[HTML][HTML] Polarization dependency of transverse scattering and collisional coupling to the ambient atmosphere from meteor trails—Theory and observations

G Stober, R Weryk, D Janches, ECM Dawkins… - Planetary and Space …, 2023 - Elsevier
Quantitative analyses of transverse scatter meteors to derive physically consistent solutions
of the ambipolar diffusion coefficient, electron line density, and initial trail radius have been …

Modelling the entry of meteoroids

O Popova, J Borovicka… - Meteoroids. Sources of …, 2019 - cambridge.org
Meteoroids represent the material remaining from the formation of the solar system and carry
unique information on the earliest forming solids. They enable the study of the structure and …

The Local Time and Altitude Dependences of Long‐Lived Nonspecular Meteor Echoes With Weak Magnetic Aspect Sensitivity at Low Latitudes

Y Wang, G Li, Z Xiao - Journal of Geophysical Research …, 2022 - Wiley Online Library
Long‐lived nonspecular meteor echoes backscattered from meteor trail nonfield‐aligned
irregularities (NFAIs) were observed sporadically at high latitudes. In this study, we employ …

Formation of plasma around a small meteoroid: 1. Kinetic theory

YS Dimant, MM Oppenheim - Journal of Geophysical Research …, 2017 - Wiley Online Library
Every second, millions of submilligram meteoroids enter the Earth's atmosphere producing
dense plasmas. Radars easily detect these plasmas, and researchers use this data to …

First 3‐D simulations of meteor plasma dynamics and turbulence

MM Oppenheim, YS Dimant - Geophysical Research Letters, 2015 - Wiley Online Library
Millions of small but detectable meteors hit the Earth's atmosphere every second, creating
trails of hot plasma that turbulently diffuse into the background atmosphere. For over 60 …

Nonspecular meteor trail altitude distributions and durations observed by a 50 MHz high‐power radar

G Sugar, MM Oppenheim, E Bass… - Journal of Geophysical …, 2010 - Wiley Online Library
High‐power large‐aperture (HPLA) radars frequently observe nonspecular meteor trail
echoes that result from plasma turbulence driven by the intense pressure gradients on the …

A radio science perspective on long‐duration meteor trails

A Malhotra, JD Mathews… - Journal of Geophysical …, 2007 - Wiley Online Library
Nonclassical radar meteor echoes or range spread trail echoes (RSTEs), lasting from tens of
seconds to over 15 min, have been a subject of considerable interest and speculation in the …

On the validity of the ambipolar diffusion assumption in the polar mesopause region

AP Ballinger, PB Chilson, RD Palmer… - Annales …, 2008 - angeo.copernicus.org
The decay of underdense meteor trails in the polar mesopause region is thought to be
predominantly due to ambipolar diffusion, a process governed by the ambient temperature …

Day to night variation in meteor trail measurements: Evidence for a new theory of plasma trail evolution

MM Oppenheim, G Sugar, E Bass… - Geophysical …, 2008 - Wiley Online Library
A recent theory of meteor trail plasma diffusion made the prediction that meteors will
generate more and longer lasting non‐specular echoes at night than during the day. This …

Ionospheric irregularities: frontiers

DL Hysell, HC Aveiro, JL Chau - Modeling the ionosphere …, 2014 - Wiley Online Library
There are several thermosphere ionosphere models with bottom boundaries somewhere in
the middle atmosphere. Achieving a true whole atmosphere modeling capability requires the …