Title

Mesosphere-ionosphere coupling processes observed in the F-layer bottom-side oscillation

Document Type

Article

Journal/Book Title/Conference

Aeronomy of the Earth's Atmosphere and Ionosphere

Volume

2

Publisher

Springer Netherlands

Publication Date

2-11-2011

First Page

163

Last Page

175

DOI

10.1007/978-94-007-0326-1_11

Abstract

During the Spread FEx campaign, under the NASA Living with a star (ILWS) program which was carried out in the South American Magnetic Equatorial region from September to November 2005, we observed formation of the bottom-type spread F and simultaneous occurrence of mesospheric gravity wave events. The events were monitored by the ionosonde, coherent radar and airglow OI 630.0 nm and OH imager. It is found that the bottom-type scattering layer has a wave form generated most probably by local gravity waves. Reverse ray-tracing of the observed gravity waves indicate their possible sources in the troposphere or thermosphere. Forward ray-tracing indicates their penetration into the ionosphere. The present work summarizes the observational evidence and results of the data analysis and discusses the mesosphere–ionosphere coupling processes.

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