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Modelled outflow TSS concentration depends on the soil moisture at the start of the event (continuous variable) and the vegetation type (categorical variable), as shown below.

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In spreadsheet terminology the modelled outflow TSS concentration from effectively vegetated filters is: 1.27 - 1.96 * LN(MAX(SoilMoisture, 0.09))


Here are some sample modelled outflow TP concentrations.


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Total Nitrogen


Here are some sample modelled outflow TN concentrations.

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