Challenges and Potential of Waveform Modeling for Crustal Scale Predictions

Porritt, R. W.; Conley, Andrea

doi:10.2172/1827491

Cited by 1 publication

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“…He examined and rejected a host of explanations, concluding that "the only suggestion which survives is that the oscillations are due to reflexions of the original pulse within the surface layers." Porritt and Conley (2021) have also explored the effects of stochastic scattering on synthetic waveforms, but using 2D and 2.5D finite difference methods. Their focus was on the regional seismograms of earthquakes in Oklahoma recorded by USArray stations.…”

Section: Developments In Explosion Monitoringmentioning

confidence: 99%

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Achievements and Prospects of Global Broadband Seismographic Networks After 30 Years of Continuous Geophysical Observations

Ringler

Anthony

Aster

et al. 2022

Reviews of Geophysics

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Global seismographic networks (GSNs) emerged during the late nineteenth and early twentieth centuries, facilitated by seminal international developments in theory, technology, instrumentation, and data exchange. The mid‐ to late‐twentieth century saw the creation of the World‐Wide Standardized Seismographic Network (1961) and International Deployment of Accelerometers (1976), which advanced global geographic coverage as seismometer bandwidth increased greatly allowing for the recording of the Earth's principal seismic spectrum. The modern era of global observations and rapid data access began during the 1980s, and notably included the inception of the GEOSCOPE initiative (1982) and GSN (1988). Through continual improvements, GEOSCOPE and the GSN have realized near‐real time recording of ground motion with state‐of‐art data quality, dynamic range, and timing precision to encompass 180 seismic stations, many in very remote locations. Data from GSNs are increasingly integrated with other geophysical data (e.g., space geodesy, infrasound and Interferometric Synthetic Aperture Radar). Globally distributed seismic data are critical to resolving crust, mantle, and core structure; illuminating features of the plate tectonic and mantle convection system; rapid characterization of earthquakes; identification of potential tsunamis; global nuclear test verification; and provide sensitive proxies for environmental changes. As the global geosciences community continues to advance our understanding of Earth structure and processes controlling elastic wave propagation, GSN infrastructure offers a springboard to realize increasingly multi‐instrument geophysical observatories. Here, we review the historical, scientific, and monitoring heritage of GSNs, summarize key discoveries, and discuss future associated opportunities for Earth Science.

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Section: Developments In Explosion Monitoringmentioning

confidence: 99%

“…Porritt and Conley (2021) have also explored the effects of stochastic scattering on synthetic waveforms, but using 2D and 2.5D finite difference methods. Their focus was on the regional seismograms of earthquakes in Oklahoma recorded by USArray stations.…”

Section: Progress In Seismic Event Location Promoted By Global Seismo...mentioning

confidence: 99%