WDC for Geophysics, Beijing(中国地球物理学科中心)
 
   

Author-submitted data information


ID 806
Title Teleseismic waveform data from second-phase China-Myanmar Geophysical Survey in the Myanmar Orogen (CMGSMO II) array
Creator Shun Yang
Subject Teleseismic waveform data
Publisher Xiukuan Zhao
Description To constrain the geometry of the subducted slab beneath Myanmar, we constructed high-resolution images of upper-mantle structure using seismic data from the dense second-phase China‐Myanmar Geophysical Survey in the Myanmar Orogen (CMGSMO II) array.
Earthquakes with magnitudes larger than 5.5 and epicentral distances of 30° - 90° were selected for phase picking. P-wave arrivals were picked from vertical component seismograms within frequency ranges of 0.1–0.5 Hz and 0.5–2.0 Hz.
The waveforms for P-wave finite-frequency tomography are stored in tomography_data.zip as:
./tomography_data/waveform_data/P.YYYY.DDD.HH.MM.SS/network.P.station.?.1
The waveforms named as network.P.station.h.1 and network.P.station.m.1 have bandpass filters of 0.5-2.0 Hz and 0.1-0.5 Hz, respectively.
(e.g., ./tomography_data/waveform_data /P.2019.017.15.06.35/M2.P.C26.h.1).
Contributor Yumei He, Mingming Jiang, Xiaofeng Liang, Jien Zhang, Chit Thet Mon, Yuan Ling, Guangbing Hou, Myo Thant, Kyaing Sein
Date Jan. 2019 – Aug. 2020
Type The teleseismic vertical-component waveforms are stored with a sampling rate of 20 Hz. The waveforms used for P-wave finite-frequency tomography are cut with 140 s and 110 s time windows for the waveforms within the frequency ranges of 0.1-0.5 Hz and 0.5-2.0 Hz respectively. The time windows start 80 s before the theoretical P arrival time predicted by the reference model IASP91.
Format The teleseismic vertical-component waveforms are stored in SAC format. These standard SAC formats can be read using Sac, Obspy, Matlab and so on.
URL http://www.geophys.ac.cn/ArticleData/20260211tomography_data.zip
DOI 10.12197/2026GA007
Source
Language Eng
Relation
Coverage
Rights Institute of Geology and Geophysics, Chinese Academy of Sciences