Impacts of acoustic and gravity waves on the ionosphere

Kate Zawdie, Anna Belehaki, Meghan Burleigh, Min Yang Chou, Manbharat S. Dhadly, Katelynn Greer, Alexa J. Halford, Dustin Hickey, Pavel Inchin, Stephen R. Kaeppler, Jeff Klenzing, Viswanathan Lakshmi Narayanan, Fabrizio Sassi, Mani Sivakandan, Jonathon M. Smith, Nikolay Zabotin, Matthew D. Zettergren, Shun Rong Zhang

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Abstract

The impact of regional-scale neutral atmospheric waves has been demonstrated to have profound effects on the ionosphere, but the circumstances under which they generate ionospheric disturbances and seed plasma instabilities are not well understood. Neutral atmospheric waves vary from infrasonic waves of <20 Hz to gravity waves with periods on the order of 10 min, for simplicity, hereafter they are combined under the common term Acoustic and Gravity Waves (AGWs). There are other longer period waves like planetary waves from the lower and middle atmosphere, whose effects are important globally, but they are not considered here. The most ubiquitous and frequently observed impact of AGWs on the ionosphere are Traveling Ionospheric Disturbances (TIDs), but AGWs also affect the global ionosphere/thermosphere circulation and can trigger ionospheric instabilities (e.g., Perkins, Equatorial Spread F). The purpose of this white paper is to outline additional studies and observations that are required in the coming decade to improve our understanding of the impact of AGWs on the ionosphere.

Original languageEnglish
Article number1064152
JournalFrontiers in Astronomy and Space Sciences
Volume9
DOIs
Publication statusPublished - 15 Nov 2022

Keywords

  • ionosphere
  • plasma irregularities
  • space physics
  • thermosphere
  • waves

ASJC Scopus subject areas

  • Astronomy and Astrophysics

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