title: Hyperspectral all-sky imaging of auroras.
abstract: A prototype auroral hyperspectral all-sky camera has been constructed and tested. It uses electro-optical tunable filters to image the night sky as a function of wavelength throughout the visible spectrum with no moving mechanical parts. The core optical system includes a new high power all-sky lens with F-number equal to f/1.1. The camera has been tested at the Kjell Henriksen Observatory (KHO) during the auroral season of 2011/2012. It detects all sub classes of aurora above ~½ of the sub visual 1kR green intensity threshold at an exposure time of only one second. Supervised classification of the hyperspectral data shows promise as a new method to process and identify auroral forms.
authors.affiliation: The University Centre in Svalbard (UNIS), N-9171 Longyearbyen, Norway. fred@unis.no
authors.forename: Fred
authors.initials: F
authors.lastname: Sigernes
authors.forename: Yuriy
authors.initials: Y
authors.lastname: Ivanov
authors.forename: Sergey
authors.initials: S
authors.lastname: Chernouss
authors.forename: Trond
authors.initials: T
authors.lastname: Trondsen
authors.forename: Alexey
authors.initials: A
authors.lastname: Roldugin
authors.forename: Yury
authors.initials: Y
authors.lastname: Fedorenko
authors.forename: Boris
authors.initials: B
authors.lastname: Kozelov
authors.forename: Andrey
authors.initials: A
authors.lastname: Kirillov
authors.forename: Ilia
authors.initials: I
authors.lastname: Kornilov
authors.forename: Vladimir
authors.initials: V
authors.lastname: Safargaleev
authors.forename: Silje
authors.initials: S
authors.lastname: Holmen
authors.forename: Margit
authors.initials: M
authors.lastname: Dyrland
authors.forename: Dag
authors.initials: D
authors.lastname: Lorentzen
authors.forename: Lisa
authors.initials: L
authors.lastname: Baddeley
mesh_terms: D001256:Astronomy / Q000295:instrumentation*; D001272:Atmosphere; D002138:Calibration; D054025:Lasers, Dye; D007909:Lenses; D050866:Liquid Crystals; D008962:Models, Theoretical; D010781:Photography / Q000295:instrumentation* / Q000379:methods; D013057:Spectrum Analysis / Q000295:instrumentation* / Q000379:methods