Dellinger effect
Encyclopedia
The Dellinger effect is a fadeout of short-wave radios, caused by increased ionization of the D region
of the ionosphere
due to solar flare
s.
The effect was discovered by John Howard Dellinger
D region
The D region is the portion of the ionosphere that exists approximately 50 to 95 km above the surface of the Earth.Note: Attenuation of radio waves, caused by ionospheric free-electron density generated by solar radiation, is pronounced during daylight hours. Because solar radiation is not...
of the ionosphere
Ionosphere
The ionosphere is a part of the upper atmosphere, comprising portions of the mesosphere, thermosphere and exosphere, distinguished because it is ionized by solar radiation. It plays an important part in atmospheric electricity and forms the inner edge of the magnetosphere...
due to solar flare
Solar flare
A solar flare is a sudden brightening observed over the Sun surface or the solar limb, which is interpreted as a large energy release of up to 6 × 1025 joules of energy . The flare ejects clouds of electrons, ions, and atoms through the corona into space. These clouds typically reach Earth a day...
s.
The effect was discovered by John Howard Dellinger
John Howard Dellinger
John Howard Dellinger was a noted American telecommunication engineer who discovered how solar flares caused fadeouts of short-wave radios ....