the WVS with the same name.
[in]	surface_props_names	As the WVS with the same name.

Author: Patrick Eriksson

Date: 2018-09-01

Definition at line 139 of file surface.cc.

References ARTS::Var::atmosphere_dim(), ARTS::Var::lat_grid(), ARTS::Var::lon_grid(), Absorption::nelem(), ARTS::Var::surface_props_data(), and ARTS::Var::surface_props_names().

Referenced by SurfaceDummy(), SurfaceFastem(), and SurfaceTessem().

◆ surface_props_interp()

void surface_props_interp	(	Vector &	v,
		const String &	vname,
		const Index &	atmosphere_dim,
		const ArrayOfGridPos &	gp_lat,
		const ArrayOfGridPos &	gp_lon,
		const Matrix &	itw,
		const Tensor3 &	surface_props_data,
		const ArrayOfString &	surface_props_names
	)

Peforms an interpolation of surface_props_data

The function assumes that the intrpolatin gives a single value. The vector v* must have lenght 1.

Parameters

[in]	v	Interpolated value
[in]	vname	Name of surface variable to interpolate
[in]	atmosphere_dim	As the WVS with the same name.
[in]	gp_lat	Pre-calculatd latitude grid positions
[in]	gp_lon	Pre-calculatd longitude grid positions
[in]	itw	Pre-calculatd interpolation weight
[in]	surface_props_data	As the WVS with the same name.
[in]	surface_props_names	As the WVS with the same name.

Author: Patrick Eriksson

Date: 2018-09-01

Definition at line 180 of file surface.cc.

References ARTS::Var::atmosphere_dim(), interp_atmsurface_by_itw(), joker, ConstVectorView::nelem(), ARTS::Var::surface_props_data(), and ARTS::Var::surface_props_names().

Referenced by SurfaceFastem(), and SurfaceTessem().

◆ surface_specular_R_and_b()

void surface_specular_R_and_b	(	MatrixView	surface_rmatrix,
		VectorView	surface_emission,
		const Complex &	Rv,
		const Complex &	Rh,
		const Numeric &	f,
		const Index &	stokes_dim,
		const Numeric &	surface_skin_t
	)

Sets up the surface reflection matrix and emission vector for the case of specular reflection.

The function handles only one frequency at the time.

See further the surface chapter in the user guide.

Parameters

[out]	surface_rmatrix	As the WSV with the same name, but slice for one direction and one frequency.
[out]	surface_emission	As the WSV with the same name, but slice for one direction and one frequency.
[in]	Rv	Complex amplitude relection coefficient vertical polarisation.
[in]	Rh	Complex amplitude relection coefficient horisontal polarisation.
[in]	f	Frequency (a scalar).
[in]	stokes_dim	As the WSV with the same name.
[in]	surface_skin_t	As the WSV with the same name.

Author: Patrick Eriksson

Date: 2004-09-24

Definition at line 88 of file surface.cc.

References abs, conj(), planck(), pow(), ARTS::Var::stokes_dim(), ARTS::Var::surface_emission(), ARTS::Var::surface_rmatrix(), and ARTS::Var::surface_skin_t().

Referenced by surfaceFlatRefractiveIndex().

Functions

Detailed Description

Function Documentation

◆ calc_incang()

◆ dsurface_check()

◆ index_of_zsurface()

◆ surface_calc()

◆ surface_props_check()

◆ surface_props_interp()

◆ surface_specular_R_and_b()