Ionosphere

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  • ionosphere
definition
  • A region of the earth's atmosphere, extending from about 60 to 1000 kilometers 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.
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Abstract from DBPedia
    The ionosphere (/aɪˈɒnəˌsfɪər/) is the ionized part of the upper atmosphere of Earth, from about 48 km (30 mi) to 965 km (600 mi) above sea level, a region that includes the thermosphere and parts of the mesosphere and exosphere. The ionosphere is ionized by solar radiation. It plays an important role in atmospheric electricity and forms the inner edge of the magnetosphere. It has practical importance because, among other functions, it influences radio propagation to distant places on Earth.

    電離層（でんりそう）とは、地球を取り巻く大気の上層部にある分子や原子が、紫外線やエックス線などにより電離した領域である。この領域は電波を反射する性質を持ち、これによって短波帯などの電波を用いた遠距離通信が可能である。

    (Source: http://dbpedia.org/resource/Ionosphere)