A5052276293- Aerospace Engineering and Energy Systems
- Planetary Science and Exploration
- Seismic Waves and Analysis
- Ionosphere and magnetosphere dynamics
- Astro and Planetary Science
- Solar and Space Plasma Dynamics
- Earthquake Detection and Analysis
- Atmospheric Ozone and Climate
- Cryospheric studies and observations
- Seismology and Earthquake Studies
- Space Satellite Systems and Control
- Spacecraft Dynamics and Control
- Meteorological Phenomena and Simulations
- Atmospheric and Environmental Gas Dynamics
- Underwater Vehicles and Communication Systems
- Spacecraft and Cryogenic Technologies
- Aerodynamics and Fluid Dynamics Research
- Underwater Acoustics Research
- Air Quality Monitoring and Forecasting
- Spacecraft Design and Technology
Oklahoma State University Oklahoma City
2022-2024
Oklahoma State University
2021-2024
Sandia National Laboratories
2023
Abstract 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 Identification, and Security-Regolith Explorer SRC provided an unprecedented chance geophysical observations well-characterized source with known parameters, including timing trajectory. A collaborative effort involving researchers 16 institutions...
Abstract The heliotrope is a solar balloon design which constructed out of painter’s plastic, and the exterior coated in charcoal powder. Darkening plastic gives high absorptance, allows it to ascend into lower stratosphere float for hours at time. balloons have previously been used lift scientific instruments study chemical explosions, earthquakes, stratospheric aerosols. They also proposed as platform planetary exploration. Flight predictions are crucial preflight planning reduce safety...
Heliotropes are passive solar hot air balloons that capable of achieving nearly level flight within the lower stratosphere for several hours. These inexpensive platforms enable stratospheric sensing with high-cadence enabled by low cost to manufacture, but their performance has not yet been assessed systematically. During July September 2021, 29 heliotropes were successfully launched from Oklahoma and achieved float altitude as part Balloon-based Acoustic Seismology Study (BASS). All...
Solar balloons are a novel inexpensive method of high altitude observations, relying on solar heating for buoyant lift. As part the NASA Nationwide Eclipse Ballooning Project (NEBP) and in preparation eclipses 2023 2024, researchers at Oklahoma State University (OSU) used this opportunity to evaluate impact insolation balloon dynamics. Two teams OSU students were tasked with development testing sensor payload that would record measurements temperature, pressure, humidity, radiation. On same...
View Video Presentation: https://doi.org/10.2514/6.2022-4113.vid Heliotropes are solar-powered lighter-than-air vehicles, which capable of achieving multihour, nearly level flight within the lower stratosphere. Solar radiation is used to heat ambient air balloon envelope, generates buoyant lift without use a gas. Once heliotrope achieves its float altitude, it will remain there until sun drops below horizon. From 2020-22, OSU developed and tested heliotropes for in variety atmospheric...
Aerial seismology (AS) consists in detecting and characterizing atmospheric infrasound induced by ground displacements. Several studies have demonstrated that seismo-acoustic is highly similar to the seismic motion, making it a viable alternative for on planetary bodies where deploying seismometers technologically challenging. Until recently, such experiments were restricted artificially-generated events. However, July 22, 2019, Brissaud et al. detected first time infrasonic signature of...
Balloon-based seismology through the study of low-frequency seismo-acoustic signals (infrasound) has gained acceptance as a viable way to seismic activity on Venus. barometers have potential detect and characterize atmospheric waves launched by venusquakes volcanic eruptions while offering substantially longer instrument lifetimes in Venus middle atmosphere, where temperature pressure are significantly more benign (0–100°C, ∼1 atm) compared surface (>460 °C, ∼90 atm). One major...
Low frequency sounds can travel vast distances across the planet, carrying information about events that generated them as well medium through which they travel. These are usually recorded on surface-based sensors. Recently, however, sensors have been lofted high altitude balloons, where revealed a rich soundscape quite different than of Earth’s surface. Here we describe acoustic observations lower stratosphere conducted using inexpensive microbarometers via passive solar hot air balloons....
Wind noise significantly limits the use of infrasound for remote sensing using ground-based sensors. Recently, there has been a surge in studies high altitude balloons, termed heliotropes, to mitigate this problem. Since balloon drifts with wind is minimal relative speed between and local air. To resolve direction arrival from signal, must be sufficient separation However, increases motion sensors On Earth shown have weak dependence, but such measurements are currently being considered as...