scholarly journals Spectral reflectance of solar light from dirty snow: a simple theoretical model and its validation

2013 ◽  
Vol 7 (4) ◽  
pp. 1325-1331 ◽  
Author(s):  
A. Kokhanovsky
Keyword(s):  
Absorption Coefficient ◽  
Climate Models ◽  
Mass Absorption Coefficient ◽  
Soot Concentration ◽  
Snow Layer ◽  
Snow Albedo ◽  
Mass Absorption ◽  
Simple Theoretical Model ◽  
Soot Mass

Abstract. A simple analytical equation for the snow albedo as the function of snow grain size, soot concentration, and soot mass absorption coefficient is presented. This simple equation can be used in climate models to assess the influence of snow pollution on snow albedo. It is shown that the squared logarithm of the albedo (in the visible) is directly proportional to the soot concentration. A new method of the determination of the soot mass absorption coefficient in snow is proposed. The equations derived are applied to a dusty snow layer as well.

scholarly journals Spectral reflectance of solar light from dirty snow: a simple theoretical model and its validation

2013 ◽  
Vol 7 (1) ◽  
pp. 533-550
Author(s):  
A. Kokhanovsky
Keyword(s):  
Absorption Coefficient ◽  
Climate Models ◽  
Mass Absorption Coefficient ◽  
Soot Concentration ◽  
Snow Layer ◽  
Snow Albedo ◽  
Mass Absorption ◽  
Simple Theoretical Model ◽  
Soot Mass

Abstract. A simple analytical equation for the snow albedo as the function of snow grain size, soot concentration, and soot mass absorption coefficient is presented. This simple equation can be used in climate models to assess the influence of snow pollution on snow albedo. It is shown that the squared logarithm of the albedo (in the visible) is directly proportional to the soot concentration. A new method of the determination of the soot mass absorption coefficient in snow is proposed. The equations derived are applied to a dusty snow layer as well.

Simultaneous Determination of Layer Thickness, Composition, and Mass Absorption by X-Ray Diffraction

1992 ◽  
Vol 7 (4) ◽  
pp. 194-196 ◽  
Author(s):  
Stefano Battaglia ◽  
Marco Franzini ◽  
Leonardo Leoni
Keyword(s):  
Absorption Coefficient ◽  
Simultaneous Determination ◽  
Mass Absorption Coefficient ◽  
Crystalline Substance ◽  
X Ray Diffraction ◽  
Mass Thickness ◽  
Mass Absorption ◽  
Crystalline Substrate ◽  
Quantitative Results

AbstractThis paper describes a new method for the simultaneous determination of mineral composition, mass thickness and mass absorption coefficient of a thin layer of a crystalline substance deposited on a crystalline substrate.The samples were deposited on membrane disc filters, consisting of mixtures of cellulose acetate and cellulose nitrate. Quantitative results are achieved by measuring the diffraction intensity of the analyte and the attenuation of a reflection of the crystalline material supporting the deposited sample. The mean accuracy of the analysis was found to be: ≈ 3% for mass thickness, ≈ 1% for mass absorption coefficient and ≈ 4% for quantitative mineralogical determination.

Determination of the Mass Absorption Coefficient in Two-Layer Cr/Co Thin Film Systems by the X-Ray Fluorescence Method

2020 ◽  
Vol 86 (6) ◽  
pp. 1048-1052
Author(s):  
E. A. Cherniaeva ◽  
A. A. Knyazeva ◽  
E. O. Zimina ◽  
I. S. Belyakova ◽  
N. I. Mashin
Keyword(s):  
Thin Film ◽  
Absorption Coefficient ◽  
Fluorescence Method ◽  
Mass Absorption Coefficient ◽  
X Ray ◽  
Mass Absorption

scholarly journals An empirical determination of the dust mass absorption coefficient, κd, using the Herschel Reference Survey

2016 ◽  
Vol 459 (2) ◽  
pp. 1646-1658 ◽  
Author(s):  
Christopher J. R. Clark ◽  
Simon P. Schofield ◽  
Haley L. Gomez ◽  
Jonathan I. Davies
Keyword(s):  
Absorption Coefficient ◽  
Mass Absorption Coefficient ◽  
Mass Absorption ◽  
Dust Mass ◽  
Empirical Determination
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