Infrasound direction of arrival determination using a balloon-borne aeroseismometer

Bowman, Daniel; Rouse, Jerry W.; Krishnamoorthy, Siddharth; Silber, E. A.

doi:10.1121/10.0010378

Cited by 11 publications

(13 citation statements)

References 20 publications

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“…Finally, the response of SPBs to high‐frequency atmospheric excitations is prone to significant uncertainties (Garcia et al., 2022; Podglajen et al., 2016). Further theoretical investigations are warranted to improve inferences on atmospheric wave properties from this invaluable platform (Bowman et al., 2022).…”

Section: Discussionmentioning

confidence: 99%

“…The former will be improved in future campaigns by increasing the sampling rate of pressure measurements. For the latter, different teams recently tried to cover the gap with IMUs (Bowman et al., 2022; Garcia et al., 2020) or antennas of pressure sensors (Garcia et al., 2020; Krishnamoorthy et al., 2019). We recommend including such dedicated instumentation in the future to provide additional constraint on wave properties.…”

Section: Discussionmentioning

confidence: 99%

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Stratospheric Balloon Observations of Infrasound Waves From the 15 January 2022 Hunga Eruption, Tonga

Podglajen

Pichon

Garcia

et al. 2022

Geophysical Research Letters

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Over the next hour, the volcanic plume penetrated deep into the atmosphere, reaching the stratopause and beyond (up to 58 km), whereas the umbrella cloud spread at approximately 35 km to form a 600 km diameter disk (Carr et al., 2022;Proud et al., 2022). The altitude of volcanic overshoots, the height and extent of the umbrella cloud set a new record for volcanic eruptions over the satellite era, overtaking Mount Pinatubo and its maximum reported plume height of 40 km (Holasek et al., 1996). The plume generated a large perturbation of the stratospheric aerosol layer and stratospheric composition (Millán et al., 2022), with likely substantial radiative impacts (Sellitto et al., 2022).Besides triggering globally detected surface seismic waves (

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Stratospheric Balloon Observations of Infrasound Waves From the 15 January 2022 Hunga Eruption, Tonga

Podglajen

Pichon

Garcia

et al. 2022

Geophysical Research Letters

View full text Add to dashboard Cite

show abstract

“…The former will be improved in future campaigns by increasing the sampling rate of pressure measurements. For the latter, different teams recently tried to cover the gap with IMUs (Garcia et al, 2020;Bowman et al, 2022) or antennas of pressure sensors (Krishnamoorthy et al, 2019;Garcia et al, 2020). We recommend including such dedicated instumentation in the future to provide additional constraint on wave properties.…”

Section: Discussionmentioning

confidence: 99%

“…Finally, the response of SPBs to high-frequency atmospheric excitations is prone to significant uncertainties (Podglajen et al, 2016;Garcia et al, 2022). Further theoretical investigations are warranted to improve inferences on atmospheric wave properties from this invaluable platform (Bowman et al, 2022).…”

Section: Discussionmentioning

confidence: 99%

Stratospheric balloon observations of infrasound wavesfrom the January 15 2022 Hunga eruption, Tonga

Podglajen

Pichon

Garcia

et al. 2022

Preprint

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The 15 January 2022 explosion of the Hunga Tonga-Hunga Ha'apai (HT-HH) volcano generated an extreme, quasi-instantaneous perturbation of the atmosphere. As part of its adjustment following the eruption, a rich spectrum of waves radiated away from HT-HH and achieved worldwide propagation. Among numerous platforms monitoring the event, two long-duration stratospheric balloons flying over the tropical Pacific provided unique observations of Lamb and infrasonic wave arrivals, detecting three revolutions of the Lamb wave and five of infrasound waves. Combined with ground measurements from the infrasound network of the International Monitoring System, such observations bring precious insights into the eruption process (chronology and altitude of energy release), and highlight previously unobserved long-range propagation of infrasound modes triggered by the eruption and their dispersion patterns. A comparison between ground-and balloon-based measurements emphasizes generally larger signal-to-noise ratios onboard the balloons and further demonstrates their potential for infrasound studies.

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“…While networks of balloons can greatly enhance information that may be gleaned about the subsurface, a single balloon can also engage in exploration of high scientific value for Venus. With a single balloon equipped with multiple barometers, or through the use of the “aeroseismometry” technique (Bowman et al., 2022), the direction of arrival of an infrasound wave may be inverted. The direction of arrival, especially for Rayleigh waves, does not necessarily allow for source geolocation.…”

Section: Significant Demonstrations On Earthmentioning

confidence: 99%

A “Floatilla” of Airborne Seismometers for Venus

Krishnamoorthy

Bowman

2023

Geophysical Research Letters

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The internal structure of a planetary body results from conditions in the early solar system followed by billions of years of geological evolution since then. Thus, studying and comparing the internal structures of planetary bodies offers a glimpse into the formation of the solar system itself. Seismology has proven to be one of the most effective tools to study planetary interiors for rocky bodies. This is because seismic waves generated by tectonic and volcanic activity interact with the solid planet, allowing for the determination of its internal structure.Seismology on global scales is a "wait and watch" science-thousands of seismometers deployed as part of vast networks on Earth passively record ground motion to detect and study seismic waves. Seismometers deployed by the Apollo missions on the Moon remained active for several years and recorded hundreds of moonquakes (Nunn et al., 2020). Similarly on Mars, the intrepid InSight lander lay in wait for several months for the first detection of a marsquake, but has since then detected over 1300 events, of which the larger ones have helped determine the size of the planet's core (Stähler et al., 2021). These long-duration seismic recordings have revolutionized our understanding of the Earth and its neighborhood. We now have a detailed map of Earth's interior, and know that Mars and the Moon are devoid of large-scale plate tectonics, but still currently seismically active. We know the layered structure of each of these bodies, the sizes of their cores, and the composition of their crusts.Venus is considered Earth's twin, but waiting and watching from its surface is easier said than done. Flybys from the Mariner missions discovered that the surface of Venus was inhospitably hot (>460°C) and dense (>90 atmospheres) (Barath et al., 1963), which was also confirmed by in-situ measurements by the Soviet Venera landers (Keldysh, 1977). The current record for longest survival time on the surface of Venus is held by the Venera-13 lander at 127 min (National Aeronautics and Space Administration (NASA), 2022), a time span that is much too short for conducting meaningful seismic recordings. Thus, the interior structure of Venus remains

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Infrasound direction of arrival determination using a balloon-borne aeroseismometer

Cited by 11 publications

References 20 publications

Stratospheric Balloon Observations of Infrasound Waves From the 15 January 2022 Hunga Eruption, Tonga

Stratospheric Balloon Observations of Infrasound Waves From the 15 January 2022 Hunga Eruption, Tonga

Stratospheric balloon observations of infrasound wavesfrom the January 15 2022 Hunga eruption, Tonga

A “Floatilla” of Airborne Seismometers for Venus

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