Articles | Volume 9, issue 1
Geosci. Instrum. Method. Data Syst., 9, 223–238, 2020
Geosci. Instrum. Method. Data Syst., 9, 223–238, 2020

Research article 28 May 2020

Research article | 28 May 2020

Mesospheric winds measured by medium-frequency radar with full correlation analysis: error properties and impacts on studies of wind variance

Maude Gibbins and Andrew J. Kavanagh

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Cited articles

Beldon, C. L. and Mitchell, N. J.: Gravity wave-tidal inter- actions in the mesosphere and lower thermosphere over Rothera, Antarctica (68 S, 68 W), J. Geophys. Res., 115, D18101,, 2010. 
Brasseur, G. P. and Solomon, S.: Aeronomy of the Middle Atmosphere. Chemistry and Physics of the Stratosphere and Mesosphere, Springer, 3rd Edn., Springer, the Netherlands, 2005. 
Briggs, B. H.: The analysis of spaced sensor records by correlation techniques, in: ICSU Middle Atmosphere Program (MAP) Handbook, Vol. 13, edited by: Vincent, R. A., ICSU Scientific Committee on Solar-terrestrial Physics (SCOSTEP), Illinois, USA, 166–186, SEE N85-17452 08-46, 1984. 
Brown, W. O. J.: MF radar interferometry, PhD thesis, 312 pp., Univ. of Canterbury, Christchurch, N.Z., 1992. 
Collis, P. N. and Rietveld, M. T.: Mesospheric observations with the EISCAT UHF radar during polar cap absorption events: 1. Electron densities and negative ions, Ann. Geophys., 8, 809–824,, 1990. 
Short summary
Medium-frequency radars measure winds (between 55 and 100 km altitude). As part of their final year undergraduate project, the lead author used two radars in Antarctica to look at how the wind speed varied with the aim of identifying when the wind was too fast to be a real measurement. Instead, we discovered that the variance depends strongly on factors in the analysis technique rather than on natural features such as gravity waves, and that the Sun and geomagnetic activity play a role.