<P> The ionosphere ( / aɪ ˈɒnəˌsfɪər / ) is a region of Earth 's upper atmosphere , from about 60 km ( 37 mi ) to 1,000 km ( 620 mi ) altitude , that includes the thermosphere and parts of the mesosphere and exosphere . It is ionized by solar radiation , plays an important part 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 the Earth . </P>
<P> The ionosphere ( / aɪ ˈɒnəˌsfɪər / ) is a region of Earth 's upper atmosphere , from about 60 km ( 37 mi ) to 1,000 km ( 620 mi ) altitude , that includes the thermosphere and parts of the mesosphere and exosphere . It is ionized by solar radiation , plays an important part 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 the Earth . </P>
where is the ionosphere located in the atmosphere
where is the ionosphere located in the atmosphere
upper atmosphere , from about 60 km ( 37 mi ) to 1,000 km ( 620 mi ) altitude
upper atmosphere , from about 60 km ( 37 mi ) to 1,000 km ( 620 mi ) altitude