Calculate Q-Vector #661
Description
Calculate the Q-Vector at a level and over a layer. The equivalent of QVEC and QVCL in GEMPAK.
QVEC Q-vector at a level ( K / m / s )
QVEC ( S, V ) = [ - ( DOT ( DVDX (V), GRAD (S) ) ),
- ( DOT ( DVDY (V), GRAD (S) ) ) ]
where S can be any thermal paramenter, usually THTA.
QVCL Q-vector of a layer ( mb / m / s )
QVCL ( THTA, V ) = ( 1/( D (THTA) / DP ) ) *
[ ( DOT ( DVDX (V), GRAD (THTA) ) ),
( DOT ( DVDY (V), GRAD (THTA) ) ) ]