Download presentation
Presentation is loading. Please wait.
Published byScarlett Nelson Modified over 9 years ago
1
The Dangers of Solar Storms and Solar Cycles
2
For every 1 million atoms of hydrogen in the entire sun 98,000 atoms of helium 850 of oxygen 360 of carbon 120 of neon 110 of nitrogen 40 of magnesium 35 of iron 35 of silicon
3
Plasma Gas whose temperature is so hot it becomes sensitive to magnetism Ionized due to high temperatures
4
Most energy is lost to electromagnetic radiation Visible light Infrared Particle radiation also emits energy Flares and coronal mass ejections release intense concentrations of energetic particles Hazardous to astronauts in orbit and satellites
5
The sun’s magnetic field resembles that of a bar magnet Field gets distorted by two things Sun rotates more rapidly at the equator The inner parts of the sun rotate more rapidly than the surface
6
Magnetic concentration: thousands of times stronger Creates loops in the solar atmosphere Sunspots form at the points where the loops cross the surface The number of sunspots depends on the distortion of the field lines Sunspot cycle lasts approx. 11 years Field switches polarity with each cycle
7
What are They What Causes Them Etc.
8
Minimums Maximums Etc.
9
Impact on Communications Earth’s Magnetic Field Etc.
10
Overview
11
Detection and Preparation Solar and Heliospheric Observatory (SOHO) Launch date: 1995 The Solar and Heliospheric Observatory's spectrographs and cameras have provided much of what we know about space weather and solar physics today. Location in orbit (L1 position) What Where When Why How
12
Detection and Preparation Solar Terrestrial Relations Observatory (STEREO) Launch date: 2006 A pair of satellites, the Solar Terrestrial Relations Observatory, will generate the first 3-D views of solar flares and coronal mass ejections and will predict which events threaten Earth. What Where When Why How
13
Detection and Preparation Advanced Composition Explorer (ACE) What Where When Why How
14
Detection and Preparation Solar Dynamics Observatory (SDO) Launch date: 2008 NASA's Solar Dynamics Observatory will observe processes like convection and sunspot formation, with the goal of predicting solar storms weeks before they erupt. What Where When Why How
15
Detection and Preparation Solar Sentinel Launch date: 2015 Four satellites in Solar Sentinel will fly in varying orbits around the sun, monitoring a solar storm's path all the way to Earth. A fifth orbiter will watch the far side of the sun. What Where When Why How
16
Basic Calculation Related to Solar Storms Wavelength/Energy Related Speed at which CME Travels Something Related to 11.3 yr cycle Nuclear Calculation Solar Storm Magnetic Energy Required to Produce X Amps of Current in an Alaskan Pipeline Something about Increased Corrosion Rate
17
Team Gemini
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.