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Modeling of fog droplet size distributions from infrared light attenuation measurements
Author(s) -
Awan M.S.,
Leitgeb Erich
Publication year - 2014
Publication title -
transactions on emerging telecommunications technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.366
H-Index - 47
ISSN - 2161-3915
DOI - 10.1002/ett.2832
Subject(s) - attenuation , exponential function , infrared , extinction (optical mineralogy) , exponential distribution , optics , wavelength , computational physics , exponential decay , distribution (mathematics) , materials science , physics , mathematics , statistics , mathematical analysis , quantum mechanics
It is demonstrated that optical attenuations recorded at 1‐min time interval in foggy environments can be modeled using two parameters of exponential distribution (hereafter EDSD) that are retrieved by standard iterative procedure. To compute two parameters of the exponential distribution, two experimental measurements are required (e.g. the measurement of liquid water content and the optical attenuations at visible wavelength) that are treated as two linear equations. A performance analysis suggests that the newly computed EDSD parameters having average values of Λ = 5.9815, N 0 = 6.0586 are well correlated with the infrared light extinction coefficients and show somewhat better agreement with the calculated attenuations. Copyright © 2014 John Wiley & Sons, Ltd.