Isotropic atmos scattering model. More...

#include <AtmosModel.h>

Inheritance diagram for Isis::AtmosModel:

Collaboration diagram for Isis::AtmosModel:

Public Member Functions
	AtmosModel (Pvl &pvl, PhotoModel &pmodel)
	Create an AtmosModel object.

virtual	~AtmosModel ()
	Empty destructor.

void	CalcAtmEffect (double pha, double inc, double ema, double pstd, double trans, double trans0, double sbar, double *transs)
	Calculate the atmospheric scattering effect using photometric angle information.

virtual void	SetStandardConditions (bool standard)
	Used to calculate atmosphere at standard conditions.

void	GenerateAhTable ()
	This method computes the values of the atmospheric Ah table and sets the properties of the atmospheric Ah spline.

void	GenerateHahgTables ()
	This method computes the values of the atmospheric Hahg and Hahg0 tables and sets the properties of the atmospheric Hahg and Hahg0 splines.

void	GenerateHahgTablesShadow ()
	This method is a modified version of the GenerateHahgTables method and is used solely for shadow modeling.

void	SetAtmosAtmSwitch (const int atmswitch)
	Set the switch that controls the function that will be integrated.

void	SetAtmosBha (const double bha)
	Set the Anisotropic Atmospheric function parameter.

void	SetAtmosHga (const double hga)
	Set the Hapke atmospheric function parameter.

void	SetAtmosInc (const double inc)
	Set the incidence angle.

void	SetAtmosNulneg (const string nulneg)
	Set the Atmospheric function parameter.

void	SetAtmosPhi (const double phi)
	Set the azimuth angle.

void	SetAtmosTau (const double tau)
	Set the Atmospheric function parameter.

void	SetAtmosTauref (const double tauref)
	Set the Atmospheric function parameter.

void	SetAtmosWha (const double wha)
	Set the Atmospheric function parameter.

void	SetAtmosHnorm (const double hnorm)
	Set the Atmospheric function parameter.

void	SetAtmosIord (const string offset)
	Set additive offset in fit.

void	SetAtmosEstTau (const string esttau)
	Estimate the optical depth tau using shadows.

string	AlgorithmName () const
	Return atmospheric algorithm name.

bool	AtmosAdditiveOffset () const
	Allow additive offset in fit?

double	AtmosHnorm () const
	Return atmospheric Hnorm value.

double	AtmosBha () const
	Return atmospheric Bha value.

double	AtmosTau () const
	Return atmospheric Tau value.

double	AtmosWha () const
	Return atmospheric Wha value.

double	AtmosHga () const
	Return atmospheric Hga value.

double	AtmosTauref () const
	Return atmospheric Tauref value.

bool	AtmosNulneg () const
	Return atmospheric Nulneg value.

double	AtmosAb () const
	Return atmospheric Ab value.

double	AtmosHahgsb () const
	Return atmospheric Hahgsb value.

int	AtmosNinc () const
	Return atmospheric Ninc value.

double	AtmosMunot () const
	Return atmospheric Munot value.

vector< double >	AtmosIncTable ()
	Return atmospheric IncTable value.

vector< double >	AtmosAhTable ()
	Return atmospheric AhTable value.

vector< double >	AtmosHahgtTable ()
	Return atmospheric HahgtTable value.

vector< double >	AtmosHahgt0Table ()
	Return atmospheric Hahgt0Table value.

NumericalApproximation	AtmosAhSpline ()
	If GenerateAhTable() has been called this returns a clamped cubic spline of the data set (p_atmosIncTable, p_atmosAhTable) with first derivatives of the endpoints equal to 1.0e30.

NumericalApproximation	AtmosHahgtSpline ()
	If GenerateHahgTables() has been called this returns a clamped cubic spline of the data set (p_atmosIncTable, p_atmosHahgtTable) with first derivatives of the endpoints equal to 1.0e30.

NumericalApproximation	AtmosHahgt0Spline ()
	If GenerateHahgTables() has been called this returns a clamped cubic spline of the data set (p_atmosIncTable, p_atmosHahgt0Table) with first derivatives of the endpoints equal to 1.0e30.

Static Public Member Functions
static double	G11Prime (double tau)
	Perform Chandra and Van de Hulst's series approximation for the g'11 function needed in second order scattering theory.

static double	Ei (double x)
	This routine computes the exponential integral, Ei(x).

static double	En (unsigned int n, double x)
	This routine evaluates the generalized exponential integral, E_n(x).

Protected Member Functions
virtual void	AtmosModelAlgorithm (double phase, double incidence, double emission)=0

void	SetAlgorithmName (string name)

void	SetAtmosNulneg (bool nulneg)

void	SetAtmosIord (bool offset)

void	SetAtmosEstTau (bool esttau)

void	SetOldTau (double tau)

void	SetOldWha (double wha)

PhotoModel *	GetPhotoModel () const

bool	StandardConditions () const

bool	TauOrWhaChanged () const
	Checks whether tau or wha have changed.

double	Eulgam () const

Protected Attributes
int	p_atmosAtmSwitch

int	p_atmosNinc

double	p_atmosBha

double	p_atmosBhasave

double	p_atmosHgasave

double	p_atmosTauref

double	p_atmosTausave

double	p_atmosWhasave

double	p_pstd
	Pure atmospheric-scattering term.

double	p_trans
	Transmission of surface reflected light through the atmosphere overall.

double	p_trans0
	Transmission of surface reflected light through the atmosphere with no scatterings in the atmosphere.

double	p_transs
	Transmission of light that must be subtracted from the flat surface model to get the shadow model.

double	p_sbar
	Illumination of the ground by the sky.

double	p_atmosHga

double	p_atmosTau

double	p_atmosWha

double	p_atmosAb

double	p_atmosHnorm
	Atmospheric shell thickness normalized to planet radius.

bool	p_atmosAddOffset
	Allow additive offset in fit.

bool	p_atmosEstTau
	Estimate optical depth tau using shadows.

vector< double >	p_atmosIncTable

vector< double >	p_atmosAhTable

double	p_atmosHahgsb

vector< double >	p_atmosHahgtTable

vector< double >	p_atmosHahgt0Table

double	p_atmosInc

double	p_atmosPhi

double	p_atmosMunot

double	p_atmosSini

double	p_atmosCosphi

double	p_atmosEulgam

NumericalApproximation	p_atmosAhSpline
	Spline object for the atmospheric Ah Table. Properties are set in GenerateAhTable().

NumericalApproximation	p_atmosHahgtSpline
	Spline object for the atmospheric Hahg Table. Properties are set in GenerateHahgTables().

NumericalApproximation	p_atmosHahgt0Spline
	Spline object for the atmospheric Hahg0 Table. Properties are set in GenerateHahgTables().

Private Attributes
bool	p_standardConditions

string	p_atmosAlgorithmName

PhotoModel *	p_atmosPM

bool	p_atmosNulneg

double	p_atmosTauold

double	p_atmosWhaold

Friends
class	NumericalAtmosApprox

Detailed Description

Isotropic atmos scattering model.

Author: 1998-12-21 Randy Kirk

History:

2007-02-20 Janet Barrett - Imported from Isis2.

2007-07-31 Steven Lambright - Fixed unit test

2007-08-15 Steven Lambright - Refactored

2008-03-07 Janet Barrett - Added code to set standard conditions. Also added bharef, hgaref, tauref, and wharef variables and supporting methods.

2008-06-18 Christopher Austin - Fixed much documentation

2008-07-09 Steven Lambright - Fixed unit test

2008-11-05 Jeannie Walldren - Moved numerical methods and functions to NumericalMethods and NumericalAtmosApprox classes. Moved G11Prime(), Ei(), and En() from NumericalMethods into this class. Added splines to protected variables and removed second derivative vector protected variables (p_atmosAhTable2, p_atmosHahgtTable2, p_atmosHahgt0Table2) that are no longer needed. Replaced arrays with vectors in protected variables. Added documentation from Isis2 files. Removed "Isis::" and "std::" in AtmosModel.cpp since that file uses std and Isis namespaces.

2008-11-07 Jeannie Walldren - Fixed documentation

2011-08-17 Sharmila Prasad -Added API's for HNORM, Additive Offset

2011-09-14 Janet Barrett - Got rid of bharef, hgaref, and wharef variables and supporting methods.

2011-12-19 Janet Barrett - Added the p_atmosEstTau variable that determines if the optical depth "tau" will be estimated using shadow modeling. Added the GenerateHahgTablesShadow method for doing the shadow modeling. Added a getter method for accessing the Munot (normally the cosine of the incidence angle) value in the atmospheric classes. Added a setter method for setting the p_atmosEstTau variable which is used by the atmospheric classes.

Definition at line 76 of file AtmosModel.h.

Constructor & Destructor Documentation

Isis::AtmosModel::AtmosModel	(	Pvl &	pvl,
		PhotoModel &	pmodel
	)

Create an AtmosModel object.

Because this is a pure virtual class you can not create an AtmosModel class directly. Instead, see the Isis::AtmosModelFactory class.

Parameters

pvl	Isis::Pvl object containing a valid AtmosModel specification
pmodel	PhotoModel object containing valud AtmosModel data

See Also: atmosphericModels.doc

History:: 2008-11-05 Jeannie Walldren - Replaced arrays with vectors

Definition at line 35 of file AtmosModel.cpp.

References Isis::PvlObject::findObject(), and Isis::PvlContainer::hasKeyword().

virtual Isis::AtmosModel::~AtmosModel ( )

inlinevirtual

Empty destructor.

Definition at line 80 of file AtmosModel.h.

Member Function Documentation

string Isis::AtmosModel::AlgorithmName ( ) const

inline

Return atmospheric algorithm name.

Definition at line 116 of file AtmosModel.h.

double Isis::AtmosModel::AtmosAb ( ) const

inline

Return atmospheric Ab value.

Definition at line 155 of file AtmosModel.h.

Referenced by Isis::AlbedoAtm::NormModelAlgorithm().

bool Isis::AtmosModel::AtmosAdditiveOffset ( ) const

inline

Allow additive offset in fit?

Definition at line 121 of file AtmosModel.h.

NumericalApproximation Isis::AtmosModel::AtmosAhSpline ( )

inline

If GenerateAhTable() has been called this returns a clamped cubic spline of the data set (p_atmosIncTable, p_atmosAhTable) with first derivatives of the endpoints equal to 1.0e30.

Otherwise, it is a natural cubic spline with an empty data set.

Returns: NumericalApproximation Cubic spline

History:: 2008-11-05 Jeannie Walldren - Original version

Definition at line 199 of file AtmosModel.h.

Referenced by Isis::AlbedoAtm::AlbedoAtm(), and Isis::AlbedoAtm::NormModelAlgorithm().

vector<double> Isis::AtmosModel::AtmosAhTable ( )

inline

Return atmospheric AhTable value.

Definition at line 176 of file AtmosModel.h.

double Isis::AtmosModel::AtmosBha ( ) const

inline

Return atmospheric Bha value.

Definition at line 131 of file AtmosModel.h.

double Isis::AtmosModel::AtmosHahgsb ( ) const

inline

Return atmospheric Hahgsb value.

Definition at line 159 of file AtmosModel.h.

NumericalApproximation Isis::AtmosModel::AtmosHahgt0Spline ( )

inline

If GenerateHahgTables() has been called this returns a clamped cubic spline of the data set (p_atmosIncTable, p_atmosHahgt0Table) with first derivatives of the endpoints equal to 1.0e30.

Otherwise, it is a natural cubic spline with an empty data set.

Returns: NumericalApproximation Cubic spline

History:: 2008-11-05 Jeannie Walldren - Original version

Definition at line 227 of file AtmosModel.h.

vector<double> Isis::AtmosModel::AtmosHahgt0Table ( )

inline

Return atmospheric Hahgt0Table value.

Definition at line 184 of file AtmosModel.h.

NumericalApproximation Isis::AtmosModel::AtmosHahgtSpline ( )

inline

If GenerateHahgTables() has been called this returns a clamped cubic spline of the data set (p_atmosIncTable, p_atmosHahgtTable) with first derivatives of the endpoints equal to 1.0e30.

Otherwise, it is a natural cubic spline with an empty data set.

Returns: NumericalApproximation Cubic spline

History:: 2008-11-05 Jeannie Walldren - Original version

Definition at line 213 of file AtmosModel.h.

vector<double> Isis::AtmosModel::AtmosHahgtTable ( )

inline

Return atmospheric HahgtTable value.

Definition at line 180 of file AtmosModel.h.

double Isis::AtmosModel::AtmosHga ( ) const

inline

Return atmospheric Hga value.

Definition at line 143 of file AtmosModel.h.

Referenced by Isis::NumericalAtmosApprox::InrFunc2Bint().

double Isis::AtmosModel::AtmosHnorm ( ) const

inline

Return atmospheric Hnorm value.

Definition at line 126 of file AtmosModel.h.

vector<double> Isis::AtmosModel::AtmosIncTable ( )

inline

Return atmospheric IncTable value.

Definition at line 172 of file AtmosModel.h.

double Isis::AtmosModel::AtmosMunot ( ) const

inline

Return atmospheric Munot value.

Definition at line 167 of file AtmosModel.h.

int Isis::AtmosModel::AtmosNinc ( ) const

inline

Return atmospheric Ninc value.

Definition at line 163 of file AtmosModel.h.

bool Isis::AtmosModel::AtmosNulneg ( ) const

inline

Return atmospheric Nulneg value.

Definition at line 151 of file AtmosModel.h.

double Isis::AtmosModel::AtmosTau ( ) const

inline

Return atmospheric Tau value.

Definition at line 135 of file AtmosModel.h.

Referenced by Isis::NumericalAtmosApprox::InrFunc2Bint().

double Isis::AtmosModel::AtmosTauref ( ) const

inline

Return atmospheric Tauref value.

Definition at line 147 of file AtmosModel.h.

double Isis::AtmosModel::AtmosWha ( ) const

inline

Return atmospheric Wha value.

Definition at line 139 of file AtmosModel.h.

Referenced by Isis::HapkeAtm1::AtmosModelAlgorithm(), and Isis::HapkeAtm2::AtmosModelAlgorithm().

void Isis::AtmosModel::CalcAtmEffect	(	double	pha,
		double	inc,
		double	ema,
		double *	pstd,
		double *	trans,
		double *	trans0,
		double *	sbar,
		double *	transs
	)

Calculate the atmospheric scattering effect using photometric angle information.

Parameters

pha	phase angle
inc	incidence angle
ema	emission angle
pstd	pure atmospheric-scattering term
trans	transmission of surface reflected light through the atmosphere overall
trans0	transmission of surface reflected light through the atmosphere with no scatterings in the atmosphere
sbar	illumination of the ground by the sky

Exceptions

Isis::IException::User "Invalid photometric angles"

Definition at line 469 of file AtmosModel.cpp.

Referenced by Isis::AlbedoAtm::AlbedoAtm(), and Isis::AlbedoAtm::NormModelAlgorithm().

double Isis::AtmosModel::Ei ( double x )

static

This routine computes the exponential integral, Ei(x).

This is defined as

$Ei(x) = - \int_{-x}^{\infty} \frac{e^{-t}}{t}\mathrm{d}t = \int_{-\infty}^{x} \frac{e^{t}}{t}\mathrm{d}t$

for x > 0.

For small x, this method uses the power series,

$Ei(x) = \gamma + \ln x + \frac{x}{1*1!} + \frac{x^2}{2*2!} + ...$

where $\gamma = 0.5772156649...$ is Euler's constant, and for large x, the asymptotic series is used,

$Ei(x) \sim \frac{e^x}{x} (1 + \frac{1!}{x} + \frac{2!}{x^2} + ...)$

See Also: mathworld.wolfram.com/ExponentialIntegral.html

Parameters

x	Value at which the exponential integral will be computed, x > 0.0

Returns: double The exponential integral for the given x.

Exceptions

Isis::IException::Programmer	"Invalid arguments. Definition requires x > 0.0."
Isis::IException::Math	"Power series failed to converge"

History:

1999-08-11 K Teal Thompson - Original version named pht_r8ei in Isis2.

2007-02-20 Janet Barrett - Imported to Isis3 in NumericalMethods class named r8ei().

2008-11-05 Jeannie Walldren - Renamed and modified input parameters. Added documentation.

Definition at line 223 of file AtmosModel.cpp.

References _FILEINFO_.

Referenced by Isis::Isotropic2::AtmosModelAlgorithm(), Isis::HapkeAtm2::AtmosModelAlgorithm(), and Isis::Anisotropic2::AtmosModelAlgorithm().

double Isis::AtmosModel::En	(	unsigned int	n,
		double	x
	)

static

This routine evaluates the generalized exponential integral, E_n(x).

This is defined as

$E_n(x) = \int_{1}^{\infty} \frac{e^{-xt}}{t^n}\mathrm{d}t \mathrm{ for } x \in \mathbb{R }, n \in \mathbb{Z } \mathrm{such that } x \ge 0.0, n \ge 0$

Notice that if x = 0, then the equation is not defined for n = 0 or n = 1, as these will result in $E_n(x) = \infty$ .

This method uses the following for cases:

For n > 1 and x = 0.0,

$E_n(0) = \frac{1}{n-1}$
For n = 0 and x > 0.0,

$E_0(x) = \frac{e^{-x}}{x}$
For $x >\sim 1.0$ , Lentz's continued fraction algorithm is used,

$E_n(x) = e^{-x}(\frac{1}{x + n - \frac{1*n}{x + n + 2 - \frac{2(n+1)}{x + n + 4 - ...}}})$
For $0.0 < x <\sim 1.0$ , series representation is used,
$E_n(x) = \frac{(-x)^{n-1}}{(n-1)!}[- \ln x + \psi (n)] - \sum_{m=0, m \neq n-1}^{\infty}\frac{(-x)^m}{(m-n+1)m!}$
where $\psi (1) = \gamma$ and $\psi (n) = - \gamma + \sum_{m=1}^{n-1} \frac{1}{m}$ and $\gamma = 0.5772156649...$ is Euler's constant.

The parameter n is of type unsigned int since n cannot be negative.

The routine allows fast evaluation of E_n(x) to any accuracy, $\epsilon$ , within the reach of your machine's word length for floating-point numbers. The only modification required for increased accuracy is to supply Euler's constant with enough significant digits.

See Also: mathworld.wolfram.com/En-Function.html

Parameters

n	Integer value at which the exponential integral will be evaluated (n >= 0)
x	The exponential integral En(x) will be evaluated

Returns: double Value of the exponential integral for the give n and x.

Exceptions

Isis::IException::Programmer "Invalid arguments. Definition requires (x > 0.0 and n >=0 ) or (x >= 0.0 and n > 1)." @throws Isis::IException::Math "Continued fraction failed to converge" @throws Isis::IException::Math "Series representation failed to converge"

History:

1999-08-10 K Teal Thompson - Original version in named pht_r8expint Isis2.

2007-02-20 Janet Barrett - Imported to Isis3 in NumericalMethods class named r8expint().

2008-11-05 Jeannie Walldren - Renamed and modified input parameters. Added documentation.

Definition at line 364 of file AtmosModel.cpp.

References _FILEINFO_.

Referenced by Isis::HapkeAtm1::AtmosModelAlgorithm(), Isis::Isotropic2::AtmosModelAlgorithm(), Isis::Anisotropic1::AtmosModelAlgorithm(), Isis::HapkeAtm2::AtmosModelAlgorithm(), and Isis::Anisotropic2::AtmosModelAlgorithm().

double Isis::AtmosModel::G11Prime ( double tau )

static

Perform Chandra and Van de Hulst's series approximation for the g'11 function needed in second order scattering theory.

Parameters

tau	normal optical depth of atmosphere

Returns: double Value of the g'11 function evaluated at the given tau

History:

1998-12-21 Randy Kirk, USGS - Flagstaff - Original code in Isis2 pht_am_functions

1999-03-12 K Teal Thompson - Port to Unix/ISIS; declare vars; cadd implicit none.

2007-02-20 Janet Barrett - Imported from Isis2 to Isis3 in NumericalMethods class.

2008-11-05 Jeannie Walldren - Moved this method from NumericalMethods class.

Definition at line 147 of file AtmosModel.cpp.

References Isis::PI().

Referenced by Isis::Isotropic2::AtmosModelAlgorithm(), Isis::HapkeAtm2::AtmosModelAlgorithm(), and Isis::Anisotropic2::AtmosModelAlgorithm().

void Isis::AtmosModel::GenerateAhTable ( )

This method computes the values of the atmospheric Ah table and sets the properties of the atmospheric Ah spline.

It obtains the hemispheric albedo by integrating the photometric function times mu over mu = 0 to 1 and then over phi = 0 to 2*pi to calculate the hemispheric reflectance Ah needed for the photometric model with atmosphere. The Trapezoid rule is applied to the table of Ah to obtain bihemispheric albedo Ab. The parameter p_atmosAtmSwitch is set to 0 to integrate Ah.

History:

1998-12-21 Randy Kirk - USGS, Flagstaff - Original specs

1999-01-15 K Teal Thompson - Original code

2000-12-29 Randy Kirk - Modified /hide_inc/ so phi gets passed, etc. moved factors to outside integration

2006-05-30 Randy Kirk - Added code to report the directional hemispheric albedo that relates to thermal balance for simulating Themis images

2007-02-20 Janet Barrett - Imported to Isis3 from Isis2 pht_get_ah_table

2008-11-05 Jeannie Walldren - Modified references to NumericalMethods and replaced r8qromb() with NumericalAtmosApprox::RombergsMethod(). Changed name from PhtGetAhTable().

Definition at line 531 of file AtmosModel.cpp.

References Isis::PI(), Isis::NumericalAtmosApprox::RombergsMethod(), and Isis::IString::UpCase().

Referenced by Isis::AlbedoAtm::AlbedoAtm().

void Isis::AtmosModel::GenerateHahgTables ( )

This method computes the values of the atmospheric Hahg and Hahg0 tables and sets the properties of the atmospheric Hahg and Hahg0 splines.

It integrates functions involving the single particle phase function (assumed to be Hapke Henyey-Greenstein) over mu = 0 to 1 and then over phi = 0 to 2*pi to calculate the corrections needed for the anisotropic photometric model with atmosphere. The Trapezoid rule is applied to the table of Ah to obtain bihemispheric albedo Ab. The parameter p_atmosAtmSwitch is set to 1, 2, 3 to evaluate the 3 required integrals.

History:

1998-12-21 Randy Kirk - USGS, Flagstaff - Original specs

1999-01-15 K Teal Thompson - Original code

2006-07-07 Randy Kirk - Modify get_ah_table to get other integrals

2000-12-29 Randy Kirk - Modified /hide_inc/ so phi gets passed, etc. moved factors to outside integration

2007-02-20 Janet Barrett - Imported to Isis3 from Isis2 pht_get_ah_table

2008-11-05 Jeannie Walldren - Modified references to NumericalMethods and replaced r8qromb() with NumericalAtmosApprox::RombergsMethod(). Changed name from GetHahgTables().

Definition at line 631 of file AtmosModel.cpp.

References Isis::PI(), Isis::NumericalApproximation::Reset(), and Isis::NumericalAtmosApprox::RombergsMethod().

Referenced by Isis::HapkeAtm1::AtmosModelAlgorithm(), and Isis::HapkeAtm2::AtmosModelAlgorithm().

void Isis::AtmosModel::GenerateHahgTablesShadow ( )

This method is a modified version of the GenerateHahgTables method and is used solely for shadow modeling.

Unlike the GenerateHahgTables method, this method does not tabulate the first or third integrals. It only evaluates the middle integral that corrects the sbar variable (illumination of the ground by the sky).

History:

1998-12-21 Randy Kirk - USGS, Flagstaff - Original specs

1999-01-15 K Teal Thompson - Original code

2006-07-07 Randy Kirk - Modify get_ah_table to get other integrals

2000-09-15 Randy Kirk - Delete first, last integrals and table of second integral

2000-12-29 Randy Kirk - Modified /hide_inc/ so phi gets passed, etc. moved factors to outside integration

2011-12-16 Janet Barrett - Imported to Isis3 from Isis2 get_hahgsb_shad routine in the not_shadow_tau set of routines

Definition at line 720 of file AtmosModel.cpp.

References Isis::PI(), Isis::NumericalApproximation::Reset(), and Isis::NumericalAtmosApprox::RombergsMethod().

Referenced by Isis::HapkeAtm1::AtmosModelAlgorithm(), and Isis::HapkeAtm2::AtmosModelAlgorithm().

void Isis::AtmosModel::SetAtmosAtmSwitch ( const int atmswitch )

Set the switch that controls the function that will be integrated.

This method is only used for testing the methods in this class. This parameter is limited to the values 0, 1, 2, and 3.

Parameters

atmswitch Internal atmospheric function parameter, there is no default

Exceptions

Isis::IException::User "Invalid value of atmospheric atmswitch"

Definition at line 773 of file AtmosModel.cpp.

References _FILEINFO_.

void Isis::AtmosModel::SetAtmosBha ( const double bha )

Set the Anisotropic Atmospheric function parameter.

This is the coefficient of the single particle Legendre phase function. This parameter is limited to values that are >=-1 and <=1.

Parameters

bha	Anisotropic atmospheric function parameter, default is 0.85

Exceptions

Isis::IException::User "Invalid value of atmospheric bha"

Definition at line 793 of file AtmosModel.cpp.

References _FILEINFO_.

void Isis::AtmosModel::SetAtmosEstTau ( const string esttau )

Estimate the optical depth tau using shadows.

Author: Janet Barrett (12/16/2011)

Parameters

esttau true/false

Definition at line 996 of file AtmosModel.cpp.

References _FILEINFO_, and Isis::IString::UpCase().

void Isis::AtmosModel::SetAtmosHga ( const double hga )

Set the Hapke atmospheric function parameter.

This is the coefficient of the single particle Henyey-Greenstein phase function. This parameter is limited to values that are >-1 and <1.

Parameters

hga	Hapke atmospheric function parameter, default is 0.68

Exceptions

Isis::IException::User "Invalid value of atmospheric hga"

Definition at line 814 of file AtmosModel.cpp.

References _FILEINFO_.

void Isis::AtmosModel::SetAtmosHnorm ( const double hnorm )

Set the Atmospheric function parameter.

This is the atmospheric shell thickness normalized to the planet radius and is used to modify angles to get more accurate path lengths near the terminator (ratio of scale height to the planetary radius). This parameter is limited to values that are >=0.

Parameters

hnorm Atmospheric function parameter, default is 0.003

Definition at line 962 of file AtmosModel.cpp.

References _FILEINFO_, and Isis::toString().

void Isis::AtmosModel::SetAtmosInc ( const double inc )

Set the incidence angle.

This method is only used for testing the methods in this class. This parameter is limited to values >=0 and <=90.

Parameters

inc	Internal atmospheric function parameter, there is no default

Exceptions

Isis::IException::User "Invalid value of atmospheric inc"

Definition at line 833 of file AtmosModel.cpp.

References _FILEINFO_, and Isis::PI().

void Isis::AtmosModel::SetAtmosIord ( const string offset )

Set additive offset in fit.

Author: Sharmila Prasad (8/18/2011)

Parameters

offset true/false

Definition at line 977 of file AtmosModel.cpp.

References _FILEINFO_, and Isis::IString::UpCase().

void Isis::AtmosModel::SetAtmosNulneg ( const string nulneg )

Set the Atmospheric function parameter.

This determines if negative values after removal of atmospheric effects will be set to NULL. This parameter is limited to values of YES or NO.

Parameters

nulneg Atmospheric function parameter, default is NO

Exceptions

Isis::IException::User "Invalid value of atmospheric nulneg"

Definition at line 855 of file AtmosModel.cpp.

References _FILEINFO_, and Isis::IString::UpCase().

void Isis::AtmosModel::SetAtmosPhi ( const double phi )

Set the azimuth angle.

This method is only used for testing the methods in this class. This parameter is limited to values >=0 and <=360.

Parameters

phi	Internal atmospheric function parameter, there is no default

Exceptions

Isis::IException::User "Invalid value of atmospheric phi"

Definition at line 878 of file AtmosModel.cpp.

References _FILEINFO_, and Isis::PI().

void Isis::AtmosModel::SetAtmosTau ( const double tau )

Set the Atmospheric function parameter.

This specifies the normal optical depth of the atmosphere. This parameter is limited to values that are >=0.

Parameters

tau	Atmospheric function parameter, default is 0.28

Exceptions

Isis::IException::User "Invalid value of atmospheric tau"

Definition at line 897 of file AtmosModel.cpp.

References _FILEINFO_.

void Isis::AtmosModel::SetAtmosTauref ( const double tauref )

Set the Atmospheric function parameter.

This specifies the reference optical depth of the atmosphere to which the image will be normalized. This parameter is limited to values that are >=0.

Parameters

tauref Atmospheric function parameter, default is 0.0

Exceptions

Isis::IException::User "Invalid value of atmospheric tauref"

Definition at line 916 of file AtmosModel.cpp.

References _FILEINFO_.

void Isis::AtmosModel::SetAtmosWha ( const double wha )

Set the Atmospheric function parameter.

This is the single- scattering albedo of atmospheric particles. This parameter is limited to values that are >0 and <=1.

Parameters

wha	Atmospheric function parameter, default is 0.95

Exceptions

Isis::IException::User "Invalid value of atmospheric wha"

Definition at line 935 of file AtmosModel.cpp.

References _FILEINFO_.

void Isis::AtmosModel::SetStandardConditions ( bool standard )

virtual

Used to calculate atmosphere at standard conditions.

Definition at line 492 of file AtmosModel.cpp.

Referenced by Isis::AlbedoAtm::AlbedoAtm().

bool Isis::AtmosModel::TauOrWhaChanged ( ) const

protected

Checks whether tau or wha have changed.

Returns: bool True if either have changed.

Definition at line 948 of file AtmosModel.cpp.

Referenced by Isis::HapkeAtm1::AtmosModelAlgorithm(), Isis::Isotropic2::AtmosModelAlgorithm(), Isis::Anisotropic1::AtmosModelAlgorithm(), Isis::HapkeAtm2::AtmosModelAlgorithm(), and Isis::Anisotropic2::AtmosModelAlgorithm().

Member Data Documentation

bool Isis::AtmosModel::p_atmosAddOffset

protected

Allow additive offset in fit.

Definition at line 284 of file AtmosModel.h.

NumericalApproximation Isis::AtmosModel::p_atmosAhSpline

protected

Spline object for the atmospheric Ah Table. Properties are set in GenerateAhTable().

Definition at line 299 of file AtmosModel.h.

bool Isis::AtmosModel::p_atmosEstTau

protected

Estimate optical depth tau using shadows.

Definition at line 285 of file AtmosModel.h.

Referenced by Isis::HapkeAtm1::AtmosModelAlgorithm(), and Isis::HapkeAtm2::AtmosModelAlgorithm().

NumericalApproximation Isis::AtmosModel::p_atmosHahgt0Spline

protected

Spline object for the atmospheric Hahg0 Table. Properties are set in GenerateHahgTables().

Definition at line 303 of file AtmosModel.h.

Referenced by Isis::HapkeAtm1::AtmosModelAlgorithm(), and Isis::HapkeAtm2::AtmosModelAlgorithm().

NumericalApproximation Isis::AtmosModel::p_atmosHahgtSpline

protected

Spline object for the atmospheric Hahg Table. Properties are set in GenerateHahgTables().

Definition at line 301 of file AtmosModel.h.

Referenced by Isis::HapkeAtm1::AtmosModelAlgorithm(), and Isis::HapkeAtm2::AtmosModelAlgorithm().

double Isis::AtmosModel::p_atmosHnorm

protected

Atmospheric shell thickness normalized to planet radius.

Definition at line 283 of file AtmosModel.h.

Referenced by Isis::HapkeAtm1::AtmosModelAlgorithm(), Isis::Isotropic2::AtmosModelAlgorithm(), Isis::Anisotropic1::AtmosModelAlgorithm(), Isis::HapkeAtm2::AtmosModelAlgorithm(), and Isis::Anisotropic2::AtmosModelAlgorithm().

double Isis::AtmosModel::p_pstd

protected

Pure atmospheric-scattering term.

Definition at line 274 of file AtmosModel.h.

Referenced by Isis::HapkeAtm1::AtmosModelAlgorithm(), Isis::Isotropic2::AtmosModelAlgorithm(), Isis::Anisotropic1::AtmosModelAlgorithm(), Isis::HapkeAtm2::AtmosModelAlgorithm(), and Isis::Anisotropic2::AtmosModelAlgorithm().

double Isis::AtmosModel::p_sbar

protected

Illumination of the ground by the sky.

Definition at line 278 of file AtmosModel.h.

Referenced by Isis::HapkeAtm1::AtmosModelAlgorithm(), Isis::Isotropic2::AtmosModelAlgorithm(), Isis::Anisotropic1::AtmosModelAlgorithm(), Isis::HapkeAtm2::AtmosModelAlgorithm(), and Isis::Anisotropic2::AtmosModelAlgorithm().

double Isis::AtmosModel::p_trans

protected

Transmission of surface reflected light through the atmosphere overall.

Definition at line 275 of file AtmosModel.h.

Referenced by Isis::HapkeAtm1::AtmosModelAlgorithm(), Isis::Isotropic2::AtmosModelAlgorithm(), Isis::Anisotropic1::AtmosModelAlgorithm(), Isis::HapkeAtm2::AtmosModelAlgorithm(), and Isis::Anisotropic2::AtmosModelAlgorithm().

double Isis::AtmosModel::p_trans0

protected

Transmission of surface reflected light through the atmosphere with no scatterings in the atmosphere.

Definition at line 276 of file AtmosModel.h.

Referenced by Isis::HapkeAtm1::AtmosModelAlgorithm(), Isis::Isotropic2::AtmosModelAlgorithm(), Isis::Anisotropic1::AtmosModelAlgorithm(), Isis::HapkeAtm2::AtmosModelAlgorithm(), and Isis::Anisotropic2::AtmosModelAlgorithm().

double Isis::AtmosModel::p_transs

protected

Transmission of light that must be subtracted from the flat surface model to get the shadow model.

Definition at line 277 of file AtmosModel.h.

Referenced by Isis::HapkeAtm1::AtmosModelAlgorithm(), Isis::Isotropic2::AtmosModelAlgorithm(), Isis::Anisotropic1::AtmosModelAlgorithm(), Isis::HapkeAtm2::AtmosModelAlgorithm(), and Isis::Anisotropic2::AtmosModelAlgorithm().

The documentation for this class was generated from the following files:

src/base/objs/AtmosModel/AtmosModel.h
src/base/objs/AtmosModel/AtmosModel.cpp

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