[gembud] GEMPAK Script Question

• To: gembud@xxxxxxxxxxxxxxxx
• Subject: [gembud] GEMPAK Script Question
• From: Jeffrey Krob - NOAA Federal <jeffrey.a.krob@xxxxxxxx>
• Date: Tue, 11 Feb 2020 10:57:35 -0500

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

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  • Re: [gembud] GEMPAK Script Question
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