[Seisunix] How to creat a wedge spike model?
WKurt
I am a new user to SU, does anyone know how to creat a wedge spike model in SU? I need to use it as a model reflectivity profile.
Thanks a lot!
Wietze Eckhardt
Greetings,
Wietze
For example:
>sufind syn
or
> suhelp | grep susyn
you need to enter a few returns and then you get:
> suhelp | grep susyn
suaddevent suimp2d susyncz
suea2df suimp3d susynlv
sufctanismod suimpedance susynlvcw
sufdmod1 sukdsyn2d susynlvfti
sufdmod2 sunhmospike susynvxz
sufdmod2_pml sunull susynvxzcs
>
And then read the self docs by typing the program name without arguments and choose the program that best fits your problem. For instance:
> susyncz
SUSYNCZ - SYNthetic seismograms for piecewise constant V(Z) function
True amplitude (primaries only) modeling for 2.5D
susyncz > outfile [parameters]
Required parameters:
none
Optional Parameters:
ninf=4 number of interfaces (not including upper surface)
dip=5*i dips of interfaces in degrees (i=1,2,3,4)
zint=100*i z-intercepts of interfaces at x=0 (i=1,2,3,4)
v=1500+ 500*i velocities below surface & interfaces (i=0,1,2,3,4)
rho=1,1,1,1,1 densities below surface & interfaces (i=0,1,2,3,4)
nline=1 number of (identical) lines
ntr=32 number of traces
dx=10 trace interval
tdelay=0 delay in recording time after source initiation
dt=0.004 time interval
nt=128 number of time samples
Notes:
The original purpose of this code was to create some nontrivial
data for Brian Sumner's CZ suite.
The program produces zero-offset data over dipping reflectors.
In the original fortran code, some arrays had the index
interval 1:ninf, as a natural way to index over the subsurface
reflectors. This indexing was preserved in this C translation.
Consequently, some arrays in the code do not use the 0 "slot".
Example:
susyncz | sufilter | sugain tpow=1 | display_program
Trace header fields set: tracl, ns, dt, delrt, ntr, sx, gx
>
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Robert Hardy
There are several ways to create wedge models in su. Two methods I have used in the past are..
1. Use any of the modelling programs e.g. susynlv to create the wedge in a constant velocity background and then migrate it with sustolt to get the reflectivity model
2. Use suplane to create the wedge reflectivity and then convolve it with chosen wavelet e.g. ricker generated by suwaveform
Cheers
Rob
________________________________________
From: seisunix...@mailman.mines.edu [seisunix...@mailman.mines.edu] On Behalf Of WKurt [kurt_a...@hotmail.com]
Sent: 21 February 2012 13:28
To: seis...@mailman.mines.edu
Subject: [Seisunix] How to creat a wedge spike model?
Hi, everyone,
I am a new user to SU, does anyone know how to creat a wedge spike model in SU? I need to use it as a model reflectivity profile.
Thanks a lot!
Jinlong Yang
Does anybody know how to convert a binary file to video or movie file?
I can make a movie using xmovie or suxmovie to xwindow, but I don't
how to output the movie.
Thanks a lot.
Jinlong Yang
Thanks for your reply. There is still some issues. The following is my test:
#create the data junk.su
suplane | suaddnoise sn=20 >> junk.su
suplane | suaddnoise sn=15 >> junk.su
suplane | suaddnoise sn=10 >> junk.su
suplane | suaddnoise sn=5 >> junk.su
suplane | suaddnoise sn=3 >> junk.su
suplane | suaddnoise sn=2 >> junk.su
suplane | suaddnoise sn=1 >> junk.su
#plot junk.su using suxmovie
suxmovie < junk.su n2=32 title="frame=%g" loop=1 &
#convert junk.su to ps file
supsmovie < junk.su n2=32 > junk.ps
#convert junk.ps to a movie file
Here I can't find the command imagemagick and I tried the command
convert, but it is not work.
convert junk.ps junk.avi
Could you help me to find where I am wrong and how to convert the ps
file to avi?
Thanks again.
Jinlong
2012/2/21 Mike Stone <mst...@act3solutions.com>:
> Jinlong,
>
> I prefer to use psmovie or supsmovie. The colorbar settings are a little
> different so be careful.
>
> After you output it to a ps file, use imagemagick. "Convert movie.ps
> movie.avi"
>
>
>
> Alternatively you can record the output with the walk-through here:
> http://www.seismicunix.com/w/Wiki_Guide_Plotting:Making_movies
>
>
>
> Mike Stone
> 832-768-0884
> MSt...@ACT3Solutions.com
>
>
>
> 2012/2/21 Jinlong Yang <uhj...@gmail.com>
John Stockwell
http://bingweb.binghamton.edu/~jbarker/animations.html
likely you will have to install "ImageMagic" which does come as
an option on most Linux systems. You have not mentioned what your
operating system is.
If you want to convert the gif movie to an .avi format, then you
may install ffmpeg to do this.
-John
> Hi everyone,
>
> Does anybody know how to convert a binary file to video or movie file?
> I can make a movie using xmovie or suxmovie to xwindow, but I don't
> how to output the movie.
>
> Thanks a lot.
>
>
>
>
> ? 2012?2?21? ??7:28?WKurt <kurt_a...@hotmail.com> ???
>> Hi, everyone,
>>
>> I am a new user to SU, does anyone know how to creat a wedge spike model in
>> SU? I need to use it as a model reflectivity profile.
>>
>> Thanks a lot!
>>
>>
>>
>> _______________________________________________
>> seisunix mailing list
>> seis...@mailman.mines.edu
>> https://mailman.mines.edu/mailman/listinfo/seisunix
>> Unsubscribe: seisunix-u...@mailman.mines.edu
>>
>
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>
John Stockwell | jo...@dix.Mines.EDU
Center for Wave Phenomena (The Home of Seismic Un*x)
Colorado School of Mines
Golden, CO 80401 | http://www.cwp.mines.edu/cwpcodes
voice: (303) 273-3049
Our book:
Norman Bleistein, Jack K. Cohen, John W. Stockwell Jr., [2001],
Mathematics of multidimensional seismic imaging, migration, and inversion,
(Interdisciplinary Applied Mathematics, V. 13.), Springer-Verlag, New York.
Glenn Reynolds
Glenn Reynolds
