ionosphere

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i·on·o·sphere

 (ī-ŏn′ə-sfîr′)
n.
A region of the earth's atmosphere where ionization caused by incoming solar radiation affects the transmission of radio waves. It extends from a height of 70 kilometers (43 miles) to 400 kilometers (250 miles) above the surface.

i·on′o·spher′ic (-sfîr′ĭk, -sfĕr′-) adj.

ionosphere

(aɪˈɒnəˌsfɪə)
n
(Astronomy) a region of the earth's atmosphere, extending from about 60 kilometres to 1000 km above the earth's surface, in which there is a high concentration of free electrons formed as a result of ionizing radiation entering the atmosphere from space. See also D region, E region, F region
ionospheric adj

i•on•o•sphere

(aɪˈɒn əˌsfɪər)

n.
the region of the earth's atmosphere between the stratosphere and the exosphere, consisting of several ionized layers and extending from about 50 to 250 mi. (80 to 400 km) above the surface of the earth.
i•on`o•spher′ic (-ˈsfɛr ɪk) adj.

i·on·o·sphere

(ī-ŏn′ə-sfîr′)
A region of the Earth's atmosphere in which atoms are often ionized (electrically charged) by radiation from the sun. The ionosphere lies mostly in the lower thermosphere, from about 43 to 250 miles (69 to 402.5 kilometers) above the Earth. Radio waves, which normally travel in a straight line, can be transmitted long distances over the curved surface of the Earth because they bounce off certain layers of the ionosphere and return to Earth instead of continuing into space.

ionosphere

That part of the atmosphere, extending from about 70 to 500 kilometers, in which ions and free electrons exist in sufficient quantities to reflect electromagnetic waves.

ionosphere

the outermost part of the earth’s permanent atmosphere, beyond the stratosphere, composed of heavily ionized molecules. It extends from about 50 to 250 miles above the surface of the earth. Cf. exosphere.
See also: Atmosphere

ionosphere

1. The upper layer of the atmosphere that lies above the stratosphere and is about 217 mi (350km) thick.
2. The area of the Earth’s atmosphere in which ionization caused by solar radiation affects the transmission of radio waves.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ionosphere - the outer region of the Earth's atmosphere; contains a high concentration of free electrons
atmosphere, air - the mass of air surrounding the Earth; "there was great heat as the comet entered the atmosphere"; "it was exposed to the air"
D region, D-layer - the lowest region of the ionosphere (35 to 50 miles up) that reflects low-frequency radio waves
Appleton layer, F layer, F region - the highest region of the ionosphere (from 90 to 600 miles up) which contains the highest concentration of free electrons and is most useful for long-range radio transmission
E layer, E region, Heaviside layer, Kennelly-Heaviside layer - a region of the ionosphere (from 50 to 90 miles up) that reflects radio waves of medium length
region, part - the extended spatial location of something; "the farming regions of France"; "religions in all parts of the world"; "regions of outer space"
Translations
ionosfääri

ionosphere

[aɪˈɒnəsfɪəʳ] Nionosfera f

ionosphere

nIonosphäre f

ionosphere

[aɪˈɒnəˌsfɪəʳ] nionosfera
References in periodicals archive ?
L1/L2 GPS receiver mitigates effect of ionospheric delay changes and supports advanced GPS processing
His research centred around ionospheric physics and radio propagation and his work saw him emigrate to Toronto, Canada, where he worked at the Department of Defence for three years.
Exploiting the facilities offered in Hanoi by the NAVIS Centre - a strategic asset for Europe, setup with FP7 EU funding - European enterprises can increase their competitiveness conducting tests of their products in a challenging multi-GNSS environment, not available in Europe, with hard ionospheric activity conditions.
The myth that a dynamo causes Earth's magnetic field is replaced by a lost formula derived by Gauss for the origin of magnetic force, which also explains the origin of Earth's ionospheric radiation belts.
Some students [researchers] are making satellites looking at the ionospheric activities.
Ashraf Crop Life, Pakistan about Bio safety studies on ionospheric bacterial population of GM crops also spoke on the occasion.
During 1977-78 he worked at NITR in the ionospheric propagation section and joined the HartRAO staff in January 1979.
5) and for ionospheric and tropospheric delays (discussed in the next paragraph).
The Radio Astronomy Group supported The National Museum of Computing's 'Daytime Astronomy' event held at Bletchley Park on 2013 August 11 with displays of equipment for observing meteor scatter, Sudden Ionospheric Disturbances, Jupiter emissions and solar radio emissions using low-cost satellite TV equipment.
These COSMIC-2 satellites will reportedly analyse GPS signals altered by atmospheric conditions and provide insights that advance the study of meteorology, ionospheric research, climatology and space weather.
By analyzing GPS signals altered by atmospheric conditions, COSMIC-2 satellites will provide insights that advance the study of meteorology, ionospheric research, climatology and space weather.
It turns out a major driver of Saturn's ionospheric environment and climate across vast reaches of the planet are ring particles located 120,000 miles [200,000 kilometers] overhead," said Kevin Baines, a co-author on the paper, based at NASA's Jet Propulsion Laboratory, Pasadena, Calif.