DATASET #2 I converted the ODEC datafile to SEG-Y before trying various processing and plotting parameters. sioseis << eof procs diskin diskoa end diskin ipath y0901_01.dat format odec end end diskoa opath data end end end eof >lsd data 1 3 SHOT TR RP TR ID RANGE DELAY NSAMPS SI YR DAY HR MIN SEC 1 1 0 0 1 0 4687 2334 60 2002 244 19 55 38 2 1 0 0 1 0 4687 2334 60 2002 244 19 55 48 3 1 0 0 1 0 4687 2334 60 2002 244 19 55 58 A plot was made with these parameters: sioseis << eof procs diskin plot end diskin fgmt 0330 lgmt 0730 fday 245 lday 245 ipath data end end filter ftype 0 pass 20 1000 dbdrop 48 end end agc winlen .1 end end plot stime 4 wiggle 0 colors gray dptr 1 ann gmtint anninc 5 nibs 2859 vscale 2.5 nsecs .5 tlines .05 .1 def .03 trpin 300 opath siofil end end end eof sio2sun siofil sunfil.ras open -a /Applications/GraphicConverter\ US/GraphicConverter.app sunfil.ras DATASET #1 These 3.5KHz. data were recorded aboard the R/V Revelle in spring 1997 by Alan Mix (OSU) and Steve Bloomer (UNB). The data were recorded in pseudo-SEG-Y format. FYI, the following quirks are removed by sioseis: 1) Byte swapped into big endian byte order (IBM, Sun, HP, SGI) 2) Trace header number of samples increased to include the 160 short word trailed ODEC writes after the 3.5 data. 3) Converts the unsigned 16 bit integers into signed reals. sioseis << eof procs diskin diskoa end diskin format odec ipath /usr/people/ftp/pub/data/y0307-02.sm.sgy end end diskoa opath 3.5khz end end prout fno 0 lno 99999 ftr 0 ltr 9999 end end end >lsd /home/vol4/3.5khz 1 5 SHOT TR RP TR ID RANGE DELAY NSAMPS SI YR DAY HR MIN SEC 401 1 0 0 1 0 5177 2414 60 1997 66 19 59 12 402 1 0 0 1 0 5176 2414 60 1997 66 19 59 22 403 1 0 0 1 0 5176 2414 60 1997 66 19 59 32 404 1 0 0 1 0 5174 2414 60 1997 66 19 59 42 405 1 0 0 1 0 5172 2414 60 1997 66 19 59 52 The plot of these data. Notice that the data are all positive numbers and are not traditional seismic voltages.Go to the list of seismic processes. Go to SIOSEIS introduction.