Seismic anisotropy dataset from Illsley-Kemp et al., G3, 2019 (10.1029/2019GC008529)

The datasets provided here are the seismic anisotropy results for the four seperate regions of New Zealand, reported and discussed in Illsley-Kemp et al., <em>Geochemistry, Geophysics, Geosystems, </em>2019 (10.1029/2019GC008529). If you use this date, please cite the following paper: Illsley-Kemp, F., Savage, M. K., Wilson, C. J. N., &amp; Bannister, S., 2019, 10.1029/2019GC008529. Mapping Stress and Structure from Subducting Slab to Magmatic Rift: Crustal Seismic Anisotropy of the North Island, New Zealand. <em>Geochemistry, Geophysics, Geosystems.</em> The data are csv files in the same format as MFAST output (http://mfast-package.geo.vuw.ac.nz), with each column corresponding to the following: 1: Result ID 2: Station code 3: Station latitude 4: Station longitude 5: Earthquake ID (after GeoNet) 6: Year 7: Julian day on which the event occurred, with decimal digits giving the fraction of the day 8: Earthquake latitude 9: Earthquake longitude 10: Earthquake-station distance (km) 11: Earthquake depth (km) 12: Earthquake magnitude 13: Back azimuthal angle 14: Initial polarisation of the shear wave in degrees 15: Error of Spol in degrees, one standard deviation 16: Start time of the selected measurement window in seconds, relative to the start of the seismogram at t = 0 17: End time of the selected measurement window in seconds, relative to the start of the seismogram at t = 0 18: Not used 19: Not used 20: Signal to noise ratio 21: Delay time (δt) between fast and slow shear wave in seconds 22: Error of δt in degrees, one standard deviation 23: Angle of the orientation of the fast shear wave (φ), in degrees from North 24: Error of φ in degrees, one standard deviation 25: Angle of incidence at the station, measured against a horizontal plane in degrees, where 0 means vertical incidence 26: Not used 27: Type of measurement. This field contains the measurement code that is used, the number of measurement window start times and the number of window end times 28: Not used 29: Not used 30: Nyquist frequency of the event in Hz 31: Evaluation of the measurement quality 32: Lower corner frequency of the bandpass filter in Hz 33: Higher corner frequency of the bandpass filter in Hz 34: Angle between the initial polarisation and the fast orientation in degrees 35: Not used 36: Not used 37: The maximum value of the eigenvalue of the corrected covariance matrix 38: The number of degrees of freedom in the measurement 39: The minimum value of the eigenvalue of the covariance matrix before it was scaled to have the 95% confidence level set to 1 40: The S-wave travel time between the earthquake and the station 41: The dominant frequency in the S wave, determined from the frequency at the maximum spectral amplitude