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Originally posted by Arbitrageur
reply to post by K-PAX-PROT
I agree using an internet forum as a source is risky business indeed, so I don't advocate that. At best use it as food for thought or a starting point for further research.
Since you'd like a better source and I don't blame you, this might help:
Study of Unusual Radar Observations....(p21)
Also I think it's fair to say that many radar operators have a limited understanding of these AP phenomena, which might explain why they aren't considered in some cases.
Anomalous propagation (AP)/forward scatter
It is possible for special AP conditions to produce the appearance of discrete targets in the air, even without the radar being refracted to pick up surface targets such as ships. If there is an elevated layer of sharp refractive index discontinuity (i.e., abnormal changes in temperature and humidity across a narrow layer) then a radar beam impinging in the layer at a shallow or grazing angle can be reflected as from a mirror. This process is called forward scattering...edit on 19-8-2012 by Arbitrageur because: clarification
James Edward McDonald received his Ph.D. in physics from Iowa State University in 1951, then worked there as an assistant professor in meteorology. He was a research physicist in the University of Chicago's department of meteorology (1953-54). In 1954 he joined the University of Arizona faculty, first as an associate professor (1954-56), then as a full professor in the department of meteorology (1956-71). McDonald was also a senior physicist in the University's Institute of Atmospheric Physics, and served as both associate director (1954-56) and scientific director (1956-57). He also advised numerous federal agencies, including the National Science Foundation, The Office of Naval Research, the National Academy of Sciences, and the Environmental Science Service Administration.
I never said they were and I'm sure many aren't.
Originally posted by K-PAX-PROT
not ALL UFO radar cases are atmospheric anomalies, that is and was my point right from my OP in this thread