Download - Energetics
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Energetics
1. Basic forms of energy
2. Observed energy balance (transport)
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Basic forms of energy
I=cvT –Internal Energy
=gz –Gravitational-potential
LH=Lq –Latent Energy
K=1/2(u2+v2) –Kinetic Energy
E=I++LH+K
00
00
00
00
0
0
pdzTdzc
zdpTdzc
g
dpgzTdzc
dzIdz
v
p
v
p
v
)0|( 0 pz
-Total Potential Energy (Enthalpy)
For a unit area column:
0
Tdzcp
Rd/cv2/5 )( RTp
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Energy in theAtmosphere
Internal,Potential,Latent(70.4,27.1,2.5)%
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Meridional transport of energy
]''[][]][[
]''[][]][[
]''[][]][[
])([
**
**
**
vqcvqcvqc
vzcvzcvzc
vTcvTcvTc
vLqgzTc
ppp
ppp
ppp
p
In adiabatic atmospheregdz=-cpdT,That is a compensation of the heat flux with those of potential energy
The meridional eddy transport of potential energy 0
0]cos
[][
z
R
z
f
gzvg
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(a)-unstable
case
Mechanisms ofReleasingEnergy(BaroclinicInstability)
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