Browsing NTNU Open by Author "Vorobeva, Ekaterina"

Now showing items 1-5 of 5

    • Benchmarking microbarom radiation and propagation model against infrasound recordings: a vespagram-based approach 

      Vorobeva, Ekaterina; De Carlo, Marine; Le Pichon, Alexis; Espy, Patrick Joseph; Näsholm, Sven Peter (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 ...

    • Estimating stratospheric polar vortex strength using ambient ocean-generated infrasound and stochastics-based machine learning 

      Vorobeva, Ekaterina; Eggen, Mari Dahl; Midtfjord, Alise Danielle; Benth, Fred Espen; Hupe, Patrick; Brissaud, Quentin; Orsolini, Yvan Joseph Georges Emile G.; Näsholm, Sven Peter (Journal article; Peer reviewed, 2024)
      There are sparse opportunities for direct measurement of upper stratospheric winds, yet improving their representation in subseasonal-to-seasonal prediction models can have significant benefits. There is solid evidence ...

    • Exploiting infrasound to probe the dynamics of the middle atmosphere 

      Vorobeva, Ekaterina (Doctoral theses at NTNU;2023:214, Doctoral thesis, 2023)
      This doctoral thesis examines the middle atmosphere (30 - 80 km altitude) using ground-based observations of low-frequency sound waves (infrasound). By exploiting infrasound waves, the thesis aims to increase observations ...

    • 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 ...