microphysics.cc File Reference

Internal functions for microphysics calculations (size distributions etc.) More...

#include "microphysics.h"
#include "arts_constants.h"
#include "arts_conversions.h"
#include <algorithm>
#include <cmath>
#include <ctime>
#include <limits>
#include <stdexcept>
#include "arts.h"
#include "check_input.h"
#include "cloudbox.h"
#include "lin_alg.h"
#include "logic.h"
#include "math_funcs.h"
#include "mc_antenna.h"
#include "messages.h"
#include "physics_funcs.h"
#include "ppath.h"
#include "psd.h"
#include "rng.h"
#include "sorting.h"

Go to the source code of this file.

Functions
Numeric	asymmetry_parameter (ConstVectorView sa_grid, ConstVectorView pfun)
	asymmetry_parameter
void	derive_scat_species_a_and_b (Numeric &a, Numeric &b, const Vector &x, const Vector &mass, const Numeric &x_fit_start, const Numeric &x_fit_end)

Variables
constexpr Numeric	PI =Constant::pi
constexpr Numeric	DENSITY_OF_ICE =Constant::density_of_ice_at_0c
constexpr Numeric	DENSITY_OF_WATER =Constant::denity_of_water_at_4c
constexpr Numeric	DEG2RAD =Conversion::deg2rad(1)

Detailed Description

Internal functions for microphysics calculations (size distributions etc.)

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Author

Jana Mendrok, Daniel Kreyling, Manfred Brath, Patrick Eriksson

Date

2017-08-01

Author

Jana Mendrok, Patrick Eriksson

Date

2017-11-05

Internal functions associated with size distributions

Definition in file microphysics.cc.

Function Documentation

asymmetry_parameter()

Numeric asymmetry_parameter	(	ConstVectorView	za_grid,
		ConstVectorView	pfun
	)

asymmetry_parameter

Calculates the asymmetry parameter, TRO data only

Parameters

sa_grid	Scattering angle grid
pfun	Phase function of TRO-type

Returns

Assymetry parameter

Author

Patrick Eriksson

Date

2022-03-06

Definition at line 43 of file microphysics.cc.

References ARTS_ASSERT, DEG2RAD, and trapz().

Referenced by HydrotableCalc().

derive_scat_species_a_and_b()

void derive_scat_species_a_and_b	(	Numeric &	a,
		Numeric &	b,
		const Vector &	x,
		const Vector &	mass,
		const Numeric &	x_fit_start,
		const Numeric &	x_fit_end
	)

Derives a and b for relationship mass = a * x^b

The parameters a and b are derived by a fit including all data inside the size range [x_fit_start,x_fit_end].

The vector x must have been checked to have at least 2 elements.

An error is thrown if less than two data points are found inside [x_fit_start,x_fit_end].

Returns

a Derived a parameter.

b Derived b parameter.

Parameters

x	Size grid
mass	Particle masses
x_fit_start	Start point of x-range to use for fitting
x_fit_end	Endpoint of x-range to use for fitting

Author

Jana Mendrok, Patrick Eriksson

Date

2017-10-18

Definition at line 79 of file microphysics.cc.

References a, ARTS_ASSERT, b, and get_sorted_indexes().

Referenced by ScatSpeciesSizeMassInfo().

Variable Documentation

DEG2RAD

constexpr Numeric DEG2RAD =Conversion::deg2rad(1)

inlineconstexpr

Definition at line 16 of file microphysics.cc.

Referenced by asymmetry_parameter().

DENSITY_OF_ICE

constexpr Numeric DENSITY_OF_ICE =Constant::density_of_ice_at_0c

inlineconstexpr

Definition at line 14 of file microphysics.cc.

DENSITY_OF_WATER

constexpr Numeric DENSITY_OF_WATER =Constant::denity_of_water_at_4c

inlineconstexpr

Definition at line 15 of file microphysics.cc.

PI

constexpr Numeric PI =Constant::pi

inlineconstexpr

Definition at line 13 of file microphysics.cc.