Handbook of Geophysics and Spsce Environments. Chapter 22. Radio Astronomy

The survey is a summary of available information on radiation environments at radio frequencies about 10 m to 1 cm wavelength the Moon, the Planets, and space beyond the solar system are described. The topics presented are refraction and absorption of extraterrestrial radio waves by Earths atmosphere, radio and radar observations of the Moon and Planets, radio emission from the celestial sphere background radiation, discrete sources of continuum radio emission, and spectral-line radiation from neutral atomic hydrogen and from the hydroxyl radical OH. Author