Solar radio bursts as a tool for space weather forecasting

Karl-Ludwig Klein; Carolina Salas Matamoros; Pietro Zucca

doi:10.1016/j.crhy.2018.01.005

Radio Science for Humanity/Radiosciences au service de l'humanité

Solar radio bursts as a tool for space weather forecasting
[Les sursauts radio solaires : un outil de prévision pour la météorologie de l'espace]

Karl-Ludwig Klein ^1,^2,^3,⁴ ; Carolina Salas Matamoros ^1,^2,⁵ ; Pietro Zucca ^1,^2,⁶

¹ LESIA, Observatoire de Paris, CNRS, 92190 Meudon, France
² PSL Research University, Université Pierre-et-Marie-Curie, Université Paris-Diderot, France
³ Station de radioastronomie de Nançay, Observatoire de Paris, CNRS, 18330 Nançay, France
⁴ PSL Research University, Université d'Orléans, OSUC, France
⁵ Space Research Center, University of Costa Rica, San Jose, Costa Rica
⁶ ASTRON, 7990 AA, Dwingeloo, The Netherlands

Comptes Rendus. Physique, Volume 19 (2018) no. 1-2, pp. 36-42.

Résumé
Abstract

La couronne solaire et son activité peuvent perturber l'environnement spatial de la Terre. Les éjections coronales de masse (CME) sont des instabilités à grande échelle qui conduisent à l'éjection dans l'espace interplanétaire du plasma et du champ magnétique qui le confine. D'autres perturbations viennent des particules solaires de haute énergie (SEP). Elles sont accélérées au cours de la variation explosive du champ magnétique ou par l'onde de choc qu'engendre une CME rapide. Dans cet article, on illustre comment des observations du Soleil entier en micro-ondes peuvent conduire (1) à estimer la vitesse d'une CME et son temps d'arrivée à la Terre, (2) à la prévision des événements solaires à particules qui atteignent la Terre.

The solar corona and its activity induce disturbances that may affect the space environment of the Earth. Noticeable disturbances come from coronal mass ejections (CMEs), which are large-scale ejections of plasma and magnetic fields from the solar corona, and solar energetic particles (SEPs). These particles are accelerated during the explosive variation of the coronal magnetic field or at the shock wave driven by a fast CME. In this contribution, it is illustrated how full Sun microwave observations can lead to (1) an estimate of CME speeds and of the arrival time of the CME at the Earth, (2) the prediction of SEP events attaining the Earth.

Publié le : 2018-01-01

DOI : 10.1016/j.crhy.2018.01.005

Keywords: Sun: particle emission, Sun: radio radiation, Sun: coronal mass ejection, Solar–terrestrial relations
Mot clés : Soleil : émission de particules, Soleil : émissions radio, Soleil : éjection coronale de masse, Relations Soleil-Terre

Affiliations des auteurs :

Karl-Ludwig Klein ^{1, 2, 3, 4} ; Carolina Salas Matamoros ^{1, 2, 5} ; Pietro Zucca ^{1, 2, 6}

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     author = {Karl-Ludwig Klein and Carolina Salas Matamoros and Pietro Zucca},
     title = {Solar radio bursts as a tool for space weather forecasting},
     journal = {Comptes Rendus. Physique},
     pages = {36--42},
     publisher = {Elsevier},
     volume = {19},
     number = {1-2},
     year = {2018},
     doi = {10.1016/j.crhy.2018.01.005},
     language = {en},
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Karl-Ludwig Klein; Carolina Salas Matamoros; Pietro Zucca. Solar radio bursts as a tool for space weather forecasting. Comptes Rendus. Physique, Volume 19 (2018) no. 1-2, pp. 36-42. doi : 10.1016/j.crhy.2018.01.005. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2018.01.005/

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