Download or read book Project Aurora Iii Part I Some Evidence for the Occurrence of High Electron Densities in the Auroral D and E Region Part Ii an Analysis of the Statistics of Simultaneous Auroral Echoes written by Walter A. Flood and published by . This book was released on 1965 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part I: A-scope photographs of simultaneous auroral echoes at 49.7, 143.5 and 226 Mcs using scaled antenna systems with five degree beamwidths are presented and are discussed. The photographs clearly show that on occasion the 49.7 and 143.5 Mcs echoes can arise at disparate ranges. These photographs are interpreted as indicating the presence of local electron densities (occupying regions which subtend angles smaller than the five degree system beamwidth) in excess of 2 x 10,000,000 electrons/cu cm. Consequently single scatter theory cannot always be applied to the analysis of auroral echoes at frequencies as low as 50 Mcs. Part II: The amplitude distribution and wavelength dependence of simultaneous auroral echoes at 49.7, 143.5 and 226 Mcs have been studied. Amplitude distributions are very closely Rayleigh distributed. The data are interpreted as indicating a wavelength dependence which varies as lambda to 3.5 power for frequencies between 50 Mcs and 143.5 Mcs and lambda to 6.5 power for frequencies between 143.5 and 226 Mcs. During conditions of strong auroral activity, auroral absorption may tend to mask the wavelength dependence at the two lower frequencies. (Author).
Download or read book Project Aurora III written by Walter A. Flood and published by . This book was released on 1965 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1965-10 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1965 with total page 834 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Meteorological and Geoastrophysical Abstracts written by and published by . This book was released on 1966 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering the world's literature on meteorology, climatology, atmospheric chemistry and physics, physical oceanography, hydrology, glaciology, and related environmental sciences.
Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1965 with total page 1432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book OAR Quarterly Index of Current Research Results written by United States. Air Force. Office of Aerospace Research and published by . This book was released on 1965 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book OAR Cumulative Index of Research Results written by United States. Air Force. Office of Aerospace Research and published by . This book was released on 1965 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book OAR Index of Research Results 1965 66 written by United States. Air Force. Office of Aerospace Research and published by . This book was released on 1967 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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