Difference between revisions of "Cosmic rays"
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(intensity is modulated by the strength of the solar wind and its magnetic field) |
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NASA says that, "... cosmic rays go up when [[solar activity]] goes down." [http://www.nasa.gov/topics/solarsystem/features/ray_surge.html] | NASA says that, "... cosmic rays go up when [[solar activity]] goes down." [http://www.nasa.gov/topics/solarsystem/features/ray_surge.html] | ||
| − | The | + | The NIPCC says that, "GCR intensity is modulated by the strength of the [[solar wind]] and its [[magnetic field]]." [http://www.sepp.org/publications/NIPCC_final.pdf] |
==Effects on the earth's weather== | ==Effects on the earth's weather== | ||
Revision as of 17:10, February 23, 2010
Cosmic rays are particles that bombard the Earth from outer space, such as:
- Galactic Cosmic Rays -- coming from outside the solar system
- Anomalous Cosmic Rays -- coming from the interstellar space at the edge of the heliopause
- Solar Energetic Particles -- associated with solar flares and other energetic solar events
NASA says that, "... cosmic rays go up when solar activity goes down." [1]
The NIPCC says that, "GCR intensity is modulated by the strength of the solar wind and its magnetic field." [2]
Effects on the earth's weather
- Cosmic rays vary the earth’s temperatures by creating more or fewer of the low, wet clouds that cool the earth.
- Cosmic rays amplify small changes in the sun’s irradiance fourfold, creating 1-2 degree C cycles in earth’s temperatures. [3]
Older terminology
The term "cosmic rays" used to include X-rays and gamma rays.
External links
- Cosmicopia at NASA/GSFC -- Cosmic Rays by Beth Jacob