User_Guide_TDSH(mining front)

Two input files needed for running this Service. The seismic events catalog and the mining front advance files, both available in the AH Episodes. Once these files are uploaded to the personal workspace, the User may load the into the TDSH (mining front) application, by clicking on the "Actions" tab and then select consecutively, "USE IN APPLICATION" and "Hazard in mining front surroundings", as shown in Figure 1.

Figure 1.

Once the service has been selected the User is requested to select options and fulfill some fields with parameter values needed for the TDSH analysis. First of all he/she needs to select the proper seismicity catalog from the workspace, by clicking on the "Change input" tab of the "Using eismic Catalog" field, shown in the red box in Figure 2. The other parameters that have to be set are (also shown in Figure 2):

Figure 2.

Select Magnitude column: The user may click on the small arrow in the respective tab in order to chose among different magnitude scales, in the cases where they are available (e.g. ML, Mw, etc).

The magnitude range (minimum and maximum magnitude assigned in the catalog) is shown in the screen (M range, Figure 3) for informative

purposes.

Mmin: The User now is requested to chose the minimum magnitude (completeness level of the catalog). This can be done in two ways. The

first is to type a single magnitude value in the empty box, possibly after he/she has performed an individual analysis (see MCE service). The

second is to graphically select the minimum magnitude from the Normal or the Cumulative histograms, which are available after clicking on

the respective tabs. In both cases there is option to alter the step of the histogram's bars and to select between linear and logarithmic Y-axis

for the plotting.

Time range: The user may further filter the selected dataset by defining the starting and ending data of the period that he/she wishes to

study. A calendar appears on the screen after clicking in the empty boxes next to "Start" and "End" fields (Figure 3). Note that this selection is

optional. If no dates are entered, the entire dataset remains for the analysis.

Time unit: There are 3 options for this parameter, which are shown after clicking on the small arrow in the box: Day, Month, Year. The time

unit will be stored and all the calculations hereinafter will be performed according to this unit.

Magnitude distribution estimation method: Four different methods are available in the IS-EPOS platform: The Unbounded Gutenberg-Richter,

the Upper-bounded Gutenberg-Richter, the unbounded non-parametric and the Upper-bounded non parametric estimations. To select one of

the aforementioned methods of analysis, the User has to click on the arrow in the respective box.

Time window step (days): In this field the User selects the time window step, i.e. the number of days between the starting dates of

subsequent datasets (see figure 4 for details).

Magnitude: Magnitude for which the TDSH parameters will be calculated.

Time window size: Size (span) of the windows containing data for the analysis (see below for details).

Method of creating windows: Two options are available at this field after clicking on the small arrow of the tab: "TIME" and "EVENTS". If

"TIME" is selected, the given value corresponds to the duration of each dataset, in days. If "EVENTS" is selected instead, the given value

corresponds to the number of events that each dataset contains (see figure 4 for details).

After selecting all the parameters needed the User may click on the run button (blue tab - figure 3), for the calculation process to be initiated.