7.7. Questions and Tasks
141
OUTFLOWS:
Sediment_Remineralization
Delay (Sediment_Rate_of_Carbon, 2, 0)
Surface_Ct(t) = Surface_Ct(t-dt) + (Air_Sea_Exchange +
Upwelled_Carbon-Downwelled_Carbon-PartC-CaC03) *
dt
INIT Surface_Ct
219
INFLOWS:
Air_Sea_Exchange
Piston_Velocity*((Atmospheric_C02 /1e6)((Surface_Ct /1e5)*AlphaO))
Upwelled_Carbon = (Bottom_Ct /3400)*Upwelling_Rate
OUTFLOWS:
Downwelled_Carbon = (Surface_Ct /100)*Upwelling_Rate
PartC = (Part_N03*C:N03_Ratio)
CaC03 = 15
Atmospheric_PC02 = (Atmospheric_C02 /1e6 /3 .16e-2)*le6
Piston_Velocity = 3e3
Upwelling_Rate = 130
Fe Module
Bottom_Fe(t) = Bottom_Fe(t-dt) + (Downwel1ed_Fe +
Part_Fe +
Fe_Remineralization + Fe_CaC03-Upwelled_FeSediment_Rate_of_Iron-Advection) * dt
INIT Bottom_Fe = 4 .08e-8
INFLOWS:
Downwelled_Fe = (Surface_Fe /100)*Upwelling_Rate
Part_Fe = Part_N03*Fe:N03_Ratio
Fe_Remineralization = delay(Sediment_Rate_of_Iron,2 ,O)
Fe_CaC03 = N_CaC03*Fe:N03_Ratio
OUTFLOWS:
Upwelled_Fe = (Bottom_Fe /3400)*Upwelling_Rate
Sediment_Rate_of_Iron = (Part_N03*Fe :N03_Ratio)* .01
Advection = Aeolian_Fe_Flux
Sedimentary_Felt) = Sedimentary_Fe(t-dt) +
(Sediment_Rate_of_Iron-Fe_Remineralization) * dt
INIT Sedimentary_Fe = °
INFLOWS:
Sediment_Rate of Iron
(Part_N03*Fe :N03_Ratio) * .01