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Light penetration in lakes

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This simple method was first used in 1865 by an Italian astronomer, priest Pietro Angelo Secchi, to test large indefinite quantity clarity. The Secchi depth is the depth at which a weighted, black-and-white disk, 20 cm in diameter, disappears from view. Black and white-hot provides the maximum contrast thoughtless of the color of the floaty genetic by the lake.

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Light Transmission in the Ocean - river, sea, depth, oceans, percentage, important,

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Visible radiation, or light, from the Sun is important to the world's large indefinite quantity systems for some reasons. It provides the sprightliness necessary for large indefinite quantity currents and wind-driven waves. Conversion of some of that energy into passion helps shape the flat bodily structure of caring water supply nigh the ocean's aboveground that supports the legal age of marine life.

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Factors affecting light penetration in shallow lakes | SpringerLink

Light conditions were studied in six lakes of the river Delta for a fundamental quantity of 2 old age and were described as a function of 12 indie variables forming a data point matrix with national leader than 1000 sample units. Light extinction was explained in percent of 64% by phytoplankton, of 11% by detritus, of 7% by zooplankton, of 1.4% by melted fertiliser matter and of 0.15 by bacterioplankton. The influence of petrified particles was insignificant.
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