[CIG-SEISMO] quick questions about the software

Mon Mar 16 08:14:59 PDT 2015

Hi Bernhard and Yenan,

Thanks a lot. Very useful!

As Bernhard suggests it would be better to add an option to the Par_file 
(off by default) to save them, and if possible try not to increase the 
number of dimensions of the seismogram arrays from 3 to 6 but rather use 
a separate array so that the size remains 3 when that new option is off 
(seismogram arrays can be very big in the case of large inversion runs).

Another option would be to allocate them dynamically with a size of 3 or 
6 depending if the option is off or on, but that may be a bit more 
difficult to implement (many "if" statements in subroutines).

Please keep us informed,
Thanks,

Dimitri.

On 03/11/2015 12:59 PM, Bernhard Schuberth wrote:
> Hi Yenan, hi everybody,
>
> please find attached a tar-archive with all the routines added/changed
> in SPECFEM3D_GLOBE (an older version from around 1 year ago) to output
> rotations. All relevant parts are marked with comments labelled "BS BS".
>
> At the time, we had decided to add the rotational components to the
> array "seismograms" (so NCMP needs to be set to 6 instead of 3 at
> compile-time if those components are needed). It might be worthwhile to
> think about changing the behaviour and to include the option of
> outputting rotations (and strain) as parameter in "Par_file" so that the
> user can decide at run-time.
>
> Please let me know in case of trouble with the code.
>
> Best wishes,
>
> Bernhard
>
>
> On 09/03/15 16:57, Dimitri Komatitsch wrote:
>>
>> Hi all,
>>
>> Great, thus let us definitely commit that to the official Git version
>> of the code when the routine is ready. Please keep me informed.
>>
>> Thanks,
>> Dimitri.
>>
>> On 03/09/2015 04:27 PM, Rietbrock, Andreas wrote:
>>> Hi all,
>>>
>>> We here at Liverpool are also very interested. If you need support
>>> Yenan, please give us a shout.
>>>
>>> Andreas
>>>
>>> On 8 Mar 2015, at 18:16, Dimitri Komatitsch wrote:
>>>
>>>>
>>>> Hi Bernhard, Hi all,
>>>>
>>>> Thanks a lot, very useful!
>>>>
>>>> Yenan, once you get Bernhard's routines, if you adapt them to the
>>>> current version of SPECFEM3D please let us know and let us then commit
>>>> them to the official (Git) version of the code, this way this time
>>>> they will not be lost and will become a permanent part of the package
>>>> (many other users could be interested).
>>>>
>>>> Thanks,
>>>> Best wishes,
>>>>
>>>> Dimitri.
>>>>
>>>> On 03/06/2015 04:11 PM, Bernhard Schuberth wrote:
>>>>> Hi Martin, Yenan and Dimitri,
>>>>>
>>>>> yes, Martin is right. We had implemented the output of rotations in
>>>>> SPECFEM3D_GLOBE quite a while ago. I will try to have a look into the
>>>>> old code in the coming days and can send you the relevant parts.
>>>>>
>>>>> Best wishes,
>>>>>
>>>>> Bernhard
>>>>>
>>>>>
>>>>> On 04/03/15 11:15, Martin van Driel wrote:
>>>>>> Dear Dimitri and Yenan,
>>>>>>
>>>>>> I think Bernhard Schuberth (LMU) implemented strain and rotation
>>>>>> output into SPECDEM_GLOBE a few years ago and we used it for the
>>>>>> example in Fig.8 in this paper:
>>>>>>
>>>>>> http://link.springer.com/article/10.1007%2Fs10950-012-9296-5
>>>>>>
>>>>>> So maybe there still is a copy of that around.
>>>>>>
>>>>>> Best regards,
>>>>>> Martin
>>>>>>
>>>>>> On 04.03.2015 11:03, Dimitri Komatitsch wrote:
>>>>>>>
>>>>>>> Hi Yenan,
>>>>>>>
>>>>>>> Thanks! Is your question related to SPECFEM3D or to another package?
>>>>>>> (the mailing list is common to several packages)
>>>>>>>
>>>>>>> If so, the answer to the first question is currently no, but
>>>>>>> outputting
>>>>>>> the strain and rotations would be easy to add, we could tell you
>>>>>>> where
>>>>>>> to add that and then we could make your modification part of the
>>>>>>> official package since it could be very useful to other users.
>>>>>>>
>>>>>>> For the second question yes, there are examples in directory
>>>>>>> "EXAMPLES/fault_examples". (that part is developed by Jean Paul
>>>>>>> Ampuero's group at Caltech)
>>>>>>>
>>>>>>> Best regards,
>>>>>>> Dimitri.
>>>>>>>
>>>>>>> On 03/04/2015 05:22 AM, Yenan Cao wrote:
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> I have two general questions about the program.
>>>>>>>>
>>>>>>>> First, is the program able to output the ground deformations
>>>>>>>> (strains,
>>>>>>>> rotations) directly?
>>>>>>>>
>>>>>>>> Second, I was wondering if I can find some benchmark examples
>>>>>>>> specifically for kinematic fault simulations.
>>>>>>>>
>>>>>>>> Many thanks for your help.
>>>>>>>> Best regards,
>>>>>>>> Yenan
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> CIG-SEISMO mailing list
>>>>>>>> CIG-SEISMO at geodynamics.org <mailto:CIG-SEISMO at geodynamics.org>
>>>>>>>> http://lists.geodynamics.org/cgi-bin/mailman/listinfo/cig-seismo
>>>>>>>>
>>>>>>>
>>>>>> _______________________________________________
>>>>>> CIG-SEISMO mailing list
>>>>>> CIG-SEISMO at geodynamics.org <mailto:CIG-SEISMO at geodynamics.org>
>>>>>> http://lists.geodynamics.org/cgi-bin/mailman/listinfo/cig-seismo
>>>>>>
>>>>>> --
>>>>>> __________________________________
>>>>>>
>>>>>> Dr. Bernhard Schuberth
>>>>>> Geophysics
>>>>>> Dept. of Earth and Environmental Sciences
>>>>>> Ludwig-Maximilians-Universität München
>>>>>> Theresienstr. 41
>>>>>> 80333 München, Germany
>>>>>>
>>>>>> Phone:+49-89-2180-4201
>>>>>> E-Mail:bernhard.schuberth at geophysik.uni-muenchen.de
>>>>>> <mailto:bernhard.schuberth at geophysik.uni-muenchen.de>
>>>>>> Info: http://venus.geophysik.uni-muenchen.de/~bernhard
>>>>> _______________________________________________
>>>>> CIG-SEISMO mailing list
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>>>>> http://lists.geodynamics.org/cgi-bin/mailman/listinfo/cig-seismo
>>>>>
>>>>
>>>> --
>>>> Dimitri Komatitsch
>>>> CNRS Research Director (DR CNRS), Laboratory of Mechanics and
>>>> Acoustics,
>>>> UPR 7051, Marseille, France http://komatitsch.free.fr
>>>> _______________________________________________
>>>> CIG-SEISMO mailing list
>>>> CIG-SEISMO at geodynamics.org <mailto:CIG-SEISMO at geodynamics.org>
>>>> http://lists.geodynamics.org/cgi-bin/mailman/listinfo/cig-seismo
>>>
>>> Andreas Rietbrock
>>> Professor of Seismology
>>> Head of Department of
>>> Earth, Ocean and Ecological Sciences
>>> University of Liverpool
>>> Liverpool
>>> L693GP
>>> UK
>>> tel.: +44 151 7945181
>>> email: a.rietbrock at liverpool.ac.uk <mailto:a.rietbrock at liverpool.ac.uk>
>>>
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> CIG-SEISMO mailing list
>>> CIG-SEISMO at geodynamics.org
>>> http://lists.geodynamics.org/cgi-bin/mailman/listinfo/cig-seismo
>>>
>>
>
>
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-- 
Dimitri Komatitsch
CNRS Research Director (DR CNRS), Laboratory of Mechanics and Acoustics,
UPR 7051, Marseille, France    http://komatitsch.free.fr