Full Quasigeostrophic Height (Pressure) Tendency Equation

Height (or Pressure) Change at Given Level (say, near the surface, 925 mb)

Proportional To

Vorticity Advection at that Level

and/or

Temperature Advection*

*(Really, differential temperature advection centered at the level)

and/or

Sensible Temperature Change

*(Really, differential temperature change centered at the level)

and/or

Friction

 

 

Term A

 

Term B

 

Term C

 

Term D

 

 

 

 

 

 

 

 

 

 

Pressure
Development

 

Dynamic Pressure Systems
(Terms A and B)

 

Thermal Pressure Systems

 

October 18, 2004 -- 18 hr Prognosis -- Vertical Motion at 850 mb -- Cape Mendocino CA

Term A Julio

Term B Kathryn

Term C Justin

Term D Group

October 11, 2004

 1.  Case 1

 

Time 1 Time 2 Time 3
Term A Term A Term A
Term B Term B Term B
Term C Term C Term C
Term D Term D Term D

Net Development Over 24 h?

 

2.  Case 2

Time 1 Time 2 Time 3
Term A Term A Term A
Term B Term B Term B
Term C Term C Term C
Term D Term D Term D

Net Development Over 24 h?