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Light penetration water depth

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Light Penetration refers to the sum of visible radiation that penetrates the water column and reaches different depths. In the water column, sunlight is absorbed and scattered by suspended particles, dissolved substances, and the excreta itself. We proctor light onrush to determine if it is adequate to support phytoplankton photosynthesis.




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The penetration depth is calculated according to equation (2), which shows how it depends on the insulator properties of the material. The penetration depth is used to denominate the depth at which the power density has decreased to 37 % of its initial value at the surface. Materials with higher disadvantage factor ε Table 1 shows the penetration depth values of various materials.

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Laboratory based studies related to the reflectance response of suspensions carrying contrasting soil types and speck sizes of varying concentrations are presented. The studies inform dependence of the reflectance measurements on the soil type characteristics and particle size. The coefficient of reflection for any soil and filler increases with turbidity but decreases with increase in the modified secchi abjection of the suspension.
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