Browsing Institutt for fysikk by Journals "Annales Geophysicae"
Now showing items 1-8 of 8
-
Benchmarking microbarom radiation and propagation model against infrasound recordings: a vespagram-based approach
(Journal article; Peer reviewed, 2021)This study investigates the use of a vespagram-based approach as a tool for multi-directional comparison between simulated microbarom soundscapes and infrasound data recorded at ground-based array stations. Data recorded ... -
Case study of a mesospheric wall event over Ferraz station, Antarctica (62 degrees S)
(Journal article; Peer reviewed, 2011)On 16–17 July 2007 during an observational campaign at Comandante Ferraz Antarctic Station (62° S, 58° W), a mesospheric wall was observed with an airglow all-sky imager. The wave appeared like an extensive dark region in ... -
Coupling in the middle atmosphere related to the 2013 major sudden stratospheric warming
(Journal article; Peer reviewed, 2015)The previously reported observation of anomalous eastward gravity wave forcing at mesopause heights around the onset of the January 2013 major sudden stratospheric warming (SSW) over Trondheim, Norway (63° N, 10° E), is ... -
Electron precipitation characteristics during isolated, compound, and multi-night substorm events
(Peer reviewed; Journal article, 2021)A set of 24 isolated, 46 compound, and 36 multi-night substorm events from the years 2008–2013 have been analysed in this study. Isolated substorm events are defined as single expansion–recovery phase pairs, compound ... -
Migrating tide climatologies measured by a high-latitude array of SuperDARN HF radars
(Peer reviewed; Journal article, 2020)This study uses hourly meteor wind measurements from a longitudinal array of 10 high-latitude SuperDARN high-frequency (HF) radars to isolate the migrating diurnal, semidiurnal, and terdiurnal tides at mesosphere–lower-t ... -
Quasi-16-day period oscillations observed in middle atmospheric ozone and temperature in Antarctica
(Journal article; Peer reviewed, 2013)Nightly averaged mesospheric temperature derived from the hydroxyl nightglow at Rothera station (67°34' S, 68°08' W) and nightly midnight measurements of ozone mixing ratio obtained from Troll station (72°01' S, 2°32' E) ... -
Validation of SSUSI-derived auroral electron densities: comparisons to EISCAT data
(Peer reviewed; Journal article, 2021)The coupling of the atmosphere to the space environment has become recognized as an important driver of atmospheric chemistry and dynamics. In order to quantify the effects of particle precipitation on the atmosphere, ... -
Winds and tides in the mid-latitude southern hemisphere upper mesosphere recorded with the Falkland Islands SuperDARN radar
(Journal article; Peer reviewed, 2011)Meteor wind data from the first year of operation of the Falkland Islands SuperDARN radar (52 S, 59 W) are used to characterize the atmospheric tides and background winds in the upper mesosphere above the South Atlantic. ...