Conveners
M2-2 Theory, Modelling and Forecasting II (DASP) | Théorie, modélisation et prévisions II (DPAE)
- Richard Marchand (University of Alberta)
This presentation will discuss Hydro-Quebec’s historical records and observations of geomagnetic disturbance. We will show how data/forecasts are used and integrated in control room operation. A real event will be presented in detail. Looking at the future, we will illustrate some gaps and research needs. The main idea of the presentation is that electricity provides relevant feedbacks to...
Bursts of enhanced electron density in the ionospheric D-region due to photoionization by X-ray radiation from solar X-ray flares leads to a fadeout of short wave signals, potentially causing a loss of high frequency radio communication in affected regions. D-region absorption is typically monitored using riometer instruments which typically operate at 30 MHz. There are well established...
In this study, we begin by presenting an overview of the methodology behind existing empirical ionospheric electron density models, including the E-CHAIM and International Reference Ionosphere (IRI). Several limitations have been identified in the methodology used to parameterize the IRI (Themens et al., 2014, 2016, and 2017a), particularly in its application at high latitudes. Using these...
