[MSNoise] Uncompatibility with CC saved as SAC files

[Aurélien Mordret]

Hi,

Thanks,

I fix it, it works.

SAC is nice because of the metadata coming with the data. For a correlation
file, the possibility to have the event coordinates as well as the station
coordinates in the header is very convenient because you can fill the event
coordinates with STA1 coordinates and station coordinates with STA2
coordinates. So distance, azimuth and back-azimuth are easily (and
automatically) computed.

And I developed a code to automatically compute group velocity dispersion
curves from CC, which reads the distance between the stations in the
header, without the need of other metadata file. ;)

Cheers,

Aurelien


2015-03-31 10:15 GMT-04:00 Thomas Lecocq <thomas.lecocq at seismology.be>:

> Hi Aurélien !
>
> Le 31/03/2015 16:06, Aurélien Mordret a écrit :
>
>> Hi Thomas,
>>
>>
>> Great job for the 1.3.1 MSNoise version!
>>
> Thanks!
>
>>
>> I have however encountered a problem when computing the MWCS: the function
>> only takes Miniseed files as input, which is no compatible with the fact
>> that you can save the CC as SAC files.
>>
> Aha ! Indeed... Why would one still work with SAC anyway :-)
>
> Until I provide a bugfix, hack the code at two places:
> https://github.com/ROBelgium/MSNoise/blob/master/msnoise/
> s05compute_mwcs.py#L109
> and
> https://github.com/ROBelgium/MSNoise/blob/master/msnoise/
> s05compute_mwcs.py#L115
>
> Let me know,
>
> Tom
>
>
>
>>
>> Here is the error below.
>>
>> Cheers,
>>
>> Aurelien
>>
>>
>>
>> Traceback (most recent call last):
>>    File "/usr/local/bin/msnoise", line 9, in <module>
>>      load_entry_point('msnoise==1.3.1', 'console_scripts', 'msnoise')()
>>    File "/usr/local/lib/python2.7/dist-packages/msnoise/scripts/
>> msnoise.py",
>> line 393, in run
>>      cli(obj={})
>>    File "/usr/local/lib/python2.7/dist-packages/click/core.py", line
>> 610, in
>> __call__
>>      return self.main(*args, **kwargs)
>>    File "/usr/local/lib/python2.7/dist-packages/click/core.py", line
>> 590, in
>> main
>>      rv = self.invoke(ctx)
>>    File "/usr/local/lib/python2.7/dist-packages/click/core.py", line
>> 936, in
>> invoke
>>      return _process_result(sub_ctx.command.invoke(sub_ctx))
>>    File "/usr/local/lib/python2.7/dist-packages/click/core.py", line
>> 782, in
>> invoke
>>      return ctx.invoke(self.callback, **ctx.params)
>>    File "/usr/local/lib/python2.7/dist-packages/click/core.py", line
>> 416, in
>> invoke
>>      return callback(*args, **kwargs)
>>    File "/usr/local/lib/python2.7/dist-packages/msnoise/scripts/
>> msnoise.py",
>> line 199, in compute_mwcs
>>      main()
>>    File "/usr/local/lib/python2.7/dist-packages/msnoise/
>> s05compute_mwcs.py",
>> line 110, in main
>>      ref = read(rf)[0].data
>>    File
>> "/usr/local/lib/python2.7/dist-packages/obspy/core/util/decorator.py",
>> line
>> 371, in new_func
>>      return func(*args, **kwargs)
>>    File "/usr/local/lib/python2.7/dist-packages/obspy/core/stream.py",
>> line
>> 224, in read
>>      raise IOError(2, "No such file or directory", pathname)
>> IOError: [Errno 2] No such file or directory:
>> 'STACKS/01/REF/ZZ/DK_ANGG_DK_ANGG.MSEED'
>>
>>
>>
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-- 
==========================

Postdoctoral fellow
Department of Earth, Atmospheric and Planetary Sciences
Massachusetts Institute of Technology
54-526
Cambridge, MA  02139-4307
e-mail: mordret at mit.edu
web: http://web.mit.edu/mordret/www