m_microphysics.cc File Reference

Workspace functions related to particle micophysics (e.g. size distributions). More...

#include <cmath>
#include <cstdlib>
#include <stdexcept>
#include "array.h"
#include "arts.h"
#include "auto_md.h"
#include "check_input.h"
#include "cloudbox.h"
#include "file.h"
#include "interpolation.h"
#include "lin_alg.h"
#include "logic.h"
#include "math_funcs.h"
#include "messages.h"
#include "microphysics.h"
#include "optproperties.h"
#include "parameters.h"
#include "physics_funcs.h"
#include "psd.h"
#include "rte.h"
#include "sorting.h"
#include "special_interp.h"
#include "xml_io.h"

Go to the source code of this file.

Functions
void	particle_massesFromMetaDataSingleCategory (Matrix &particle_masses, const ArrayOfArrayOfScatteringMetaData &scat_meta, const Verbosity &)
	WORKSPACE METHOD: particle_massesFromMetaDataSingleCategory. More...
void	particle_massesFromMetaData (Matrix &particle_masses, const ArrayOfArrayOfScatteringMetaData &scat_meta, const Verbosity &)
	WORKSPACE METHOD: particle_massesFromMetaData. More...
void	pndFromPsdBasic (Matrix &pnd_data, Tensor3 &dpnd_data_dx, const Vector &pnd_size_grid, const Matrix &psd_data, const Vector &psd_size_grid, const Tensor3 &dpsd_data_dx, const Index &quad_order, const Verbosity &)
	WORKSPACE METHOD: pndFromPsdBasic. More...
void	pndFromPsd (Matrix &pnd_data, Tensor3 &dpnd_data_dx, const Vector &pnd_size_grid, const Matrix &psd_data, const Vector &psd_size_grid, const Tensor3 &dpsd_data_dx, const ArrayOfArrayOfSingleScatteringData &scat_data, const Vector &f_grid, const Index &scat_data_checked, const Index &quad_order, const Index &scat_index, const Numeric &threshold_rsec, const Numeric &threshold_bext, const Numeric &threshold_rpnd, const Verbosity &)
	WORKSPACE METHOD: pndFromPsd. More...
void	pnd_fieldCalcFromParticleBulkProps (Workspace &ws, Tensor4 &pnd_field, ArrayOfTensor4 &dpnd_field_dx, const Index &atmosphere_dim, const Vector &p_grid, const Vector &lat_grid, const Vector &lon_grid, const Tensor3 &t_field, const Index &cloudbox_on, const ArrayOfIndex &cloudbox_limits, const ArrayOfString &scat_species, const ArrayOfArrayOfSingleScatteringData &scat_data, const ArrayOfArrayOfScatteringMetaData &scat_meta, const Tensor4 &particle_bulkprop_field, const ArrayOfString &particle_bulkprop_names, const ArrayOfAgenda &pnd_agenda_array, const ArrayOfArrayOfString &pnd_agenda_array_input_names, const Index &jacobian_do, const ArrayOfRetrievalQuantity &jacobian_quantities, const Verbosity &)
	WORKSPACE METHOD: pnd_fieldCalcFromParticleBulkProps. More...
void	ScatSpeciesSizeMassInfo (Vector &scat_species_x, Numeric &scat_species_a, Numeric &scat_species_b, const ArrayOfArrayOfScatteringMetaData &scat_meta, const Index &species_index, const String &x_unit, const Numeric &x_fit_start, const Numeric &x_fit_end, const Index &do_only_x, const Verbosity &)
	WORKSPACE METHOD: ScatSpeciesSizeMassInfo. More...

Variables
const String	SCATSPECIES_MAINTAG

Detailed Description

Workspace functions related to particle micophysics (e.g. size distributions).

Author

Jana Mendrok, Daniel Kreyling, Manfred Brath, Patrick Eriksson

Date

2017-07-10

These functions are listed in the doxygen documentation as entries of the file auto_md.h.

Definition in file m_microphysics.cc.

Function Documentation

particle_massesFromMetaData()

void particle_massesFromMetaData	(	Matrix &	particle_masses,
		const ArrayOfArrayOfScatteringMetaData &	scat_meta,
		const Verbosity &	verbosity
	)

WORKSPACE METHOD: particle_massesFromMetaData.

Derives particle_masses from scat_meta.

This method is supposed to be used to derive particle_masses when pnd_field is internally calculated using pnd_fieldCalcFromParticleBulkProps* (in contrast to reading it from external sources using ScatElementsPndAndScatAdd and pnd_fieldCalcFrompnd_field_raw*). It extracts the mass information of the scattering elements from scat_meta*. Each scattering species is taken as a separate category of particle_masses, i.e., the resulting particle_masses* matrix will contain as many columns as scattering species are present in scat_meta.

Author

Jana Mendrok

Parameters

[out]	particle_masses	WS Output
[in]	scat_meta	WS Input

Definition at line 109 of file m_microphysics.cc.

References ARTS::Var::particle_masses(), ARTS::Var::scat_meta(), and TotalNumberOfElements().

Referenced by particle_massesFromMetaData_g().

particle_massesFromMetaDataSingleCategory()

void particle_massesFromMetaDataSingleCategory	(	Matrix &	particle_masses,
		const ArrayOfArrayOfScatteringMetaData &	scat_meta,
		const Verbosity &	verbosity
	)

WORKSPACE METHOD: particle_massesFromMetaDataSingleCategory.

Sets particle_masses based on scat_meta assuming all particles are of the same mass category.

This method derives the particle masses from the mass entry of each scattering element. It is assumed that all scattering elements represent particles of the same (bulk) matter (e.g. water or ice). With other words, a single mass category is assumed (see particle_masses for a definition of "mass category").

To be clear, the above are assumptions of the method, the user is free to work with any scattering element. For Earth and just having cloud and particles, the resulting mass category can be seen as the total cloud water content, with possible contribution from both ice and liquid phase.

Author

Jana Mendrok

Patrick Eriksson

Parameters

[out]	particle_masses	WS Output
[in]	scat_meta	WS Input

Definition at line 72 of file m_microphysics.cc.

References ARTS::Var::particle_masses(), ARTS::Var::scat_meta(), and TotalNumberOfElements().

Referenced by particle_massesFromMetaDataSingleCategory_g().

pnd_fieldCalcFromParticleBulkProps()

void pnd_fieldCalcFromParticleBulkProps	(	Workspace &	ws,
		Tensor4 &	pnd_field,
		ArrayOfTensor4 &	dpnd_field_dx,
		const Index &	atmosphere_dim,
		const Vector &	p_grid,
		const Vector &	lat_grid,
		const Vector &	lon_grid,
		const Tensor3 &	t_field,
		const Index &	cloudbox_on,
		const ArrayOfIndex &	cloudbox_limits,
		const ArrayOfString &	scat_species,
		const ArrayOfArrayOfSingleScatteringData &	scat_data,
		const ArrayOfArrayOfScatteringMetaData &	scat_meta,
		const Tensor4 &	particle_bulkprop_field,
		const ArrayOfString &	particle_bulkprop_names,
		const ArrayOfAgenda &	pnd_agenda_array,
		const ArrayOfArrayOfString &	pnd_agenda_array_input_names,
		const Index &	jacobian_do,
		const ArrayOfRetrievalQuantity &	jacobian_quantities,
		const Verbosity &	verbosity
	)

WORKSPACE METHOD: pnd_fieldCalcFromParticleBulkProps.

Converts particle bulk property data to pnd_field.

In short, the method combines scat_species, pnd_agenda_array, particle_bulkprop_field* and their associated variables to derive pnd_field*.

The method does nothing if cloudbox is inactive.

Otherwise, cloudbox limits must be set before calling the method, and particle_bulkprop_field is checked to have non-zero elements just inside the cloudbox.

Author

Patrick Eriksson, Jana Mendrok

Parameters

[in,out]	ws	Workspace
[out]	pnd_field	WS Output
[out]	dpnd_field_dx	WS Output
[in]	atmosphere_dim	WS Input
[in]	p_grid	WS Input
[in]	lat_grid	WS Input
[in]	lon_grid	WS Input
[in]	t_field	WS Input
[in]	cloudbox_on	WS Input
[in]	cloudbox_limits	WS Input
[in]	scat_species	WS Input
[in]	scat_data	WS Input
[in]	scat_meta	WS Input
[in]	particle_bulkprop_field	WS Input
[in]	particle_bulkprop_names	WS Input
[in]	pnd_agenda_array	WS Input
[in]	pnd_agenda_array_input_names	WS Input
[in]	jacobian_do	WS Input
[in]	jacobian_quantities	WS Input

Definition at line 499 of file m_microphysics.cc.

References ARTS::Var::atmosphere_dim(), chk_atm_field(), chk_atm_grids(), chk_if_in_range(), ARTS::Var::cloudbox_limits(), ARTS::Var::cloudbox_on(), ARTS::Var::dpnd_data_dx(), ARTS::Var::dpnd_data_dx_names(), ARTS::Var::dpnd_field_dx(), find_first(), ARTS::Var::jacobian_do(), ARTS::Var::jacobian_quantities(), joker, ARTS::Var::lat_grid(), ARTS::Var::lon_grid(), max, min, Array< base >::nelem(), Absorption::nelem(), ARTS::Var::p_grid(), ARTS::Var::particle_bulkprop_field(), ARTS::Var::particle_bulkprop_names(), ARTS::Var::pnd_agenda_array(), ARTS::Var::pnd_agenda_array_input_names(), pnd_agenda_arrayExecute(), ARTS::Var::pnd_agenda_input(), ARTS::Var::pnd_agenda_input_t(), ARTS::Var::pnd_data(), ARTS::Var::pnd_field(), ARTS::Var::scat_data(), ARTS::Var::scat_meta(), ARTS::Var::scat_species(), SCATSPECIES_MAINTAG, and ARTS::Var::t_field().

Referenced by pnd_fieldCalcFromParticleBulkProps_g().

pndFromPsd()

void pndFromPsd	(	Matrix &	pnd_data,
		Tensor3 &	dpnd_data_dx,
		const Vector &	pnd_size_grid,
		const Matrix &	psd_data,
		const Vector &	psd_size_grid,
		const Tensor3 &	dpsd_data_dx,
		const ArrayOfArrayOfSingleScatteringData &	scat_data,
		const Vector &	f_grid,
		const Index &	scat_data_checked,
		const Index &	quad_order,
		const Index &	scat_index,
		const Numeric &	threshold_se_ext,
		const Numeric &	threshold_ss_ext,
		const Numeric &	threshold_se_pnd,
		const Verbosity &	verbosity
	)

WORKSPACE METHOD: pndFromPsd.

Calculates pnd_data from given psd_data for one scattering species.

Performs integration of the size distribution over the size grid bin deriving pnd (units #/m3) from psd (units #/m3/m). Some checks on the sufficiency of the size grid range and coverage are applied.

quad_order* can be 0 for rectangular or 1 for trapezoidal integration. The only difference is the treatment of the start and end nodes. For trapezoidal their corresponding bins end exactly at the nodes, while for rectangular they extend further out by the half distance to the neighbor node (but not beyond 0).

Attempts to check that the size grids and scat_data represent the bulk extinction sufficiently. Specifically, it is tested that <br> (a) psd*ext is decreasing at the small and large particle size <br> ends of the size grid - but only if scattering species bulk <br> extinction exceeds 1% of threshold_ss_ext. <br> (b) removing the smallest and largest particles changes the <br> resulting bulk extinction by less then a fraction of <br> threshold_se_ext - but only if scattering species bulk <br> extinction exceeds threshold_ss_ext and number density (pnd) <br> of the edge size point at this atmospheric level is larger <br> than threshold_se_pnd times the maximum pnd of this <br> scattering element over all atmospheric levels. Skipping tests in case of low extinction is done in order to minimize issues arising from very low mass densities, particularly at single atmospheric levels, and very low bulk extinctions, i.e. in cases where the effects on the radiance fields are estimated to be low. NOTE: The tests are only approximate and do not guarantee the validity of the resulting bulk properties (and increasing the thresholds will decrease the reliability of the bulk properties).

Author

Jana Mendrok, Patrick Eriksson

Parameters

[out]	pnd_data	WS Output
[out]	dpnd_data_dx	WS Output
[in]	pnd_size_grid	WS Input
[in]	psd_data	WS Input
[in]	psd_size_grid	WS Input
[in]	dpsd_data_dx	WS Input
[in]	scat_data	WS Input
[in]	f_grid	WS Input
[in]	scat_data_checked	WS Input
[in]	quad_order	Generic Input (Default: "1")
[in]	scat_index	Generic Input
[in]	threshold_se_ext	Generic Input (Default: "0.02")
[in]	threshold_ss_ext	Generic Input (Default: "1e-8")
[in]	threshold_se_pnd	Generic Input (Default: "0.02")

Definition at line 209 of file m_microphysics.cc.

References abs, bin_quadweights(), ARTS::Var::dpnd_data_dx(), ARTS::Var::dpsd_data_dx(), ARTS::Var::f_grid(), get_sorted_indexes(), is_increasing(), joker, max, Absorption::nelem(), ARTS::Var::pnd_data(), ARTS::Var::pnd_size_grid(), ARTS::Var::psd_data(), ARTS::Var::psd_size_grid(), ARTS::Var::scat_data(), and ARTS::Var::scat_data_checked().

Referenced by pndFromPsd_g().

pndFromPsdBasic()

void pndFromPsdBasic	(	Matrix &	pnd_data,
		Tensor3 &	dpnd_data_dx,
		const Vector &	pnd_size_grid,
		const Matrix &	psd_data,
		const Vector &	psd_size_grid,
		const Tensor3 &	dpsd_data_dx,
		const Index &	quad_order,
		const Verbosity &	verbosity
	)

WORKSPACE METHOD: pndFromPsdBasic.

Calculates pnd_data from given psd_data.

As pndFromPsdBasic, but without bulk extinction representation checks.

Author

Jana Mendrok, Patrick Eriksson

Parameters

[out]	pnd_data	WS Output
[out]	dpnd_data_dx	WS Output
[in]	pnd_size_grid	WS Input
[in]	psd_data	WS Input
[in]	psd_size_grid	WS Input
[in]	dpsd_data_dx	WS Input
[in]	quad_order	Generic Input (Default: "1")

Definition at line 130 of file m_microphysics.cc.

References bin_quadweights(), ARTS::Var::dpnd_data_dx(), ARTS::Var::dpsd_data_dx(), get_sorted_indexes(), is_increasing(), ARTS::Var::pnd_data(), ARTS::Var::pnd_size_grid(), ARTS::Var::psd_data(), and ARTS::Var::psd_size_grid().

Referenced by pndFromPsdBasic_g().

ScatSpeciesSizeMassInfo()

void ScatSpeciesSizeMassInfo	(	Vector &	scat_species_x,
		Numeric &	scat_species_a,
		Numeric &	scat_species_b,
		const ArrayOfArrayOfScatteringMetaData &	scat_meta,
		const Index &	species_index,
		const String &	x_unit,
		const Numeric &	x_fit_start,
		const Numeric &	x_fit_end,
		const Index &	do_only_x,
		const Verbosity &	verbosity
	)

WORKSPACE METHOD: ScatSpeciesSizeMassInfo.

Derives size and mass information for a scattering species. This method assumes that the mass-size relationship can described by scat_species_a and scat_species_b. See documentation of scat_species_a* for details.

The quantity to be used as size descriptor is here denoted as x, and is selected by setting x_unit. The options are: <br> "dveq" : The size grid is set to scat_meta.diameter_volume_equ <br> "dmax" : The size grid is set to scat_meta.diameter_max <br> "area" : The size grid is set to scat_meta.diameter_area_equ_aerodynamical <br> "mass" : The size grid is set to scat_meta.mass This selection determines scat_species_x.

The parameters scat_species_a and scat_species_b are determined by a numeric fit between scat_species_x and corresponding masses in scat_meta*. This fit is performed over sizes inside the range [x_fit_start,x_fit_end]. This range is allowed to be broader than the coverage of scat_species_x. There must be at least two sizes inside [x_fit_start,x_fit_end].

Author

Manfred Brath

Jana Mendrok

Patrick Eriksson

Parameters

[out]	scat_species_x	WS Output
[out]	scat_species_a	WS Output
[out]	scat_species_b	WS Output
[in]	scat_meta	WS Input
[in]	species_index	Generic Input
[in]	x_unit	Generic Input
[in]	x_fit_start	Generic Input (Default: "0")
[in]	x_fit_end	Generic Input (Default: "1e9")
[in]	do_only_x	Generic Input (Default: "0")

Definition at line 779 of file m_microphysics.cc.

References derive_scat_species_a_and_b(), ARTS::Var::scat_meta(), ARTS::Var::scat_species_a(), ARTS::Var::scat_species_b(), and ARTS::Var::scat_species_x().

Referenced by ScatSpeciesSizeMassInfo_g().

Variable Documentation

SCATSPECIES_MAINTAG

const String SCATSPECIES_MAINTAG

extern

Referenced by pnd_fieldCalcFromParticleBulkProps().