High-speed echoes in the polar winter mesosphere: Infrasound as a probable cause

• Published in: Advances in Space Research
• Main Authors: Belova, Evgenia, Barabash, Victoria, Godin, Oleg A., Kero, Johan, Näsholm, Sven Peter, Vorobeva, Ekaterina, Le Pichon, Alexis
• Format: Article in Journal/Newspaper
• Language: English
• Published: Luleå tekniska universitet, Rymdteknik 2023
• Subjects: polar atmosphere; Arctic Space; polar mesosphere winter echoes; infrasound waves; microbaroms; energetic particle precipitation; solar wind; high-speed PMWE; Meteorology and Atmospheric Sciences; Meteorologi och atmosfärsvetenskap; Aerospace Engineering; Rymd- och flygteknik; Arctic; Esrange; Kiruna; Norway; Northern Sweden
• Online Access: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-99206; https://doi.org/10.1016/j.asr.2023.07.010

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 radar ESRAD (Chilson et al., 1999) located at Esrange, near Kiruna in north...