Dominique:

Running Demo3 clearly shows surface Rayleigh waves on the vertical component for a P-wave source with a depth of sz=20.

Regards,

Jim Gaiser

From: Jggc <kjgaiser@gmail.com>
Date: Friday, January 24, 2020 at 10:12 AM
To: Dominique ROUSSET <dominique.rousset@univ-pau.fr>
Cc: Seismic Unix <Seisunix@mailman.seismic-unix.org>
Subject: Re: [Seisunix] Surface wave modeling in seismic unix

All:

A slight correction to the directory where I found my FD demos is “cwp/src/demos/Synthetic/Finite_Difference/Suea2df”. Presumably these demos show elastic anisotropic 2D models and the finite-difference synthetics.

Regards,

Jim Gaiser

From: Jggc <kjgaiser@gmail.com>
Date: Friday, January 24, 2020 at 9:54 AM
To: Dominique ROUSSET <dominique.rousset@univ-pau.fr>
Cc: Seismic Unix <Seisunix@mailman.seismic-unix.org>
Subject: Re: [Seisunix] Surface wave modeling in seismic unix

Hello Dominique:

Hmm, that’s odd. Of the few Demos I looked at last night, the models were anisotropic and I could see the surface waves on the images. I haven’t had time to dig into the scripts that generated these Demos so I can’t give you more details.

Best regards,

Jim Gaiser

From: Dominique ROUSSET <dominique.rousset@univ-pau.fr>
Date: Friday, January 24, 2020 at 6:11 AM
To: Jggc <kjgaiser@gmail.com>
Subject: Re: [Seisunix] Surface wave modeling in seismic unix

Hi,
no.

it's acoustic and you need S waves to generate surface waves...

D.

Le 24/01/2020 à 06:00, Jim Gaiser a écrit :

Hello Paul:

Do the scripts and codes in “./src/demos/Synthetic/Finite_Difference” model surface waves? I haven’t checked.

Regards,

Jim Gaiser

From: Seisunix <seisunix-bounces@mailman.seismic-unix.org> on behalf of PAUL GOYES <g.es@hotmail.es>
Date: Wednesday, January 22, 2020 at 6:32 AM
To: Seismic Unix <seisunix@mailman.seismic-unix.org>
Subject: [Seisunix] Surface wave modeling in seismic unix

Hello colleagues.

In Seismic Unix, there are packages for elastic modeling (trielas, suea2df). I would like to know if there is a way to model surface waves (or ground roll) in seismic UNIX. Or do you know some other package free-open source?

thanks very much.

Sincerely,

Paul Goyes

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--

|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 |

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