[CIG-SEISMO] What is fixed in SPECFEM3D_GLOBE 4.0.4?

[Sue Kientz]

Hi Sung-Joon,

Here are the details on the bug sent in by Brian Savage. Note that now
that this bug is fixed, you do not have to do any of the suggested
workarounds mentioned below.

Bug Description: SAC and Rotated Output are incorrect.
There is a bug in the specfem3d_globe code when outputting sac binary,
sac alpha files, or rotated seismograms. The location is taken
incorrectly from the first line of the DATA/CMTSOLUTION file (PDE
solution). The event location and the rotated seismograms are incorrect
as they should be using the location specified later in the
DATA/CMTSOLUTION file.
Problems will occur if you are writing to any of the following
- SAC binary
- SAC alpha
- Rotated seismograms (SAC or ASCII text files)
If you are outputting ascii text files as North, East and Vertical the
output is fine.
If you have SAC seismograms already, you can fix them by them by setting
the correct event location from the CMTSOLUTION file and rotating within
SAC. There should be no need to recalculate seismograms. Rotated text
files are trickier to correct, but possible.

Sue Kientz

Sung-Joon Chang wrote:
> To whom it may concern:
> My name is Sung-Joon Chang and I'm working at Northwestern University
> as a postdoc.
> I got an announcement that new version of SPECFEM3D_GLOBE is released
> a few days ago, but it wasn't written what specific bugs are fixed in
> the new version.
> I'd like to figure out whether the bugs are so serious that I should
> recalculate my synthetics again with new codes. I'd appreciate if if
> you'd let me know which bugs are fixed in detail.
> It would be very useful to users if you make a release page in the web
> where improvements in the new version are explained as they do in GMT
> web site.
> Regards,
> Sung-Joon
> ==============================
> Sung-Joon Chang
>
> Postdoctoral Fellow
> Dept. of Earth and Planetary Sciences
> Northwestern University
> 1850 Campus Drive
> Evanston, IL 60208-2150
> U.S.A.
> ==============================
> ------------------------------------------------------------------------
>
> _______________________________________________
> CIG-SEISMO mailing list
> CIG-SEISMO at geodynamics.org
> http://geodynamics.org/cgi-bin/mailman/listinfo/cig-seismo
>