ionized layer

См. также в других словарях:

• F layer — An ionized layer of atmosphere located approximately 90 to 240 miles (150–400 km) above the earth. This layer plays an important role in radio communications and reflects electromagnetic emissions from 1.5 to above 30 MHz. The height of the F… …   Aviation dictionary

• f1 layer — ˈef|wən noun Usage: usually capitalized F : the lower and usually less densely ionized of the two layers into which the F region of the ionosphere splits in the daytime occurring at varying heights from about 90 to 150 miles above the earth s… …   Useful english dictionary

• Double layer (plasma) — This article is about the structure in plasma physics. For other uses, see Double layer. Saturnian aurora whose reddish colour is characteristic of ionized hydrogen plasma.[1] Powered by the Saturnian equivalent of (filamentary) Birkeland… …   Wikipedia

• E layer — A highly ionized part of the ionosphere with an ionization of around 105 free electrons/cm3. It is found at heights of 60 to 90 miles (100 to 150 km). Its height varies between summers and winters as well as days and nights. It is most pronounced …   Aviation dictionary

• Sodium layer — refers to a layer within the Earth s mesosphere of unbound, non ionized atoms of sodium. The altitude of this layer is usually located between 80 ndash;105 km (50 ndash;65 miles) and has a depth of about 5 km (3 miles). Atmospheric sodium below… …   Wikipedia

• Heaviside layer — A layer of ionized particles that surrounds the earth. The layer, also called the E layer, has ionization of around 106 free electrons. The layer is found at a height of around 60 to 90 miles (100 150 km), but its height varies according to the… …   Aviation dictionary

• Helicon Double Layer Thruster — The Helicon Double Layer Thruster is a prototype spacecraft propulsion engine. It was created by Australian scientist Dr. Christine Charles, based on a technology invented by Professor Rod Boswell, both of the Australian National University.The… …   Wikipedia

• F-layer — n. the highest and most strongly ionized region of the ionosphere. Etymology: F (arbitrary) + LAYER * * * Fˈ layer noun The highest layer of the ionosphere, in which radio signals are transmitted • • • Main Entry: ↑F …   Useful english dictionary

• f2 layer — ˈef|tü noun Usage: capitalized F : the upper and usually more densely ionized of the two layers into which the F region of the ionosphere splits in the daytime, occurring at varying heights from about 150 to 250 miles or more above the earth s… …   Useful english dictionary

• F layer — noun Date: 1928 the highest and most densely ionized regular layer of the ionosphere occurring at night within the F region …   New Collegiate Dictionary

• F-layer — noun the highest and most strongly ionized region of the ionosphere. Origin 1920s: arbitrary use of F + layer …   English new terms dictionary