Space Weather Alice Hirsh International Studies and Economics College of Arts and Sciences.

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Presentation transcript:

Space Weather Alice Hirsh International Studies and Economics College of Arts and Sciences

The Sun

Sun’s Magnetic Field

Sun Spots Cooler areas of the surface Magnetic fields from within the sun emanate from them

Solar Prominences Loops of Plasma Follows Sun’s magnetic field lines Eventually snaps, spewing plasma into space Sometimes, towards Earth

Corona

Coronal Hole

Coronal Mass Ejections

Coming Towards Earth Solar Wind and Storms

Earth’s Protection: Magnetosphere Magnetic Lines emanate from North and South magnetic poles (different from geographic poles on most maps) Stretches beyond the atmosphere Charged Particles From Sun Collide with Magnetosphere

Causes…

Auroras!

Collision

Problems Astronauts Satellites GPS Radio Wave Black Outs (solar flares) Electric Grid Airplane Navigation Underwater Cables

Yesterday’s Space Weather NOAA Warning – CME’s Sept 9, 10. From same sunspot – Expected impact Sept. 13

Links to Sources er/index.html#q14 er/index.html#q14 spaceweather.html#.VBmswkikU3K spaceweather.html#.VBmswkikU3K spaceweather-human.html#.VBjPE0ikU3J spaceweather-human.html#.VBjPE0ikU3J html html auroras-expected-after-2-huge-solar-flares-erupt auroras-expected-after-2-huge-solar-flares-erupt

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