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Advection & Propagation
Vstorm = Vadv + Vprop
Advection: Movement by mean flow 850-300 hPa (Vadv=V700)
Propagation: Movement induced by new cells formation along cold pool (Vprop =-V850)
In what direction is the MCS propagating?
Item
Parameter
Parallel
Perpendicular
1
Advection vector (Vadv) orientation respectively to the outflow boundary?
2
Propagating vactor (Vprop) orientation respectively to LLJ and ouflow boundary?