[Seisunix] VSP Processing

rob at xsgeo.com rob at xsgeo.com
Thu Aug 6 07:59:35 CEST 2020

I would use sushift to delay the traces and then subtract the delay from the subsequent picks generated by sufbpickw






From: Seisunix <seisunix-bounces at mailman.seismic-unix.org> On Behalf Of Erdi Apatay
Sent: Wednesday, 5 August, 2020 11:30 PM
To: seisunix at mailman.seismic-unix.org
Subject: [Seisunix] VSP Processing


Hello All


I am trying to pick first break arrivals in Zero Offset VSP on the Crewes toolbox and another software. My problem is that I start picking from 4th trace because I cannot see the first three traces when I look at my data, which results in wrong velocities.


My data is passive zero-offset VSP data, utilizing ambient noise sources. I created this by using a modeling code.


I added one of my data and the problem's screenshot


Can I fix this on Seismic Unix? 

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