A coordinated investigation of the gravity wave breaking and the associated dynamical instability by a Na lidar and an Advanced Mesosphere Temperature Mapper …

X Cai, T Yuan, Y Zhao, PD Pautet… - Journal of …, 2014 - Wiley Online Library
The impacts of gravity wave (GW) on the thermal and dynamic characteristics within the
mesosphere/lower thermosphere, especially on the atmospheric instabilities, are still not …

Gravity wave propagation and dissipation from the stratosphere to the lower thermosphere

X Lu, AZ Liu, GR Swenson, T Li… - Journal of …, 2009 - Wiley Online Library
One‐night (28 October 2003) temperature and horizontal wind measurements by a
resonance sodium (Na) wind/temperature lidar at Maui (20.7° N, 156.3° W) and temperature …

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 …

Vertical diffusion transport of atomic oxygen in the mesopause region consistent with chemical losses and continuity: Global mean and inter-annual variability

G Swenson, Y Yee, F Vargas, A Liu - Journal of Atmospheric and Solar …, 2018 - Elsevier
This study describes the vertical diffusion velocity and eddy transport coefficient means
derived from the climatological measurements of mesospheric [O] by SABER. Fifty years …

The life cycle of instability features measured from the Andes Lidar Observatory over Cerro Pachon on 24 March 2012

JH Hecht, K Wan, LJ Gelinas, DC Fritts… - Journal of …, 2014 - Wiley Online Library
Abstract The Aerospace Corporation's Nightglow Imager (ANI) observes nighttime OH
emission (near 1.6 μm) every 2 s over an approximate 73° field of view. ANI had previously …

Role of eddy diffusion in the delayed ionospheric response to solar flux changes

R Vaishnav, C Jacobi, J Berdermann… - Annales …, 2021 - angeo.copernicus.org
Simulations of the ionospheric response to solar flux changes driven by the 27 d solar
rotation have been performed using the global 3-D Coupled Thermosphere Ionosphere …

Observations of gravity wave breakdown into ripples associated with dynamical instabilities

F Li, AZ Liu, GR Swenson, JH Hecht… - Journal of …, 2005 - Wiley Online Library
The breakdown of a high‐frequency quasi‐monochromatic gravity wave into small‐scale
ripples in OH airglow was observed on the night of 28 October 2003 at Maui, Hawaii (20.7° …

OH and OI airglow layer modulation by ducted short‐period gravity waves: Effects of trap** altitude

JB Snively, VP Pasko, MJ Taylor - Journal of Geophysical …, 2010 - Wiley Online Library
Perturbations to the OH and OI [O (1S) 557.7 nm] airglow layers by ducted gravity waves
near the Brunt‐Väisälä period are investigated using a 2‐D numerical model. Airglow …

Large wind shears and stabilities in the mesopause region observed by Na wind‐temperature lidar at midlatitude

J Yue, CY She, HL Liu - Journal of Geophysical Research …, 2010 - Wiley Online Library
Unexpected large horizontal winds and wind shears in the lower thermosphere have been
observed by rocket soundings and lidars for decades. From 4 years of the Colorado State …

MLT science enabled by atmospheric lidars

CY She, AZ Liu, T Yuan, J Yue, T Li… - Upper atmosphere …, 2021 - Wiley Online Library
With the pioneering development and deployment of different types of narrowband sodium
fluorescence lidars in Europe (1985) and North America (1990) along with subsequent …