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The available applications in IS-EPOS are grouped into High-Level and Low-Level applications (Figure 1)Data Processing and Data Handling applications, each one containing several applications (the user may extend the applications by clicking on each category).
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Inter-event Time Distribution Analysis
- Completeness Magnitude Estimation
- Time-Dependent Seismic Hazard (in mining front surroundings)
- Time-Dependent Seismic Hazard (in mining a selected area)
- Stationary Seismic Hazard Parameters (Exceedance Probability, Maximum Credible Magnitude, Mean Return Period)
- Source Size Distribution Functions
- Source Localization/Relocalization
- Moment Tensor Inversion
- Spectral Analysis
- Fracture Network Models - Mechanical Stresses
- Stress Inversion
- Correlation Analysis (Autocorrelation, Coefficient of Randomness, Cross Correlation, Priestley-Subba Rao Test)
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Information on each selected Application is shown on the screen (short description and affiliation) and the user may upload the Application in the workspace to perform applications by clicking on the 'Add to Workspace' tab.
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Figure 5.
DOCUMENT REPOSITORY
Figure 6 5 demonstrates how the Document Repository web page looks like within the IS-EPOS platform. The "About" page contains contact information and useful links, that can be accessed by clicking on the links in blue fonts. The choices provided to the user, (tabs in red boxes, indicated by the numbers in Figure 65) are the following:
1) Leads to the IS_EPOS web platform.
2 and 3) Leads to IS_EPOS Document Repository Home page. The Search Repository tool is provided here, which supports both quick and advanced search.
3) Leads to the IS-EPOS platform User Guide
4) Leads to "Browse" page. Items can be browsed by Year, Subject, Episode, Author or Software references
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5) Leads to search repository options (quick and advanced)
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5.
TUTORIAL
Example of estimating seismic hazard parameters from a catalog.
Step 1: Select a specific Episode from the list by clicking on one of the panels (e.g. the one indicated by the red box in the figure):
Step 2: Select a data type from the list (e.g. ‘Catalog’ in this example). There are several data types available with respect to the episode and the induced seismicity technology:
Step 3: Once the user selects one data type, access is granted to data attributes, numerical values and visualization applications. For further data processing the user has to click on the "Actions" tab and then on the "ADD TO WORKSPACE" window which appears right below (red frame at the top of Figure). The data has now moved to the workspace and can be processed by the means of High and Low Level applications and Visualization tools:
Step 4: Once the selected data are uploaded in the workspace (a file has appeared in the workspace tree), the user may click on the "Actions" tab in order to use these data in one of the available applications as shown in the figure. "Source size distribution functions/ Stationary Hazard" is selected in this case:
Step 5: The application has now been selected and the user is requested to fulfill some fields with parameter values needed for the SSH analysis (red frames in the Figure). These parameters can be selected either from a list of values (e.g. "Select Magnitude column") or just typed by the user (e.g. "Start, End and Step of Magnitude". Note that "Mmin" parameter can either be typed or chosen from the histograms after clicking on "Histogram" or "Cumulative Histogram" tabs. "Change Input" can be selected for using adifferent dataset under the precondition that it is already uploaded in the workspace. Once all the parameters have been selected, the user may click on the "Run" button (green button at the bottom of the figure), for the calculation process to be initiated:
Step 6: The process soon terminates and the status changes to "Finished". The results of the process include a report with parameters values previously selected by the user and then estimated by the system (blue panel in the figure) and two charts plotting the PDF and CDF of the magnitude distribution, respectively, as functions of magnitude. The figures may be printed or downloaded by clicking on the icons indicated in the red frame of the figure. Options for figure handling are available below the charts.
Step 7: The output of the Application contains files in matlab format (.mat files shown in the blue frame of the figure). These files can be further used in a variety of actions including downloading, copying and use in other applications e.g. for estimating the Mean Return Period (red frame of the figure).
IS-EPOS is available in social media
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Overview
Content Tools