Siddharth Krishnamoorthy
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View article: Aerial and Surface Mobility at Venus Enabled by Aerobots
Aerial and Surface Mobility at Venus Enabled by Aerobots Open
In response to a recommendation in the Origins, Worlds, and Life 2023–2032 Planetary Science and Astrobiology Decadal Survey, VEXAG (the Venus Exploration Analysis Group, a community-based forum for advocating for Venus exploration within …
View article: Flight Demonstration and Model Validation of a Prototype Variable-Altitude Venus Aerobot
Flight Demonstration and Model Validation of a Prototype Variable-Altitude Venus Aerobot Open
This paper details a significant milestone towards maturing a buoyant aerial robotic platform, or aerobot, for flight in the Venus clouds. We describe two flights of our subscale altitude-controlled aerobot, fabricated from the materials n…
View article: Geophysical Observations of the 2023 September 24 OSIRIS-REx Sample Return Capsule Reentry
Geophysical Observations of the 2023 September 24 OSIRIS-REx Sample Return Capsule Reentry Open
Sample return capsules (SRCs) entering Earth’s atmosphere at hypervelocity from interplanetary space are a valuable resource for studying meteor phenomena. The 2023 September 24 arrival of the Origins, Spectral Interpretation, Resource Ide…
View article: The OSIRIS-REx Sample Return Capsule re-entry: Initial results from a historic geophysical recording campaign against an ‘artificial meteor’
The OSIRIS-REx Sample Return Capsule re-entry: Initial results from a historic geophysical recording campaign against an ‘artificial meteor’ Open
View article: Airborne Acoustic Observations of the OSIRIS-REx Reentry
Airborne Acoustic Observations of the OSIRIS-REx Reentry Open
View article: Performance Characterization of Heliotrope Solar Hot-Air Balloons during Multihour Stratospheric Flights
Performance Characterization of Heliotrope Solar Hot-Air Balloons during Multihour Stratospheric Flights Open
Heliotropes are passive solar hot-air balloons that are capable of achieving nearly level flight within the lower stratosphere for several hours. These inexpensive flight platforms enable stratospheric sensing with high cadence enabled by …
View article: An Accurate and Automated Convective Vortex Detection Method for Long-Duration Infrasound Microbarometer Data
An Accurate and Automated Convective Vortex Detection Method for Long-Duration Infrasound Microbarometer Data Open
Heating of the surficial layer of the atmosphere often generates convective vortices, known as “dust devils” when they entrain visible debris. Convective vortices are common on both Earth and Mars, where they affect the climate via dust lo…
View article: Prospects for meteotsunami detection in earth’s atmosphere using GNSS observations
Prospects for meteotsunami detection in earth’s atmosphere using GNSS observations Open
View article: Effect of gravity wave induced small-scale perturbations in the atmosphere on infrasound arrival times at a high-altitude floating sensor system
Effect of gravity wave induced small-scale perturbations in the atmosphere on infrasound arrival times at a high-altitude floating sensor system Open
View article: Capturing the Sounds of the Stratosphere using Solar Hot Air Balloons
Capturing the Sounds of the Stratosphere using Solar Hot Air Balloons Open
View article: Proximal Exploration of Venus Volcanism with Teams of Autonomous Buoyancy-Controlled Balloons
Proximal Exploration of Venus Volcanism with Teams of Autonomous Buoyancy-Controlled Balloons Open
Altitude-controlled balloons hold great promise for performing high-priority scientific investigations of Venus's atmosphere and geological phenomena, including tectonic and volcanic activity, as demonstrated by a number of recent Earth-ba…
View article: A “Floatilla” of Airborne Seismometers for Venus
A “Floatilla” of Airborne Seismometers for Venus Open
Barometers floating on high‐altitude balloons in the relatively clement cloud layer on Venus could detect and characterize acoustic waves generated by seismic activity, avoiding the need for high‐temperature electronics required for surfac…
View article: The GUARDIAN system-a GNSS upper atmospheric real-time disaster information and alert network
The GUARDIAN system-a GNSS upper atmospheric real-time disaster information and alert network Open
We introduce GUARDIAN, a near-real-time (NRT) ionospheric monitoring software for natural hazards warning. GUARDIAN’s ultimate goal is to use NRT total electronic content (TEC) time series to (1) allow users to explore ionospheric TEC pert…
View article: Automated Detection of Dust-Devil Induced Pressure Signals.
Automated Detection of Dust-Devil Induced Pressure Signals. Open
View article: Automated Detection of Dust-Devil Induced Pressure Signals (Poster).
Automated Detection of Dust-Devil Induced Pressure Signals (Poster). Open
View article: Reply to Comment by I. van Zelst on “Estimates on the Frequency of Volcanic Eruptions on Venus”
Reply to Comment by I. van Zelst on “Estimates on the Frequency of Volcanic Eruptions on Venus” Open
In their 2022 study, Byrne and Krishnamoorthy ( https://doi.org/10.1029/2021je007040 ) extrapolated to Venus the most comprehensive record of eruptions on Earth, to estimate the frequency of volcanic events on the second planet. The approa…
View article: Detection of Convective Vortices on Infrasound Sensors through Cross-Correlation and Template Matching.
Detection of Convective Vortices on Infrasound Sensors through Cross-Correlation and Template Matching. Open
View article: VALENTInE: A Concept for a New Frontiers–Class Long-duration In Situ Balloon-based Aerobot Mission to Venus
VALENTInE: A Concept for a New Frontiers–Class Long-duration In Situ Balloon-based Aerobot Mission to Venus Open
Described here is a concept for a variable-altitude aerobot mission to Venus developed as part of the 2020 NASA Planetary Science Summer School in collaboration with NASA Jet Propulsion Laboratory. The Venus Air and Land Expedition: a Nove…
View article: 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 Open
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 observe…
View article: Infrasound direction of arrival determination using a balloon-borne aeroseismometer
Infrasound direction of arrival determination using a balloon-borne aeroseismometer Open
Free-floating balloons are an emerging platform for infrasound recording, but they cannot host arrays sufficiently wide for multi-sensor acoustic direction finding techniques. Because infrasound waves are longitudinal, the balloon motion i…
View article: Infrasound direction-of-arrival determination using a balloon-borne aeroseismometer.
Infrasound direction-of-arrival determination using a balloon-borne aeroseismometer. Open
View article: What can the sound of earthquakes tell us about a planet’s interior structure?
What can the sound of earthquakes tell us about a planet’s interior structure? Open
Earth and Space Science Open Archive Presented WorkOpen AccessYou are viewing the latest version by default [v1]What can the sound of earthquakes tell us about a planet’s interior structure?AuthorsQuentinBrissaudiDSiddharthKrishnamoorthyJe…
View article: Infrasound From a Buried Chemical Explosion Recorded on a Balloon in the Lower Stratosphere
Infrasound From a Buried Chemical Explosion Recorded on a Balloon in the Lower Stratosphere Open
Infrasound waveforms generated by natural and anthropogenic phenomena contain important clues about the size and nature of the event. We show that sensors on balloons in the lower stratosphere can record faithful representations of the nea…
View article: The First Detection of an Earthquake From a Balloon Using Its Acoustic Signature
The First Detection of an Earthquake From a Balloon Using Its Acoustic Signature Open
Extreme temperature and pressure conditions on the surface of Venus present formidable technological challenges against performing ground‐based seismology. Efficient coupling between the Venusian atmosphere and the solid planet theoretical…
View article: Seismology on Venus with infrasound observations from balloon and orbit
Seismology on Venus with infrasound observations from balloon and orbit Open
International audience
View article: The Thalassa Venus Mission Concept
The Thalassa Venus Mission Concept Open
The Thalassa mission concept was developed in response to the 2019 NASA Planetary Mission Concept Studies call. Using a multi-platform mission architecture, Thalassa seeks to address a single science goal: to determine the extent to which …
View article: Scientific Exploration of Venus with Aerial Platforms
Scientific Exploration of Venus with Aerial Platforms Open
View article: Venus Corona and Tessera Explorer (VeCaTEx)
Venus Corona and Tessera Explorer (VeCaTEx) Open
Venus Corona and Tessera Explorer (VeCaTEx) would use an aerobot to descend repeatedly beneath the dense clouds for imaging targeted area of the surface in the near infrared to address six of the prime investigations prioritized by VEXAG. …
View article: Detection of small-magnitude Earthquakesusing balloon-borne infrasound sensors
Detection of small-magnitude Earthquakesusing balloon-borne infrasound sensors Open
Earth and Space Science Open Archive PosterOpen AccessYou are viewing the latest version by default [v1]Detection of small-magnitude Earthquakesusing balloon-borne infrasound sensorsAuthorsQuentinBrissaudiDSiddharthKrishnamoorthyJenniferJa…
View article: Data from: The first detection of an earthquake from a balloon using its acoustic signature
Data from: The first detection of an earthquake from a balloon using its acoustic signature Open
This page contains data used in the analysis for the paper titled "The first detection of an earthquake from a balloon using its acoustic signature" in Geophysical Research Letters. This paper performs a data and model-based seismo-acousti…