Field aligned irregularities

From Wikipedia, the free encyclopedia

The introduction to this article provides insufficient context for those unfamiliar with the subject. Please help improve the article with a good introductory style.

All or part of this article may be confusing or unclear. Please help clarify the article. Suggestions may be on the talk page. (August 2007)

Field Aligned Irregularities (FAI) are anisotropic perturbations of plasma density associated with magnetic fields. FAI are usually thought of in the context of the Earth's ionosphere, where several natural processes generate FAI in the E region and F region.