1999
DOI: 10.1175/1520-0426(1999)016<1854:orodc>2.0.co;2
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On Rayleigh Optical Depth Calculations

Abstract: Many different techniques are used for the calculation of Rayleigh optical depth in the atmosphere. In some cases differences among these techniques can be important, especially in the UV region of the spectrum and under clean atmospheric conditions. The authors recommend that the calculation of Rayleigh optical depth be approached by going back to the first principles of Rayleigh scattering theory rather than the variety of curvefitting techniques currently in use. A survey of the literature was conducted in … Show more

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Cited by 615 publications
(466 citation statements)
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References 23 publications
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“…Three COT values (1, 5, and 10) were considered in this study, and the contributions from the underlying surface and the aerosol and molecule layers are negligible (Coddington et al, 2010;Goloub et al, 2000). The Rayleigh optical thickness for different wavelengths was set according to the results of Bodhaine et al (1999). The solar zenith angle was assumed to be 20 • , and the relative azimuth angle was 180 • (the sensor was in front of the sun), which avoids potential error induced by the rotation to the scattering plane (Hansen and Travis, 1974;Alexandrov et al, 2012a).…”
Section: Polder-like Observations Simulated With the Rt3 Modelmentioning
confidence: 99%
“…Three COT values (1, 5, and 10) were considered in this study, and the contributions from the underlying surface and the aerosol and molecule layers are negligible (Coddington et al, 2010;Goloub et al, 2000). The Rayleigh optical thickness for different wavelengths was set according to the results of Bodhaine et al (1999). The solar zenith angle was assumed to be 20 • , and the relative azimuth angle was 180 • (the sensor was in front of the sun), which avoids potential error induced by the rotation to the scattering plane (Hansen and Travis, 1974;Alexandrov et al, 2012a).…”
Section: Polder-like Observations Simulated With the Rt3 Modelmentioning
confidence: 99%
“…This is, in turn, computed from the equations provided by Peck and Reeder (1972). The King correction factor for the depolarization of air molecules is computed separately for each constituent using the results from Bates (1984) and combined into a dry air factor following Bodhaine et al (1999). The standard air CO 2 concentration is scaled to a constant value of 375 ppmv.…”
Section: Molecular Referencementioning
confidence: 99%
“…The following expression for σ R (Bodhaine et al, 1999) has been used in this study: in which λ is the wavelength, ρ 0 = 2.547.10 19 cm −3 is the air number density at standard temperature and pressure (T 0 = 288.15 K, P 0 = 1013.25 mb), F K the King factor with a constant value of 1.06 (Lenoble, 1993) and n the air refractive index. The number density ρ (h) that appears in Eq.…”
Section: Processing Of Gomos Photometer Datamentioning
confidence: 99%