Author-submitted data information
| ID | 617 |
| Title | Multi-frequency P-wave receiver functions and autocorrelations from a short linear array in Jaz Murian basin, SE Iran |
| Creator | Haiqiang Lan |
| Subject | Multi-frequency P-RFs and autocorrelations |
| Publisher | Xiukuan Zhao |
| Description | To gain a better knowledge of the Jaz Murian sedimentary Basin, a linear seismic array consisting of 5 broadband stations (L14, L15, L16, L17 and L18; equipped with Trillium 120PA seismometers (120 s - 175 Hz) and Taurus digital seismographs was operated from March 2017 to September 2018 under the program of “China-Iran geological and geophysical survey in the Iranian plateau (CIGSIP)”. The broadband seismic stations were deployed along a linear N-S transect, from the southern end of the magmatic arc to the northern border of the ophiolitic complex, with a spacing of about 13 km. Earthquakes with magnitudes≥5.0 and epicentral distances of 28°- 92° and 50°- 90°were selected for P wave and S wave, respectively. A time-domain iterative deconvolution method was used to calculate the P-RFs. The incorporation of multi-frequency data ensures a balance between the resolution and signal-to-noise ratio, and facilitates more effective imaging of shallow crustal structures. The P-RF calculation for multi-frequencies is introduced through a different Gaussian filter that represented the RF waveform to suppress different high-frequency noise. We calculated the P-RFs using six Gaussian parameters (2.5, 3.0, 3.5, 4.0, 4.5, and 5.0), which represented different high-frequency cut-off frequencies. P-RF waveform files are finally stored in the directories as: ./MultiFreq_PRFs/station/Gaussian_parameters/station_yyddd_hhmmss.eqr (e.g., ./MultiFreq_PRFs/L14/AG5/L14_18251_023131.eqr). Moreover, vertical and radial autocorrelations for stations L14, L15, L16, L17, and L18, derived from P- and S-wave coda autocorrelations are stored in the directories as: ./Autocorrelations/Wavetype/station/station_yyddd_hhmmss.* (e.g., ./Autocorrelogram/Pwave/L14/L14_18251_071649.z). |
| Contributor | Ling Chen, Bo Wan, Morteza Talebian, Sebastien Chevrot, Yang Chu, Xu Wang, Yifan Gao, Zimu Wu, Wenjiao Xiao, and Rixiang Zhu |
| Date | March 2017 - September 2018 |
| Type | P-RFs are stored with a sampling rate of 25 Hz and a length of 60 sec. (-20 s before to 40 s after the zero time). The zero time in P-RFs refers to the direct P-wave. Autocorrelation data were cut with a 40 s time windows starting at -10 s. |
| Format | Vertical and radial RFs are stored in SAC format with‘.eqz’ and‘.eqr’ extensions, respectively. Autocorrelations are also stored in SAC format with ‘.z’ and ‘.r’ extensions for vertical and radial component correspondingly. In the header of each SAC file, necessary information such as locations of the station (STLA: latitude; STLO: longitude; STEL: elevation) and earthquake (EVLA, EVLO, EVDP), sampling interval (DELTA), and ray parameter (USER4) has been given. These standard SAC formats can be read using SAC, Obspy, MATLAB, et al. |
| URL | http://www.geophys.ac.cn/ArticleData/20240918IranJazMurian.zip |
| DOI | 10.12197/2024GA018 |
| Source | |
| Language | eng |
| Relation | |
| Coverage | |
| Rights | Institute of Geology and Geophysics, Chinese Academy of Sciences |