Internal functions associated with size distributions. More...

#include "array.h"
#include "gridded_fields.h"
#include "interpolation.h"
#include "matpackVII.h"
#include "messages.h"
#include "optproperties.h"
#include "ppath.h"

Macros
#define	START_OF_PSD_METHODS()

Functions
void	psd_cloudice_MH97 (Vector &psd, const Vector &diameter, const Numeric &iwc, const Numeric &t, const bool noisy)
	The MH97 cloud ice PSD. More...

void	psd_mgd_mass_and_something (Matrix &psd_data, Tensor3 &dpsd_data_dx, const String &something, const Vector &psd_size_grid, const Vector &pnd_agenda_input_t, const Matrix &pnd_agenda_input, const ArrayOfString &pnd_agenda_input_names, const ArrayOfString &dpnd_data_dx_names, const Numeric &scat_species_a, const Numeric &scat_species_b, const Numeric &n0, const Numeric &mu, const Numeric &la, const Numeric &ga, const Numeric &t_min, const Numeric &t_max, const Index &picky, const Verbosity &)
	Code common to MGD PSD involving the integrated mass. More...

void	psd_mono_common (Matrix &psd_data, Tensor3 &dpsd_data_dx, const String &type, const Vector &pnd_agenda_input_t, const Matrix &pnd_agenda_input, const ArrayOfString &pnd_agenda_input_names, const ArrayOfString &dpnd_data_dx_names, const ArrayOfArrayOfScatteringMetaData &scat_meta, const Index &species_index, const Numeric &t_min, const Numeric &t_max, const Index &picky, const Verbosity &)
	Code common to PSDs of mono type. More...

void	psd_rain_W16 (Vector &psd, const Vector &diameter, const Numeric &rwc)
	The Wang16 rain DSD DEPRECATED BY NEW MGD_SMM_COMMON Only included for compatibility with "old" pnd_fieldCalcFromscat_speciesField. More...

void	psd_mgd_smm_common (Matrix &psd_data, Tensor3 &dpsd_data_dx, const String &psd_name, const Vector &psd_size_grid, const Vector &pnd_agenda_input_t, const Matrix &pnd_agenda_input, const ArrayOfString &pnd_agenda_input_names, const ArrayOfString &dpnd_data_dx_names, const Numeric &scat_species_a, const Numeric &scat_species_b, const Numeric &n_alpha_in, const Numeric &n_b_in, const Numeric &mu_in, const Numeric &gamma_in, const Numeric &t_min, const Numeric &t_max, const Index &picky, const Verbosity &)
	Code common to a number of modified gamma PSDs used with single-moment mass schemes. More...

void	psd_snow_F07 (Vector &psd, const Vector &diameter, const Numeric &swc, const Numeric &t, const Numeric alpha, const Numeric beta, const String &regime)
	The F07 snow PSD. More...

void	psd_SB06 (Vector &psd, Matrix &dpsd, const Vector &mass, const Numeric &N_tot, const Numeric &WC, const String &hydrometeor_type)

void	psd_MY05 (Vector &psd, Matrix &dpsd, const Vector &diameter_max, const Numeric N_tot, const Numeric WC, const String psd_type)

Numeric	dm_from_iwc_n0 (Numeric iwc, Numeric n0, Numeric rho)
	Derives Dm from IWC and N0star. More...

Numeric	n0_from_iwc_dm (Numeric iwc, Numeric dm, Numeric rho)
	Derives N0star from IWC and Dm. More...

Numeric	n0_from_t (Numeric t)
	Sets N0star based on temperature. More...

Detailed Description

Internal functions associated with size distributions.

Author: Jana Mendrok Patrick Eriksson

Date: 2017-11-05

Definition in file psd.h.

Macro Definition Documentation

◆ START_OF_PSD_METHODS

#define START_OF_PSD_METHODS ( )

Definition at line 45 of file psd.h.

Function Documentation

◆ dm_from_iwc_n0()

Numeric dm_from_iwc_n0	(	Numeric	iwc,
		Numeric	n0,
		Numeric	rho
	)

Derives Dm from IWC and N0star.

For definition of Dm and N0star follows the DARDAR PSD.

Parameters

[in]	iwc	IWC-value
[in]	n0	N0star value
[in]	rho	Density (of water or ice)

Returns: Derived Dm-value

Author: Simon Pfreundschuh

Date: 20??-??-??

Definition at line 1241 of file psd.cc.

◆ n0_from_iwc_dm()

Numeric n0_from_iwc_dm	(	Numeric	iwc,
		Numeric	dm,
		Numeric	rho
	)

Derives N0star from IWC and Dm.

For definition of Dm and N0star follows the DARDAR PSD.

Parameters

[in]	iwc	IWC-value
[in]	dm	Dm-value
[in]	rho	Density (of water or ice)

Returns: Derived N0star-value

Author: Simon Pfreundschuh

Date: 20??-??-??

Definition at line 1249 of file psd.cc.

◆ n0_from_t()

Numeric n0_from_t ( Numeric t )

Sets N0star based on temperature.

For definition of N0star follows the DARDAR PSD.

This a priori parameterisation is taken from Table 5 in "Normalized particle size distribution for remote sensing application" by Delanoë et al., JGR, 2014.

Parameters

[in] t temperature

Returns: Derived N0star-value

Author: Simon Pfreundschuh

Date: 20??-??-??

Definition at line 1257 of file psd.cc.

◆ psd_cloudice_MH97()

void psd_cloudice_MH97	(	Vector &	psd,
		const Vector &	diameter,
		const Numeric &	iwc,
		const Numeric &	t,
		const bool	noisy
	)

The MH97 cloud ice PSD.

Handles a vector of sizes at a time. Implicitly assumes particles of water ice. Strictly requires IWC and T to be positive, i.e. calling method needs to ensure this.

Parameters

[out]	psd	particle number density per size interval [#/m3*m]
[in]	diameter	size of the scattering elements (supposed to be mass (aka volume) equivalent diameter of pure ice particle) [m]
[in]	iwc	atmospheric ice water content [kg/m3]
	t	atmospheric temperature [K]
	noisy	flag whether to add noise onto PSD parameters according to their reported error statistics

Author: Jana Mendrok, Daniel Kreyling

Date: 2017-06-07

Definition at line 58 of file psd.cc.

References a1, b1, b2, DENSITY_OF_ICE, ARTS::Var::mc_seed(), min, ConstVectorView::nelem(), PI, pow(), ran_gaussian(), Vector::resize(), Rng::seed(), sqrt(), and ARTS::Var::time().

Referenced by psdMcFarquaharHeymsfield97().

◆ psd_mgd_mass_and_something()

void psd_mgd_mass_and_something	(	Matrix &	psd_data,
		Tensor3 &	dpsd_data_dx,
		const String &	something,
		const Vector &	psd_size_grid,
		const Vector &	pnd_agenda_input_t,
		const Matrix &	pnd_agenda_input,
		const ArrayOfString &	pnd_agenda_input_names,
		const ArrayOfString &	dpnd_data_dx_names,
		const Numeric &	scat_species_a,
		const Numeric &	scat_species_b,
		const Numeric &	n0,
		const Numeric &	mu,
		const Numeric &	la,
		const Numeric &	ga,
		const Numeric &	t_min,
		const Numeric &	t_max,
		const Index &	picky,
		const Verbosity &
	)

Code common to MGD PSD involving the integrated mass.

Valid choices for something is "mean size", "median size", "mean particle mass" and "Ntot".

Parameters

[out]	psd_data	As the WSV wih same name
[out]	dpsd_data_dx	As the WSV wih same name
[in]	something	Text string gving the second moment
[in]	psd_size_grid	As the WSV wih same name
[in]	pnd_agenda_input_t	As the WSV wih same name
[in]	pnd_agenda_input	As the WSV wih same name
[in]	pnd_agenda_input_names	As the WSV wih same name
[in]	dpnd_data_dx_names	As the WSV wih same name
[in]	scat_species_a	As the WSV wih same name
[in]	scat_species_b	As the WSV wih same name
[in]	n0	Selection for N0 parameter
[in]	mu	Selection for mu parameter
[in]	la	Selection for lambda parameter
[in]	ga	Selection for gamma parameter
[in]	t_min	PSD set to zero below this temperature
[in]	t_max	PSD set to zero above this temperature
[in]	picky	Triggers more check of input

Author: Patrick Eriksson

Date: 2017-11-05

Definition at line 195 of file psd.cc.

References ARTS::Var::dpsd_data_dx(), joker, mgd_with_derivatives(), ARTS::Var::pnd_agenda_input(), ARTS::Var::pnd_agenda_input_t(), pow(), ARTS::Var::psd_data(), ARTS::Var::psd_size_grid(), ARTS::Var::scat_species_a(), ARTS::Var::scat_species_b(), and START_OF_PSD_METHODS.

Referenced by psdModifiedGammaMassMeanParticleMass(), psdModifiedGammaMassNtot(), psdModifiedGammaMassXmean(), and psdModifiedGammaMassXmedian().

◆ psd_mgd_smm_common()

void psd_mgd_smm_common	(	Matrix &	psd_data,
		Tensor3 &	dpsd_data_dx,
		const String &	psd_name,
		const Vector &	psd_size_grid,
		const Vector &	pnd_agenda_input_t,
		const Matrix &	pnd_agenda_input,
		const ArrayOfString &	pnd_agenda_input_names,
		const ArrayOfString &	dpnd_data_dx_names,
		const Numeric &	scat_species_a,
		const Numeric &	scat_species_b,
		const Numeric &	n_alpha_in,
		const Numeric &	n_b_in,
		const Numeric &	mu_in,
		const Numeric &	gamma_in,
		const Numeric &	t_min,
		const Numeric &	t_max,
		const Index &	picky,
		const Verbosity &
	)

Code common to a number of modified gamma PSDs used with single-moment mass schemes.

All PSDs take the form n(D) = n_alpha lam^n_b D^mu exp(-lam*D^gamma).

Parameters

[out]	psd_data	As the WSV wih same name
[out]	dpsd_data_dx	As the WSV wih same name
[in]	psd_name	Name of selected PSD
[in]	psd_size_grid	As the WSV wih same name
[in]	pnd_agenda_input_t	As the WSV wih same name
[in]	pnd_agenda_input	As the WSV wih same name
[in]	pnd_agenda_input_names	As the WSV wih same name
[in]	dpnd_data_dx_names	As the WSV wih same name
[in]	scat_species_a	As the WSV wih same name
[in]	scat_species_b	As the WSV wih same name
[in]	t_min	PSD set to zero below this temperature
[in]	t_max	PSD set to zero above this temperature
[in]	n_alpha_in	Value of n_alpha for psd_name "generic"
[in]	n_b_in	Value of n_b for psd_name "generic"
[in]	mu_in	Value of mu for psd_name "generic"
[in]	gamma_in	Value of gamma for psd_name "generic"
[in]	picky	Triggers more check of input

Author: Stuart Fox

Date: 2019-10-02

Definition at line 727 of file psd.cc.

References ARTS::Var::pnd_agenda_input(), ARTS::Var::pnd_agenda_input_t(), ARTS::Var::scat_species_a(), ARTS::Var::scat_species_b(), and START_OF_PSD_METHODS.

Referenced by psdAbelBoutle12(), psdFieldEtAl19(), psdModifiedGammaMassSingleMoment(), and psdWangEtAl16().

◆ psd_mono_common()

void psd_mono_common	(	Matrix &	psd_data,
		Tensor3 &	dpsd_data_dx,
		const String &	type,
		const Vector &	pnd_agenda_input_t,
		const Matrix &	pnd_agenda_input,
		const ArrayOfString &	pnd_agenda_input_names,
		const ArrayOfString &	dpnd_data_dx_names,
		const ArrayOfArrayOfScatteringMetaData &	scat_meta,
		const Index &	species_index,
		const Numeric &	t_min,
		const Numeric &	t_max,
		const Index &	picky,
		const Verbosity &
	)

Code common to PSDs of mono type.

Parameters

[out]	psd_data	As the WSV wih same name
[out]	dpsd_data_dx	As the WSV wih same name
[in]	pnd_agenda_input_t	As the WSV wih same name
[in]	pnd_agenda_input	As the WSV wih same name
[in]	pnd_agenda_input_names	As the WSV wih same name
[in]	dpnd_data_dx_names	As the WSV wih same name
[in]	scat_meta	As the WSV wih same name
[in]	species_index	Index of the scattering species of concern
[in]	t_min	PSD set to zero below this temperature
[in]	t_max	PSD set to zero above this temperature
[in]	picky	Triggers more check of input

Author: Patrick Eriksson

Date: 2017-11-05

Definition at line 606 of file psd.cc.

References ARTS::Var::dpsd_data_dx(), Absorption::nelem(), ARTS::Var::pnd_agenda_input(), ARTS::Var::pnd_agenda_input_t(), ARTS::Var::psd_data(), ARTS::Var::psd_size_grid(), ARTS::Var::scat_meta(), START_OF_PSD_METHODS, and ARTS::Var::x().

Referenced by psdMonoDispersive(), and psdMonoMass().

◆ psd_MY05()

void psd_MY05	(	Vector &	psd,
		Matrix &	dpsd,
		const Vector &	diameter_max,
		const Numeric	N_tot,
		const Numeric	WC,
		const String	psd_type
	)

Calculates the particle number density field according to the Milbrandt and Yau two moment scheme, which is used in the GEM model. See also milbrandt and yau, 2005. One call of this function calculates one particle number density.

Returns: dN particle number density per diameter interval [#/m3/m]

Parameters

mass	Mass of scattering particle [kg]
N_tot	Total number of particles (0th moment) [#/m3/m/kg^mu]
M	Total mass concentration of Particles (1st moment) [kg/m^3]
psd_type	string with a tag defining the (hydrometeor) scheme

Author: Manfred Brath

Date: 2017-08-01

Definition at line 1118 of file psd.cc.

References temp.

Referenced by psdMilbrandtYau05().

◆ psd_rain_W16()

void psd_rain_W16	(	Vector &	psd,
		const Vector &	diameter,
		const Numeric &	rwc
	)

The Wang16 rain DSD DEPRECATED BY NEW MGD_SMM_COMMON Only included for compatibility with "old" pnd_fieldCalcFromscat_speciesField.

Uses rain water water content. PSD follows an exponential distribution. Handles a vector of sizes at a time.

Reference: Wang et al., 2016, "Investigation of liquid cloud microphysical properties of deep convective systems: 1. Parameterization raindrop size distribution and its application for stratiform rain estimation". Ported from CloudArts matlab implementation.

Parameters

[out]	psd	particle number density per size interval [#/m3*m]
[in]	diameter	size of the scattering elements (volume equivalent diameter) [m]
[in]	rwc	atmospheric rain water content [kg/m3]

Author: Jana Mendrok, Bengt Rydberg

Date: 2017-06-07

Definition at line 699 of file psd.cc.

References DENSITY_OF_WATER, ConstVectorView::nelem(), PI, pow(), and Vector::resize().

◆ psd_SB06()

void psd_SB06	(	Vector &	psd,
		Matrix &	dpsd,
		const Vector &	mass,
		const Numeric &	N_tot,
		const Numeric &	WC,
		const String &	hydrometeor_type
	)

Calculates the particle number density field according to the two moment scheme of Seifert and Beheng, 2006b,a that is used in the ICON model. One call of this function calculates one particle number density.

Returns: dN particle number density per diameter interval [#/m3/m]

Parameters

mass	Mass of scattering particle [kg]
N_tot	Total number of particles (0th moment) [#/m3/m/kg^mu]
M	Total mass concentration of Particles (1st moment) [kg/m^3]
psd_type	string with a tag defining the (hydrometeor) scheme

Author: Manfred Brath

Date: 2015-01-19

Definition at line 977 of file psd.cc.

Referenced by psdSeifertBeheng06().

◆ psd_snow_F07()

void psd_snow_F07	(	Vector &	psd,
		const Vector &	diameter,
		const Numeric &	swc,
		const Numeric &	t,
		const Numeric	alpha,
		const Numeric	beta,
		const String &	regime
	)

The F07 snow PSD.

Handles a vector of sizes at a time. Strictly requires SWC and T to be positive and regime to be either "TR" or "ML", i.e. calling methods need to ensure these. No further limitations on the allowed temperatures here. Strictly valid it's only within -60<=t<=0C, the measured t-range the parametrization is based on. However, this is left to be handled by the calling methods.

Parameters

[out]	psd	particle number density per size interval [#/m3*m]
[in]	diameter	size of the scattering elements (supposed to be maximum diameter of the ice particles) [m]
[in]	swc	atmospheric snow water content [kg/m^3]
[in]	t	atmospheric temperature [K]
[in]	alpha	mass-dimension relationship scaling factor (m=alpha*(Dmax/D0)^beta) [kg]
[in]	beta	mass-dimension relationship exponent [-]
[in]	regime	parametrization regime to apply (TR=tropical, ML=midlatitude)

Author: Manfred Brath, Jana Mendrok

Date: 2017-06-13

Definition at line 886 of file psd.cc.

Macros

Functions

Detailed Description

Macro Definition Documentation

◆ START_OF_PSD_METHODS

Function Documentation

◆ dm_from_iwc_n0()

◆ n0_from_iwc_dm()

◆ n0_from_t()

◆ psd_cloudice_MH97()

◆ psd_mgd_mass_and_something()

◆ psd_mgd_smm_common()

◆ psd_mono_common()

◆ psd_MY05()

◆ psd_rain_W16()

◆ psd_SB06()

◆ psd_snow_F07()