Page History
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- Seed response calculation
- Seismogram picking tool
- Catalog Filter
- Coordinates Transformation
- Magnitude Conversion
- Signal download tool
- Waveform orderWaveform Download tool
- Time-Series tool
Description of Low-Level Services:
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After this step, the list of events appears in the screen as shown in Figure 11 and the User is requested to select an event for extracting event information and seed file. The User may also chose downloading between Seed Signal, Accelerogram Seed Signal, or All, by ticking on the respective box shown at the bottom left corner of Figure 11.Then, the output files are extracted after clicking on the RUN button (green button, bottom Figure 11). Those files are stored in a Signal Download folder, into the User's workspace and can be further used as input in several services as mentioned above.
Figure 11.
- Waveform order Download tool
This services application allows for ordering parts of continuous waveforms for specific dates and stations as processed by Seiscomp. The User needs to upload the service application from the low-level services repository to the personal workspace. The parameters that the User has to set are shown in Figure 12, indicated by the numbers next to the red boxes (for input) and green box (for output):
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preparation of the waveform is executed by Arclink-fetch. The User has to select the respective episode and time period of interest, as shown in Figure 12). For selection of the the time period the User may either set values to the 'Start' and 'End' point, or specify the 'Start' point and the duration (length) of the periods he/she wishes to
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study. After this the User selects among the channels and the stations available for each episodes and cliscs on "RUN" button. A *.seed file is soon to be created, and it can be furthered processed within other applications, such as, FOCI, Waveform Analysis or Seismogram picking tool.
Figure 12.
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Once these parameters have been set , the User may click on the RUN button (green button, bottom of Figure 11) and soon the output will be obtained and stored in the SeiscompOrder file in the workspace. The User may also access the output seed file by clicking in the file shown in the green box (indicated by number 4) of figure 12. The seed file is then operating by the waveform viewer and can be elaborated by several services (such as Spectral Analysis, Source Location etc).
Figure 12.
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Figure 13.
- Time-Series tool
This application is used to select appropriate time series from the cumulative events distribution plot. The User uploads the catalog of interest from the personal workspace (change file tab - Figure 13). Then, after clicking on "SHOW PLOT" tab, the starting and ending points of the period of interest are selected by clicking on certain points of the cumulative events curve (Figure 14). Running the application, creates a time series matlab file, which can be downloaded, plotted, or used in further processing of time series in particular by the following applications belonging to "Correlation Analysis application package (Technology-seismicity interaction):
- Autocorrelation
- Cross correlation
- Coefficient of randomness
- Priestley-Subba Rao (PSR) Test
Figure 13.
Figure 14.
Overview
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