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Author-submitted data information


ID 330
Title Distinct lithospheric structure in the Xing'an-Mongolian Orogenic Belt
Creator Yang He
Subject Seismic receiver function waveform data
Publisher Xiukuan Zhao
Description To understand the lithospheric structure in Xing'an-Mongolian Orogenic Belt, we collect seismic data from 103 regional seismic stations in Northeast China to conduct S- and P-Receiver Function (S-RF; P-RF) study. The 103 regional broadband seismic stations belong to two seismic arrays: (1) 81 temporary stations from the NorthEast China Seismic Array to Investigate Deep Subduction (NECsaids) during 07/2010 and 10/2018, (2) 22 permanent stations from the China Earthquake Administration array (CEA, doi: 10.11998/SeisDmc/SN, http://www.seisdmc.ac.cn) between 08/2007 and 12/2014. For our S-RF analysis, we first acquired the teleseismic waveform data for earthquakes with magnitude larger than 5.5 and epicentral distances ranging from 55° to 85°. For P-RF analysis, we selected earthquakes with magnitude larger than 5.0 and epicentral distances between 30° to 90°. The three-component seismograms were then rotated into radial, transverse, and vertical components. We windowed around the theoretical S arrivals (-150 sec to 20 sec) and filtered with a bandpass filter of 0.01 – 0.5 Hz for S-RF, the theoretical P arrivals (-20 sec to 100 sec) and filtered with a bandpass filter of 0.05 – 1.5 Hz for P-RF. We obtained the S-RFs and P-RFs using time-domain maximum entropy deconvolution method with Gaussian low-pass filter. The Gaussian parameter we set for S-RF is 1.5 and P-RF for 3.0 to conduct the frequency-dependent RF analysis. After the deconvolution, the careful removal of the bad traces manually is essential in our study. Finally, the number of selected high-quality S-RFs is 1684 and P-RFs is 17362 (in each frequency bands).

The final S-RF waveform files are stored in the directories as:
./S-RF/network/station/YYYYMMDDHHMM.network.station.eqz
(e.g., /S-RF/NECsaids/EW01/201009070057.DB.EW01.eqz).
The final P-RF waveform files are stored in the directories as:
./P-RF/network/station/YYYYMMDDHHMM.network.station.eqr
(e.g., /P-RF/NECsaids/EW01/201007290731.DB.EW01.eqr).
Earthquake information can be found on the USGS website
( https://earthquake.usgs.gov/earthquakes/search/ ).

The results of the LAB and MLD depths, the RF numbers and LAB depth error estimates are stored in the excel file 2021GL097283-SM-TableS1.xlsx.
Contributor Qi-Fu Chen, Ling Chen, Xin Wang, Guangrui Guo, Tianjue Li, Kaiwen Zhang, Juan Li, Yun Chen
Date NorthEast China Seismic Array to Investigate Deep Subduction (NECsaids) between 07/2010 and 10/2018; China Earthquake Administration array (CEA) between 08/2007 and 12/2014.
Type The S Receiver Functions (S-RFs) are stored with a sampling rate of 20 Hz and a length of 170 sec (-20 sec to 150 sec). The time zero refers to the direct S-wave; The P Receiver Functions (P-RFs) are stored with a sampling rate of 20 Hz and a length of 120 sec (-20 sec to 100 sec). The time zero refers to the direct P-wave.
Format .eqz for S-PFs and .eqr for P-RFs, (standard SAC format, can be read directly using sac, Obspy, MATLAB, et al.,)
URL http://www.geophys.ac.cn/ArticleData/20211206data_for_XMOB_RFs.zip
DOI 10.12197/2021GA031
Source
Language eng
Relation
Coverage
Rights Institute of Geology and Geophysics, Chinese Academy of Sciences