ARTS  1.0.222
Variables
constants.cc File Reference

This file contains global constants. More...

#include "arts.h"
#include "matpackI.h"

Go to the source code of this file.

Variables

const Numeric EARTH_RADIUS = 6.378e6
 Global constant, the radius of the Earth [m]. More...
 
const Numeric EARTH_EQUATORIAL_RADIUS = 6.378137e6
 Global constant, the equatorial radius of the Earth [m], from WGS84. More...
 
const Numeric EARTH_POLAR_RADIUS = 6.3567523e6
 Global constant, the polar radius of the Earth [m], from WGS84. More...
 
const Numeric RAD2DEG = 57.29577951308232
 Global constant, conversion from radians to degrees. More...
 
const Numeric DEG2RAD = 0.01745329251994
 Global constant, conversion from degrees to radians. More...
 
const Numeric PLANCK_CONST = 6.626180e-34
 Global constant, the Planck constant [Js]. More...
 
const Numeric SPEED_OF_LIGHT = 2.99792458e8
 Global constant, spped of light in vaccum [m/s]. More...
 
const Numeric BOLTZMAN_CONST = 1.380662e-23
 Global constant, the Boltzmann constant [J/K]. More...
 
const Numeric AVOGADROS_NUMB = 6.0220450e26
 Global constant, the Avogadro's number [molec/kg]. More...
 
const Numeric ATOMIC_MASS_UNIT = 1.6606E-27
 Atomic mass unit, 12th of a C^12_6 atom. More...
 
const Numeric COSMIC_BG_TEMP = 2.735
 Global constant, Planck temperature for cosmic background radiation [K]. More...
 
const Numeric SUN_TEMP = 6000.0
 Global constant, Planck temperature for solar radiation [K]. More...
 
const Numeric EULER_NUMBER = 2.7182818284590452
 Global constant, e (Euler's number) More...
 
const Numeric LOG10_EULER_NUMBER = 0.43429448190325176
 Global constant, log10(Euler's number) More...
 
const Numeric NAT_LOG_TEN = 2.3025850929940459
 Global constant, ln(10) More...
 
const Numeric NAT_LOG_2 = 0.69314718055994
 Global constant, ln(2) More...
 
const Numeric SQRT_NAT_LOG_2 = 0.832554611
 Global constant, sqrt(ln(2)) More...
 
const Numeric PI = 3.14159265358979
 Global constant, pi. More...
 
const Numeric ATM2PA = 1.01325e5
 Global constant, converts atm to Pa. More...
 
const Numeric TORR2PA = 133.3227
 Global constant, converts torr to Pa. More...
 
const Numeric TEMP_0_C = 273.15
 Global constant, Temperature in Celsius of 0 Kelvin. More...
 
const Numeric PRES_STAND = 101300.25
 Global constant, Standard pressure in Pa. More...
 
const Numeric LOSCHMIDT_CONST = 2.686763E25
 Global constant, Loschmidt constant [m^-3]. More...
 
const Numeric EARTH_GRAV_CONST = 3.98601E14
 Global constant, Earth gravitational constant [m^3/s^2]. More...
 
const Numeric HZ2CM = 0.01 / SPEED_OF_LIGHT
 Global constant, converts Hz to cm-1. More...
 
Joker joker
 Define the global joker objekt. More...
 

Detailed Description

This file contains global constants.

You can use them anywhere by declaring them as in the following example:

extern const Numeric PI;

See for example the National Institute of Standards and Technology (NIST)
home page for the values of specific constants.

Author
Patrick Eriksson
Date
2000-09-14

Definition in file constants.cc.

Variable Documentation

◆ ATM2PA

const Numeric ATM2PA = 1.01325e5
extern

Global constant, converts atm to Pa.

Multiply your value in atm by this constant to get the value in Pa.

Author
Stefan Buehler
Date
2000-06-17

◆ ATOMIC_MASS_UNIT

const Numeric ATOMIC_MASS_UNIT = 1.6606E-27
extern

Atomic mass unit, 12th of a C^12_6 atom.

Author
Oliver Lemke
Date
27.09.2000

◆ AVOGADROS_NUMB

const Numeric AVOGADROS_NUMB = 6.0220450e26
extern

Global constant, the Avogadro's number [molec/kg].

Author
Patrick Eriksson
Date
08.04.2000

◆ BOLTZMAN_CONST

const Numeric BOLTZMAN_CONST = 1.380662e-23
extern

Global constant, the Boltzmann constant [J/K].

Author
Patrick Eriksson
Date
08.04.2000

◆ COSMIC_BG_TEMP

const Numeric COSMIC_BG_TEMP = 2.735
extern

Global constant, Planck temperature for cosmic background radiation [K].

Author
Patrick Eriksson
Date
08.04.2000

◆ DEG2RAD

const Numeric DEG2RAD = 0.01745329251994
extern

Global constant, conversion from degrees to radians.

Multiply your value in degrees by this constant to get the value in radians.

Author
Patrick Eriksson
Date
08.04.2000

◆ EARTH_EQUATORIAL_RADIUS

const Numeric EARTH_EQUATORIAL_RADIUS = 6.378137e6
extern

Global constant, the equatorial radius of the Earth [m], from WGS84.

Author
Axel von Engeln
Date
2003-07-23

◆ EARTH_GRAV_CONST

const Numeric EARTH_GRAV_CONST = 3.98601E14
extern

Global constant, Earth gravitational constant [m^3/s^2].

Author
Carlos Jimenez
Date
2001-04-20

◆ EARTH_POLAR_RADIUS

const Numeric EARTH_POLAR_RADIUS = 6.3567523e6
extern

Global constant, the polar radius of the Earth [m], from WGS84.

Author
Axel von Engeln
Date
2003-07-23

◆ EARTH_RADIUS

const Numeric EARTH_RADIUS = 6.378e6
extern

Global constant, the radius of the Earth [m].

Author
Patrick Eriksson
Date
08.04.2000

◆ EULER_NUMBER

const Numeric EULER_NUMBER = 2.7182818284590452
extern

Global constant, e (Euler's number)

Author
Thomas Kuhn
Date
08.11.2001

◆ HZ2CM

const Numeric HZ2CM = 0.01 / SPEED_OF_LIGHT
extern

Global constant, converts Hz to cm-1.

Multiply your value in Hz by this constant to get the value in cm-1.

Author
Patrick Eriksson
Date
2003-09-07

◆ joker

Joker joker

Define the global joker objekt.

This is used by Matpack to specify joker ranges.

Author
Stefan Buehler
Date
2001-09-10

Definition at line 233 of file constants.cc.

◆ LOG10_EULER_NUMBER

const Numeric LOG10_EULER_NUMBER = 0.43429448190325176
extern

Global constant, log10(Euler's number)

Author
Thomas Kuhn
Date
08.11.2001

◆ LOSCHMIDT_CONST

const Numeric LOSCHMIDT_CONST = 2.686763E25
extern

Global constant, Loschmidt constant [m^-3].

Author
Axel von Engeln
Date
2000-12-19

◆ NAT_LOG_2

const Numeric NAT_LOG_2 = 0.69314718055994
extern

Global constant, ln(2)

Author
Patrick Eriksson
Date
08.04.2000

◆ NAT_LOG_TEN

const Numeric NAT_LOG_TEN = 2.3025850929940459
extern

Global constant, ln(10)

Author
Thomas Kuhn
Date
08.11.2001

◆ PI

const Numeric PI = 3.14159265358979
extern

Global constant, pi.

Author
Patrick Eriksson
Date
08.04.2000

◆ PLANCK_CONST

const Numeric PLANCK_CONST = 6.626180e-34
extern

Global constant, the Planck constant [Js].

Author
Patrick Eriksson
Date
08.04.2000

◆ PRES_STAND

const Numeric PRES_STAND = 101300.25
extern

Global constant, Standard pressure in Pa.

Author
Axel von Engeln
Date
2000-12-19

◆ RAD2DEG

const Numeric RAD2DEG = 57.29577951308232
extern

Global constant, conversion from radians to degrees.

Multiply your value in radians by this constant to get the value in degrees.

Author
Patrick Eriksson
Date
08.04.2000

◆ SPEED_OF_LIGHT

const Numeric SPEED_OF_LIGHT = 2.99792458e8
extern

Global constant, spped of light in vaccum [m/s].

Author
Patrick Eriksson
Date
08.04.2000

◆ SQRT_NAT_LOG_2

const Numeric SQRT_NAT_LOG_2 = 0.832554611
extern

Global constant, sqrt(ln(2))

Author
Axel von Engeln
Date
25.09.2000

◆ SUN_TEMP

const Numeric SUN_TEMP = 6000.0
extern

Global constant, Planck temperature for solar radiation [K].

Author
Patrick Eriksson
Date
08.04.2000

◆ TEMP_0_C

const Numeric TEMP_0_C = 273.15
extern

Global constant, Temperature in Celsius of 0 Kelvin.

Author
Axel von Engeln
Date
2000-12-19

◆ TORR2PA

const Numeric TORR2PA = 133.3227
extern

Global constant, converts torr to Pa.

Multiply your value in torr by this constant to get the value in Pa.

Author
Axel von Engeln
Date
2000-10-31