Module Substance

• This module is activated with the key : key_substance (in MARS) and SUBSTANCE (in CROCO)
• Advected substances may have different behavior (Definition of available type of substances) :
  • dissoved passive tracers (conservative)
  • particulate passive tracers (conservative with settling velocity)
  • particulate passive tracers whith a sediment compartment and erosion/deposition fluxes (using module of SEDIMENT)(Module Sediment MUSTANG)

  • non conservative substances

    • first order degradation : T90
    • Biological variables (using module of BIOLOGY)
    • Contaminant variables (using module MET&OR)

• Forcings of substances dynamics (or Tracer dynamics)

  • concentrations in river discharges
  • fluxes issued from outfalls
  • concentrations in rainfalls (wet settling)
  • fluxes of dry atmospheric settling