A5007337415- Ionosphere and magnetosphere dynamics
- GNSS positioning and interference
- Earthquake Detection and Analysis
- Seismic Waves and Analysis
- Ocean Waves and Remote Sensing
- Magnetic confinement fusion research
- Advanced SAR Imaging Techniques
- Geomagnetism and Paleomagnetism Studies
- Meteorological Phenomena and Simulations
- Solar and Space Plasma Dynamics
- Atmospheric Ozone and Climate
University of Saskatchewan
2020-2023
Abstract Here, we assess to what extent the Empirical Canadian High Arctic Ionospheric Model (E‐CHAIM) can reproduce climatological variations of vertical Total Electron Content (vTEC) in sector. Within auroral oval and polar cap, E‐CHAIM is found exhibit Root Mean Square (RMS) errors vTEC as low 0.4 TECU during solar minimum summer but high 5.0 maximum equinox conditions. These represent an improvement up 8.5 over International Reference Ionosphere (IRI) same region. At sub‐auroral...
Abstract Electron density measured at high latitudes by the Swarm satellites is compared with measurements RISR incoherent scatter radars as fly radars' field of views near Resolute Bay, Canada between 2014 and 2019. More than 200 satellite passes crossing multiple radar beams are considered. Overall, Swarm‐based electron densities smaller those ∼30%. The values closer to one another , corresponding plasma frequencies 1.5 3.5 MHz. Swarm‐measured getting progressively larger densities/plasma...
In this study, predictions of the E-CHAIM ionospheric model are compared with measurements by incoherent scatter radars RISR at Resolute Bay, Canada, in northern polar cap. Reasonable coverage was available for all seasons except winter which no conclusions were drawn. It is shown that ratios model-to measured electron densities close to unity central part F layer, around its peak. This particularly evident summer daytime. Distributions wider other indicating larger number cases when...
Abstract The study investigates the relationship between Super Dual Auroral Radar Network (SuperDARN) high‐frequency (HF) radar velocities measured at intermediate ranges of 600–1,000 km from and E × B plasma drift. Two approaches are implemented. First, a 3‐h interval SuperDARN Rankin Inlet (RKN) measurements Resolute Bay incoherent scatter RISR‐C in nearly coinciding directions is investigated to show that (1) HF echoes with low (less than 200 m/s) often detected when drifts excess 1,000...
Earth and Space Science Open Archive This preprint has been submitted to is under consideration at Radio Science. ESSOAr a venue for early communication or feedback before peer review. Data may be preliminary.Learn more about preprints preprintOpen AccessYou are viewing the latest version by default [v1]Velocity of SuperDARN echoes intermediate radar rangesAuthorsAlexanderKoustoviDMichael RLuciukRobert GGilliesSydneyUllrichBionLarsonKathryn AMcwilliamsMarinaSchmidtSee all authors Alexander...
Earth and Space Science Open Archive This work has been accepted for publication in Weather. Version of RecordESSOAr is a venue early communication or feedback before peer review. Data may be preliminary. Learn more about preprints. preprintOpen AccessYou are viewing the latest version by default [v1]E-CHAIM as model Total Electron Content: Performance DiagnosticsAuthorsDavid R.ThemensiDBenjaminReidiDP. T.JayachandraniDBionLarsonAlexander V.KoustoviDSeanElvidgeAnthony...