| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Birkeland currents | Aerospace | 1: Electric currents linking the Earth's ionosphere with more distant regions, flowing along magnetic field lines. Named for Kristian Birkeland, a pioneer of auroral research who first proposed such currents around 1900, these currents are often associated with the polar aurora. (references) | |
| 2: Electric currents flowing along magnetic field lines and linking the Earth's ionosphere with more distant regions in the magnetosphere. These currents are often associated with the polar aurora and with geomagnetic storms and substorms. They were named after Kristian Birkeland, who first proposed such currents around 1900. (references) | |||
| Birkeland currents | Space | Electric currents linking the Earths ionosphere with more distant regions, flowing along magnetic field lines. Named for Kristian Birkeland, a pioneer of auroral research who first proposed such currents around 1900, these currents are often associated with the polar aurora and with substorms. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
