I would use sushift to delay the traces and then subtract the delay from the subsequent picks generated by sufbpickw
Regards
Rob
From: Seisunix seisunix-bounces@mailman.seismic-unix.org On Behalf Of Erdi Apatay Sent: Wednesday, 5 August, 2020 11:30 PM To: seisunix@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?