mo_constants.f90 File Reference

Provides computational, mathematical, physical, and file constants. More...

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Modules
module	mo_constants
	Provides computational, mathematical, physical, and file constants.

Variables
real(dp), parameter	mo_constants::pi_dp = 3.141592653589793238462643383279502884197_dp
	Pi in double precision.
real(sp), parameter	mo_constants::pi_sp = 3.141592653589793238462643383279502884197_sp
	Pi in single precision.
real(dp), parameter	mo_constants::pio2_dp = 1.57079632679489661923132169163975144209858_dp
	Pi/2 in double precision.
real(sp), parameter	mo_constants::pio2_sp = 1.57079632679489661923132169163975144209858_sp
	Pi/2 in single precision.
real(dp), parameter	mo_constants::twopi_dp = 6.283185307179586476925286766559005768394_dp
	2*Pi in double precision
real(sp), parameter	mo_constants::twopi_sp = 6.283185307179586476925286766559005768394_sp
	2*Pi in single precision
real(dp), parameter	mo_constants::sqrt2_dp = 1.41421356237309504880168872420969807856967_dp
	Square root of 2 in double precision.
real(sp), parameter	mo_constants::sqrt2_sp = 1.41421356237309504880168872420969807856967_sp
	Square root of 2 in single precision.
real(dp), parameter	mo_constants::twothird_dp = 0.6666666666666666666666666666666666667_dp
	2/3 in double precision
real(sp), parameter	mo_constants::twothird_sp = 0.6666666666666666666666666666666666667_sp
	2/3 in single precision
real(dp), parameter	mo_constants::onethird_dp = 0.3333333333333333333333333333333333333_dp
	1/3 in double precision
real(sp), parameter	mo_constants::onethird_sp = 0.3333333333333333333333333333333333333_sp
	1/3 in single precision
real(dp), parameter	mo_constants::deg2rad_dp = PI_dp / 180._dp
	degree to radian conversion (pi/180) in double precision
real(sp), parameter	mo_constants::deg2rad_sp = PI_sp / 180._sp
	degree to radian conversion (pi/180) in double precision
real(dp), parameter	mo_constants::rad2deg_dp = 180._dp / PI_dp
	radian to conversion (180/pi) in double precision
real(sp), parameter	mo_constants::rad2deg_sp = 180._sp / PI_sp
	radian to degree conversion (180/pi) in single precision
real(sp), parameter, public	mo_constants::secday_sp = 86400.0_sp
	Seconds per day [s] in single precision.
real(dp), parameter, public	mo_constants::secday_dp = 86400.0_dp
	secday [s]
real(dp), parameter, public	mo_constants::dayhours = 24.0_dp
	hours per day
real(dp), parameter, public	mo_constants::yearmonths = 12.0_dp
	months per year
real(dp), parameter, public	mo_constants::yeardays = 365.0_dp
	days in a year
real(dp), parameter, public	mo_constants::daysecs = 86400.0_dp
	sec in a day
real(dp), parameter, public	mo_constants::hoursecs = 3600.0_dp
	seconds per hour
real(dp), parameter	mo_constants::psychro_dp = 0.0646_dp
	Psychrometric constant [kPa K^-1] in double precision.
real(sp), parameter	mo_constants::psychro_sp = 0.0646_sp
	Psychrometric constant [kPa K^-1] in sibgle precision.
real(dp), parameter	mo_constants::gravity_dp = 9.81_dp
	Gravity accelaration [m^2 s^-1] in double precision.
real(sp), parameter	mo_constants::gravity_sp = 9.81_sp
	Gravity accelaration [m^2 s^-1] in single precision.
real(dp), parameter	mo_constants::solarconst_dp = 1367._dp
	Solar constant in [J m^-2 s^-1] in double precision.
real(sp), parameter	mo_constants::solarconst_sp = 1367._sp
	Solar constant in [J m^-2 s^-1] in single precision.
real(dp), parameter	mo_constants::specheatet_dp = 2.45e06_dp
	Specific heat for vaporization of water in [J m-2 mm-1] in double precision.
real(sp), parameter	mo_constants::specheatet_sp = 2.45e06_sp
	Specific heat for vaporization of water in [J m-2 mm-1] in single precision.
real(dp), parameter	mo_constants::t0_dp = 273.15_dp
	Standard temperature [K] in double precision.
real(sp), parameter	mo_constants::t0_sp = 273.15_sp
	Standard temperature [K] in single precision.
real(dp), parameter	mo_constants::sigma_dp = 5.67e-08_dp
	Stefan-Boltzmann constant [W m^-2 K^-4] in double precision.
real(sp), parameter	mo_constants::sigma_sp = 5.67e-08_sp
	Stefan-Boltzmann constant [W m^-2 K^-4] in single precision.
real(sp), parameter	mo_constants::radiusearth_sp = 6371228._sp
	Earth radius [m] in single precision.
real(dp), parameter	mo_constants::radiusearth_dp = 6371228._dp
	Earth radius [m] in double precision.
real(dp), parameter	mo_constants::p0_dp = 101325._dp
	Standard pressure [Pa] in double precision.
real(sp), parameter	mo_constants::p0_sp = 101325._sp
	Standard pressure [Pa] in single precision.
real(dp), parameter	mo_constants::rho0_dp = 1.225_dp
	standard density [kg m^-3] in double precision
real(sp), parameter	mo_constants::rho0_sp = 1.225_sp
	standard density [kg m^-3] in single precision
real(dp), parameter	mo_constants::cp0_dp = 1005.0_dp
	specific heat capacity of air [J kg^-1 K^-1] in double precision
real(sp), parameter	mo_constants::cp0_sp = 1005.0_sp
	specific heat capacity of air [J kg^-1 K^-1] in single precision
real(dp), parameter	mo_constants::cp_w_dp = 4.19_dp
	specific heat capacity of water [J kg^-1 K^-1] in double precision
real(sp), parameter	mo_constants::cp_w_sp = 4.19_sp
	specific heat capacity of water [J kg^-1 K^-1] in single precision
real(dp), parameter	mo_constants::pi_d = 3.141592653589793238462643383279502884197_dp
	Pi in double precision.
real(sp), parameter	mo_constants::pi = 3.141592653589793238462643383279502884197_sp
	Pi in single precision.
real(dp), parameter	mo_constants::pio2_d = 1.57079632679489661923132169163975144209858_dp
	Pi/2 in double precision.
real(sp), parameter	mo_constants::pio2 = 1.57079632679489661923132169163975144209858_sp
	Pi/2 in single precision.
real(dp), parameter	mo_constants::twopi_d = 6.283185307179586476925286766559005768394_dp
	2*Pi in double precision
real(sp), parameter	mo_constants::twopi = 6.283185307179586476925286766559005768394_sp
	2*Pi in single precision
real(dp), parameter	mo_constants::sqrt2_d = 1.41421356237309504880168872420969807856967_dp
	Square root of 2 in double precision.
real(sp), parameter	mo_constants::sqrt2 = 1.41421356237309504880168872420969807856967_sp
	Square root of 2 in single precision.
real(dp), parameter	mo_constants::euler_d = 0.5772156649015328606065120900824024310422_dp
	Euler''s constant in double precision.
real(sp), parameter	mo_constants::euler = 0.5772156649015328606065120900824024310422_sp
	Euler''s constant in single precision.
integer, parameter	mo_constants::nin = input_unit
	Standard input file unit.
integer, parameter	mo_constants::nout = output_unit
	Standard output file unit.
integer, parameter	mo_constants::nerr = error_unit
	Standard error file unit.
integer, parameter	mo_constants::nnml = 100
	Standard file unit for namelist.
real(sp), parameter, public	mo_constants::nodata_sp = -9999.0_sp
	[-] global no data value
real(dp), parameter, public	mo_constants::nodata_dp = -9999.0_dp
	[-] global no data value
integer(i4), parameter, public	mo_constants::nodata_i4 = int(nodata_dp)
	[-] global no data value
integer(i8), parameter, public	mo_constants::nodata_i8 = int(nodata_dp, kind=i8)
	[-] global no data value
real(dp), parameter, public	mo_constants::eps_dp = epsilon(1.0_dp)
	epsilon(1.0) in double precision
real(sp), parameter, public	mo_constants::eps_sp = epsilon(1.0_sp)
	epsilon(1.0) in single precision

Detailed Description

Provides computational, mathematical, physical, and file constants.

Provides computational constants like epsilon, mathematical constants such as Pi, physical constants such as the Stefan-Boltzmann constant, and file units for some standard streams such as standard in.

Author

Matthias Cuntz

Date

Nov 2011

Copyright

Copyright 2005-2024, the CHS Developers, Sabine Attinger: All rights reserved. FORCES is released under the LGPLv3+ license

The UFZ (CHS) FORCES code is free software. You can redistribute it and/or modify it under the terms of the GNU General Public License as published by the free Software Foundation either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You received a copy of the GNU Lesser General Public License along with the UFZ CHS FORCES code. It can be found in the files COPYING and COPYING.LESSER provided with this software. The complete GNU license text can also be found at http://www.gnu.org/licenses/.

Definition in file mo_constants.f90.