Analysis of the water column oxic/anoxic interface in the Black and Baltic seas with a numerical model |
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| Authors: | EV Yakushev F Pollehne G Jost I Kuznetsov B Schneider L Umlauf |
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| Institution: | 1. Shirshov Institute of Oceanology RAS, Southern Branch, Gelendzhik-7, Krasnodarskii Kray, 353467, Russia;2. Baltic Sea Research Institute Warnemuende, Seestrasse 15, 18119 Rostock, Germany |
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| Abstract: | A 1D hydrophysical-biogeochemical model was developed to study the cycling of the main elements in the pelagic redox layer in seas with anoxic conditions. The formation and decay of organic matter; the reduction and oxidation of nitrogen, sulfur, manganese, and iron species; and the transformation of phosphorus species were parameterized. Temporal and spatial developments of the model's variables were described by a system of horizontally integrated vertical diffusion equations for non-conservative substances. The calculated spatial and temporal distributions of the above-mentioned parameters were in good agreement with observed vertical distribution patterns of these processes. |
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| Keywords: | Biogeochemical modelling Oxic/anoxic interface Redox processes Anoxic conditions Baltic Sea Black Sea |
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