2010
DOI: 10.5194/acp-10-10017-2010
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Comment on "Classification of aerosol properties derived from AERONET direct sun data" by Gobbi et al. (2007)

Abstract: Abstract. It is pointed out that the graphical, aerosol classification method of Gobbi et al. (2007) can be interpreted as a manifestation of fundamental analytical relations whose existance depends on the simple assumption that the optical effects of aerosols are essentially bimodal in nature. The families of contour lines in their "Ada" curvature space are essentially empirical and discretized illustrations of analytical parabolic forms in (α, α ) space (the space formed by the continuously differentiable An… Show more

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Cited by 10 publications
(3 citation statements)
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References 8 publications
(15 reference statements)
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“…7 shows a broader picture of the entire event by linking all parameters associated with the physical and optical characteristics of aerosols. In this plot, we condensate all the parameters retrieved for days 16th, 20th and 24th and lump them together into a classification scheme known as the (α, α′) grid (similar to those shown by O'Neill, 2010 andGobbi et al, 2007). This diagram is a very helpful aid to visualize the temporal evolution of the physical and optical characteristics of the entire smoke episode as it interacts with the local environment at our receptor site.…”
Section: Evolution Of Biomass Burning Smoke Over Singapore: Photometric and Lidar Data Analysismentioning
confidence: 99%
“…7 shows a broader picture of the entire event by linking all parameters associated with the physical and optical characteristics of aerosols. In this plot, we condensate all the parameters retrieved for days 16th, 20th and 24th and lump them together into a classification scheme known as the (α, α′) grid (similar to those shown by O'Neill, 2010 andGobbi et al, 2007). This diagram is a very helpful aid to visualize the temporal evolution of the physical and optical characteristics of the entire smoke episode as it interacts with the local environment at our receptor site.…”
Section: Evolution Of Biomass Burning Smoke Over Singapore: Photometric and Lidar Data Analysismentioning
confidence: 99%
“…Only the Andenes site in northern Norway, analysed in this paper, has been active since 2002. A new expansion came thanks to the stimulus of the International Polar Year (IPY) 2007-2008(Toledano et al, 2010.…”
Section: Introductionmentioning
confidence: 99%
“…less frequent sky radiances inversions with respect to direct-sun measurements) (Holben et al, 1998;. As expected, the comparison shows a better agreement of the Gobbi's graphical method with the O'Neill  values (see rigth panels in Figure 2.4) since the outputs of the Gobbi's graphical method are a subset of the products retrieved from the O'Neill algorithm (O'Neill et al, 2009). Somewhat larger discrepancies observed with respect to the sky-radiance Dubovik inversion products (see left panels in Figure 2.4) are likely due to the current Dubovik inversion output which is equivalent to what the community refers to as sub-micron fraction as opposed to the SDA retrival (O'Neill et al, 2005).…”
Section: Aerosol Classificationsupporting
confidence: 68%