The relative importance of nutrient loadings and hydrographical and meteorological conditions for oxygen conditions in the Thisted Bredning, Denmark were evaluated by intensive survey and model calculations. The influence of wind speed on the vertical mixing in the unstratified shallow waters was quantified and tested in an oxygen model. The significance of oxygen consuming biological processes on the oxygen conditions were tested. By the use of a eutrophication model, the influence of local discharges of sewage on the size of the oxygen producing and oxygen consuming processes in the Thisted Bredning was calculated. Calculations showed that only a minor increase in rates of the oxygen consuming processes result in a drastic rise in the probability of oxygen depletion.
Modelling of Oxygen Depletion in Coastal Waters
A. Malmgren-Hansen, P. Mortensen, Bo Møller; Modelling of Oxygen Depletion in Coastal Waters. Water Sci Technol 1 June 1985; 17 (6-7): 967–978. doi: https://doi.org/10.2166/wst.1985.0194
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