Benthic flux settings are made in the Sediment Fluxes form. After a LMC on the Sediment Fluxes sub-menu items in the Water Quality module, the user can access the Sediment Diagenesis Options and Parameters as shown in Figure 1. The top frame, Benthic Nutrient Flux Method is the option that controls EFDC's benthic flux approach. If the nutrient mass fluxes are to be specified either as constants or variables in time and space, then the diagenesis tabs are not used and are consequently disabled. If the Full Diagenesis Model (DiToro & Fitzpatrick, 1993) option is selected, then the three diagenesis tabs are visible to allow the user to specify the diagenesis parameters.
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Figure 1. Sediment nutrient flux – Sediment Diagenesis Options and Parameters.
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