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Main Title Multi-Scaling and Exponential Fitting in Autocorrelation Analysis.
Author Dahai, X. ; Perry, S. G. ; Finkelstein, P. L. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab. ;Chinese Academy of Meteorological Sciences, Beijing.
Year Published 1987
Report Number EPA/600/D-87/030;
Stock Number PB87-145884
Additional Subjects Autocorrelation ; Turbulence ; Exponential density functions ; Fourier transformation ; Eddies ; Wind velocity ; Velocity measurement ; Spectra ;
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NTIS  PB87-145884 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8p
Abstract Autocorrelation functions contain information about turbulence, including eddy sizes and strengths. In order to make that information available to Gaussian diffusion models, the autocorrelation function must itself be modeled by reasonably simple mathematical terms. The paper postulates a way to describe turbulence which leads to a method for fitting the autocorrelation function by a series of exponential terms. It shows that this procedure leads to simple, mathematically and physical consistent definitions for the transformed autocorrelation and the spectra. An example is given to show the utility of the method.
Supplementary Notes Prepared in cooperation with Chinese Academy of Meteorological Sciences, Beijing.
PUB Date Free Form Jan 87
Category Codes 55B; 72B; 55C
NTIS Prices PC A02/MF A01
Primary Description 600/09
Document Type NT
Cataloging Source NTIS/MT
Control Number 709318753
Origin NTIS
Type CAT