Volgens deze vergelijking leidt warmteadvectie over een laag tot een verlaging van de oppervlaktedruk.
Groet,
Alwin
The physical interpretation of the pressure tendency equation is as follows:
o Term A represents the local pressure tendency
o Term B represents the vertically integrated divergence above the level of interest.
¡ Integrated divergence above the layer leads to lower pressure.
¡ Integrated convergence above the layer leads to higher pressure.
o Term C represents integrated advection of pressure.
¡ If the winds are geostrophic this term will be zero.
o Term D represents the integrated temperature advection.
¡ Advection of warm air lowers the pressure.
o Term E represents advection of mass across the layer.
¡ Upward vertical velocity leads to increased pressure, as the mass is moved above the level (since it is the mass above the level that determines the pressure in a hydrostatic atmosphere).
Groet,
Alwin
The physical interpretation of the pressure tendency equation is as follows:
o Term A represents the local pressure tendency
o Term B represents the vertically integrated divergence above the level of interest.
¡ Integrated divergence above the layer leads to lower pressure.
¡ Integrated convergence above the layer leads to higher pressure.
o Term C represents integrated advection of pressure.
¡ If the winds are geostrophic this term will be zero.
o Term D represents the integrated temperature advection.
¡ Advection of warm air lowers the pressure.
o Term E represents advection of mass across the layer.
¡ Upward vertical velocity leads to increased pressure, as the mass is moved above the level (since it is the mass above the level that determines the pressure in a hydrostatic atmosphere).
Bericht laatst bijgewerkt: 28-01-2006 10:20
