The first reports back from what has until now been an unexplored region of the radiomagnetic spectrum, from 30 kHz and a wavelength of ten kilometers to about 30 MHz and a wavelength of ten meters, three orders of frequency magnitude just below the standard radion astronomy region. The 36 tutorials and reviews from an October conference in Paris, France consider the generation of radio waves, propagation and scattering, long wavelength radio emission from the solar system and from galactic and extragalactic sources, and radio telescopes for long wavelength observations and sounding. They include a few color plates, but are not indexed. Annotation c. Book News, Inc., Portland, OR (booknews.com)
Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 119.
The spectacular success of Earth-based radio astronomy is due to several factors. A broad atmospheric window of more than four orders-of-magnitude in frequency extends from ~30 MHz (wavelength 10 m), where ionospheric distortions and opacity begin to become a problem, to ~300 GHz (wavelength 1 mm), where atmospheric absorption becomes excessive, even from high mountain sites. This radio window reveals a rich variety of astrophysical phenomena. Also key to the success of radio astronomy has been the development of interferometry which provides high resolution, even at long wavelengths, without the construction of impossibly large and expensive single dish radio telescopes.