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Dan, You are using the wrong program. SNCFIL will create an empty sounding file using a supplied station table. Your fort.7 file is not a station table, rather it is a sounding. So the input to SNCFIL is bogus. Remove your fort7.gem file, and simple run SNEDIT using: SNEFIL=fort.7 SNFILE=fort7.gem TIMSTN=200/1000 the TIMSTN parameter should be the number of times an station. If you only have 1 sounding, then you could just use TIMSTN=1/1. Steve Chiswell >From: "Dan Hawblitzel" <address@hidden> >Organization: UCAR/Unidata >Keywords: 200307251937.h6PJbTiv015718 >Institution: Texas A&M University / Department of Meteorology >Package Version: 5.6 >Operating System: Linux 6.0 >Hardware Information: Dell Xeon dual processor >Inquiry: My name is Dan Hawblitzel and I am a graduate student at Texas A&M Un > iversity. I am trying to plot dropsonde data from the recently completed BAM > EX project. I have used a program to convert the data into a report with the > following format named, for example, fort.7: > >SNPARM = PRES;HGHT;TMPC;DWPC;UWND;VWND >STID=AAA STNM= 1 TIME=030608/1700 >SLAT= 39.39 SLON= -82.75 SELV= 0 >STIM= 1700 > PRES HGHT TMPC DWPC UWND VWND >990.00 77.99 21.19 19.56 -2.63 6.83 >980.00 179.26 20.65 18.98 -2.17 7.36 >970.00 280.54 20.11 18.41 -1.71 7.88 >960.00 381.82 19.58 17.83 -1.26 8.41 >950.00 483.10 19.04 17.26 -0.80 8.94 >940.00 584.38 18.51 16.68 -0.35 9.46 >930.00 685.66 17.97 16.11 0.11 9.99 >920.00 786.94 17.43 15.53 0.57 10.52 > >I use SNCFIL to convert this data to a GEMPAK sounding file. I use the follow > ing commands: > >SNOUTF = fort7.gem >SNPRMF = snmerg.pack >STNFIL = fort.7 >MRGDAT = YES >TIMSTN = 1/0 > >This seems to work fine, except that when I run it, it reports the total numbe > r of stations as 12, or some number close to the number of lines in the data > report (when # of station should be 1). I then use the program SNLIST with t > he following commands: > >SNFILE = fort7.gem >AREA = us >DATTIM = all >SNPARM = hght;tmpc;dwpc;uwnd;vwnd >SNTDEX = >LEVELS = 900 >VCOORD = pres >OUTPUT = T >MRGDAT = YES > >but when I run SNLIST, I get the following error: > >[TI -5] There are no times in the data set. > >I get this error no matter how I modify the data or the SNCFIL/SNLIST commands > . Any help would be greatly appreciated. > >Thanks, > >Dan > > >