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QuakeManager supports reading the Canadian Format (NBCC). This file format represents acceleration data series.
NBCC file formats contains 7 header lines and an additional line to represent the number of columns This line indicates the time column.
The 7 header lines come as follows:
Line 1: represents the magnitude of all the data series below. Example: “Mag. = 6.50”
Line 2 and line 3 gives useful information about the site.
•Example of Line 2: “sitepar1 = 12.00”
•Example of Line 3: “sitepar2 = 999.00”
Line 4 represents the additional information about the site
Example of Line 4: “R = 12.00”
Line 5 represents the file we used to get the input to generate the below data
Example of Line 5: “Input Parameters file = M6wnaC1.PAR”
Line 6 represents the rupture distance of each data series. Since each data series is represented by a column then its corresponding rupture distance will be in the same column in line 6.
Example of Line 6: Fdist (km) 8.8 8.8 8.8 9.5
Line 7 represents the azimuth inclination of each data series. Since each data series is represented by a column its corresponding azimuth inclination will be in the same column in line 7.
Example of Line 7: Azimuth 64.2 64.2 64.2 226.7
The default unit for acceleration is cm/sec2.
Since this file format is known to be column format so data series should be read vertically and each data series is represented by a column. As a matter of fact, we have 5 header lines, 2 lines represent information about each of the data series and the 8th line is for the column title/counter proceeded by the word “time” to clarify that this column is for time.
Then comes the columns. The first column is for time defined by the “Time(time_unit)” and the following columns is for data series. Each column represents a data series. Data are to be read vertically. Time step is calculated by subtracting the second time data from the first one.
An example of this file is as follow:
Mag. = 6.50
sitepar1 = 12.00
sitepar2 = 999.00
R = 12.00
Input Parameters file = M6wnaC1.PAR
Fdist(km) 8.8 8.8 8.8 9.5 9.5
Azimuth 64.2 64.2 64.2 226.7 226. 194.7
Time(s) 1 2 3 4 5
0.000 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00
0.002 4.23333E-04 2.44898E-03 0.00000E+00 0.00000E+00 -2.09384E-03
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