NASAs Solar Dynamics Observatory recorded a beautiful movie of the - TopicsExpress



          

NASAs Solar Dynamics Observatory recorded a beautiful movie of the flare: .. The flash you just saw was extreme UV radiation, the type of radiation that ionizes the upper layers of our atmosphere. In this case, the ionizing action of the flare led to a rare magnetic crochet, measuring 17 nT at the magnetometer in Boulder, Colorado. A magnetic crochet is a ripple in Earths magnetic field caused by electrical currents flowing in air 60 km to 100 km above our heads. Unlike geomagnetic disturbances that arrive with CMEs days after a flare, a magnetic crochet occurs while the flare is in progress. They tend to occur during fast impulsive flares like this one.
Posted on: Mon, 31 Mar 2014 16:33:20 +0000

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