. Elements of ecology. Ecology. Summer 201- FiG. showing stratification Fall overturn. Diagrammatic vertical section of a deep lake of the temperate region, the seasonal cycle of temperature (by permission from Limnology by Welch, 1952, McGraw-Hill Book Co.) sufficiently shallow for the seasonal effects to reach the bottom (Fig. ). In this type of situation the thorough stirring of the water during the winter produces a uniform temperature from top to bottom with a minimum value in February for the North Temperate Zone. As spring comes on, the larger supply of solar heat, often combined
. Elements of ecology. Ecology. Summer 201- FiG. showing stratification Fall overturn. Diagrammatic vertical section of a deep lake of the temperate region, the seasonal cycle of temperature (by permission from Limnology by Welch, 1952, McGraw-Hill Book Co.) sufficiently shallow for the seasonal effects to reach the bottom (Fig. ). In this type of situation the thorough stirring of the water during the winter produces a uniform temperature from top to bottom with a minimum value in February for the North Temperate Zone. As spring comes on, the larger supply of solar heat, often combined with lowered salinity due to increased run-off, causes the surface water to become lighter and tends to stabilize the upper layers. This effect is self-accelerating. By August the relatively thin stratum at the top has attained its maximum temperature. Below this layer a sharp ther-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Clarke, George L. (George Leonard), 1905-. New York, Wiley
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Keywords: ., bookcentury1900, bookpublishernewyorkwiley, booksubjectecology
