Download or read book The Theoretical Heightb and Durations of Echoes from Large Meteors written by Laurence A. Manning and published by . This book was released on 1962 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematical theory of the durations of radio echoes from overdense trails is developed. Included is the dependence of the height distribution of ionization on meteor magnitude, velocity, zenith angle, the form of the attachment law, the height dependence of diffusion coefficient, and an adjustable relation between luminous and ionizing efficiency. It is shown that well defined attachment-free and attachmentcontrolled duration regions exist with different line-density and wavelength dependences. The transition zone is broad, and its location depends strongly on meteor velocity. Normalized duration and line-density parameters are defined in terms of which a single computer-calculated duration vs density relation good for all parameter values is plotted. Bridging formulas approximating the duration relation are derived from asymptotic expressions, and the relation between echoing height and duration or line density is presented. Equations are given relating the exponent of the wavelength to echo duration. (Author).

Download or read book Theoretical Heights and Durations of Echoes from Large Meteors written by Stanford University. Stanford Electronics Laboratories and published by . This book was released on 1962 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Theory and Analysis of Meteor Head Echoes and Meteoroids Using High resolution Multi frequency Radar Data written by Sigrid Close and published by . This book was released on 2004 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experimental Determination of Meteoric Line Densities and Attachment Rates written by Stanford University. Stanford Electronics Laboratories and published by . This book was released on 1963 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: A theory for the dependence of meteoric-echo heights and durations on meteor velocity and magnitude, and on the radio wavelength, is used to interpret experimental meteor data of a variety of types. It is shown that the data set forms a more consistent whole on the assumption of a three-body than of a two-body attachment process. No velocity dependence is found for the ratio of line density to luminosity. An attachment time constant of about 100 sec is deduced for a reference height of 95 km, and a zero-magnitude meteor is found to produce a maximum line density of about 100 electrons/m. Combination of the theoretical and experimental results makes possible calculation of the heights and durations of meteor echoes under a full range of conditions. (Author).

Download or read book Radio echo Studies of Meteors at 68 cm Wavelength Part Ii Shower Meteors written by J. V. Evans and published by . This book was released on 1964 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radio-echo observations of five nighttime meteor showers are described. The observations were made at a wavelength of 68 cm. The values for the velocities of the showers are presented and compared with values from other sources. The mean heights and trail lengths of these meteors are also given. Very precise velocity and deceleration measure ments are presented for Quadrantid and Geminid meteors. These measurements were made by directing the radar beam along the path of the approaching meteors and determining the velocity directly from the doppler shift. These precise deceleration measurements are compared with the simple meteor theory for the case of free molecular flow. It is found that in a large number of cases the theory is inadequate and that cap formation for these meteors begins at heights somewhat above 100 km. (Author).

Download or read book Meteor Science and Engineering written by Donald William Robert McKinley and published by New York ; Toronto : McGraw-Hill. This book was released on 1961 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Journal of Research written by United States. National Bureau of Standards and published by . This book was released on 1964 with total page 1354 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Journal of Research National Bureau of Standards written by United States. National Bureau of Standards and published by . This book was released on 1964 with total page 1400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Publications of the National Bureau of Standards written by United States. National Bureau of Standards and published by . This book was released on 1967 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Publications written by United States. National Bureau of Standards and published by . This book was released on 1957 with total page 1216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the Symposium on the Astronomy and Physics of Meteors Held at Smithsonian Astrophysical Observatory Cambridge Massachusetts 28 August 1 September 1961 written by and published by . This book was released on 1962 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quarterly Research Review No 3 1 October Through 31 December 1962 written by Stanford University. Stanford Electronics Laboratories and published by . This book was released on 1962 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NBS Technical Note written by and published by . This book was released on 1961 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Technical Translation written by and published by . This book was released on 1965 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Upper Layers of the Atmosphere written by Ivan Andreevich Khvostikov and published by . This book was released on 1965 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Upper Layers of the Atmosphere written by I. A. Khvostikov and published by . This book was released on 1965 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Encyclopedia of Atmospheric Sciences written by Gerald R. North and published by Elsevier. This book was released on 2014-09-14 with total page 2874 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encyclopedia of Atmospheric Sciences, Second Edition, Six Volume Set is an authoritative resource covering all aspects of atmospheric sciences, including both theory and applications. With more than 320 articles and 1,600 figures and photographs, this revised version of the award-winning first edition offers comprehensive coverage of this important field. The six volumes in this set contain broad-ranging articles on topics such as atmospheric chemistry, biogeochemical cycles, boundary layers, clouds, general circulation, global change, mesoscale meteorology, ozone, radar, satellite remote sensing, and weather prediction. The Encyclopedia is an ideal resource for academia, government, and industry in the fields of atmospheric, ocean, and environmental sciences. It is written at a level that allows undergraduate students to understand the material, while providing active researchers with the latest information in the field. Covers all aspects of atmospheric sciences—including both theory and applications Presents more than 320 articles and more than 1,600 figures and photographs Broad-ranging articles include topics such as atmospheric chemistry, biogeochemical cycles, boundary layers, clouds, general circulation, global change, mesoscale meteorology, ozone, radar, satellite remote sensing, and weather prediction An ideal resource for academia, government, and industry in the fields of atmospheric, ocean, and environmental sciences