!----------------------------------------------------------------------- &namp5zlim ! parameters for nutrient limitations PISCES QUOTA - ln_p5z !----------------------------------------------------------------------- concnno3 = 3e-6 ! Nitrate half saturation of nanophytoplankton concpno3 = 1e-6 concdno3 = 4E-6 ! Phosphate half saturation for diatoms concnnh4 = 1.5E-6 ! NH4 half saturation for phyto concpnh4 = 4E-7 concdnh4 = 2E-6 ! NH4 half saturation for diatoms concnpo4 = 3E-6 ! PO4 half saturation for phyto concppo4 = 1.5E-6 concdpo4 = 4E-6 ! PO4 half saturation for diatoms concnfer = 3E-9 ! Iron half saturation for phyto concpfer = 1.5E-9 concdfer = 4E-9 ! Iron half saturation for diatoms concbfe = 1.E-11 ! Half-saturation for Fe limitation of Bacteria concbnh4 = 1.E-7 ! NH4 half saturation for phyto concbno3 = 5.E-7 ! Phosphate half saturation for diatoms concbpo4 = 1E-7 ! Phosphate half saturation for bacteria xsizedia = 1.E-6 ! Minimum size criteria for diatoms xsizephy = 1.E-6 ! Minimum size criteria for phyto xsizepic = 1.E-6 xsizern = 1.0 ! Size ratio for nanophytoplankton xsizerp = 1.0 xsizerd = 4.0 ! Size ratio for diatoms xksi1 = 2.E-6 ! half saturation constant for Si uptake xksi2 = 20E-6 ! half saturation constant for Si/C xkdoc = 417.E-6 ! half-saturation constant of DOC remineralization caco3r = 0.35 ! mean rain ratio oxymin = 1.E-6 ! Half-saturation constant for anoxia /