auroral electrojet

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• electrojet — [ē lek′trō jet΄, ilek′trō jet΄; ē lek′trə jet΄, i lek′trəjet΄] n. a narrow, high velocity stream of electric energy that girdles the earth in the ionosphere above the magnetic equator and near the auroral displays …   English World dictionary

• Electrojet — An electroject is an electric current which travels around the E region of the Earth s ionosphere. There are three electrojets: above the magnetic equator (the equatorial electrojet), and near the Northern and Southern Polar Circles (the Auroral… …   Wikipedia

• electrojet — noun Date: 1955 a concentration of atmospheric electric current found in the regions of strong auroral displays and along the magnetic equator …   New Collegiate Dictionary

• electrojet — /i lek treuh jet /, n. Geophysics. a current of ions existing in the upper atmosphere, moving with respect to the surface of the earth, and causing various auroral phenomena. [1950 55; ELECTRO + JET1] * * *       streaming movement of charged… …   Universalium

• electrojet — noun an intense electric current occurring in the lower ionosphere in the region of strong auroral displays …   English new terms dictionary

• electrojet — e•lec•tro•jet [[t]ɪˈlɛk trəˌdʒɛt[/t]] n. phs a current of ions in the upper atmosphere that moves with respect to the surface of the earth and causes various auroral phenomena • Etymology: 1950–55 …   From formal English to slang

• electrojet —  ̷ ̷ˈ ̷ ̷ ̷ ̷+ˌ noun Etymology: electr + jet : an overhead concentration of electric current that is restricted laterally so that in its effects it resembles a line current, that is found in the regions of strong auroral displays and along the… …   Useful english dictionary

• High Frequency Active Auroral Research Program — HAARP is often confused with Project HARP, the High Altitude Research Project (a joint project of The Pentagon and the Canadian Department of National Defence).The High Frequency Active Auroral Research Program (HAARP) is an investigation project …   Wikipedia

• High frequency active auroral research program — 62°23′30″N 145°09′00″O / 62.39167, 145.15 …   Wikipédia en Français

• Aurora (astronomy) — Aurora Borealis redirects here. For other uses, see Aurora Borealis (disambiguation). Aurora Australis redirects here. For the ship, see Aurora Australis (icebreaker). For the book, see Aurora Australis (book). Northern lights redirects here. For …   Wikipedia

• Birkeland current — Schmatic of the Birkeland or Field Aligned Currents and the ionospheric current systems they connect to.[1] A Birkeland current is a set of currents which flow along geomagnetic field line connecting the Earth’s magnetosphere to the Earth s hi …   Wikipedia