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TitreThe genesis and development of space weather forecast in Canada
AuteurLam, H -L
SourceIR3 Infrastructure Resilience Risk Reporter vol. 1, issue 5, 2016 p. 10-25
Année2016
Séries alt.Secteur des sciences de la Terre, Contribution externe 20160134
Lang.anglais
Mediaen ligne; numérique
Formatspdf
Sujetsgéomagnétisme; orages magnétiques; champ magnétique; stations de base de lecture magnétiques; géologie extraterrestre; géophysique
ProgrammeNord du Canada, risque géoscience, Géoscience pour la sécurité publique
Résumé(disponible en anglais seulement)
Critical infrastructures such as power grids and pipelines on ground, and satellites in space are subject to the impact of space weather. Power lines and pipelines are long grounded conductors where geomagnetically induced currents (GICs) can flow and cause damages as a consequence of geomagnetic disturbances. Satellite surface can be penetrated by energetic particles that can result in spacecraft operational anomalies and even failures as a consequence of enhancement of particle fluxes during a space weather episode. The resilience of critical infrastructures can be dependent upon space weather forecasts that alert stakeholders to take preventative measures to save-guard their systems. Space weather forecast in Canada has its beginning in simple one-zone magnetic forecast dispatched by the Ottawa Magnetic Observatory in the 1970s. The Ottawa observatory is linked to the very first Canadian magnetic observatory established in Toronto in the 1830s, and the magnetic legacy of Canada can be traced to early explorers who took magnetic measurements in Canada. The humble beginning of the Ottawa Magnetic Observatory issuing simple forecasts has blossomed into a Canadian Space Weather Forecast Centre (CSWFC), which is a full-fledged Regional Warning Center (RWC Canada) of the International Space Environment Service (ISES). This article presents a history of geomagnetism in Canada from early explorers to the present day magnetic network, and an account of the evolution of space weather forecasting from the early day forecasts by the Ottawa Magnetic Observatory to the present day forecasts by CSWFC.
Résumé(Résumé en langage clair et simple, non publié)
La météo spatiale fait référence aux conditions dynamiques du soleil et de l'environnement spatial qui peuvent influer sur les infrastructures essentielles. RNCan exploite le Centre canadien de météo spatiale et étudie les effets de la météo spatiale sur les systèmes d'alimentation électrique, les pipelines, les satellites, les installations de communications radio et le FGISM pour aider l'industrie canadienne à comprendre et à atténuer les effets de la météo spatiale. Ce document décrit la genèse et le développement du Centre canadien de météo spatiale.
GEOSCAN ID299090