Variability of the nutrient runoff of the rivers of the Arctic Basin |
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| Authors: | E L Vinogradova |
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| Institution: | (1) Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia |
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| Abstract: | The spatiotemporal variability of the hydrochemical composition of the riverine runoff in nearmouth areas is presented using the example of selected rivers of the Arctic Basin. The temporal dynamics of the riverine nutrient runoff are mainly determined by the seasonal and interseasonal variations in the drainage basins. The spatial variations in the chemical composition of riverine waters in the near-mouth areas are mainly caused by the dynamics of the water flow and the river bed relief and, to a lesser degree, by biochemical processes. It is shown that the variations in the nutrient composition of the waters in near-mouth areas are comparable in magnitude to those at the river-sea geochemical barriers. |
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