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Durand, Loyal, Jr. (ed.) / Transactions of the Wisconsin Academy of Sciences, Arts and Letters
volume XXXI (1938)

James, Harry Raymond; Birge, Edward A.
A laboratory study of the absorption of light by lake waters,   pp. [1]-154 PDF (46.6 MB)


Page 154

154 Wisconsin Academy of Sciences, Arts, and Letters 
water under examination. The presence of the other factor or factors reduces
its actual effect by reducing the quantity of radiation on which it can operate.
The set of factor curves for any water may be computed as additive absorption
curves, as is done for Nagawicka Lake, Fig. 38, pp. 128-129. 
 8. Factor curves for color and for suspensoids may be computed in certain
cases where the regular methods cannot be applied. Three such cases are shown
in Figs. 50, 51, 52 and accompanying text. 
 9. Mean factor curves for absorption by color are given in Fig. 53 for the
spectral region 4000-7000 A and for colors 0-180. Corresponding transmission
curves are given in Fig. 54. 


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