Author-submitted data information
| ID | 833 |
| Title | Rayleigh-Wave Group-Velocity Dispersion Curves and P-Wave Receiver Functions from Western Makran Ocean-Bottom Seismometers, 2019 |
| Creator | Haotian Pang |
| Subject | Rayleigh-wave group-velocity dispersion curves, P-wave receiver functions, western Makran ocean-bottom seismometers |
| Publisher | Xiukuan Zhao |
| Description | This dataset contains Rayleigh-wave group-velocity dispersion curves and P-wave receiver functions derived from seismic data recorded by six ocean-bottom seismometer (OBS) stations (OBS2, OBS4, OBS5, OBS6, OBS7, and OBS8) deployed near the western Makran deformation front from March to August 2019. The study area extends approximately from 23.6°N to 24.8°N near 61.0°E. For the P-wave receiver functions, teleseismic earthquakes with Mw ≥ 5.5 and epicentral distances of 28°–92° were selected. Receiver functions were calculated using standard preprocessing, time-domain iterative deconvolution, moveout correction to a reference ray parameter of 6.4 s/deg, and station-wise averaging. For the Rayleigh-wave dispersion analysis, surface-wave time windows were extracted from earthquakes worldwide with Mw ≥ 5.0 and band-pass filtered at 0.015–0.045 Hz. DisperPy was used to calculate event-level Rayleigh-wave group-velocity dispersion curves. After quality control, the median dispersion curve was calculated for each station. |
| Contributor | Haiqiang Lan, Ling Chen, Morteza Talebian, Yinghe Wu, Jianyong Zhang, and Zimu Wu |
| Date | 30th September 2026 |
| Type | The dataset contains 18 files for six OBS stations. Each station has one quality-controlled median Rayleigh-wave group-velocity dispersion curve and two station-averaged P-wave receiver functions calculated with Gaussian parameters of 2 and 3. The dispersion curves contain period, Rayleigh-wave group velocity, and velocity uncertainty, with an effective period range of 15–50 s. The receiver functions have a record length of 150 s, with the direct P-wave arrival located 20 s after the beginning of the record. |
| Format | The Rayleigh-wave group-velocity dispersion curves are stored as ASCII text (.txt) files containing three columns: period (s), Rayleigh-wave group velocity (km/s), and velocity uncertainty (km/s). The P-wave receiver functions are stored in SAC (.sac) format. The SAC headers contain the station code and coordinates, a sampling interval of 0.02 s (DELTA = 0.02 s), and 7,501 samples (NPTS = 7,501). The timing headers specify the record start (B) and direct P-wave arrival (A), with A − B = 20 s. |
| URL | http://www.geophys.ac.cn/ArticleData/20261008Makran_OBS_RF_Disp_2019.zip |
| DOI | 10.12197/2026GA034 |
| Source | |
| Language | Eng |
| Relation | |
| Coverage | |
| Rights | Institute of Geology and Geophysics, Chinese Academy of Sciences |