rm can last as long as two to two and a half days. Until the early 1990's it was believed that solar flares triggered geomagnetic storms. Now it is believed that Coronal Mass Ejections (CME's) set off large geomagnetic storms. CME's erupt off the active solar surface of the sun and blast magnetic plasma into space. CME's ,discovered by spacecraft in the early 1970's, extend sometimes 2 million kilometers from the suns surface. CME's occur about once each week during the solar minimum part of the cycle to solar maximum rates two or more per day. CME's often occur at the same time as Solar Flares but not always.IV. Solar Wind Solar wind is the super-sonic flow of plasma into interplanetary space from the Sun's corona. Solar Wind varies in density, velocity, temperature, and magnetic field properties. These differences are in response to shocks, waves, and turbulence that disrupt the interplanetary flow. Average velocity and density for solar winds are 468 km per second and 8.7 protons per cubic centimeter.Solar winds sometimes originate at the coronal holes. Coronal holes are regions of the sun where the corona is dark. Coronal holes are associated with "open" magnetic filed lines and are often found at the Sun's poles.V. Bastile Day Storm (July 15th - 16th)"Presentation"I have discussed the effects of space weather on humans as well as compared Space weather to terrestrial weather. The new space weatherman "IMAGE" has been introduced. Several space weather concepts have been discussed such as: Geometric storms, CME's, Solar Wind, IMF, Solar Flares, and the Bastile Day Storm. The Bastile Day Strom should have tied all of the aspects of space storms that I have discussed together. Humans are at the beginning of understanding space weather. The IMAGE spacecraft is an excellent opportunity to expand on that knowledge. With new advancements in technology our knowledge of space weather should someday surpass even are wildes...
