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Space Weather - PowerPoint PPT Presentation

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

  2. The Sun

  3. Sun’s Magnetic Field

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

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

  6. Corona

  7. Coronal Hole

  8. Coronal Mass Ejections

  9. Coming Towards Earth Solar Wind and Storms

  10. 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

  11. Causes…

  12. Auroras!

  13. Collision

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

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

  16. Links to Sources • http://www.nasa.gov/mission_pages/sunearth/spaceweather/index.html#q14 • http://www.nasa.gov/mission_pages/rbsp/science/rbsp-spaceweather.html#.VBmswkikU3K • http://www.swpc.noaa.gov/NOAAscales/ • http://www.nasa.gov/mission_pages/rbsp/science/rbsp-spaceweather-human.html#.VBjPE0ikU3J • https://www.youtube.com/watch?v=7Mz2laHjVoQ • http://www.swpc.noaa.gov/alerts/archive/current_month.html • http://www.cbc.ca/news/technology/northern-lights-auroras-expected-after-2-huge-solar-flares-erupt-1.2763354

  17. Thanks!