Examples and Recipes

Interactive Stream Selection

Each tab allows interactive configurations which are valid during runtime of VORTEX.

Map tab

Selection of stations for viewing in the Overview and the Detail tab or for viewing station details at the right edge of the Map tab:

../_images/vortex-map-select.png

Figure 1: Map tab for selecting stations with station details.

Overview tab

In the Overview tab the data type, the channels and the offset mode of the viewed data as well as color scheme for the spectrograms (SSAM) can be adjusted. Make the selection from the drop-down menus or drag the markers of the color scale. Double-click on one station widget to switch to the Details tab.

../_images/vortex-overview-select.png

Figure 2: Overview tab for selecting data type, channels and offset mode. Currently selected is Amplitude (RSAM).

Details tab

In the Details tab all data to view can be selected in the selection box at the right edge of the tab. The data selection includes the defined primary and auxiliary streams as well as the camera video. Typically, primary and auxiliary streams are seismic waveforms and other data from sensors, respectively. Stations only visible in the Details tab can be added to the Overview tab by clicking on “Add to Matrix”.

../_images/vortex-station_select.png

Figure 3: Details tab for selecting the data to view.

Artificial origins

Signals can be interactively detected in the Station or the Overview tab. Create an artificial origin in VORTEX to process the signal in other interactive GUIs such as scolv scolv [3]. Make sure, the commands.target parameter is configured.

Procedure:

  1. Identify an event or another relevant signal in any of the widgets in the station tab.

  2. Use the middle mouse button to click on the signal. The artificial origin dialog allows to modify the source parameters. The initial values are the location of the sensor and the selected time.

../_images/vortex-artificial-origin.png

Figure 4: Detail tab with artificial origin.

Note

Signals can also be selected in the Overview tab: Middle-click on the signal switches to the Detail tab where the artificial origin can be created.

Interactive filtering

Interactive filtering of signals is possible in the Detail tab of VORTEX by adjusting the frequency window in the spectrograms:

  1. Drag the lower triangular marker of at the vertical frequency axis of the spectrogram to adjust the lower frequency limit

  2. Drag the upper triangular marker of at the vertical frequency axis of the spectrogram to adjust the upper frequency limit

The filter will be immediately applied to all signal of the same type.

../_images/vortex-station_filter.png

Figure 5: Detail tab with filtered waveforms.

Time window processing

Instead of processing real-time data, data can also be analyzed for specfic time windows. The configuration parameters :confval`endTime`: and bufferSize control the end and the duration of the time window, respectively. Adjust the parameters in the VORTEX module configuration or during command line call, e.g.:

vortex --endTime='2019-09-15 12:00:00' --bufferSize=3600

will load 1 hour of data ending at GMT noon time on 15 September 2019.