! BioCGT constants file
! *********************
! properties of constants:
!   name=           code name of constant
!   description=    description including unit, default=""
!   value=          value(s) separated by ";"
!   comment=        comment, e.g. how certain this value is, literature,..., default=""
! *************************************************************************************
name        = w_co2_stf
value       = 5.0
***********************
name        = zoo_cl
value       = 1.5e-6
***********************
name        = epsilon
value       = 1.0E-30
***********************
name        = lpp0
value       = 0.001e-6
***********************
name        = spp0
value       = 0.001e-6
***********************
name        = cya0
value       = 0.001e-6
***********************
name        = zoo0
value       = 1.0e-9
***********************
name        = din_min_lpp
value       = 6.0e-6
***********************
name        = din_min_spp
value       = 1.8e-6
***********************
name        = dip_min_cya
value       = 1.40625e-7
***********************
name        = r_lpp_assim
value       = 1.5
***********************
name        = r_spp_assim
value       = 0.8
***********************
name        = r_cya_assim
value       = 0.6
***********************
name        = temp_min_lpp
value       = -20
description = lower temperature limit - diatoms [C potential temperature]
***********************
name        = temp_min_spp
value       = -20
***********************
name        = temp_min_cya
value       = 20
***********************
name        = sali_min_lpp
value       = -20.0
description = lower salinity limit - diatoms [psu]
***********************
name        = sali_min_spp
value       = -20.0
description = lower salinity limit - flagellates [psu]
***********************
name        = sali_min_cya
value       = -20.0
***********************
name        = sali_max_lpp
value       = 60.0
description = upper salinity limit - diatoms [psu]
***********************
name        = sali_max_spp
value       = 60.0
description = upper salinity limit - flagellates [psu]
***********************
name        = sali_max_cya
value       = 60.0
***********************
name        = r_cop_graz
value       = 1.0
description = maximum grazing rate of copepods [1/day]
***********************
name        = r_kr1_graz
value       = 0.5
description = maximum grazing rate of small krill [1/day]
***********************
name        = r_kr2_graz
value       = 0.5
description = maximum grazing rate of large krill [1/day]
***********************
name        = food_min_zoo
value       = 1.0e-6
***********************
name        = r_cop_resp
value       = 0.03
description = loss rate: copepods to ammonium [1/day]
***********************
name        = r_kr1_resp
value       = 0.01
description = loss rate: small krill to ammonium [1/day]
***********************
name        = r_kr2_resp
value       = 0.01
description = loss rate: large krill to ammonium [1/day]
***********************
name        = r_cop_mort
value       = 0.03
description = mortality of copepods [1/day]
***********************
name        = r_kr1_mort
value       = 0.01
description = mortality of small krill [1/day]
***********************
name        = r_kr2_mort
value       = 0.01
description = mortality of large krill [1/day]
***********************
name        = temp_opt_cop
value       = 15.0
description = optimal temperature for copepod grazing [deg_C potential temperature]
***********************
name        = temp_opt_kr1
value       = 15.0
description = optimal temperature for small krill grazing [deg_C potential temperature]
***********************
name        = temp_opt_kr2
value       = 10.0
description = optimum temperature for large krill grazing [deg_C potential temperature]
***********************
name        = temp_max_cop
value       = 25.0
description = maximum temperature for copepod grazing [deg_C potential temperature]
***********************
name        = temp_max_kr1
value       = 25.0
description = maximum temperature for small krill grazing [deg_C potential temperature]
***********************
name        = temp_max_kr2
value       = 15.0
description = maximum temperature for large krill grazing [deg_C potential temperature]
***********************
name        = blanchard_beta
value       = 1.7
description = exponent to modify the shape of the temperature dependence of zooplankton grazing [1]
comment     = after Blanchard 1996
***********************
name        = r_det_rec
value       = 0.0002
***********************
name        = q10_det_rec
value       = 0.0693
***********************
name        = q10_sed_rec
value       = 0.0693
***********************
name        = w_lpp
value       = -1.0
***********************
name        = w_cya
value       = 0.
***********************
name        = w_det
value       = -3.0
***********************
name        = w_zoo
value       = -2000.0
description = vertical speed of zooplankton [m/d]
***********************
name        = w_det_sedi
value       = 2.5
description = sedimentation speed [m/d]
comment     = On one day, the lowest 2.25m of detritus transform into benthos. (=-0.5*wdz)
***********************
name        = light_opt_lpp
value       = 25.0
***********************
name        = sed_max
value       = 1.5
***********************
name        = r_biores
value       = 0.00
***********************
name        = r_nh4_nitrif
value       = 0.03
***********************
name        = k_sul_o2
value       = 2.0e3
***********************
name        = k_sul_no3
value       = 2.0e3
***********************
name        = r_det_anam
value       = 0.02
description = maximum anammox recycling rate [1/day]
***********************
name        = frac_zoo_food_to_det
value       = 0.18
description = fraction of eaten food that is directly lost to detritus [dimensionless]
***********************
name        = frac_zoo_food_to_nh4
value       = 0.18
description = fraction of eaten food that is directly lost to ammonium (respiration) [dimensionless]
***********************
name        = frac_sed_sulf
value       = 0.3
description = fraction of recycling in shallow sediments for anoxic bottom water [dimensionless]
***********************
name        = critical_stress
value       = 0.196
description = critical shear stress when erosion starts [N/m2]
comment     = 
***********************
name        = fp_cop_eating_dia
value       = 0.4875
description = food preference: how much cop likes to eat dia
***********************
name        = fp_cop_eating_fla
value       = 0.4875
description = food preference: how much cop likes to eat fla
***********************
name        = fp_cop_eating_cya
value       = 0.025
description = food preference: how much cop likes to eat cya
***********************
name        = fp_cop_eating_det
value       = 0.2
description = food preference: how much cop likes to eat det
***********************
name        = fp_kr1_eating_dia
value       = 0.29
description = food preference: how much kr1 likes to eat dia
***********************
name        = fp_kr1_eating_fla
value       = 0.29
description = food preference: how much kr1 likes to eat fla
***********************
name        = fp_kr1_eating_cya
value       = 0.02
description = food preference: how much kr1 likes to eat cya
***********************
name        = fp_kr1_eating_cop
value       = 0.2
description = food preference: how much kr1 likes to eat cop
***********************
name        = fp_kr1_eating_det
value       = 0.2
description = food preference: how much kr1 likes to eat det
***********************
name        = fp_kr2_eating_cop
value       = 0.2958799
description = food preference: how much kr2 likes to eat cop
***********************
name        = fp_kr2_eating_kr1
value       = 0.1538462
description = food preference: how much kr2 likes to eat kr1
***********************
name        = fp_kr2_eating_kr2
value       = 0.0769231
description = food preference: how much kr2 likes to eat kr2
***********************
name        = fp_kr2_eating_det
value       = 0.2
description = food preference: how much kr2 likes to eat det
***********************
name        = o2_max_suboxic
value       = 60.0e-6
description = oxygen concentration limit value for suboxic area relevant for zooplankton respiration [mol/kg]
***********************
name        = o2_min_cop
value       = 25.0e-6
description = minimum oxygen concentration for copepod growth [mol/kg]
***********************
name        = o2_min_kr1
value       = 25.0e-6
description = minimum oxygen concentration for small krill growth [mol/kg]
***********************
name        = o2_min_kr1_move
value       = 5.0e-6
description = minimum oxygen concentration for small krill movement [mol/kg]
***********************
name        = o2_min_kr2
value       = 10.0e-6
description = minimum oxygen concentration for large krill growth [mol/kg]
***********************
name        = o2_min_kr2_move
value       = 5.0e-6
description = minimum oxygen concentration for large krill movement [mol/kg]
***********************
name        = frac_resp_red_cop
value       = 1.0
description = reduced respiration of copepods under suboxic conditions [1]
***********************
name        = frac_resp_red_kr1
value       = 1.0
description = reduced respiration of small krill under suboxic conditions [1]
***********************
name        = frac_resp_red_kr2
value       = 1.0
description = reduced respiration of large krill under suboxic conditions [1]
***********************
name        = frac_po4retent
value       = 0.0
description = 
***********************
name        = light_max_cop
value       = 1.0e-10
description = maximum light intensity for copepods to stop swimming upwards [microEinstein/m2/s]
***********************
name        = light_max_kr1
value       = 1.0e-20
description = maximum light intensity for small krill to stop swimming upwards [microEinstein/m2/s]
***********************
name        = light_max_kr2
value       = 1.0e-10
description = maximum light intensity for large krill to stop swimming upwards [microEinstein/m2/s]
***********************
name        = microeinstein_per_watt
value       = 4.6
description = 1 Watt is the same as 4.6 microEinstein/second
comment     = 1 photon with 5.55e14 Hz (green light with 540 nm) gives an energy of h*f=3.681e-19 J\\So, 1 J are 2.717e18 photons, or 4.5e-6 moles of photons.\\1 mol of photons is called Einstein.
***********************
name        = motion_weight_food
value       = 3.0
description = typical length scale for the food gradient which the zooplankton will follow [m]
***********************
name        = motion_weight_oxy
value       = 1.0
description = how important the avoidance of high-oxygen areas is for zooplankton [1.0]
***********************
name        = w_rise0_kr1
value       = 1600.0
description = typical rising velocity for small krill [m/day]
***********************
name        = w_rise0_kr2
value       = 1200.0
description = typical rising velocity for small krill [m/day]
***********************
name        = w_sink0_kr1
value       = -800.0
description = typical sinking velocity for small krill [m/day]
comment     = \\negative means sinking
***********************
name        = w_sink0_kr2
value       = -600.0
description = typical sinking velocity for large krill [m/day]
comment     = negative means sinking
***********************
name        = sed_min_thiobact
value       = 1.0
description = minimum nitrogen concentration in the sediment which enables growth of sulfide-oxidizing bacteria which perform DNRA [mol/m2]
***********************
name=delete_in_add_on_no3_min_sed_denit
***********************
name=delete_in_add_on_no3_min_det_denit
***********************
name=delete_in_add_on_o2_min_det_resp
***********************
name=delete_in_add_on_r_zoo_graz
***********************
name=delete_in_add_on_r_zoo_mort
***********************
name=delete_in_add_on_r_zoo_resp
***********************
name=delete_in_add_on_temp_opt_zoo
***********************
