[HTML][HTML] Opinion: Recent developments and future directions in studying the mesosphere and lower thermosphere

JMC Plane, J Gumbel, KS Kalogerakis… - Atmospheric …, 2023 - acp.copernicus.org
This article begins with a review of important advances in the chemistry and related physics
of the mesosphere and lower thermosphere (MLT) region of the atmosphere that have …

[HTML][HTML] Comparative study between ground-based observations and NAVGEM-HA analysis data in the mesosphere and lower thermosphere region

G Stober, K Baumgarten, JP McCormack… - Atmospheric …, 2020 - acp.copernicus.org
Recent studies have shown that day-to-day variability of the migrating semidiurnal solar
(SW2) tide within the mesosphere and lower thermosphere (MLT) is a key driver of …

Multi-scale dynamics of Kelvin–Helmholtz instabilities. Part 1. Secondary instabilities and the dynamics of tubes and knots

DC Fritts, L Wang, TS Lund, SA Thorpe - Journal of Fluid Mechanics, 2022 - cambridge.org
We perform a direct numerical simulation (DNS) of interacting Kelvin–Helmholtz instabilities
(KHI) that arise at a stratified shear layer where KH billow cores are misaligned or exhibit …

Gravity waves emitted from Kelvin‐Helmholtz instabilities

W Dong, DC Fritts, AZ Liu, TS Lund… - Geophysical Research …, 2023 - Wiley Online Library
Abstract Fritts, Wang, Lund, and Thorpe (2022, https://doi. org/10.1017/jfm. 2021.1085) and
Fritts, Wang, Thorpe, and Lund (2022, https://doi. org/10.1017/jfm. 2021.1086) described a 3 …

Multi‐scale Kelvin‐Helmholtz instability dynamics observed by PMC Turbo on 12 July 2018: 1. Secondary instabilities and billow interactions

CB Kjellstrand, DC Fritts, AD Miller… - Journal of …, 2022 - Wiley Online Library
Abstract The Polar Mesospheric Cloud (PMC) Turbulence experiment performed optical
imaging and Rayleigh lidar PMC profiling during a 6‐day flight in July 2018. A mosaic of …

Self‐acceleration and instability of gravity wave packets: 3. Three‐dimensional packet propagation, secondary gravity waves, momentum transport, and transient …

DC Fritts, W Dong, TS Lund, S Wieland… - Journal of …, 2020 - Wiley Online Library
Abstract Dong et al.(2020, https://doi. org/10.1029/2019JD030691) employed a new
compressible model to examine gravity wave (GW) self‐acceleration dynamics, instabilities …

[HTML][HTML] Origin and mitigation of wind noise on balloon-borne infrasound microbarometers

S Krishnamoorthy, DC Bowman, A Komjathy… - The Journal of the …, 2020 - pubs.aip.org
High-altitude monitoring of low-frequency acoustic waves (infrasound) on Earth has
regained prominence in recent years, primarily driven by improvements in light-weight …

Self‐acceleration and instability of gravity wave packets: 2. Two‐dimensional packet propagation, instability dynamics, and transient flow responses

W Dong, DC Fritts, TS Lund… - Journal of …, 2020 - Wiley Online Library
Results of two‐dimensional and narrow three‐dimensional (2‐D and 2.5‐D) simulations of a
gravity wave (GW) packet localized in altitude and along its propagation direction employing …

Mesospheric bore evolution and instability dynamics observed in PMC Turbo imaging and Rayleigh lidar profiling over Northeastern Canada on 13 July 2018

DC Fritts, N Kaifler, B Kaifler, C Geach… - Journal of …, 2020 - Wiley Online Library
Two successive mesospheric bores were observed over northeastern Canada on 13 July
2018 in high‐resolution imaging and Rayleigh lidar profiling of polar mesospheric clouds …

Four‐dimensional quantification of Kelvin‐Helmholtz instabilities in the polar summer mesosphere using volumetric radar imaging

JL Chau, JM Urco, V Avsarkisov… - Geophysical …, 2020 - Wiley Online Library
We present and characterize in time and three spatial dimensions a Kelvin‐Helmholtz
Instability (KHI) event from polar mesospheric summer echoes (PMSE) observed with the …