CLIMATE/EARTH 401�Geophysical Fluid Dynamics�Dynamical Meteorology
Geopotential Tendency Equation: Thickness Advection
Next: Investigate the thickness advection
Thickness Advection
Cold and warm advection�(Related to thickness advection term?)
cold
warm
Thickness advection
Two major conclusions from the quasi-geostrophic system
We see that:
Starting to understand the (3D) atmosphere
South
North
Warm
Cool
Temperature
What can you say about the wind? (northern hemisphere)
Idealized vertical cross section
Increasing the pressure gradient force
Relationship between upper troposphere and surface
divergence over low enhances surface low
//
increases vorticity
Relationship between upper troposphere and surface
vertical stretching
//
increases vorticity
Relationship between upper troposphere and surface
vorticity advection
thickness advection
Relationship between upper troposphere and surface
Note tilt with height,
indicates conversion of energy
Mid-latitude cyclone development
Mid-latitude cyclone development
Mid-latitude cyclone development
From: NOAA / Southern Regional Headquarters
Mid-latitude cyclone development
Mid-latitude cyclone development
Mid-latitude cyclone development
Mid-latitude cyclone development
End: Geopotential Tendency Equation: Thickness Advection