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Lodovica, This is the same format of the files I tested under the CDAS directory on LDEO. When you downloaded the dcreanal.c file to your $NAWIPS/unidata/ldmbridge/dcreanal directory, did you rebuild dcreanal with: cd $NAWIPS/unidata/ldmbridge/dcreanal make clean make all make install make clean Did the compiliation issue any errors? Is your $GEMEXE/dcreanal updated? Steve Chiswell Unidata User Support netcdf u_i { dimensions: Y = 73 ; X = 144 ; T = 9 ; P = 17 ; variables: float Y(Y) ; Y:long_name = "Latitude" ; Y:gridtype = 0 ; Y:units = "degree_north" ; float X(X) ; X:long_name = "Longitude" ; X:gridtype = 1 ; X:units = "degree_east" ; int T(T) ; T:long_name = "Time" ; T:defaultvalue = 19435 ; T:calendar = "standard" ; T:gridtype = 0 ; T:units = "days since 1948-01-01" ; int P(P) ; P:long_name = "Pressure" ; P:gridtype = 0 ; P:units = "mb" ; float u(T, P, Y, X) ; u:scale_max = 150.8f ; u:center = "US Weather Service - National Met. Center" ; u:subcenter = "NCEP Reanalysis Project" ; u:gribleveltype = 100 ; u:units = "m/s" ; u:calendar = "standard" ; u:grib_name = "UGRD" ; u:gribparam = 33 ; u:long_name = "zonal wind" ; u:PTVersion = 2 ; u:PDS_TimeRange = 113 ; u:scale_min = -104.7f ; u:GRIBgridcode = 2 ; u:process = "62 wave triangular, 28 layer Spectral model from \"Medium Ran ge Forecast\" run" ; u:missing_value = 9.999e+20f ; u:Compression.compressiontype = "null" ; } >From: Lodovica Illari <address@hidden> >Organization: UCAR/Unidata >Keywords: 200103222209.f2MM9cL27954 >Hi Steve, > >Thanks for your update version of dcreanal. > >We tried the Intrisic pressure files from LDEO, but still dcreanal did >not work. > >Could you tell us more specifically where these "Intrisic" NetCDF files >are located on the LDEO server? > >Thanks again > > >