Multi-instrument observations of large-scale atmospheric gravity waves/traveling ionospheric disturbances associated with enhanced auroral activity over Svalbard

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dc.contributor.authorKosch, Michael J.
dc.contributor.authorKatamzi-Joseph, Zama T.
dc.contributor.authorAruliah, Anasuya L.
dc.contributor.authorKjellmar, Oksavik
dc.contributor.authorJohn Bosco, Habarulema
dc.contributor.authorKirsti, Kauristie
dc.date.accessioned2022-11-02T12:36:17Z
dc.date.available2022-11-02T12:36:17Z
dc.date.issued2019-09-03
dc.description.abstractThis study reports on observations of large-scale atmospheric gravity waves/traveling ionospheric disturbances (AGWs/TIDs) using Global Positioning System (GPS) total electron content (TEC) and Fabry–Perot Interferometer’s (FPI’s) intensity of oxygen red line emission at 630 nm measurements over Svalbard on the night of 6 January 2014. TEC large-scale TIDs have primary periods ranging between 29 and 65 min and propagate at a mean horizontal velocity of ~749–761 m/s with azimuth of ~345–347° (which corresponds to poleward propagation direction). On the other hand, FPI large-scale AGWs have larger periods of ~42–142 min. These large-scale AGWs/TIDs were linked to enhanced auroral activity identified from co-located all-sky camera and IMAGE magnetometers. Similar periods, speed and poleward propagation were found for the all-sky camera (~60–97 min and ~823 m/s) and the IMAGE magnetometers (~32–53 min and ~708 m/s) observations. Joule heating or/and particle precipitation as a result of auroral energy injection were identified as likely generation mechanisms for these disturbances. © 2018 COSPAR. Published by Elsevier Ltd. All rights reserved.en_US
dc.identifier.urihttp://hdl.handle.net/10566/8140
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.subjectAtmospheric gravity wavesen_US
dc.subjectTraveling ionospheric disturbancesen_US
dc.subjectSubstormen_US
dc.subjectAuroraen_US
dc.subjectArctic polar capen_US
dc.subjectANGWINen_US
dc.titleMulti-instrument observations of large-scale atmospheric gravity waves/traveling ionospheric disturbances associated with enhanced auroral activity over Svalbarden_US
dc.typeArticleen_US

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