All-sky interferometric riometry

McKay, Derek and Fallows, Richard and Norden, Menno and Aikio, Anita and Vierinen, Juha and Honary, Farideh and Marple, Steven and Ulich, Thomas (2015) All-sky interferometric riometry. Radio Science, 50. 1050–1061. ISSN 0048-6604

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Abstract

The first implementation of a Fourier-based interferometric riometry technique for measuring electron density induced ionospheric opacity at VHF radio frequencies is presented. Unlike multibeam riometers, which form discrete beams on the sky, the interferometric technique permits all-sky sampling of incoming cosmic radio noise emissions resulting in a spatially-continuous radiogram of the entire sky. The map of the received power at each time may then be compared to the equivalent map from a “quiet day”, allowing the morphology of ionospheric absorption of cosmic radio noise to be ascertained. In this work, the high-latitude Kilpisjarvi Atmospheric Imaging Receiver Array (KAIRA) was used to carry out the first interferometric riometry measurements in late 2013, producing all-sky absorption maps of space weather related ionization in the D region.

Item Type:
Journal Article
Journal or Publication Title:
Radio Science
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1900/1902
Subjects:
ID Code:
75797
Deposited By:
Deposited On:
26 Nov 2015 08:50
Refereed?:
Yes
Published?:
Published
Last Modified:
04 Jul 2020 02:53