David Wilson
David Wilson is the director of the Global Seismographic Network.
Science and Products
Filter Total Items: 51
Atmospheric waves and global seismoacoustic observations of the January 2022 Hunga eruption, Tonga Atmospheric waves and global seismoacoustic observations of the January 2022 Hunga eruption, Tonga
The 15 January 2022 climactic eruption of Hunga volcano, Tonga, produced an explosion in the atmosphere of a size that has not been documented in the modern geophysical record. The event generated a broad range of atmospheric waves observed globally by various ground-based and spaceborne instrumentation networks. Most prominent was the surface-guided Lamb wave (≲0.01 hertz), which we...
Authors
Robin Matoza, David Fee, Jelle Assink, Alexandra M. Iezzi, David Green, Keehoon Kim, Liam Toney, Thomas Lecocq, Siddharth Krishnamoorthy, Jean-Marie Lalande, Kiwamu Nishida, Kent Gee, Matthew Haney, Hugo Ortiz, Quentin Brissaud, Leo Martire, Lucie Rolland, Panagiotis Vergados, Alexandra Nippress, Junghyun Park, Shahar Shani-Kadmiel, Alex Witsil, Stephen Arrowsmith, Corentin Caudron, Shingo Watada, Anna Perttu, Benoit Taisne, Pierrick Mialle, Alexis Le Pichon, Julien Vergoz, Patrick Hupe, Philip Blom, Roger Waxler, Silvio De Angelis, Jonathan Snively, Adam Ringler, Robert Anthony, A.D. Jolly, Geoff Kilgour, Gil Averbuch, Maurizio Ripepe, Mie Ichihara, Alejandra Arciniega-Ceballos, Elvira Astafyeva, Lars Ceranna, Sandrine Cevuard, Il-Young Che, Rodrigo de Negri Leiva, Carl Ebeling, Laslo Evers, Luis Franco-Marin, Tom Gabrielson, Katrin Hafner, R. Harrison, Attila Komjathy, Giorgio Lacanna, John Lyons, Kenneth Macpherson, Emanuele Marchetti, Kathleen McKee, Rob Mellors, Gerardo Mendo-Perez, T. Mikesell, Edhah Munaibari, Mayra Oyola-Merced, Iseul Park, Christoph Pilger, Cristina Ramos, Mario Ruiz, Roberto Sabatini, Hans Schwaiger, Dorianne Tailpied, Carrick Talmadge, Jerome Vidot, Jeremy Webster, David Wilson
Classifying Worldwide Standardized Seismograph Network records using a simple convolution neural network Classifying Worldwide Standardized Seismograph Network records using a simple convolution neural network
The U.S. Geological Survey (USGS) maintains an archive of 189,180 digitized scans of analog seismic records from the World‐Wide Standardized Seismograph Network (WWSSN). Although these scans have been made public, the archive is too large to manually review, and few researchers have utilized large numbers of these records. To facilitate further research using this historical dataset, we...
Authors
Nagle Nagle-McNaughton, Adam Ringler, Robert Anthony, Alexis Alejandro, David Wilson, Justin Wilgus
Improved resolution across the Global Seismographic Network: A new era in low-frequency seismology Improved resolution across the Global Seismographic Network: A new era in low-frequency seismology
The Global Seismographic Network (GSN)—a global network of ≈150 very broadband stations—is used by researchers to study the free oscillations of the Earth (≈0.3–10 mHz) following large earthquakes. Normal‐mode observations can provide information about the radial density and anisotropic velocity structure of the Earth (including near the core–mantle boundary), but only when signal‐to...
Authors
Adam Ringler, Robert Anthony, P. Davis, Carl Ebeling, K. Hafner, R. Mellors, S. Schneider, David Wilson
Seismic background noise levels across the continental United States from USArray Transportable Array: The influence of geology and geography Seismic background noise levels across the continental United States from USArray Transportable Array: The influence of geology and geography
Since 2004, the most complete estimate of background noise levels across the continental U.S. was attained using 61 broadband seismic stations to calculate power spectral density (PSD) probability density functions. To improve seismic noise estimates across the U.S., we examine vertical component seismic data from the EarthScope USArray Transportable Array seismic network that rolled...
Authors
Robert Anthony, Adam Ringler, David Wilson
Modeling seismic network detection thresholds using production picking algorithms Modeling seismic network detection thresholds using production picking algorithms
Estimating the detection threshold of a seismic network (the minimum magnitude earthquake that can be reliably located) is a critical part of network design and can drive network maintenance efforts. The ability of a station to detect an earthquake is often estimated by assuming the spectral amplitude for an earthquake of a given size, assuming an attenuation relationship, and comparing...
Authors
David Wilson, Emily Wolin, William Yeck, Robert Anthony, Adam Ringler
Six decades of seismology at South Pole, Antarctica: Current limitations and future opportunities to facilitate new geophysical observations Six decades of seismology at South Pole, Antarctica: Current limitations and future opportunities to facilitate new geophysical observations
Seismograms from the South Pole have been important for seismological observations for over six decades by providing (until 2007) the only continuous seismic records from the interior of the Antarctic continent. The South Pole, Antarctica station has undergone many updates over the years, including conversion to a digital recording station as part of the Global Seismographic Network (GSN...
Authors
Robert Anthony, Adam Ringler, M. DuVernois, K. Anderson, David Wilson
A review of timing accuracy across the Global Seismographic Network A review of timing accuracy across the Global Seismographic Network
The accuracy of timing across a seismic network is important for locating earthquakes as well as studies that use phase‐arrival information (e.g., tomography). The Global Seismographic Network (GSN) was designed with the goal of having reported timing be better than 10 ms. In this work, we provide a brief overview of how timing is kept across the GSN and discuss how clock‐quality metrics...
Authors
Adam Ringler, Robert Anthony, David Wilson, D. Auerbach, S. Bargabus, P.W. Davis, M. Gunnels, K. Hafner, James Holland, A. Kearns, E. Klimczak
Rayleigh wave amplitude uncertainty across the Global Seismographic Network and potential implications for global tomography Rayleigh wave amplitude uncertainty across the Global Seismographic Network and potential implications for global tomography
The Global Seismographic Network (GSN) is a multiuse, globally distributed seismic network used by seismologists, to both characterize earthquakes and study the Earth’s interior. Most stations in the network have two collocated broadband seismometers, which enable network operators to identify potential metadata and sensor issues. In this study, we investigate the accuracy with which...
Authors
Adam Ringler, Robert Anthony, C. Dalton, David Wilson
Towards understanding relationships between atmospheric pressure variations and long-period horizontal seismic data: A case study Towards understanding relationships between atmospheric pressure variations and long-period horizontal seismic data: A case study
Variations in atmospheric pressure have long been known to introduce noise in long-period (>10 s) seismic records. This noise can overwhelm signals of interest such as normal modes and surface waves. Generally, this noise is most pronounced on the horizontal components where it arises due to tilting of the seismometer in response to changes in atmospheric pressure. Several studies have...
Authors
Alexis Alejandro, Adam Ringler, David Wilson, Robert Anthony, S.V. Moore
Magnetic field variations in Alaska: Recording space weather events on seismic stations in Alaska Magnetic field variations in Alaska: Recording space weather events on seismic stations in Alaska
Seismometers are highly sensitive instruments to not only ground motion but also many other nonseismic noise sources (e.g., temperature, pressure, and magnetic field variations). We show that the Alaska component of the Transportable Array is particularly susceptible to recording magnetic storms and other space weather events because the sensors used in this network are unshielded and...
Authors
Adam Ringler, Robert Anthony, David Wilson, Abram Claycomb, John Spritzer
Installation and performance of the Albuquerque Seismological Laboratory small-aperture posthole array Installation and performance of the Albuquerque Seismological Laboratory small-aperture posthole array
The Global Seismographic Network (GSN) has been used extensively by seismologists to characterize large earthquakes and image deep earth structure. Although the network’s original design goals have been met, the seismological community has suggested that the incorporation of small-aperture seismic arrays at select sites may improve performance of the network and enable new observations...
Authors
Robert Anthony, Adam Ringler, David Wilson, J. Zebulon Maharrey, Gary Gyure, Aaron Pepiot, Leo D. Sandoval, Samuel Sandoval, Thomas Telesha, Gilbert Vallo, Nicholas Voss
How processing methodologies can distort and bias power spectral density estimates of seismic background noise How processing methodologies can distort and bias power spectral density estimates of seismic background noise
Power spectral density (PSD) estimates are widely used in seismological studies to characterize background noise conditions, assess instrument performance, and study quasi‐stationary signals that are difficult to observe in the time domain. However, these studies often utilize different processing techniques, each of which can inherently bias the resulting PSD estimates. The level of...
Authors
Robert Anthony, Adam Ringler, David Wilson, Manochehr Bahavar, Keith Koper
Science and Products
Filter Total Items: 51
Atmospheric waves and global seismoacoustic observations of the January 2022 Hunga eruption, Tonga Atmospheric waves and global seismoacoustic observations of the January 2022 Hunga eruption, Tonga
The 15 January 2022 climactic eruption of Hunga volcano, Tonga, produced an explosion in the atmosphere of a size that has not been documented in the modern geophysical record. The event generated a broad range of atmospheric waves observed globally by various ground-based and spaceborne instrumentation networks. Most prominent was the surface-guided Lamb wave (≲0.01 hertz), which we...
Authors
Robin Matoza, David Fee, Jelle Assink, Alexandra M. Iezzi, David Green, Keehoon Kim, Liam Toney, Thomas Lecocq, Siddharth Krishnamoorthy, Jean-Marie Lalande, Kiwamu Nishida, Kent Gee, Matthew Haney, Hugo Ortiz, Quentin Brissaud, Leo Martire, Lucie Rolland, Panagiotis Vergados, Alexandra Nippress, Junghyun Park, Shahar Shani-Kadmiel, Alex Witsil, Stephen Arrowsmith, Corentin Caudron, Shingo Watada, Anna Perttu, Benoit Taisne, Pierrick Mialle, Alexis Le Pichon, Julien Vergoz, Patrick Hupe, Philip Blom, Roger Waxler, Silvio De Angelis, Jonathan Snively, Adam Ringler, Robert Anthony, A.D. Jolly, Geoff Kilgour, Gil Averbuch, Maurizio Ripepe, Mie Ichihara, Alejandra Arciniega-Ceballos, Elvira Astafyeva, Lars Ceranna, Sandrine Cevuard, Il-Young Che, Rodrigo de Negri Leiva, Carl Ebeling, Laslo Evers, Luis Franco-Marin, Tom Gabrielson, Katrin Hafner, R. Harrison, Attila Komjathy, Giorgio Lacanna, John Lyons, Kenneth Macpherson, Emanuele Marchetti, Kathleen McKee, Rob Mellors, Gerardo Mendo-Perez, T. Mikesell, Edhah Munaibari, Mayra Oyola-Merced, Iseul Park, Christoph Pilger, Cristina Ramos, Mario Ruiz, Roberto Sabatini, Hans Schwaiger, Dorianne Tailpied, Carrick Talmadge, Jerome Vidot, Jeremy Webster, David Wilson
Classifying Worldwide Standardized Seismograph Network records using a simple convolution neural network Classifying Worldwide Standardized Seismograph Network records using a simple convolution neural network
The U.S. Geological Survey (USGS) maintains an archive of 189,180 digitized scans of analog seismic records from the World‐Wide Standardized Seismograph Network (WWSSN). Although these scans have been made public, the archive is too large to manually review, and few researchers have utilized large numbers of these records. To facilitate further research using this historical dataset, we...
Authors
Nagle Nagle-McNaughton, Adam Ringler, Robert Anthony, Alexis Alejandro, David Wilson, Justin Wilgus
Improved resolution across the Global Seismographic Network: A new era in low-frequency seismology Improved resolution across the Global Seismographic Network: A new era in low-frequency seismology
The Global Seismographic Network (GSN)—a global network of ≈150 very broadband stations—is used by researchers to study the free oscillations of the Earth (≈0.3–10 mHz) following large earthquakes. Normal‐mode observations can provide information about the radial density and anisotropic velocity structure of the Earth (including near the core–mantle boundary), but only when signal‐to...
Authors
Adam Ringler, Robert Anthony, P. Davis, Carl Ebeling, K. Hafner, R. Mellors, S. Schneider, David Wilson
Seismic background noise levels across the continental United States from USArray Transportable Array: The influence of geology and geography Seismic background noise levels across the continental United States from USArray Transportable Array: The influence of geology and geography
Since 2004, the most complete estimate of background noise levels across the continental U.S. was attained using 61 broadband seismic stations to calculate power spectral density (PSD) probability density functions. To improve seismic noise estimates across the U.S., we examine vertical component seismic data from the EarthScope USArray Transportable Array seismic network that rolled...
Authors
Robert Anthony, Adam Ringler, David Wilson
Modeling seismic network detection thresholds using production picking algorithms Modeling seismic network detection thresholds using production picking algorithms
Estimating the detection threshold of a seismic network (the minimum magnitude earthquake that can be reliably located) is a critical part of network design and can drive network maintenance efforts. The ability of a station to detect an earthquake is often estimated by assuming the spectral amplitude for an earthquake of a given size, assuming an attenuation relationship, and comparing...
Authors
David Wilson, Emily Wolin, William Yeck, Robert Anthony, Adam Ringler
Six decades of seismology at South Pole, Antarctica: Current limitations and future opportunities to facilitate new geophysical observations Six decades of seismology at South Pole, Antarctica: Current limitations and future opportunities to facilitate new geophysical observations
Seismograms from the South Pole have been important for seismological observations for over six decades by providing (until 2007) the only continuous seismic records from the interior of the Antarctic continent. The South Pole, Antarctica station has undergone many updates over the years, including conversion to a digital recording station as part of the Global Seismographic Network (GSN...
Authors
Robert Anthony, Adam Ringler, M. DuVernois, K. Anderson, David Wilson
A review of timing accuracy across the Global Seismographic Network A review of timing accuracy across the Global Seismographic Network
The accuracy of timing across a seismic network is important for locating earthquakes as well as studies that use phase‐arrival information (e.g., tomography). The Global Seismographic Network (GSN) was designed with the goal of having reported timing be better than 10 ms. In this work, we provide a brief overview of how timing is kept across the GSN and discuss how clock‐quality metrics...
Authors
Adam Ringler, Robert Anthony, David Wilson, D. Auerbach, S. Bargabus, P.W. Davis, M. Gunnels, K. Hafner, James Holland, A. Kearns, E. Klimczak
Rayleigh wave amplitude uncertainty across the Global Seismographic Network and potential implications for global tomography Rayleigh wave amplitude uncertainty across the Global Seismographic Network and potential implications for global tomography
The Global Seismographic Network (GSN) is a multiuse, globally distributed seismic network used by seismologists, to both characterize earthquakes and study the Earth’s interior. Most stations in the network have two collocated broadband seismometers, which enable network operators to identify potential metadata and sensor issues. In this study, we investigate the accuracy with which...
Authors
Adam Ringler, Robert Anthony, C. Dalton, David Wilson
Towards understanding relationships between atmospheric pressure variations and long-period horizontal seismic data: A case study Towards understanding relationships between atmospheric pressure variations and long-period horizontal seismic data: A case study
Variations in atmospheric pressure have long been known to introduce noise in long-period (>10 s) seismic records. This noise can overwhelm signals of interest such as normal modes and surface waves. Generally, this noise is most pronounced on the horizontal components where it arises due to tilting of the seismometer in response to changes in atmospheric pressure. Several studies have...
Authors
Alexis Alejandro, Adam Ringler, David Wilson, Robert Anthony, S.V. Moore
Magnetic field variations in Alaska: Recording space weather events on seismic stations in Alaska Magnetic field variations in Alaska: Recording space weather events on seismic stations in Alaska
Seismometers are highly sensitive instruments to not only ground motion but also many other nonseismic noise sources (e.g., temperature, pressure, and magnetic field variations). We show that the Alaska component of the Transportable Array is particularly susceptible to recording magnetic storms and other space weather events because the sensors used in this network are unshielded and...
Authors
Adam Ringler, Robert Anthony, David Wilson, Abram Claycomb, John Spritzer
Installation and performance of the Albuquerque Seismological Laboratory small-aperture posthole array Installation and performance of the Albuquerque Seismological Laboratory small-aperture posthole array
The Global Seismographic Network (GSN) has been used extensively by seismologists to characterize large earthquakes and image deep earth structure. Although the network’s original design goals have been met, the seismological community has suggested that the incorporation of small-aperture seismic arrays at select sites may improve performance of the network and enable new observations...
Authors
Robert Anthony, Adam Ringler, David Wilson, J. Zebulon Maharrey, Gary Gyure, Aaron Pepiot, Leo D. Sandoval, Samuel Sandoval, Thomas Telesha, Gilbert Vallo, Nicholas Voss
How processing methodologies can distort and bias power spectral density estimates of seismic background noise How processing methodologies can distort and bias power spectral density estimates of seismic background noise
Power spectral density (PSD) estimates are widely used in seismological studies to characterize background noise conditions, assess instrument performance, and study quasi‐stationary signals that are difficult to observe in the time domain. However, these studies often utilize different processing techniques, each of which can inherently bias the resulting PSD estimates. The level of...
Authors
Robert Anthony, Adam Ringler, David Wilson, Manochehr Bahavar, Keith Koper