Make sure the Sun executables are in a "nice" place. sioseis, lsd, sio2hp, and xloadimage are used in this example. You may have to set shell parameter DISPLAY. e.g. setenv DISPLAY your_machine:0.0 Don't forget xhost +. The Geometrics tape output is SEG-D, not SEG-Y. SEG-D is not for the faint of heart; dd'ing a SEG-D tape is not a good idea since every shot is a file. Convert the SEG-D tape to a SEG-Y disk file. The Geometrics records 24 channels, but the first use will have a four channel streamer. Only save traces 1-4 when converting to SEG-Y. e.g. sioseis << eof procs segdin diskoa prout end segdin ftr 1 ltr 4 device /dev/rmt/0bn end end diskoa opath file1.segy end end prout fno 0 lno 999999 noinc 100 ftr 1 ltr 1 end end end eof Following the AVON04 example: >lsd file1.segy 1 10 SHOT TR RP TR ID RANGE DELAY NSAMPS SI YR DAY HR MIN SEC 1 1 0 0 1 0 0 7000 1000 2003 253 16 31 34 1 2 0 0 1 0 0 7000 1000 2003 253 16 31 34 1 3 0 0 1 0 0 7000 1000 2003 253 16 31 34 1 4 0 0 1 0 0 7000 1000 2003 253 16 31 34 2 1 0 0 1 0 0 7000 1000 2003 253 16 31 44 2 2 0 0 1 0 0 7000 1000 2003 253 16 31 44 2 3 0 0 1 0 0 7000 1000 2003 253 16 31 44 2 4 0 0 1 0 0 7000 1000 2003 253 16 31 44 3 1 0 0 1 0 0 7000 1000 2003 253 16 31 54 3 2 0 0 1 0 0 7000 1000 2003 253 16 31 54 Do a QC check to make sure all 4 traces look good. e.g. sioseis << eof procs diskin plot end diskin ipath file1.segy ntodo 96 end end plot def .02 vscale 1.25 srpath sunfil.ras nsecs 7 nibs 2859 recsp yes ann sh&tr taginc 1 end end end eof xloadimage -r 90 sunfil.ras (test data plot.) All four traces look okay, so "vertically stack" them by using ntrgat 4 in diskin and adding stack in the procs. Remember that filter should be done after stack for speed. Finding the right plot "def" was hard because of the noise at the beginning of the data. Avon04 plot sioseis << eof procs diskin stack filter plot end diskin ntrgat 4 ipath file1.segy ntodo 2000 end end filter ftype 0 pass 20 150 dbdrop 48 end end agc winlen .5 end end plot vscale 1.25 srpath sunfil.ras nsecs 7 nibs 2859 ann gmtint anninc 5 trpin 200 def .02 wiggle 0 end end end eof xloadimage -r 90 sunfil.ras & A 3 trace mix does wonders for reducing the noise in the water column. Try it! (see the Avon example for other things to try). sioseis << eof procs diskin stack mix filter plot end diskin ntrgat 4 ipath file1.segy ntodo 2000 end end filter ftype 0 pass 20 150 dbdrop 48 end end mix weight 1 2 1 end end agc winlen .5 end end plot vscale 1.25 srpath sunfil.ras nsecs 7 nibs 2859 ann gmtint anninc 5 trpin 200 def .02 wiggle 0 end end end eof xloadimage -r 90 sunfil.ras & You may want to extract smaller portions of the data by using diskin parameters fgmt, lgmt, fday, lday e.g. diskin ntrgat 4 fday 253 lday 253 fgmt 1645 lgmt 1715 ipath file1.segy end end There are several programs that convert Sun rasterfiles to PostScript, though I don't like any on the Sun (suntops and ras2ps), so I use GraphicConverter on the Mac. ImageMagik might work. Some people are using sioseis' process grdout and GMT. You may want to create wallpaper on the HP plotter. You must generate a SIOSEIS plot file (plot parameter opath) and then convert it into an HP rasterfile using program sio2hp. Then lpr it. Have fun guys!Return to SIOSEIS examples. Go to the list of seismic processes. Go to SIOSEIS introduction.