headers

seismic software,very useful

SEGYCLEAN - zero out unassigned portion of header
SEGYHDRS - make SEG-Y ascii and binary headers for segywrite
SEGYREAD - read an SEG-Y tape
SEGYWRITE - write an SEG-Y tape
SU3DCHART - plot x-midpoints vs. y-midpoints for 3-D data
SUABSHW - replace header key word by its absolute value
SUACOR - auto-correlation
SUADDHEAD - put headers on bare traces and set the tracl and ns fields
SUADDNOISE - add noise to traces
SUAMP - output amp, phase, real or imag trace from
SUASCII - print non zero header values and data
SUBAND - apply bandpass filter with sine-squared taper
SUCHART - prepare data for x vs. y plot
SUCHW - change header word using one or two header word fields
SUDMOFK - DMO via F-K domain (log-stretch) method for common-offset gathers
SUDMOTX - DMO via T-X domain (Kirchhoff) method for common-offset gathers
SUEDIT - examine segy diskfiles and edit headers
SUENV - Complex envelope or phase time trace
SUFFT - fft real time traces to complex frequency traces
SUFLIP - flip a data set in various ways
SUFRAC -- take general (fractional) time derivative
SUGAIN - apply various types of gain to display traces
SUGETHW - sugethw writes the values of the selected key words
SUHILB - Hilbert transform
SUIFFT - fft complex frequency traces to real time traces
SUILOG -- time axis inverse log-stretch of seismic traces
SUIMP2D - generate shot records for a line scatterer
SUIMP3D - generate shot records for a point scatterer
SUINTVEL - convert stacking velocity model to interval velocity model
SUKILL - zero out traces
SULOG -- time axis log-stretch of seismic traces
SUMARK - mark selected traces
SUMAX - get trace by trace absolute maxima and global maximum magnitude
SUMIGTK - MIGration via T-K domain method for common-midpoint stacked data
SUMODEL - convert a cshot model to su traces
SUMUTE - mute above user-defined polygonal line
SUNMO - NMO for an arbitrary velocity function of time and CDP
SUNULL - create null (all zeroes) traces
SUOP - do unary arithmetic operation on segys
SUOP2 - do a binary operation on two data sets
SUPACK1 - pack segy trace data into chars
SUPACK2 - pack segy trace data into shorts
SUPASTE - paste existing SEGY headers on existing data
SUPEF - Wiener predictive error filtering
SUPLANE - create common offset data file with up to 3 planes
SUPOW - compute sum of squares on evenly spaced rectangular grid
SURAMP - Linearly taper the start and/or end of traces to zero.
SURANGE - get max and min values for non-zero header entries
SURECIP - sum opposing offsets in prepared data (see below)
SUSHAPE - Wiener shaping filter
SUSHW - set header word using trace number, mod and integer divide
SUSORT - sort on any segy header keywords
SUSPEC1 - Fourier SPECtrum (t -> w) of traces
SUSPIKE - make a small spike data set
SUSTACK - stack adjacent traces having the same key header word
SUSTKVEL - convert constant dip layer interval velocity model to the
SUSTRIP - remove the SEGY headers from the traces
SUTAB - print non zero header values and data for non-graphic terminals
SUTAPER - Taper the edge traces of a data panel to zero.
SUUNPACK1 - unpack segy trace data from chars to floats
SUUNPACK2 - unpack segy trace data from shorts to floats
SUUS - under sample traces
SUVELAN - compute stacking velocity semblance for cdp gathers
SUWIND - window and time gate traces
SUXEDIT - examine segy diskfiles and edit headers
SUZERO -- zero-out data within a time window