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Jimmy, The first parameter in your parameter list that created the upperair file should be pressure so that the log vertical coordinate is valid. The error message seems to indicate that PRES is not the valid coordinate for your upperair file. Steve Chiswell Unidata User Support >From: address@hidden >Organization: UCAR/Unidata >Keywords: 200511041627.jA4GRx7s005606 >Hi- >I am trying to use a home built gempak file (for which I can plot >soundings) to make a cross section in sncross. I get the error -10 for >sncross. I have tried many permutations of the variables but can't make it >work. >Am I doing something obviously wrong? >I am using gempak version 5.7.2p2 >Thanks > > GEMPAK-SNCROSS>l > CXSTNS = xww;tww;yww;zww; > SNPARM = thta > SNFILE = drop.gem > DATTIM = 030610/0500 > VCOORD = pres > PTYPE = log/.5 > YAXIS = 1000/300/100/1;1;1 > TAXIS = > LINE = 3 > BORDER = 1 > CINT = 5 > WIND = BM1 > TITLE = 1 > PANEL = 0 > DEVICE = XW > CLEAR = YES > FILTER = YES > TEXT = .75 > CURVE = 1 > CLRBAR = > CONTUR = 0 > FINT = 0 > FLINE = 10-20 > CTYPE = C > GEMPAK-SNCROSS>yaxis= > GEMPAK-SNCROSS>r > [SNCROSS -10] Error setting up graph; check invalid LOG axis. > > >-- >James Correia Jr. >Ph.D. Candidate in Agricultural Meteorology >President of the ISU Graduate Meteorology Club >Dept. of Agronomy, Iowa State University >********************************************* >Email: address@hidden >Phone: 515-294-5587 >Web: http://bruce.agron.iastate.edu/jimmyc/ >ISU GMC: http://www.stuorg.iastate.edu/gmc/ >********************************************* >"There is a difference between knowing the path and walking the path" >-"Morpheus" > >"Wisdom. Strength. Courage. Generosity. Each of us are born with one of >these. We must find the other three inside of us." >from "Into the West" > -- NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.