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Planetary Waves and Their Impact on the Mesosphere, Thermosphere, and Ionosphere
Large-scale planetary waves (also known as Rossby waves), such as the Quasi-two day wave, 5 day wave and Kelvin wave, play crucial roles in coupling the lower and middle atmosphere to the mesosphere, thermosphere and ionosphere. Upward propagation and global structure of planetary waves in the stratosphere and mesosphere are affected by the zonal mean winds. Baroclinic or barotropic instability of the background mesospheric winds can amplify the waves en route to the upper atmosphere. Fast traveling planetary waves with deep ...
Yue, Jia; Lieberman, Ruth; Chang, Loren;
Published by: Published on:
YEAR: 2021   DOI: 10.1002/9781119815631.ch10
barotropic instability; E-region dynamo electric fields; F-region dynamo electric fields; Kelvin waves; mesosphere; planetary waves; plasma drift; thermosphere-ionosphere system
An empirical model of the drift velocity of equatorial plasma depletions
The Far-Ultraviolet Imager on the IMAGE spacecraft (IMAGE-FUV) has been used to observe O+plasma depletions in the post-sunset equatorial ionosphere. Small-scale density irregularities associated with such depletions are believed to adversely affect trans-ionospheric radio signals such as GPS. Prediction of the motion of these plasma depletions is a necessary component of the ability to forecast the occurrence of such radio signal interference. An automated method has recently been developed to identify and tra ...
Published by: Journal of Geophysical Research: Space Physics Published on: 12/2012
YEAR: 2012   DOI: 10.1029/2012JA018091