Hi Doug, GEMPAK includes a program called GDCROSS which will display vertical cross sections of scalar or vector grids. The documentation for this program is online at: http://www.unidata.ucar.edu/cgi-bin/gempak/manual/programs_index?gdcross Hopefully this is what will work for the products you're trying to create. If you have any specific questions about GDCROSS or the GFUNC/GPARM scalar and vector grid functions please let me know. Michael James Unidata User Support > I'm hoping to display the vertical advection of vorticity within a > model vertical cross section via GARP/GEMPAK but can't seem to get it > to work. I can come up with a function that works fine for a 2D > horizontal map display, but haven't as yet figured out how to display > this term within the model vertical cross section software. > > Thank you for any comments/advice you can pass along. > > Regards, > > Doug Miller > -- > > Ticket Details =================== Ticket ID: AII-340643 Department: Support GEMPAK Priority: Normal Status: Open