Date: 4/20/2021
Session Time: 5:30 PM to 6:45 PM Pacific
Recent Development in Ultra-Dense Seismic Arrays with Nodes and Distributed Acoustic Sensing
Recently, ultra-dense seismic deployments, typically consisting of hundreds to thousands of short-period nodal instruments or distributed acoustic sensing (DAS) systems with fiber optic cables, have been widely used in seismological studies. These dense arrays have very close station spacings ranging from several meters to hundreds of meters to record well-sampled and unaliased wavefields in local or regional settings. Data acquired by such dense systems promote the development of new array-based analysis methods to mine seismic wavefields and greatly improve our understanding of fine-scale subsurface properties, microseismic activities and earthquake rupture processes. In this session, we invite contributions from areas that are broadly related to ultra-dense arrays. Example topics include, but are not limited to, novel instrument development, new field experiments with nodal or DAS arrays, high-resolution imaging of subsurface structure, environmental seismology, microseismic detection/relocation, source characterization and related big data processing techniques.
Joint SSC-SSA Session
Conveners
Marianne S. Karplus, University of Texas at El Paso (mkarplus@utep.edu)
Nori Nakata, Massachusetts Institute of Technology (nnakata@mit.edu)
Xiangfang Zeng, Chinese Academy of Sciences (zengxf@whigg.ac.cn)
Xiaobo Tian, Institute of Geology and Geophysics (txb@mail.iggcas.ac.cn)
Oral Presentations
| Participant Role | Details | Start Time | Minutes | Action |
|---|---|---|---|---|
| Submission | Reducing the Computational Cost of Seismic Interferometry With Compressed Array Data | 05:30 PM | 15 | View |
| Submission | Combining Horizontal Strain DAS and Local Seismic Stations in a Full Waveform Attribute Stacking Detector/Locator Algorithm: Verification Test for the Thorbjörn, Iceland, 2020 Unrest Episode | 05:45 PM | 15 | View |
| Submission | Seismological Evidence for the Earliest Global Subduction Network at 2 Ga | 06:00 PM | 15 | View |
| Submission | Earthquake Locations in the Pecos, TX Region of the Delaware Basin | 06:15 PM | 15 | View |
| Submission | Reverse-Time Migration of Fault Zone Reflected Waves: Methodology and Application to the Southern San Andreas Fault | 06:30 PM | 15 | View |
| Total: | 75 Minute(s) |
Recent Development in Ultra-Dense Seismic Arrays with Nodes and Distributed Acoustic Sensing
Description
Type: Oral
Date: 4/20/2021
Time: 5:30 PM to 6:45 PM Pacific