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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Hello,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>I think that ‘wgrib’ will do the trick for you.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>==<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Portable Grib decoder for NCEP/NCAR Reanalysis etc.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> it slices, dices v1.7.3.1 (8-5-99) Wesley Ebisuzaki<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> usage: wgrib [grib file] [options]<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Inventory/diagnostic-output selections<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> -s/-v short/verbose inventory<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> -V diagnostic output (not inventory)<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> (none) regular inventory<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Options<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> -PDS/-PDS10 print PDS in hex/decimal<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> -GDS/-GDS10 print GDS in hex/decimal<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> -verf print forecast verification time<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> -ncep_opn/-ncep_rean default T62 NCEP grib table<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> -4yr print year using 4 digits<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Decoding GRIB selection<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> -d [record number|all] decode record number<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> -p [byte position] decode record at byte position<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> -i decode controlled by stdin (inventory list)<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> (none) no decoding<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Options<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> -text/-ieee/-grib/-bin convert to text/ieee/grib/bin (default)<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> -nh/-h output will have no headers/headers (default)<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> -H output will include PDS and GDS (-bin/-ieee only)<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> -append append to output file<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> -o [file] output file name, 'dump' is default<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>==<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Mike<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> gradsusr [mailto:gradsusr-bounces@gradsusr.org] <b>On Behalf Of </b>Stephan Steyn<br><b>Sent:</b> Tuesday, May 7, 2019 7:58 AM<br><b>To:</b> gradsusr@gradsusr.org<br><b>Subject:</b> [gradsusr] converting GRIB to .dat for FORTRAN<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-ZA>Dear GrADS users<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-ZA>As described on https://ds.data.jma.go.jp/tcc/tcc/library/MRCS_SV12/sstdata/readme_grib_e.htm I am attempting to use a GrADS script to convert a GRIB file (in the form of ERA5 gridded surface data) to a .dat file that I can read with FORTRAN (4-byte real floating point format). I already have fortran programs that can ingest this format. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-ZA>I managed to use "grib2ctl.pl" to create the .ctl file (copied below) and "gribmap" to create a .grib.idx file and successfully display the data in GrADS.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>Upon executing "run convert.gs" (copied below) within GrADS I don't receive any error messages, only to find that the .dat file was never created. I also tried to make subsets of the data with the same non-result.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-ZA>I am using GrADS Version 2.0.2 run on 64-bit Fedora in a Oracle Virtualbox on Lenovo Thinkpad (Core i7).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-ZA>I am pretty much stuck now... Please help!<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-ZA>Stephan<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-ZA>*** convert.gs ***<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>*---------------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>function main()<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>* Please edit the following line to match your computer environment:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>mydir='/home/stephan/ERA5'<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>'open ERA5_sfcvar12_197901.ctl'<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>'set lon 0.00 359.75'<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>'set lat -90.00 90.00'<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>'set time jan1979'<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>'set gxout fwrite'<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>'set fwrite 'mydir'/ERA5_sfcvar12_197901.dat'<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>'quit'<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>*----------------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-ZA>Below the content of "ERA_sfcvar12_197901.ctl": -----------------------<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>dset ^ERA5_sfcvar12_197901.grib<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>index ^ERA5_sfcvar12_197901.grib.idx<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>undef 9.999E+20<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>title ERA5_sfcvar12_197901.grib<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>* produced by grib2ctl v0.9.15<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>* command line options: ERA5_sfcvar12_197901.grib<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>dtype grib 255<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>options yrev<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>ydef 721 linear -90.000000 0.25<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>xdef 1440 linear 0.000000 0.250000<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>tdef 31 linear 12Z01jan1979 1dy<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>zdef 1 linear 1 1<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>vars 4<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>no10Usfc 0 165,1,0 ** surface 10 metre U wind component [m s**-1]<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>no10Vsfc 0 166,1,0 ** surface 10 metre V wind component [m s**-1]<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>no2Dsfc 0 168,1,0 ** surface 2 metre dewpoint temperature [K]<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>no2Tsfc 0 167,1,0 ** surface 2 metre temperature [K]<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA>ENDVARS<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-ZA><o:p> </o:p></span></p><div class=MsoNormal align=center style='text-align:center'><span lang=EN-ZA style='font-size:12.0pt;font-family:"Times New Roman","serif"'><hr size=2 width="100%" align=center></span></div><p class=MsoNormal><span lang=EN-ZA style='font-size:12.0pt;font-family:"Times New Roman","serif"'>University of the Free State: This message and its contents are subject to a disclaimer. <br>Please refer to http://www.ufs.ac.za/disclaimer for full details.<o:p></o:p></span></p></div></body></html>