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[GEMPAK #JBO-562759]: Plotting ocean currents

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  • Subject: [GEMPAK #JBO-562759]: Plotting ocean currents
  • Date: Thu, 20 Aug 2015 10:57:05 -0600
> Hello,
> 
> I am attempting to plot ocean current forecasts in Gempak.  The data I have
> is from NOAA's Ocean Forecast, in grib2 format.  After converting to gem
> format, I now have data containing variable URELC and VRELC (U relative
> ocean current and V relative ocean current).  Is there a simple way that I
> can create streamlines from this data?  The WND function doesn't seem to
> recognize the variables URELC and VRELC?  I can do the vector algebra, but
> I was hoping there was something easier.  Thanks!

Hi Andy,

I was told that you can use VECR(URELC,VRELC) for GVECT in GDSTREAM.

From http://www.unidata.ucar.edu/software/gempak/man/parm/apxB.html

VECR  Create a vector grid from two grid relative scalar components
      VECR ( S1, S2 ) = [ S1, S2 ]

-Michael

Ticket Details
===================
Ticket ID: JBO-562759
Department: Support GEMPAK
Priority: Normal
Status: Open