Modelling the manganese cycling in two stratified fjords |
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| Authors: | PK Egeberg M Schaanning K Ns |
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| Institution: | P.K Egeberg, M Schaanning,K Næs |
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| Abstract: | This paper presents a parameterized model for the particulate and dissolved manganese profiles in two stratified fjords. Rates of oxidation and reduction of manganese are of the order of 1.0 × 10−15 mol cm−3 s−1. Oxidation of manganese is probably not promoted by an inorganic surface-catalyzed reaction. Cycling of manganese in the redoxcline is extensive (10–100 cycles) and is related to the input of manganese to the fjords. Calibration of the model against sediment-trap-data allow instantaneous eddy diffusion coefficients to be estimated. These are of the order of 0.01 and 1.0 × 10−4 cm2 s−1. |
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