Download or read book Correlation of Atmospheric Turbulence written by Lear Siegler. Instrument Division and published by . This book was released on 1964 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phase Contrast Studies of Atmospheric Turbulence Including Correlation with Photographic Resolution written by United States. Office of Ordnance Research and published by . This book was released on 1958 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Correlation Techniques for Imaging Through Atmospheric Turbulence written by Geoffrey Robert Ayers and published by . This book was released on 1989 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atmospheric Turbulence Spectra and Correlation Functions written by R. Noback and published by . This book was released on 1991 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Investigations of Optical Propagation in Atmospheric Turbulence written by Michael W. Fitzmaurice and published by . This book was released on 1971 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: The pertinent theoretical background and the results of a group of experiments conducted over 0.4- and 1.17-km near-ground horizontal ranges are presented. (1) The log-amplitude variances for HeNe (0.633 μm) and CO2 (10.6 μm) laser beams were found to have a ratio of 26.8, which is in close agreement with the predictions of Rytov-based spherical-wave theory. (2) Published measurements of the saturation level of the log-amplitude variance are reviewed and several inconsistencies noted. (3) The spatial correlation function of irradiance field was measured and found to agree with theory. The degree of correlation between different frequency beams which had traversed the same optical path was also measured and compared to theory. The data exhibited an unacceptably large scatter and did not show the wavelength dependence. (4) The log-normal, Rayleigh, and Rice probability distributions are discussed in terms of their applicability to irradiance statistics. Relatively weak 10.6 μm irradiance fluctuations were found to be equally well described by the log-normal and Rice distributions; strong fluctuations obtained at 0.488 μm were clearly best described by the log-normal distribution.
Download or read book Turbulence in the Free Atmosphere written by N. Vinnichenko and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbulence-the randomly disordered movement of volumes of air of widely varying size-is one of the characteristic features of atmospheric air flows; its investigation is essential for the solution of several theoretical and practical problems. Until recently, owing to experimental difficulties, research on turbu lence was confmed mainly to the lower half of the troposphere. Theoretical investigations have consequently been based on these data. The rapid development of high-altitude aviation and cases of aircraft encoun tering hazardous turbulence led to a sharp intensification of research on turbu lence in the atmosphere up to 10-12 km, and subsequently at greater altitudes. Such research was confined initially to the characterization of the frequency of occurrence of gusts of different speeds, their relation to altitude, geographical conditions, time of day and year, and so on. At the end of the fifties, when the required measuring equipment and experimental techniques had been developed, it became possible to investigate the complete statistical characteristics of turbu lence: the spectral densities of the velocity fluctuations of air flows, structure functions, etc. These data stimulated the further development of theory related to the specific conditions of the free atmosphere.
Download or read book On the Correlation of Wind Speed Fluctuations in the Turbulent Atmosphere written by Chen Chia-I and published by . This book was released on 1966 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: An approximate formula is derived for the relationship between wind-speed fluctuation correlation, the standard deviation, and the respective components of the wind-speed fluctuation for small gustiness. The calculation indicates that for the gustiness ordinarily encountered in investigation of the microstructure of atmospheric turbulence, the correlations of the standard quantities and the eddy components do not differ greatly. It is shown that the spatial correlation of the wind speed fluctuation can, in approximation, be replaced by the time correlation if the atmospheric turbulence is of small magnitude. The validity of the additional assumptions made regarding the atmosphere in the derivation of the formula is also discussed. (Author).
Download or read book An Investigation of Atmospheric Turbulence by Stellar Observations written by Jack Lytle Bufton and published by . This book was released on 1971 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study of the optical effects of atmospheric turbulence concentrates on the stellar observation problem. When an infinite plane wave from an incoherent stellar source is sampled by an earth-based telescope, the resultant stellar image exhibits random fluctuations in intensity, position, and size due to turbulence-induced scattering in the intervening atmosphere. One familiar aspect of this problem is the scintillation of starlight apparent to the naked eye. The central aim is to express optical statistics in terms of refractive-index structure constant which pertains to strength of turbulence along the optical path. Data is presented on stellar and meteorological observations made between fall 1968 and spring 1969 with a 0.152-meter diameter refracting telescope. Data was recorded simultaneously on the three parameters of image intensity, motion, and size. The data is interpreted in terms of the theory and used to estimate strength of turbulence. The central result is a series of profiles for refractive-index structure constant along the vertical path. These are constructed using stellar data to calculate parameters of a model.
Download or read book Correlation of Atmospheric Optical Turbulence and Meteorological Measurements written by Gail M. Tirrell Vaucher and published by . This book was released on 1989 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atmospheric Turbulence written by Adrian F. Tuck and published by OUP Oxford. This book was released on 2008-01-17 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, authored by a well-known researcher and expositor in meteorology, focuses on the direct link between molecular dynamics and atmospheric variation. Uniting molecular dynamics, turbulence theory, fluid mechanics and non equilibrium statistical mechanics, it is relevant to the fields of applied mathematics, physics and atmospheric sciences, and focuses on fluid flow and turbulence, as well as on temperature, radiative transfer and chemistry. With extensive references and glossary this is an ideal text for graduates and researchers in meteorology, applied mathematics and physical chemistry.
Download or read book Correlation of Atmospheric Optical Turbulence and Meteorological Measurements written by Gail M. Tirrell Vaucher and published by . This book was released on 1989 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atmospheric Turbulence written by O.G. Sutton and published by Routledge. This book was released on 2020-01-10 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in 1955 Atmospheric Turbulence examines dynamic meteorology and the fundamental part it plays in the overall science of meteorology. The book examines the theory of atmospheric turbulence as a more mathematically developed area than largescale motions of the atmosphere and examines its significance in economic, military and industrial spheres. The book focuses on the effect and importance of atmospheric turbulence, not only to meteorologists, but the designers of large aircraft. The book addresses the effects of turbulence and the properties of the atmosphere that can be found closer to the ground. This book will be of interest to atmospheric physicists and meteorologists.
Download or read book Statistical Analysis of Atmospheric Turbulence about a Simulated Block Building written by Sidney L. Steely and published by . This book was released on 1980 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Structure of Atmospheric Turbulence written by John Leask Lumley and published by . This book was released on 1964 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of Ionospheric Winds and Turbulence Over Puerto Rico with a Correlation Method 1 written by T. J. Keneshea and published by . This book was released on 1965 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spanwise Measurements of Vertical Components of Atmospheric Turbulence written by Robert K. Sleeper and published by . This book was released on 1990 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Auto correlation Technique for the Measurement of the Power Spectrum of Atmospheric Turbulence written by B. L. Clarkson and published by . This book was released on 1959 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
