quick reminder : general equations
TRANSCRIPT
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Quick reminder : general equations
(see yesterday's presentation by F. Hourdin)
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Coriolis gravity
Sources
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Entrainment
Detrainment
LNB
LCL
Unsaturateddowndraught
Emanuel scheme
Mixed saturateddraughts
Adiabatic ascent
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Orography
PBL
Shallowconvection
ALE,oro,therm
ALP,oro,dyn
ALP
ALE
Q1
ALE
ALP
Deepconvection
DensityCurrents
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Mali, August 2004F. Guichard, L. Kergoat
Cold poolDensity currentWake
Gust front
Lifting
Convective column
Anvil
Wake
Precipitating Downdraught
Lifting
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Simulated wake propertiesHAPEX92: 21 Aug 1992 squall line case
TOGA-COARE: 22 Feb 1993 squall line case
z
T
q
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In a model column there are structures of boundary layer scale
20 km
“The Thermal Model”:Each column is split in two parts:Ascending air from the surface and subsiding air around it.
The model represents a mean plume (the thermal) and a mean cloud.
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200 km
3 km
e
d
w
Etc ...
Updraught Slow compensating subsidence
Turbulent Diffusion
Transport by the thermal plume model
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In the model, this would be (- bils)
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