GFS Physics Constants Module

This module contains some of the most frequently used math and physics constants for GCM models. More...

Detailed Description

Modules
module	physcons
	This module contains some of the most frequently used math and physics constants for GCM models.

Math constants
real(kind=kind_phys), parameter	physcons::con_pi =3.1415926535897931
	pi More...
real(kind=kind_phys), parameter	physcons::con_sqrt2 =1.414214e+0
	square root of 2 More...
real(kind=kind_phys), parameter	physcons::con_sqrt3 =1.732051e+0
	quare root of 3 More...

Geophysics/Astronomy constants
real(kind=kind_phys), parameter	physcons::con_rerth =6.3712e+6
	radius of earth ( \(m\)) More...
real(kind=kind_phys), parameter	physcons::con_g =9.80665e+0
	gravity ( \(m/s^{2}\)) More...
real(kind=kind_phys), parameter	physcons::con_omega =7.2921e-5
	ang vel of earth ( \(s^{-1}\)) More...
real(kind=kind_phys), parameter	physcons::con_p0 =1.01325e5
	standard atmospheric pressure ( \(Pa\)) More...
real(kind=kind_phys), parameter	physcons::con_solr_old =1.3660e+3
	solar constant ( \(W/m^{2}\))-Liu(2002) More...
real(kind=kind_phys), parameter	physcons::con_solr =1.3608e+3
	solar constant ( \(W/m^{2}\))-nasa-sorce Tim(2008) More...

Thermodynamics constants
real(kind=kind_phys), parameter	physcons::con_rgas =8.314472
	molar gas constant ( \(J/mol/K\)) More...
real(kind=kind_phys), parameter	physcons::con_rd =2.8705e+2
	gas constant air ( \(J/kg/K\)) More...
real(kind=kind_phys), parameter	physcons::con_rv =4.6150e+2
	gas constant H2O ( \(J/kg/K\)) More...
real(kind=kind_phys), parameter	physcons::con_cp =1.0046e+3
	spec heat air at p ( \(J/kg/K\)) More...
real(kind=kind_phys), parameter	physcons::con_cv =7.1760e+2
	spec heat air at v ( \(J/kg/K\)) More...
real(kind=kind_phys), parameter	physcons::con_cvap =1.8460e+3
	spec heat H2O gas ( \(J/kg/K\)) More...
real(kind=kind_phys), parameter	physcons::con_cliq =4.1855e+3
	spec heat H2O liq ( \(J/kg/K\)) More...
real(kind=kind_phys), parameter	physcons::con_csol =2.1060e+3
	spec heat H2O ice ( \(J/kg/K\)) More...
real(kind=kind_phys), parameter	physcons::con_hvap =2.5000e+6
	lat heat H2O cond ( \(J/kg\)) More...
real(kind=kind_phys), parameter	physcons::con_hfus =3.3358e+5
	lat heat H2O fusion ( \(J/kg\)) More...
real(kind=kind_phys), parameter	physcons::con_psat =6.1078e+2
	pres at H2O 3pt ( \(Pa\)) More...
real(kind=kind_phys), parameter	physcons::con_t0c =2.7315e+2
	temp at 0C (K) More...
real(kind=kind_phys), parameter	physcons::con_ttp =2.7316e+2
	temp at H2O 3pt (K) More...
real(kind=kind_phys), parameter	physcons::con_tice =2.7120e+2
	temp freezing sea (K) More...
real(kind=kind_phys), parameter	physcons::con_jcal =4.1855E+0
	joules per calorie More...
real(kind=kind_phys), parameter	physcons::con_rhw0 =1022.0
	sea water reference density ( \(kg/m^{3}\)) More...
real(kind=kind_phys), parameter	physcons::con_epsq =1.0E-12
	min q for computing precip type More...

Secondary constants
real(kind=kind_phys), parameter	physcons::con_rocp =con_rd/con_cp
real(kind=kind_phys), parameter	physcons::con_cpor =con_cp/con_rd
real(kind=kind_phys), parameter	physcons::con_rog =con_rd/con_g
real(kind=kind_phys), parameter	physcons::con_fvirt =con_rv/con_rd-1.
real(kind=kind_phys), parameter	physcons::con_eps =con_rd/con_rv
real(kind=kind_phys), parameter	physcons::con_epsm1 =con_rd/con_rv-1.
real(kind=kind_phys), parameter	physcons::con_dldt =con_cvap-con_cliq
real(kind=kind_phys), parameter	physcons::con_xpona =-con_dldt/con_rv
real(kind=kind_phys), parameter	physcons::con_xponb =-con_dldt/con_rv+con_hvap/(con_rv*con_ttp)

Other Physics/Chemistry constants (source: 2002 CODATA)
real(kind=kind_phys), parameter	physcons::con_c =2.99792458e+8
	speed of light ( \(m/s\)) More...
real(kind=kind_phys), parameter	physcons::con_plnk =6.6260693e-34
	planck constant ( \(J/s\)) More...
real(kind=kind_phys), parameter	physcons::con_boltz =1.3806505e-23
	boltzmann constant ( \(J/K\)) More...
real(kind=kind_phys), parameter	physcons::con_sbc =5.670400e-8
	stefan-boltzmann ( \(W/m^{2}/K^{4}\)) More...
real(kind=kind_phys), parameter	physcons::con_avgd =6.0221415e23
	avogadro constant ( \(mol^{-1}\)) More...
real(kind=kind_phys), parameter	physcons::con_gasv =22413.996e-6
	vol of ideal gas at 273.15K, 101.325kPa ( \(m^{3}/mol\)) More...
real(kind=kind_phys), parameter	physcons::con_amd =28.9644
	molecular wght of dry air ( \(g/mol\)) More...
real(kind=kind_phys), parameter	physcons::con_amw =18.0154
	molecular wght of water vapor ( \(g/mol\)) More...
real(kind=kind_phys), parameter	physcons::con_amo3 =47.9982
	molecular wght of o3 ( \(g/mol\)) More...
real(kind=kind_phys), parameter	physcons::con_amco2 =44.011
	molecular wght of co2 ( \(g/mol\)) More...
real(kind=kind_phys), parameter	physcons::con_amo2 =31.9999
	molecular wght of o2 ( \(g/mol\)) More...
real(kind=kind_phys), parameter	physcons::con_amch4 =16.043
	molecular wght of ch4 ( \(g/mol\)) More...
real(kind=kind_phys), parameter	physcons::con_amn2o =44.013
	molecular wght of n2o ( \(g/mol\)) More...
real(kind=kind_phys), parameter	physcons::con_thgni =-38.15
	temperature the H.G.Nuc. ice starts More...

Miscellaneous physics related constants (For WSM6; Moorthi - Jul 2014)
real(kind=kind_phys), parameter	physcons::rlapse = 0.65e-2
	density of water (kg/m^3) More...
real(kind=kind_phys), parameter	physcons::cb2mb = 10.0
	density of water (kg/m^3) More...
real(kind=kind_phys), parameter	physcons::pa2mb = 0.01
	density of water (kg/m^3) More...
real(kind=kind_phys), parameter	physcons::rhowater = 1000.
	density of water (kg/m^3) More...
real(kind=kind_phys), parameter	physcons::rhosnow = 100.
	density of snow (kg/m^3) More...
real(kind=kind_phys), parameter	physcons::rhoair = 1.28
	density of air near surface (kg/m^3) More...