readme

su 的源代码库

This is the main directory devoted to illustrating normal moveout
corrections and stacking.  If you are new to SU, start by reading
"The SU User's Manual" and the README in $CWPROOT/src/demos.

To run the demo with X Windows,  type name of shell script:
Xmodel     show the model (X-windows plot)
MakeData   make the synthetic traces for the demo
Xdata      show the data (X-windows plot)
Velan      interactive velocity analysis demo to build parameter
           file necessary for Xnmo
Xnmo	   show the nmo and stack (X-windows graphics)
Xvelocity  view an image plot of the picked velocities
Clean      remove temporary files created by the demo

(Caveat:  users without . on their path must type:   ./Shell_Name )

Versions with PostScript output, type:
PSmodel    show the model (PostScript plot)
PSdata     show the data (PostScript plot)
PSnmo	   show the nmo and stack (PostScript graphics)

File to be saved:
model      necessary for the "model" portions of the demo, do not remove.

You may type:
zap xgraph	to remove all xgraph/suxgraph plots
zap ximage	to remove all ximage/suximage plots
zap xwigb	to remove all xwigb/suwigb plots

When you make your velocity picks, you are assuming that the
coefficients were computed as if the model had the constant
velocities (ft/s): 5000.0, 6000.0, 8000.0, 10000.0, 15000.0
in the layers delimited by depths (ft): 0, 1000.0, 2200.0,
3500.0, 5000.0.  However, the modeling program (susynlv)
generates the data according to a linear velocity profile,
here taken as: 5000.0 + 0.002*z.

For shell examples used with real data, see the files Velan,
Velan.nmo, and NmoStack in the
	$CWPROOT/src/su/examples subdirectory.

John Stockwell	 | [e-mail]
Center for Wave Phenomena (The Home of Seismic Un*x)
Colorado School of Mines
Golden, CO 80401 | http://www.cwp.mines.edu/cwpcodes
voice: [phone]  |    fax: [phone].