Solstorm


Solstorm er eit samleomgrep på ulike reaksjonar i koronaen til sola. Solstormar fører til at store skyer med energirike, elektrisk ladde partiklar vert sende ut i det interplanetare rommet. Ofte er dei følgde av forsterkning av magnetfeltet, røntgenstråling og av auka UV-stråling. Dei kraftigaste partikkelutsendingae skjer i samband med koronautbrot, CME (av engelsk Coronal Mass Ejections) og flares.


Aktiviteten på sola, og dermed utbrot av solstormer, varierer med ein 11-årsperiode. Ein registrerer periodisiteten lettast i førekomst av solflekkar fordi mengda solflekkar kan gje eit mål på solaktiviteten.


Når partikkelskyer og stråling i ein solstorm treff jorda, vil det gje opphav til straumar og forstyrringar av magnetosfæren, polarlys, magnetiske stormar og forstyrringar i ionosfæren. Solstormar vil òg kunne påverke tekniske installasjonar i rommet og på bakken. Romvêrvarsling er eit forsøk på å føresjå verknadane av solstormane i den ytre jordatmosfæren.



Sjå òg |


  • solvinden

  • solaktivitet


Kjelder |



  • «solstorm», Store norske leksikon, 27.02.2013 

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