7 citations · 18 across the 8 of their papers we have counts for
8 papers
The PANSY Meteor Head-echo Orbit Catalogue: Continuous Antarctic Radar Observations of Southern Meteoroid Streams
Juha Vierinen, Jorge L. Chau, Koji Nishimura +7
Meteor head echoes from high-power, large-aperture radars provide pulse-resolved positions and velocities for individual micrometeoroids in a submillimeter-radius range that contri…
Extreme, transient bursts of energy in the auroral ionosphere. II. A magnetotail dipolarization event
Magnus F Ivarsen, Yukinaga Miyashita, Brian Pitzel +5
We report ground-based coherent VHF radar observations of extreme turbulent field-structures detected in coincidence with a magnetospheric substorm-associated magnetotail dipolariz…
Optical and Radar Observations of the February 2025 Falcon 9 Upper-Stage Re-entry
Juha Vierinen, Dabrowka Knach, Jorge L. Chau +9
We investigate the February 19, 2025, re-entry of a Falcon 9 upper stage using optical observations from 43 meteor cameras across central Europe together with radar detections of r…
Rogue Vertical Drafts in the Mesosphere and Lower Thermosphere: Evidence and Implications
J. L. Chau, A. Berera, D. Huyghebaert
Observational evidence of extreme vertical velocities (|w| ge 12.5 m/s and at times greater than 50 m/s) in the mesosphere and lower thermosphere (MLT), has emerged in recent years…
Kinetic renormalization of auroral turbulence
Magnus F Ivarsen, Kaili Song, Luca Spogli +19
Driven-dissipative systems often exhibit self-organization in the form of coherent dissipative structures. However, observing such critical states in natural plasmas remains elusiv…
A Characteristic Signature of Magnetospheric Wave-Particle Interactions Found in the Turbulent E-region
Magnus F Ivarsen, Yukinaga Miyashita, Jean-Pierre St-Maurice +16
Plasma waves in the magnetosphere scatter electrons, causing them to precipitate into Earth's atmosphere, imparting their temporal characteristics to diffuse auroras. In a case stu…
Eastward Transients in the Dayside Ionosphere II: A Parallel-plate Capacitor-Like Effect
Magnus F Ivarsen, Jean-Pierre St-Maurice, Glenn C Hussey +5
During the 23 April 2023 geospace storm, we observed chorus wave-driven, energetic particle precipitation on closed magnetic field lines in the dayside magnetosphere. Simultaneousl…
A Point-cloud Clustering & Tracking Algorithm for Radar Interferometry
Magnus F Ivarsen, Jean-Pierre St-Maurice, Glenn C Hussey +2
In data mining, density-based clustering, which entails classifying datapoints according to their distributions in some space, is an essential method to extract information from la…