Blar i Institutt for datateknologi og informatikk på forfatter "Näsholm, Sven Peter"
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High-speed Echoes in the Polar Winter Mesosphere: Infrasound as a Probable Cause
Belova, Evgenia; Barabash, Victoria; Godin, Oleg A.; Kero, Johan; Näsholm, Sven Peter; Vorobeva, Ekaterina; Pichon, Alexis Le (Peer reviewed; Journal article, 2023)We considered three events on 4 November 2015, 22 December 2016, and 12 November 2018, when the signals travelling in the polar winter mesosphere with high horizontal velocities above 300 m/s were measured by the atmospheric ... -
Probing Gravity Waves in the Middle Atmosphere Using Infrasound From Explosions
Vorobeva, Ekaterina; Assink, Jelle; Espy, Patrick Joseph; Renkwitz, Toralf; Chunchuzov, Igor; Näsholm, Sven Peter (Peer reviewed; Journal article, 2023)This study uses low-frequency, inaudible acoustic waves (infrasound) to probe wind and temperature fluctuations associated with breaking gravity waves (GWs) in the middle atmosphere. Building on an approach introduced by ...