Recent Improvements in Radar Techniques for Investigating the Atmosphere Below Heights of 100 km.

Iain M. REID
University of Adelaide, Australia.

Since the introduction of powerful VHF atmospheric radars in the mid-1970's, considerable development of radar techniques has occurred. The development of these radars led to an increased understanding of the atmosphere, and has motivated the further development of the more common MF and HF atmospheric radars. In the past decade, great attention has been paid to interferometric techniques. Recent work has suggested some limitations to their validity when applied without reference to the assumptions underlying them. Here we briefly review some of these more recent techniques along with the more usual techniques for investigating the Lower (0-10 km) and Middle Atmosphere (10-100 km).

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