Publications
147 results found
Zweifel P, Mance D, ten Pierick J, et al., 2021, Seismic High-Resolution Acquisition Electronics for the NASA InSight Mission on Mars, BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA, Vol: 111, Pages: 2909-2923, ISSN: 0037-1106
Kim D, Davis P, Lekic V, et al., 2021, Potential Pitfalls in the Analysis and Structural Interpretation of Seismic Data from the Mars InSight Mission, BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA, Vol: 111, Pages: 2982-3002, ISSN: 0037-1106
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- Citations: 5
Hurst K, Fayon L, Knapmeyer-Endrun B, et al., 2021, Resonances of the InSight Seismometer on Mars, BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA, Vol: 111, Pages: 2951-2963, ISSN: 0037-1106
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- Citations: 1
Stott AE, Charalambous C, Warren TJ, et al., 2021, The Site Tilt and Lander Transfer Function from the Short-Period Seismometer of InSight on Mars, BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA, Vol: 111, Pages: 2889-2908, ISSN: 0037-1106
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- Citations: 2
Dahmen NL, Zenhausern G, Clinton F, et al., 2021, Resonances and Lander Modes Observed by InSight on Mars (1-9 Hz), BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA, Vol: 111, Pages: 2924-2950, ISSN: 0037-1106
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- Citations: 5
Knapmeyer M, Stahler SC, Daubar I, et al., 2021, Seasonal seismic activity on Mars, EARTH AND PLANETARY SCIENCE LETTERS, Vol: 576, ISSN: 0012-821X
Sollberger D, Schmelzbach C, Andersson F, et al., 2021, A Reconstruction Algorithm for Temporally Aliased Seismic Signals Recorded by the InSight Mars Lander., Earth Space Sci, Vol: 8, ISSN: 2333-5084
In December 2018, the NASA InSight lander successfully placed a seismometer on the surface of Mars. Alongside, a hammering device was deployed at the landing site that penetrated into the ground to attempt the first measurements of the planetary heat flow of Mars. The hammering of the heat probe generated repeated seismic signals that were registered by the seismometer and can potentially be used to image the shallow subsurface just below the lander. However, the broad frequency content of the seismic signals generated by the hammering extends beyond the Nyquist frequency governed by the seismometer's sampling rate of 100 samples per second. Here, we propose an algorithm to reconstruct the seismic signals beyond the classical sampling limits. We exploit the structure in the data due to thousands of repeated, only gradually varying hammering signals as the heat probe slowly penetrates into the ground. In addition, we make use of the fact that repeated hammering signals are sub-sampled differently due to the unsynchronized timing between the hammer strikes and the seismometer recordings. This allows us to reconstruct signals beyond the classical Nyquist frequency limit by enforcing a sparsity constraint on the signal in a modified Radon transform domain. In addition, the proposed method reduces uncorrelated noise in the recorded data. Using both synthetic data and actual data recorded on Mars, we show how the proposed algorithm can be used to reconstruct the high-frequency hammering signal at very high resolution.
Stahler SC, Khan A, Banerdt WB, et al., 2021, Seismic detection of the martian core, SCIENCE, Vol: 373, Pages: 443-+, ISSN: 0036-8075
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- Citations: 39
Khan A, Ceylan S, van Driel M, et al., 2021, Upper mantle structure of Mars from InSight seismic data, SCIENCE, Vol: 373, Pages: 434-+, ISSN: 0036-8075
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- Citations: 23
Charalambous C, McClean JB, Baker M, et al., 2021, Vortex-Dominated Aeolian Activity at InSight's Landing Site, Part 1: Multi-Instrument Observations, Analysis, and Implications, JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, Vol: 126, ISSN: 2169-9097
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- Citations: 7
Brinkman N, Stahler SC, Giardini D, et al., 2021, First Focal Mechanisms of Marsquakes, JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, Vol: 126, ISSN: 2169-9097
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- Citations: 8
Compaire N, Margerin L, Garcia RF, et al., 2021, Autocorrelation of the Ground Vibrations Recorded by the SEIS-InSight Seismometer on Mars, JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, Vol: 126, ISSN: 2169-9097
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- Citations: 11
Charalambous C, Stott AE, Pike WT, et al., 2021, A Comodulation Analysis of Atmospheric Energy Injection Into the Ground Motion at InSight, Mars, JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, Vol: 126, ISSN: 2169-9097
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- Citations: 8
Nunn C, Pike WT, Standley IM, et al., 2021, Standing on Apollo’s shoulders: A microseismometer for the moon, Planetary Science Journal, Vol: 2
Seismometers deployed on the Moon by the Apollo astronauts from 1969 to 1972 detected moonquakes and impacts, and added to our understanding of the lunar interior. Several lunar missions are currently being planned, including the Commercial Lunar Payload Services (CLPS), the Lunar Geophysical Network, and the astronaut program Artemis. We propose a microseismometer for the Moon: the Silicon Seismic Package (SSP). The SSP’s sensors are etched in silicon, and are predicted to have a noise floor below 2 ´ 10-10 (m s-2) Hz between 0.3 and 3 Hz (similar to the Apollo instruments between 0.3 and 0.5 Hz, and better than Apollo above 0.5 Hz). The SSP will measure horizontal and vertical motion with the three sensors in a triaxial configuration. The instrument is robust to high shock and vibration and has an operational range from -80°C to +60°C, allowing deployment under harsh conditions. The first-generation version of this sensor, the SEIS-SP, was deployed on Mars in 2018 as part of the InSight mission’s seismic package. We will reconfigure the seismometer for the lower gravity of the Moon. We estimate that a single SSP instrument operating for one year would detect around 74 events above a signal-to-noise ratio of 2.5, as well as an additional 500+ above the noise floor. A mission lasting from lunar dawn until dusk, carried on a CLPS lander, could test the instrument in situ, and provide invaluable information for an extensive future network.
Dahmen NL, Clinton JF, Ceylan S, et al., 2021, Super High Frequency Events: A New Class of Events Recorded by the InSight Seismometers on Mars, JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, Vol: 126, ISSN: 2169-9097
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- Citations: 9
van Driel M, Ceylan S, Clinton JF, et al., 2021, High-Frequency Seismic Events on Mars Observed by InSight, JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, Vol: 126, ISSN: 2169-9097
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- Citations: 16
Ceylan S, Clinton JF, Giardini D, et al., 2021, Companion guide to the marsquake catalog from InSight, Sols 0-478: Data content and non-seismic events, PHYSICS OF THE EARTH AND PLANETARY INTERIORS, Vol: 310, ISSN: 0031-9201
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- Citations: 27
Clinton JF, Ceylan S, van Driel M, et al., 2021, The Marsquake catalogue from InSight, sols 0-478, PHYSICS OF THE EARTH AND PLANETARY INTERIORS, Vol: 310, ISSN: 0031-9201
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- Citations: 30
Scholz J-R, Widmer-Schnidrig R, Davis P, et al., 2020, Detection, Analysis, and Removal of Glitches From InSight's Seismic Data From Mars, EARTH AND SPACE SCIENCE, Vol: 7
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- Citations: 28
McClean JB, Merrison JP, Iversen JJ, et al., 2020, Filtration of simulated Martian atmosphere for in-situ oxygen production, PLANETARY AND SPACE SCIENCE, Vol: 191, ISSN: 0032-0633
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- Citations: 2
Golombek M, Kass D, Williams N, et al., 2020, Assessment of InSight Landing Site Predictions, JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, Vol: 125, ISSN: 2169-9097
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- Citations: 19
Weitz CM, Grant JA, Golombek MP, et al., 2020, Comparison of InSight Homestead Hollow to Hollows at the Spirit Landing Site, JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, Vol: 125, ISSN: 2169-9097
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- Citations: 6
Panning MP, Pike WT, Lognonne P, et al., 2020, On-Deck Seismology: Lessons from InSight for Future Planetary Seismology, JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, Vol: 125, ISSN: 2169-9097
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- Citations: 17
Grant JA, Warner NH, Weitz CM, et al., 2020, Degradation of Homestead Hollow at the InSight Landing Site Based on the Distribution and Properties of Local Deposits, JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, Vol: 125, ISSN: 2169-9097
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- Citations: 13
Golombek M, Warner NH, Grant JA, et al., 2020, Geology of the InSight landing site on Mars, NATURE COMMUNICATIONS, Vol: 11, ISSN: 2041-1723
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- Citations: 69
Banfield D, Spiga A, Newman C, et al., 2020, The atmosphere of Mars as observed by InSight, NATURE GEOSCIENCE, Vol: 13, Pages: 190-+, ISSN: 1752-0894
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- Citations: 97
Giardini D, Lognonne P, Banerdt WB, et al., 2020, The seismicity of Mars, NATURE GEOSCIENCE, Vol: 13, Pages: 205-+, ISSN: 1752-0894
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- Citations: 98
Lognonne P, Banerdt WB, Pike WT, et al., 2020, Constraints on the shallow elastic and anelastic structure of Mars from InSight seismic data, NATURE GEOSCIENCE, Vol: 13, Pages: 213-+, ISSN: 1752-0894
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- Citations: 106
Banerdt WB, Smrekar SE, Banfield D, et al., 2020, Initial results from the InSight mission on Mars, Nature Geoscience, Vol: 13, Pages: 183-189, ISSN: 1752-0894
NASA’s InSight (Interior exploration using Seismic Investigations, Geodesy and Heat Transport) mission landed in Elysium Planitia on Mars on 26 November 2018. It aims to determine the interior structure, composition and thermal state of Mars, as well as constrain present-day seismicity and impact cratering rates. Such information is key to understanding the differentiation and subsequent thermal evolution of Mars, and thus the forces that shape the planet’s surface geology and volatile processes. Here we report an overview of the first ten months of geophysical observations by InSight. As of 30 September 2019, 174 seismic events have been recorded by the lander’s seismometer, including over 20 events of moment magnitude Mw = 3–4. The detections thus far are consistent with tectonic origins, with no impact-induced seismicity yet observed, and indicate a seismically active planet. An assessment of these detections suggests that the frequency of global seismic events below approximately Mw = 3 is similar to that of terrestrial intraplate seismic activity, but there are fewer larger quakes; no quakes exceeding Mw = 4 have been observed. The lander’s other instruments—two cameras, atmospheric pressure, temperature and wind sensors, a magnetometer and a radiometer—have yielded much more than the intended supporting data for seismometer noise characterization: magnetic field measurements indicate a local magnetic field that is ten-times stronger than orbital estimates and meteorological measurements reveal a more dynamic atmosphere than expected, hosting baroclinic and gravity waves and convective vortices. With the mission due to last for an entire Martian year or longer, these results will be built on by further measurements by the InSight lander.
Liu H, Pike WT, Charalambous C, et al., 2019, Passive Method for Reducing Temperature Sensitivity of a Microelectromechanical Seismic Accelerometer for Marsquake Monitoring Below 1 Nano-g, PHYSICAL REVIEW APPLIED, Vol: 12, ISSN: 2331-7019
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- Citations: 8
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