Aurora Flight Sciences Aircraft
An aurora ( aurorae or auroras), also commonly known as the northern lights (aurora borealis) or southern lights (aurora australis), is a natural light display in Earth's sky, predominantly observed in polar regions of Earth, high-latitude regions (around the Arctic and Antarctic). Auroras display dynamic patterns of radiant lights that appear as curtains, rays, spirals or dynamic flickers covering the entire sky. Auroras are the result of disturbances in the Earth's magnetosphere caused by enhanced speeds of solar wind from coronal holes and coronal mass ejections. These disturbances alter the trajectories of charged particles in the magnetospheric Plasma (physics), plasma. These particles, mainly electrons and protons, Electron precipitation, precipitate into the upper atmosphere (thermosphere/exosphere). The resulting ionization and Excitation (magnetic), excitation of atmospheric constituents emit light of varying color and complexity. The form of the aurora, occurring w ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Meteorological Phenomena
This glossary of meteorology is a list of terms and concepts relevant to meteorology and atmospheric science, their sub-disciplines, and related fields. A B C D E F G ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]