Dataset corresponding to the publication: Friction and slip measured at the bed of an Antarctic ice stream

• Main Author: Hudson, Thomas Samuel
• Format: Dataset
• Language: English
• Published: 2023
• Subjects: Antarctic; Hudson; Kendall; Antarc*
• Online Access: https://zenodo.org/record/7870307; https://doi.org/10.5281/zenodo.7870307

The following data is included here, which comprises the data presented in the publication: Hudson, T. S., Kufner, S., Brisbourne, A. M., Kendall, J., Smith, A. M., Arthern, R., & Alley, R. (2023). Friction and slip measured at the bed of an Antarctic ice stream. Nature Geoscience. Files included are: all_icequakes_2018to2019.csv - A catalogue of the icequakes used in the study. cluster_????.csv - csv files containing the results for each icequake, grouped by cluster (i.e. one csv file per cluster). slip_rate_movie.mp4 - A movie of slip-rate for each icequake through time. Headers for the files are as follows: --- all_icequakes_2018to2019.csv file --- origin_time - Origin time of icequake, in UTC time. Mw - Moment magnitude. Mw_err - Error in Mw. fc - Corner frequency (Hz). fc_err - Error in corner frequency. Q - Quality factor (measure of attenuation). Q_err - Error in Q. inter-event_time_s - Inter-event time between this icequake and the previous icequake (s). stress_drop - Stress-drop of icequake (Pa). stress_drop_err - error in stress-drop. lat - Latitude (decimal degrees). lon - Longitude (decimal degrees). x (km) - x grid location (km). y (km) - y grid location (km). z (km bsl) - Depth (km bsl). x_err (km) - Error in x (km). y_err (km) - Error in y (km). z_err (km) - Error in z (km). --- cluster_XXXX.csv file --- mean_Mw - Mean moment magnitude for icequake from all receivers. mean_fc - Corner frequency for icequake from all receivers (Hz). stdev_Mw - Standard deviation in Mw. stdev_fc - Standard deviation in corner-frequency. mean_Q - Mean Q for icequake from all receivers. stdev_Q - Standard deviation in Q. n_obs - Number of receivers used to calculate above means. lat - Latitude of icequake. lons - Longitude of icequake. depths - Depth of icequake (km bsl). x - x location of icequake (km). y - y location of icequake (km). zs - z location of icequake (km bsl). origin_time - Origin time of icequake (UTC time). origin_time_days - Origin time in days relative to 1st January 2019 (days). ...