VADV - What does VADV stand for? The Free Dictionary
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Both the HADV and the VADV terms exhibit a pair of positive and negative maxima near the center of the mesocyclone, consistent with the effect of advection by the storm-relative winds and vertical motion.
7e-h), the CONV and HADV terms increased to an order of magnitude larger than VADV and TILT The HADV term still exhibits a positive (negative) maximum at the southwest (northeast) flank of the mesocyclone center.