electrojet

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 particles in the ionosphere. The term is limited by some to those flow patterns that contain a significant proportion of neutral gases, but highly concentrated, laterally limited, electric currents are also called electrojets. The latter circulate within the ionosphere at heights of 80 to 100 km (50 to 60 miles) and complete their circuits in low latitudes and across the polar caps. They are associated with auroras and other magnetic disturbances. See aurora.

* * *


Universalium. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • électrojet — ● électrojet nom masculin Courant électrique atmosphérique. ● électrojet (expressions) nom masculin Électrojet équatorial, courant ionosphérique responsable de variations du champ magnétique terrestre à basse altitude …   Encyclopédie Universelle

  • 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

  • Électrojet équatorial — ● Électrojet équatorial courant ionosphérique responsable de variations du champ magnétique terrestre à basse altitude …   Encyclopédie Universelle

  • electrojet etching — elektrolitinis čiurkšlinis ėsdinimas statusas T sritis radioelektronika atitikmenys: angl. electrojet etching vok. elektrolythisches Strömungsätzen, n; elektrolythisches Ätzen durch Strömung, n rus. электролитическое струйное травление, n pranc.… …   Radioelektronikos terminų žodynas

  • 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 — 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

  • Equatorial electrojet — thumb|400px|A snap shot of the Earth’s magnetic field at 400 Km altitude due to the ionsopheric current systems. The equatorial intensification of the magnetic field is due to Equatorial Electrojet (EEJ). EEJ peaks over Indian ocean region at… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”