ave.info                  Gives rough explanation of how the analysis results were averaged, and describes the correspondence between the numbers in the names of files stored in this folder (e.g. "1" and "2" in MSQcoh1_2e.d) and the data files.

MSQcoh1_2e.d        Magnitude-squared coherences. 1_2 means the coherences between sensors 1 and 2. The letter "e" stands for the east-west component.

MSQcoh1_2n.d        Magnitude-squared coherences. 1_2 means the coherences between sensors 1 and 2. The letter "n" stands for the north-south component.

MSQcoh1_2u.d        Magnitude-squared coherences. 1_2 means the coherences between sensors 1 and 2. The letter "u" stands for the up-down component.

NSR1_2e.d             Noise-to-signal ratios. 1_2 means that the values were calculated using the coherences between sensors 1 and 2. The letter "e" stands for the east-west component. (logarithmic mean)

NSR1_2n.d             Noise-to-signal ratios. 1_2 means that the values were calculated using the coherences between sensors 1 and 2. The letter "n" stands for the north-south component. (logarithmic mean)

NSR1_2u.d             Noise-to-signal ratios. 1_2 means that the values were calculated using the coherences between sensors 1 and 2. The letter "u" stands for the up-down component. (logarithmic mean)

PHASE1_2e.d          Phase differences. 1_2 means that the values were calculated using the cross-spectral densities between sensors 1 and 2. The letter "e" stands for the east-west component.

PHASE1_2n.d          Phase differences. 1_2 means that the values were calculated using the cross-spectral densities between sensors 1 and 2. The letter "n" stands for the north-south component.

PHASE1_2u.d          Phase differences. 1_2 means that the values were calculated using the cross-spectral densities between sensors 1 and 2. The letter "u" stands for the up-down component.

PSD_NOISE1_2e.d   Power-spectral densities of incoherent noise (electrical noise). 1_2 means that the values were calculated using the coherences between sensors 1 and 2. The letter "e" stands for the east-west component. (logarithmic mean)

PSD_NOISE1_2n.d  Power-spectral densities of incoherent noise (electrical noise). 1_2 means that the values were calculated using the coherences between sensors 1 and 2. The letter "n" stands for the north-south component. (logarithmic mean)

PSD_NOISE1_2u.d  Power-spectral densities of incoherent noise (electrical noise). 1_2 means that the values were calculated using the coherences between sensors 1 and 2. The letter "u" stands for the up-down component. (logarithmic mean)

SD1e_SD1e.d          Power-spectral densities of waveform records. 1 stands for the sensor number. The letter "e" stands for the east-west component. (logarithmic mean)

AMPRATIO1_2e.d    Ratios of the power-spectral densities of the records of sensors 1 and 2. The letter "e" stands for the east-west component. (logarithmic mean)

AMPRATIO1_2n.d    Ratios of the power-spectral densities of the records of sensors 1 and 2. The letter "n" stands for the north-south component. (logarithmic mean)

AMPRATIO1_2u.d    Ratios of the power-spectral densities of the records of sensors 1 and 2. The letter "u" stands for the up-down component. (logarithmic mean)

DIFINSTRES1_2e.d  The file name is short for Difference in instrumental response. The data from PHASE1_2e.d and AMPRATIO1_2e.d are laid out in two columns. Can be utilized to correct for differences in instrumental response characteristics. The letter "e" stands for the east-west component.

DIFINSTRES1_2n.d The file name is short for Difference in instrumental response. The data from PHASE1_2n.d and AMPRATIO1_2n.d are laid out in two columns. Can be utilized to correct for differences in instrumental response characteristics. The letter "n" stands for the north-south component.

DIFINSTRES1_2u.d The file name is short for Difference in instrumental response. The data from PHASE1_2u.d and AMPRATIO1_2u.d are laid out in two columns. Can be utilized to correct for differences in instrumental response characteristics. The letter "u" stands for the up-down component.

 

* In the above data files, the frequency, the mean of segment-by-segment analysis results and the standard deviation are laid out in the first, second and third columns, respectively. For data with a note "(logarithmic mean)" in parentheses, the frequency, the mean, the mean minus a standard deviation and the mean plus a standard deviation are laid out in the first, second, third and fourth columns, respectively.

* A phase difference is denoted in terms of the angle formed between the x-axis and a vector whose x- and y-components are given by the real part and the imaginary part, respectively, of the arithmetic mean of the cross-spectral densities between records.

 

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