All,
GEMPAK 'newbie' here - came across a script which is passed to the DG_GRIDN
routine as the following:
custar =
'mul(acos(quo(mul(mag(vasv(vecr(urel,0),geo)),quo(urel,mag(vecr(urel,0)))),urel)),RTD)'
Question; concerning the 'vecr(urel,0)' portion, I understand this is a
call to the DV_VECR (S1, S2) routine to create a vector from 2 scalars.
However, with the second argument being a '0', is this only returning the
'U' portion of the U/V wind vector or is something else going on here?
Thanks in advance,
Jeff Krob
NOAA/NESDIS
