4-8 July 2016
Kramer Law building
Africa/Johannesburg timezone
The Proceedings of SAIP2016 published on 24 December 2017
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Thermospheric neutral density observations by radar

Presented by Prof. Michael KOSCH on 6 Jul 2016 from 15:20 to 15:40
Type: Oral Presentation
Session: Space Science
Track: Track D2 - Space Science

Abstract

Radars are sensitive to backscatter from the ionosphere, i.e. the charged component of the upper-atmosphere, and are normally completely insensitive to the thermosphere, i.e. the dominant neutral component of the upper-atmosphere. Manipulation of the ion-momentum equation permits the ion-neutral collision frequency to be estimated and hence from this the neutral density. We show examples for two basic geometries: (1) Parallel to the magnetic field using incoherent scatter radar, and (2) Perpendicular to the magnetic field using coherent scatter radars. Applications include the long-term trend due to climate change and the short-term variability due to solar storms.

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Location: Kramer Law building
Address: UCT Middle Campus Cape Town
Room: 5B


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