SeismicUn*x Help (v. 38)

This is a help browser for the core part of the SeismicUn*x (SU) free software package developed and maintained by the Center for Wave Phenomena (CWP) at the Colorado School of Mines. The SU project is directed by John Stockwell (john@dix.mines.edu).

The SU programs are arranged below in broad catagories. Clicking on a program name pulls up the selfdoc for that item. Your web browser's Find capability is useful if you have a name fragment in mind (e.g. sort or nmo). While programs may logically apply to more than one catagory below, each program appears only once.

For the many programmers who develop new SU applications (and fix the old ones), I have added a listing of non-graphics library routines and the full SEGY header abbreviations (i.e., segy.h) used in SU. This should be considered a minimal subset of the numerical routines in SU. Many others are embedded as subroutines in main programs.

This help page is current through version 38 (2005) and thus should be considered a historical archive. However, since SU grows by accretion, almost all of the programs given here will be in the current SU release, although there may occasionally be additional parameters and functionality in later versions. Finally, there will certainly be new codes in the current release that are not found here. Enjoy.

Prof. Christopher Liner
Maurice F. Storm Endowed Chair
Department of Geosciences
University of Arkansas
chris.liner@gmail.com

My blog: http://seismosblog.blogspot.com/

Data Compression

Discrete Cosine Transform	dctcomp	dctuncomp
Packing	supack1 supack2	suunpack1 suunpack2
Wavelet Transform	wpc1comp2 wpccompress wptcomp wtcomp	wpc1uncomp2 wpcuncompress wptuncomp wtuncomp

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Editing, Sorting and Manipulation

Edit + tools	suabshw suazimuth subset suchw sucountkey suedit sugethw sukill	sunan suquantile surange sushw sutab suwind suxedit
Sort	susort susorty
Manipulate	fcat maxdiff segyhdrmod suaddnoise sucmp sudiff suflip suhtmath suinterp sumixgathers sunull suop suop2	supermute suramp surecip, recip suresamp, resamp suswapbytes sutaper sutxtaper suvcat suzero swapbytes transp

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Filtering, Transforms and Attributes

One-Dimensional filtering	suband subfilt suconv sueipofi sufilter sufrac	supef supofilt sushape sutvband suxcor
Two-Dimensional filtering	sudipfilt sufxdecon suk1k2filter	sumedian sukfilter sukfrac
Transforms and Attributes	entropy mrafxzwt suamp suattributes suenv suhilb suhrot sufft, suifft sugabor suharlan	sulog, suilog supolar suradon  sutaup sutsq sureduce suspecfk suspecfx suspeck1k2

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Gain, NMO, Stack and Standard Processes

Standard Procs	suagc sudipdivcor sudivcor sugain grm sumix sumute	sunmo supgc supws suresstat sustack sustatic sustaticrrs unglitch
Miscellaneous	suacor suttoz	suvibro suvlength
Velocity Analysis	dzdv sudivstack surelan surelanan suvel2df	suvelan suvelan_nccs suvelan_nsel suvelan_uccs suvelan_usel velpert velpertan

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Graphics

X-window ... for SU format input data   (see binary form for full options)	suxcontour suxgraph suximage suxmax	suxmovie suxpicker suxwigb
X-window ... for binary input data	sxplot xcontour xgraph ximage	xmovie xpicker xwigb
Postscript ... for SU format input data   (see binary form for full options)	supscontour supscube supscubecontour supsgraph supsimage	supsmovie supswigb supswigp
Postscript ... for binary input data	psbbox pscontour pscube pscubecontour psgraph psimage	psmovie pswigb pswigp spsplot
Utilities + misc	fftlab h2b lcmap lprop merge2 merge4 prplot psepsi psmanager psmerge pslabel	scmap su3dchart suchart supsmax xrects xepsb xepsp

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Import/Export

Import/Export

a2b b2a bhedtopar dt1tosu ftnstrip ftnunstrip recast segyclean segyhdrs segyread

segywrite setbhed suaddhead suascii suget suoldtonew supaste suput sustrip z2xyz

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Migration and Dip Moveout

Poststack migration	sugazmig sumigfd sumigffd sumiggbzo	sumigps sumigpspi sumigpsti sumigsplit sumigtk
Prestack/Poststack migration	sukdmig2d sukdmig3d	sumigtopo2d sustolt
Prestack migration	sumigprefd sumigpreffd	sumigprepspi sumigpresp
Dip Moveout	sudmofk sudmofkcw sudmotivz	sudmotx sudmovz sutihaledmo
Datuming and continuation	sudatumk2dr sudatumk2ds	sudatumfd suocext
Inversion (True amp migration)	suinvvzco suinvzco3d

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Simulation and Model Building

Simulation (aka modeling)	gbbeam normray rayt2d suaddevent suaddstatics suea2df sufctanismod sufdmod2 sufdmod2_pml sugoupillaud sugoupillaudpo suimp2d	suimp3d sukdsyn2d susyncz susynlv susynlvfti susynlvcw susynvxz susynvxzcs sutetraray triray triseis wkbj
Model Building	makevel regrid3 suintvel sustkvel sutivel suwellrf tetramod tri2uni	trimodel uni2tri unif2 unisam unisam2 velconv
Utilities	kaperture linrort smooth2 smooth3d smoothint2 sunhmospike suplane	suspike trip vel2stiff viewer3 vtlvz xy2z

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Utilities

Utilities	copyright cpall cpusec cputime ctrlstrip dirtree downfort farith filetype isatty lookpar lorenz maxints mkparfile newcase	overwrite pause precedence replace rmaxdiff striptotxt sugausstaper sumax sumean sunormalize supickamp sushift suweight t this_year	time_now todays_date updatedoc updatedocall updatehead upfort usernames varlist wallsec walltime weekday zap
Help utilities	cwpfind gendocs sudoc sufind sufind2	sugendocs suhelp suname sukeyword

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 Core Numerical and Programming Library Routines