Namespace canopy_const_mod
Namespace List > canopy_const_mod
Public Attributes
| Type | Name |
|---|---|
| real(rk), parameter | avo = 6.02214076d23Avogadro's Constant [number/mol]. |
| real(rk), parameter | beta_n = 0.35\_rkStability parameter beta for neutral conditions (dimensionless) |
| real(rk), parameter | cpd = 7.0 \* [**rdgas**](namespacecanopy__const__mod.md#variable-rdgas) / 2.0Specific heat of dry air at constant pressure [J/kg-K]. |
| real(rk), parameter | cpwvap = 4.0 \* [**rwvap**](namespacecanopy__const__mod.md#variable-rwvap)Specific heat for water vapor at constant pressure [J/kg-K]. |
| real(rk), parameter | cvd = 5.0 \* [**rdgas**](namespacecanopy__const__mod.md#variable-rdgas) / 2.0Specific heat of dry air at constant volume [J/kg-K]. |
| real(rk), parameter | cvwvap = 3.0 \* [**rwvap**](namespacecanopy__const__mod.md#variable-rwvap)Specific heat for water vapor at constant volume [J/kg-K]. |
| real(rk) | dg2m Latitude degrees to meters conversion factor [m/deg]. |
| real(rk), parameter | dlvdt = 2370.0Rate of change of latent heat of vaporization w.r.t. |
| real(rk), parameter | fillreal = -9.0e20NetCDF fill value for missing real data. |
| real(rk), parameter | grav = 9.80622\_rkMean gravitational acceleration [m/sec²]. |
| real(rk), parameter | lf0 = 3.34e5Latent heat of fusion of water at 0°C [J/kg]. |
| real(rk), parameter | lv0 = 2.501e6Latent heat of vaporization of water at 0°C [J/kg]. |
| real(rk), parameter | molvol = 22.4139695\_rkMolar volume of ideal gas at STP [L/mol] (Non-MKS units) |
| real(rk), parameter | mwair = 28.9628\_rkMean molecular weight for dry air [g/mol]. |
| real(rk), parameter | mwwat = 18.01528\_rkMean molecular weight for water vapor [g/mol]. |
| real(rk), parameter | pi = 3.14159265358979324\_rkPi (double precision: 3.14159265358979324) |
| real(rk), parameter | pi180 = [**pi**](namespacecanopy__const__mod.md#variable-pi) / 180.0\_rkPi/180 conversion factor from degrees to radians [rad/deg]. |
| real(rk), parameter | rdgas = 1.0e3 \* [**rgasuniv**](namespacecanopy__const__mod.md#variable-rgasuniv) / [**mwair**](namespacecanopy__const__mod.md#variable-mwair)Dry-air gas constant [J/kg-K]. |
| real(rk), parameter | rearth = 6371008.8\_rkRadius of Earth [m]. |
| real(rk), parameter | rgasuniv = 8.31446261815324\_rkUniversal gas constant [J/mol-K]. |
| integer, parameter | rk = SELECTED\_REAL\_KIND(15, 307)Selected real kind for double precision (15 decimal digits, 307 exponent range) |
| real(rk), parameter | rwvap = 1.0e3 \* [**rgasuniv**](namespacecanopy__const__mod.md#variable-rgasuniv) / [**mwwat**](namespacecanopy__const__mod.md#variable-mwwat)Gas constant for water vapor [J/kg-K]. |
| real(rk), parameter | siday = 86164.09\_rkLength of a sidereal day sec __ |
| real(rk), parameter | solcnst = 1373.0Solar Constant W/m² __ |
| real(rk), parameter | stdatmpa = 101325.0Standard atmosphere [Pa]. |
| real(rk), parameter | stdtemp = 273.15\_rkStandard temperature [K]. |
| real(rk), parameter | stfblz = 5.67037442[**d**](canopy__calcs_8F90.md#variable-d)-8Stefan-Boltzmann constant [W/(m² K⁴)]. |
| real(rk), parameter | tau_days = 5.0\_rkE-folding time for long-term past conditions for biogenic emissions [days]. |
| real(rk), parameter | tau_hours = 12.0\_rkE-folding time for short-term past conditions for biogenic emissions [hours]. |
| real(rk), parameter | vonk = 0.4\_rkVon Karman constant (dimensionless) |
| real(rk), parameter | vp0 = 611.29\_rkVapor pressure of water at 0°C Pa __ |
Public Attributes Documentation
variable avo
Avogadro's Constant [number/mol].
variable beta_n
Stability parameter beta for neutral conditions (dimensionless)
Source: Bonan et al. (2018) https://doi.org/10.5194/gmd-11-1467-2018
variable cpd
Specific heat of dry air at constant pressure [J/kg-K].
1004.7642148 J/kg-K. Calculated assuming dry air is classical ideal gas
variable cpwvap
Specific heat for water vapor at constant pressure [J/kg-K].
1846.0997042 J/kg-K. Calculated assuming water vapor is classical ideal gas
variable cvd
Specific heat of dry air at constant volume [J/kg-K].
717.68872485 J/kg-K. Calculated assuming dry air is classical ideal gas
variable cvwvap
Specific heat for water vapor at constant volume [J/kg-K].
1384.5747781 J/kg-K. Calculated assuming water vapor is classical ideal gas
variable dg2m
Latitude degrees to meters conversion factor [m/deg].
variable dlvdt
Rate of change of latent heat of vaporization w.r.t.
temperature [J/kg-K]
variable fillreal
NetCDF fill value for missing real data.
variable grav
Mean gravitational acceleration [m/sec²].
Mean of polar and equatorial values (Source: CRC76, pp. 14-6)
variable lf0
Latent heat of fusion of water at 0°C [J/kg].
variable lv0
Latent heat of vaporization of water at 0°C [J/kg].
Values from p. 641 of Stull (1988)
variable molvol
Molar volume of ideal gas at STP [L/mol] (Non-MKS units)
variable mwair
Mean molecular weight for dry air [g/mol].
78.06% N2, 21% O2, and 0.943% A on a mole fraction basis (Source: Hobbs, 1995, pp. 69-70)
variable mwwat
Mean molecular weight for water vapor [g/mol].
variable pi
Pi (double precision: 3.14159265358979324)
variable pi180
Pi/180 conversion factor from degrees to radians [rad/deg].
variable rdgas
Dry-air gas constant [J/kg-K].
287.07548994 J/kg-K
variable rearth
Radius of Earth [m].
Radius of sphere having same surface area as Clarke ellipsoid of 1866 WGS84 arithmetic mean radius (Source: Snyder, 1987)
variable rgasuniv
Universal gas constant [J/mol-K].
variable rk
Selected real kind for double precision (15 decimal digits, 307 exponent range)
variable rwvap
Gas constant for water vapor [J/kg-K].
461.52492604 J/kg-K
variable siday
Length of a sidereal day sec __
variable solcnst
Solar Constant W/m² __
variable stdatmpa
Standard atmosphere [Pa].
variable stdtemp
Standard temperature [K].
variable stfblz
Stefan-Boltzmann constant [W/(m² K⁴)].
variable tau_days
E-folding time for long-term past conditions for biogenic emissions [days].
variable tau_hours
E-folding time for short-term past conditions for biogenic emissions [hours].
variable vonk
Von Karman constant (dimensionless)
variable vp0
Vapor pressure of water at 0°C Pa __
The documentation for this class was generated from the following file src/canopy_const_mod.F90