The mean energetic level. theory |
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| Authors: | Radan Huth |
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| Institution: | (1) Institute of the Atmospheric Physics, Czechosl. Acad. Sci., Prague |
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| Abstract: | Summary One of the important atmospheric levels, the mean energetic level (MEL), which in a sense reflects the energetics of the whole atmosphere, is defined. Its fundamental properties are shown. In order to describe the MEL correctly a new vertical coordinate is introduced and discussed. The new coordinate,  , is defined as the ratio of height and temperature. The MEL is shown to be a level with constant value of . Some incorrect conclusions concerning the MEL, derived in the past, have been corrected.List of symbols used
c
p
specific heat of air at constant pressure
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c
v
specific heat of air at constant volume
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e
base of natural logarithms
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E
total potential energy
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f
Coriolis parameter
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g
acceleration of gravity
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i
specific internal energy
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I
internal energy
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J
enthalpy
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k
unit vector pointing upwards
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p
pressure
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Q
diabatic heating rate
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R
gas constant of the air
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t
time
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T
temperature
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v
horizontal velocity
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v
(3)
three-dimensional velocity
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w
vertical velocity in thez-system
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z
height
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temperature growth rate ( T/z)
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Pechala's vertical coordinate (z/T)
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generalized vertical velocity in the -system (d/dt)
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specific potential energy
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potential energy
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density of the air
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Ruppert function
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T(1–)–1
- ( )
S
quantity at the sea level
- ( )*
quantity at the MEL |
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| Keywords: | |
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