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Adam Ringler, Ph.D.

I am a scientist at the Albuquerque Seismological Laboratory.  I like to work on problems related to instrumentation and data quality.  If you have any queries please don't hesitate to contact me.

Publications

Ringler, A. T., R. E. Anthony, R. C. Aster, C. J. Ammon, S. Arrowsmith, H. Benz, C. Ebeling, W. -Y. Kim, H. C. P. Lau, V. Lekić, P. G. Richards, D. P. Schaff, M. Vallée, and W. Yeck (2021).  Achievements and prospects of global broadband seismic networks after 30 years of continuous geophysical observations, in review.

Ringler, A. T., R. E. Anthony, P. Davis, K. Hafner, R. Mellors, S. Schneider, and D. C. Wilson (2021).  Improved resolution across the Global Seismographic Network: A new era in low-frequency seismology, in review.

Anthony, R. E., A. T. Ringler, and D. C. Wilson (2021).  Seismic background noise levels across the Continental United States from USArray Transportable Array: The influence of geology and geopgraphy, in review.

Yang, Y., X. Song, and A. T. Ringler (2021).  An evaluation of the timing accuracy of global and regional seismic stations and networks, Seis. Res. Lett., in press.

Wilson, D. C., E. Wolin, W. Yeck, R. E. Anthony, and A. T. Ringler (2021).  Modeling seismic network detection thresholds using production picking algorithms, Seis. Res. Lett., in press.

Ringler, A. T. and R. E. Anthony (2021).  Local variations in broadband sensor installations: Orientations, sensitivities, and noise levels, Pure Appl. Geophys., in press.

Zürn, W., T. Forbriger, R. Widmer-Schnidrig, P. Duffner, and A. T. Ringler (2021).  Modeling tilt noise caused by atmospheric processes at long periods for several horizontal seismometers at BFO - A reprise, Geophys. J. Int., DOI: 10.1093/gji/ggab336 [Link]

Ringler, A. T., D. B. Mason, G. Laske, T. Storm, and M. Templeton (2021).  Why do my squiggles look funny? A gallery of compromised seismic signals, Seis. Res. Lett., DOI: 10.1785/0220210094 [Link]

Ringler, A. T., R. E. Anthony, C. A. Dalton, and D. C. Wilson (2021).  Rayleigh-wave amplitude uncertainty across the Global Seismographic Network and potential implications for global tomography, Bull. Seis. Soc. Amer., 111 (3), 1273-1292. [Link]

Ringler, A. T., R. E. Anthony, D. C. Wilson, D. Auerbach, S. Bargabus, P. Davis, M. Gunnels, K. Hafner, J. F. Holland, A. Kearns, and E. Klimczak (2021).  A review of timing accuracy across the Global Seismographic Network, Seis. Res. Lett., 92 (4), 2270-2281 [Link]

Anthony, R. E., A. T. Ringler, M. DuVernois, K. R. Anderson, and D. C. Wilson (2021).  Six decades of seismology at South Pole, Antarctica: Current limitiations and future opportunities to facilitate new geophysical observations, Seis. Res. Lett., 92 (5), 2718-2735. [Link]

Tape, C., A. T. Ringler, and D. L. Hampton (2020).  Recording the Aurora at seismometers across Alaska, Seis. Res. Lett., 91 (6), 3039-3053. [Link]

Alejandro, A. C. B., A. T. Ringler, D. C. Wilson, R. E. Anthony, and S. V. Moore (2020).  Towards understanding relationships between atmo

Science and Products

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Auroras and Earthquakes: Strange Companions

Release Date: JULY 6, 2020 In 1722 and 1723 a London clockmaker, George Graham, observed daily and consistent variations on one of his instruments, a “Needle upon the Pin” (a compass), for which he had no explanation. Swedish scientists obtained some of Graham’s instruments to record what is now known to be the variations in Earth’s magnetic field. In 1741, they noticed a significant deflection of...
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Natural Hazards, Earthquake Hazards, Geomagnetism
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Auroras and Earthquakes: Strange Companions

Release Date: JULY 6, 2020 In 1722 and 1723 a London clockmaker, George Graham, observed daily and consistent variations on one of his instruments, a “Needle upon the Pin” (a compass), for which he had no explanation. Swedish scientists obtained some of Graham’s instruments to record what is now known to be the variations in Earth’s magnetic field. In 1741, they noticed a significant deflection of...
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Filter Total Items: 60

Achievements and prospects of global broadband seismographic networks after 30 years of continuous geophysical observations

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
By
Natural Hazards, Geologic Hazards Science Center

Characteristics, relationships and precision of direct acoustic-to-seismic coupling measurements from local explosions

Acoustic energy originating from explosions, sonic booms, bolides and thunderclaps have been recorded on seismometers since the 1950s. Direct pressure loading from the passing acoustic wave has been modelled and consistently observed to produce ground deformations of the near surface that have retrograde elliptical particle motions. In the past decade, increased deployments of colocated seismomete
By
Natural Hazards, Geologic Hazards Science Center

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 observed prop
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Natural Hazards, Volcano Hazards, Geologic Hazards Science Center, Volcano Science Center

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 develop a
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Natural Hazards, Geologic Hazards Science Center

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‐noise ratios
By
Natural Hazards, Earthquake Hazards, Geologic Hazards Science Center

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 across the U.
By
Natural Hazards, Geologic Hazards Science Center

Local variations in broadband sensor installations: Orientations, sensitivities, and noise levels

As seismologists continue to place more stringent demands on data quality, accurately described metadata are becoming increasingly important. In order to better constrain the orientation and sensitivities of seismometers deployed in U.S. Geological Survey networks, the Albuquerque Seismological Laboratory (ASL) has recently begun identifying true north with a fiber optic gyroscope (FOG) and has de
By
Natural Hazards, Earthquake Hazards, Geologic Hazards Science Center

An evaluation of the timing accuracy of global and regional seismic stations and networks

Clock accuracy is a basic parameter of any seismic station and has become increasingly important for seismology as the community seeks to refine structures and dynamic processes of the Earth. In this study, we measure the arrival time differences of moderate repeating earthquakes with magnitude 5.0–5.9 in the time range of 1991–2017 at the same seismic stations by cross‐correlating their highly si
By
Natural Hazards, Earthquake Hazards, Geologic Hazards Science Center

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 the predic
By
Natural Hazards, Earthquake Hazards, Earthquake Science Center, Geologic Hazards Science Center

Modelling tilt noise caused by atmospheric processes at long periods for several horizontal seismometers at BFO—A reprise

Tilting of the ground due to loading by the variable atmosphere is known to corrupt very long period horizontal seismic records (below 10 mHz) even at the quietest stations. At BFO (Black Forest Observatory, SW-Germany), the opportunity arose to study these disturbances on a variety of simultaneously operated state-of-the-art broad-band sensors. A series of time windows with clear atmospherically
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Natural Hazards, Geologic Hazards Science Center

Why do my squiggles look funny? A gallery of compromised seismic signals

Seismic instruments are highly sensitive and capable of recording a large range of different Earth signals. The high sensitivity of these instruments also makes them prone to various failures. Although many failures are very obvious, such as a dead channel, there are other more subtle failures that easily go unnoticed by both network operators and data users. This work documents several different
By
Natural Hazards, Geologic Hazards Science Center

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) in 1991
By
Natural Hazards, Geologic Hazards Science Center

ASL Sensor Test Suite

This program is used to analyze various aspects of seismic sensor data in order to determine information about their configuration, such as gain and orientation.

Science and Products