[seiscomp, scanloc] Install, add .gitignore

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.. _scanloc-ttt:
Dense Travel-Time Tables
========================
The default travel time tables of SeisComP for :cite:t:`locsat` provide the
times in intervals of 1 degree epicentral distance. Thus, the curvature of the
travel-time curve at closer distance is not well imaged potentially resulting in
wrong locations or missing event solutions. Therefore, the LOCSAT tables,
*iasp91_scanloc*, based on the IASP91 model with higher spacial sampling are
added to the scanloc package. The table files are located in
:file:`$SEISCOMP_ROOT/share/locsat/tables`. They may be used along with scanloc
and any other module which uses LOCSAT travel-time tables such as :cite:t:`scolv`,
:cite:t:`scautoloc`, :cite:t:`screloc` or even the locator :cite:t:`stdloc`.
.. note::
gempa may provide additional travel-time tables as a service based on custom
velocity models. `Contact <https://www.gempa.de/contact/>`_ us for any
related request.
.. _fig-ttt-scanloc:
.. figure:: ../apps/media/ttt_scanloc_P_5km.png
:align: center
:width: 18cm
Differences between P-wave travel times in the standard iasp91 tables for LOCSAT
and the iasp91_scanloc tables provided with scanloc for an event at 5 km depth.
Application in scanloc
----------------------
Configure the scanloc parameters :confval:`association.table` and
:confval:`locator.profile` with *iasp91_scanloc* for using these LOCSAT tables
in scanloc along with LOCSAT:
.. code-block:: params
# Type of travel-time tables for phase association. May be different from locator.
# Use e.g. libtau or LOCSAT.
association.tableType = LOCSAT
# Name of travel-time table used for phase association. May be different from locator
# profile.
association.table = iasp91_scanloc
# The locator type to use
locator.type = LOCSAT
# The locator profile to use
locator.profile = iasp91_scanloc
Alternatively, you may use the tables along with :cite:t:`stdloc`.
Application in other modules
----------------------------
In order to visualize the travel times or for using the tables in applications
like :cite:t:`scolv` add the tables to your global module configuration:
.. code-block:: params
ttt.LOCSAT.tables = iasp91_scanloc
LOCSAT.profiles = iasp91_scanloc
More specific parameters may exist along with your application.