.. _technical-web:

Technical web validation
========================

Tree structure of technical validation
--------------------------------------

.. _Tech-structure:
.. figure:: images/Tech_Tree_Structure.png
   :scale: 70%
   
   Technical validation tree structure

The technical validation is structured as shown in figure :numref:`Tech-structure`. There is only one level of station map and data availability pages, but for instrument response, the navigativon will go through the Instrument Response (IR) page, followed by IR by Channel or IR by Station node pages.  The IR by Station node page allows an auditor to access all IR by station images (for *m* stations, there will be *m* image pages,
each with the IR of all channels on that station). An auditor starts with an IR image for the fisrt station, evaluate this image and then go to the next one, until all *m* stations have been evaluated. IR by Channel loops through all unique channel names (BH1, SH1, DDH, ...), with each page displaying the IR
for all channels with the same name.
   
Example of technical validation pages
-------------------------------------

.. _mainTech:

Main page
^^^^^^^^^

.. figure:: images/Screenshot_TechMain.png
   :scale: 50%

   Main page of technical validation

The technical main page shows the three categories of images to be validated, with the state of work progress in the right side of each category. If you click on **Station Map** button, you will move to the station map page (:numref:`StamapImage`), and if you click on **Data availability** button, you will go to the data availability page (:numref:`DtAvImage`). If you click on click on the **Instrument Responses** button, you will move to the Instrument Response Categories page (:numref:`IRCatFigure`). The **summary** button sends you to the :ref:`Summary`.

Instrument Response Categories page
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

.. _IRCatFigure:
.. figure:: images/Screenshot_IRCategories.png
   :scale: 50%

   Page of Instrument Response Categories
   
Click on the **By Station** button to start the :ref:`IRStFigure`, and click on the **By Channel** button to start the :ref:`IRChFigure`.

Instrumet Response by station page
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

.. _IRStFigure:
.. figure:: images/Screenshot_IRBySt.png
   :scale: 50%

   Instrument Response by Station

This page allows an auditor to visit IR by station pages: in the figure :numref:`IRStFigure` there are 5 stations, named *LSVCC, LSVEC, LSVNC, LSVSC* and *LSVWC*. This auditor opens an IR by station image page, by clicking on one of **station name** buttons. For example, if he/she click on the **LSVCC** button, a page with the IR plot for the station *LSVCC* will be displayed (figure :numref:`IRStPlotFigure`).

.. _IRStPlotFigure:
.. figure:: images/Screenshot_IR_St_2.png
   :scale: 50%

   IR plot by Station
   
   
See section :ref:`ImagePage` for more information on how to validate and move from one page to another.

Instrument Response by Channel page
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

.. _IRChFigure:
.. figure:: images/Screenshot_IRByCh.png
   :scale: 50%

   Instrument Response by Channel

There is one button for each unique channel name in the dataset: for example, figure Fig. 5.2.6 shows 7
unique channels (BHZ, BH1, BH2, BDH, SH1, SH2, SH3).
There is one button for each unique channel name in the dataset: for example, figure :numref:`IRChFigure` shows 7 unique channels (*BHZ, BH1, BH2, BDH, SH1, SH2, SH3*). By clicking on the **SH2 channel** button, the image page for the instrument response for all *SH2* channels (figure :numref:`IRChPlotFigure`) appears. As is often (but not
always) the case, all of the stations have the same response, because they all use the same instrument
(sensor+amplifier+digitizer) for this channel name.

.. _IRChPlotFigure:
.. figure:: images/Screenshot_IR_Ch.png
   :scale: 50%

   IR plot by Channel