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Top Mute
by Erdi Apatay 12 Aug '24

12 Aug '24

Hi all! I have real seismic data and I want to apply top mute to this data. Actually, I can apply top mute to shot gathers one by one, but I wanted to create a script that could apply top mute to all of them, but I could not get a good result. Do I need to create a script that includes a loop to do this properly? What path should I follow? I would be happy if you could help Best Erdi P.S.: I attached a script I wrote ( I tried to do top mute only for the right upper side of the shot gathers for testing), and how they look after applying my script, and output of surange command.

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Makefile.config. file for macOS Sonoma 14.4.1
by N.Gülünay 23 Apr '24

23 Apr '24

I have a question to SU community: If anyone of you installed SU successfully on MAXOS Sonoma 14.4.1 (latest MacOS) I would appreciate if you could let me know which Makefile.config that you used. Thank you in advance. N. Gulunay

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End of seismic-unix.org list server failure
by Dominique ROUSSET 09 Feb '24

09 Feb '24

Hi, the seismic unix list server has been out of order for some days. If you receive this message, it means that the problem has been fixed. I you have tried to send a message in the last days, please send it again. Sorry for the inconvenience D. -- |Dominique Rousset LFCR UMR5150 / E2S UPPA / Dpt des géosciences| |Univ. Pau et des Pays de l'Adour BP 1155 F-64013 Pau Cedex - France| |mailto:dominique.rousset@univ-pau.fr http://lfc.univ-pau.fr| | Off: +33 559 407 423 Cell: +33 660 861 391 |

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Nankai.su and Taiwan.su data
by youssef_g77＠yahoo.com 23 Nov '23

23 Nov '23

Hello all, I was wondering if the real 2D seismic data of Nankai and Taiwan are still available online. when I run Madagascar, I get this error "Could not download "./Nshots.su" from "http://www.ahay.org/data/nankai/Nshots.su" ". I presume the link was removed. Any idea what was the problem? Thanks

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Help with suspecfx
by mohammed rafique Attar 09 Nov '23

09 Nov '23

Hello friends, Greetings. I ran this sufft command to generate but Why is sufft giving ripple and why suspecfx different from sufft (figs attached)? Please help me with this. Thanks in advance. -- -- *Mohammed Rafique*

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Velocity interpolation
by Glenn Reynolds 24 Jul '23

24 Jul '23

Given picked stacking velocities, is there an easy way to grid and visualise them? If I pick every 100th CDP, I would like to see a full velocity model for the line, in either time or depth. Cheers Glenn

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PSDM Flow
by Glenn Reynolds 22 Jul '23

22 Jul '23

Does anyone have a basic flow for PSDM? Another user has asked about a detailed interval velocity model, and has gathers that can be used. There was an exercise a few years ago where people did PSDM on a land line, which generated a velocity model. I'll post a separate question on velocity interpolation and conversion. Cheers Glenn

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Help With Residual Moveout
by Elora Afrin 19 Jul '23

19 Jul '23

To whom it may concern, Greetings! I need help with the codes for residual moveout. I have done normal moveout correction. I have rms, interval velocities and corresponding depths for some selected cdps. As far as I found from sumanual paper on internet, I need to use surelan command for residual moveout but could not find any information regarding the input parameters and other necessary concepts. I need an image which shows the variation of velocities with different colors in each layer. Please help me out. Thank you. Sincerely, Elora Afrin

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Seismic data with micro-seconds sampling interval
by nickag64759＠gmail.com 26 Jun '23

26 Jun '23

Dear Sirs, I have a seismic data sampled at micro-seconds. I load 3 files with : segyread tape=mySegy.sgy > mySegy.su Then I used: surange < mySegy.su As you can see in the attached log files, the one called box31.log contains "strange" d1 and f1 values. Please could you help me to understand why d1 and f1 are so big ? The only one significant difference is that an01 and an31 are sampled at 33 micro-seconds while box31 is at 124 micro-seconds. Thanks Giulia

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Missing X11 env
by nickag64759＠gmail.com 14 Jun '23

14 Jun '23

Hello, I am trying to install the xt package un my Ubuntu 22.4 env but the X11 env is missing. I try to install: sudo apt install libx11-dev but I do not find any X11 package installed. Who can help me ? Thanks a lot. Giulia Da: Elora Afrin <elora.afrin(a)students.tamuk.edu> Inviato: martedì 13 giugno 2023 02:03 A: David Forel <davidforel(a)yahoo.com> Cc: seisunix(a)mailman.seismic-unix.org Oggetto: [Seisunix] Re: Help with getting headerword Hello, Thank you so much for your consideration. I attached the screenshot what I got adding key1=sy. I also attached the range of my original file where sy is missing. I don’t have access to my computer right now, so I just attached the screenshot from my phone, I apologize for that. Thanks. I am looking forward to hearing from you. Sincerely, Elora Get Outlook for iOS <https://aka.ms/o0ukef> _____ From: David Forel <davidforel(a)yahoo.com <mailto:davidforel@yahoo.com> > Sent: Monday, June 12, 2023 6:47:54 PM To: Elora Afrin <elora.afrin(a)students.tamuk.edu <mailto:elora.afrin@students.tamuk.edu> > Cc: seisunix(a)mailman.seismic-unix.org <mailto:seisunix@mailman.seismic-unix.org> <seisunix(a)mailman.seismic-unix.org <mailto:seisunix@mailman.seismic-unix.org> > Subject: Re: [Seisunix] Help with getting headerword Hi Elora - It might help us to see the output of surange. David Sent from my cell phone. On Jun 12, 2023, at 4:41 PM, Elora Afrin <elora.afrin(a)students.tamuk.edu <mailto:elora.afrin@students.tamuk.edu> > wrote: Hello Everyone, Greetings. I have a su file where sy header is missing. How can I set a correcect sy values? I went through sushw and suchw and saw some basic information. I tried Key1=sy, key2=sx and key3=gx but noticed that I got gy values but gx and gy are same which is not supposed to be. I do not know the first value of gy. I request you to help me to set gy values. Thank you. Sincerely, Elora _______________________________________________ Seisunix mailing list -- seisunix(a)mailman.seismic-unix.org <mailto:seisunix@mailman.seismic-unix.org> To unsubscribe send an email to seisunix-leave(a)mailman.seismic-unix.org <mailto:seisunix-leave@mailman.seismic-unix.org>

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