4617 20200127105916.0 CTALK-2020-0046 Chevalier, Jean-Marie Space Weather Monitoring based on GNSS at the Royal Observatory of Belgium 2019 2019-11-19 BEZACOM/ BEZACOM/ BEZACOM STCE Bergeot, Nicolas Pinat, Elisa Workshop: Interhemispheric Comparison of the Ionosphere-Plasmaphere, SANSA, Hermanus, South Africa jean-marie.chevalier@observatoire.be https://events.spacepole.be/event/80/ Contributed CTALKCONT