earthkit.meteo.constants

Attributes

`Lv`	Latent heat of vapourisation [\(J kg^{-1}\)].
`R`	Universal gas constant [\(J K^{-1} mol^{-1}\)].
`R_earth`	Average radius of the Earth [\(m\)]. See [IFS-CY47R3-PhysicalProcesses]
`Rd`	Gas constant for dry air [\(J kg^{-1} K^{-1}\)].
`Rv`	Gas constant for water vapour [\(J kg^{-1} K^{-1}\)].
`T0`	Triple point of water [K].
`c_pd`	Specific heat of dry air on constant pressure [\(J kg^{-1} K^{-1}\)].
`c_pv`	Specific heat of water vapour on constant pressure [\(J kg^{-1} K^{-1}\)].
`degree`	Factor for converting radians to degrees.
`epsilon`	Epsilon coefficient used in humidity formulas \(\epsilon = \frac{R_{d}}{R_{v}}\).
`g`	Gravitational acceleration on the surface of the Earth [\(m s^{-2}\)].
`kappa`	Kappa coefficient used in adiabatic equations \(\kappa = \frac{R_{d}}{C_{pd}}\).
`omega`	Rotation rate of the Earth [\(s^{-1}\)].
`p0`	Reference pressure used in potential temperature calculations [Pa].
`radian`	Factor for converting degrees to radians.
`sideral_day`	Length of the sideral day [\(s\)].
`sideral_year`	Length of the sideral year [\(s\)].
`solar_day`	Length of the solar day [\(s\)].

earthkit.meteo.constants.Lv = 2500800.0: Latent heat of vapourisation [\(J kg^{-1}\)].

earthkit.meteo.constants.R = 8.31451: Universal gas constant [\(J K^{-1} mol^{-1}\)]. See [IFS-CY47R3-PhysicalProcesses] (Chapter 12).

earthkit.meteo.constants.R_earth = 6371229: Average radius of the Earth [\(m\)]. See [IFS-CY47R3-PhysicalProcesses] (Chapter 12).

earthkit.meteo.constants.Rd = 287.0597: Gas constant for dry air [\(J kg^{-1} K^{-1}\)]. See [IFS-CY47R3-PhysicalProcesses] (Chapter 12).

earthkit.meteo.constants.Rv = 461.51: Gas constant for water vapour [\(J kg^{-1} K^{-1}\)]. See [IFS-CY47R3-PhysicalProcesses] (Chapter 12).

earthkit.meteo.constants.c_pd = 1004.79: Specific heat of dry air on constant pressure [\(J kg^{-1} K^{-1}\)]. See [IFS-CY47R3-PhysicalProcesses] (Chapter 12).

earthkit.meteo.constants.c_pv = 1846.1: Specific heat of water vapour on constant pressure [\(J kg^{-1} K^{-1}\)]. See [IFS-CY47R3-PhysicalProcesses] (Chapter 12).

earthkit.meteo.constants.epsilon = 0.621981: Epsilon coefficient used in humidity formulas \(\epsilon = \frac{R_{d}}{R_{v}}\).

earthkit.meteo.constants.g = 9.80665: Gravitational acceleration on the surface of the Earth [\(m s^{-2}\)]. See [IFS-CY47R3-PhysicalProcesses] (Chapter 12).

earthkit.meteo.constants.kappa = 0.285691: Kappa coefficient used in adiabatic equations \(\kappa = \frac{R_{d}}{C_{pd}}\).

earthkit.meteo.constants.omega: Rotation rate of the Earth [\(s^{-1}\)]. Defined as \(\frac{2\pi}{sideral\_day}\).

earthkit.meteo.constants.p0 = 100000.0: Reference pressure used in potential temperature calculations [Pa].

earthkit.meteo.constants.sideral_day: Length of the sideral day [\(s\)]. Defined as \(\frac{solar\_day}{1 + \frac{solar\_day}{sideral\_year}}\).

earthkit.meteo.constants.sideral_year: Length of the sideral year [\(s\)]. Defined as \(\frac{2\pi\times 365.25\times solar\_day}{6.283076}\).

earthkit.meteo.constants.solar_day = 86400: Length of the solar day [\(s\)].