joseki.profiles.ussa_1976.constants

Constants module.

As much as possible, constants’ names are chosen to be as close as possible to the notations used in [NNU76].

Notes

Constants’ values are evaluated in the following set of units: * length: meter * time: second * mass: kilogram * temperature: kelvin * quantity of matter: mole

Note the following derived units: * 1 Pa = 1 kg * m^-1 * s^-2 * 1 Joule = 1 kg * m^2 * s^-2

Attributes

A	Thermal diffusion coefficients [m * s^-1].
ALPHA	Thermal diffusion constants above 86 km [dimensionless].
AR_7	Argon number density at altitude Z7 [m^-3].
B	Thermal diffusion constants [dimensionless].
BETA	\(\beta\) constant in eq. 51 of [NNU76]
G0	Sea level gravity [m / s^-2].
GAMMA	Ratio of specific heat of air at constant pressure to the specific heat of
H	Geopotential altitudes of the layers' boundaries (below 86 km) [m].
HE_7	Helium number density at altitude Z7 [m^-3].
H_11	Hydrogen number density at altitude Z7 [m^-3].
K	Boltzmann constant [J * K^-1].
K_7	Eddy diffusion coefficients [m^2 * s^-1].
LAMBDA	\(\lambda\) constant in eq. 32 of [NNU76]
LK	Temperature gradients in the seven layers (below 86 km) [K * m^-1].
LK7	Temperature gradient in the 8th layer [K * m^-1].
LK9	Temperature gradient in the 10th layer [K * m^-1].
M	Molar masses of the individual species [kg * mole^-1].
M0	Sea level mean air molar mass [kg * mole^-1].
N2_7	Molecular nitrogen number density at altitude Z7 [m^-3].
NA	Avogadro number [mole^-1].
O2_7	Molecular oxygen number density at altitude Z7 [m^-3].
O_7	Atomic oxygen number density at altitude Z7 [m^-3].
P0	Pressure at sea level [Pa].
PHI	Vertical air particles flux [m^2 * s^-1].
Q1	Vertical transport constants above 86 km [m^-3].
Q2	Vertical transport constants above 86 km [m^-3].
R	Universal gas constant [J * K^-1 * mole^-1].
R0	Effective Earth radius [m].
S	Sutherland constant in eq. 51 of [NNU76] [K].
SIGMA	Mean effective collision diameter [m].
T0	Temperature at sea level [K].
T10	Temperature at altitude Z10 [K].
T11	Temperature at altitude Z11 [K].
T7	Temperature at altitude Z7 [K].
T9	Temperature at altitude Z9 [K].
TINF	Exospheric temperature [K].
U1	Vertical transport constants above 86 km [m].
U2	Vertical transport constants above 86 km [m].
W1	Vertical transport constants above 86 km [m^-3].
W2	Vertical transport constants above 86 km [m^-3].
Z10	Top altitude of the 10th layer [m].
Z12	Top altitude of the 12nd layer [m].
Z7	Top altitude of the 7th layer [m].
Z8	Top altitude of the 8th layer [m].
Z9	Top altitude of the 9th layer [m].

Module Contents

joseki.profiles.ussa_1976.constants.A

Thermal diffusion coefficients [m * s^-1].

joseki.profiles.ussa_1976.constants.ALPHA

Thermal diffusion constants above 86 km [dimensionless].

joseki.profiles.ussa_1976.constants.AR_7 = 1.3514e+18

Argon number density at altitude Z7 [m^-3].

joseki.profiles.ussa_1976.constants.B

Thermal diffusion constants [dimensionless].

joseki.profiles.ussa_1976.constants.BETA = 1458000.0

\(\beta\) constant in eq. 51 of [NNU76] [kg * m^-1 * s^-1 * K^-0.5].

joseki.profiles.ussa_1976.constants.G0 = 9.80665

Sea level gravity [m / s^-2].

joseki.profiles.ussa_1976.constants.GAMMA = 1.4

Ratio of specific heat of air at constant pressure to the specific heat of air at constant volume [dimensionless].

joseki.profiles.ussa_1976.constants.H: numpy.typing.NDArray[numpy.float64]

Geopotential altitudes of the layers’ boundaries (below 86 km) [m].

joseki.profiles.ussa_1976.constants.HE_7 = 758170000000000.0

Helium number density at altitude Z7 [m^-3].

Notes

Assumes typo at page 13.

joseki.profiles.ussa_1976.constants.H_11 = 80000000000.0

Hydrogen number density at altitude Z7 [m^-3].

joseki.profiles.ussa_1976.constants.K = 1.380622e-23

Boltzmann constant [J * K^-1].

joseki.profiles.ussa_1976.constants.K_7 = 120.0

Eddy diffusion coefficients [m^2 * s^-1].

joseki.profiles.ussa_1976.constants.LAMBDA = 1.875e-05

\(\lambda\) constant in eq. 32 of [NNU76] [m^-1].

joseki.profiles.ussa_1976.constants.LK: numpy.typing.NDArray[numpy.float64]

Temperature gradients in the seven layers (below 86 km) [K * m^-1].

joseki.profiles.ussa_1976.constants.LK7 = 0.0

Temperature gradient in the 8th layer [K * m^-1].

joseki.profiles.ussa_1976.constants.LK9 = 0.012

Temperature gradient in the 10th layer [K * m^-1].

joseki.profiles.ussa_1976.constants.M

Molar masses of the individual species [kg * mole^-1].

joseki.profiles.ussa_1976.constants.M0 = 0.028964425278793997

Sea level mean air molar mass [kg * mole^-1].

joseki.profiles.ussa_1976.constants.N2_7 = 1.129794e+20

Molecular nitrogen number density at altitude Z7 [m^-3].

joseki.profiles.ussa_1976.constants.NA = 6.022169e+23

Avogadro number [mole^-1].

joseki.profiles.ussa_1976.constants.O2_7 = 3.030898e+19

Molecular oxygen number density at altitude Z7 [m^-3].

joseki.profiles.ussa_1976.constants.O_7 = 8.6e+16

Atomic oxygen number density at altitude Z7 [m^-3].

joseki.profiles.ussa_1976.constants.P0 = 101325.0

Pressure at sea level [Pa].

joseki.profiles.ussa_1976.constants.PHI = 720000000000.0

Vertical air particles flux [m^2 * s^-1].

joseki.profiles.ussa_1976.constants.Q1

Vertical transport constants above 86 km [m^-3].

joseki.profiles.ussa_1976.constants.Q2

Vertical transport constants above 86 km [m^-3].

joseki.profiles.ussa_1976.constants.R = 8.31432

Universal gas constant [J * K^-1 * mole^-1].

joseki.profiles.ussa_1976.constants.R0 = 6356766.0

Effective Earth radius [m].

joseki.profiles.ussa_1976.constants.S = 110.4

Sutherland constant in eq. 51 of [NNU76] [K].

joseki.profiles.ussa_1976.constants.SIGMA = 3.65e-10

Mean effective collision diameter [m].

joseki.profiles.ussa_1976.constants.T0 = 288.15

Temperature at sea level [K].

joseki.profiles.ussa_1976.constants.T10 = 360.0

Temperature at altitude Z10 [K].

joseki.profiles.ussa_1976.constants.T11 = 999.2356

Temperature at altitude Z11 [K].

joseki.profiles.ussa_1976.constants.T7 = 186.8673

Temperature at altitude Z7 [K].

joseki.profiles.ussa_1976.constants.T9 = 240.0

Temperature at altitude Z9 [K].

joseki.profiles.ussa_1976.constants.TINF = 1000.0

Exospheric temperature [K].

joseki.profiles.ussa_1976.constants.U1

Vertical transport constants above 86 km [m].

joseki.profiles.ussa_1976.constants.U2

Vertical transport constants above 86 km [m].

joseki.profiles.ussa_1976.constants.W1

Vertical transport constants above 86 km [m^-3].

joseki.profiles.ussa_1976.constants.W2

Vertical transport constants above 86 km [m^-3].

joseki.profiles.ussa_1976.constants.Z10 = 120000.0

Top altitude of the 10th layer [m].

joseki.profiles.ussa_1976.constants.Z12 = 1000000.0

Top altitude of the 12nd layer [m].

joseki.profiles.ussa_1976.constants.Z7 = 86000.0

Top altitude of the 7th layer [m].

joseki.profiles.ussa_1976.constants.Z8 = 91000.0

Top altitude of the 8th layer [m].

joseki.profiles.ussa_1976.constants.Z9 = 110000.0

Top altitude of the 9th layer [m].