basin_prm_default Subroutine

subroutine basin_prm_default()

Uses

  • proc~~basin_prm_default~~UsesGraph proc~basin_prm_default basin_prm_default module~basin_module basin_module proc~basin_prm_default->module~basin_module module~hru_module hru_module proc~basin_prm_default->module~hru_module

leaf area index at which no evap occurs intial soil water cont expressed as a fraction of fc surface runoff lag time (days) peak rate adjustment factor in the subbasin peak rate adjustment factor for sediment routing in the channel rate factor for mineralization on active org N nitrogen uptake dist parm phosphorus uptake dist parm nitrate perc coeff (0-1) 0 = conc of nitrate in surface runoff is zero !! 1 = perc has same conc of nitrate as surf runoff phos perc coeff (0-1) 0 = conc of sol P in surf runoff is zero !! 1 = percolate has some conc of sol P as surf runoff
phos soil partitioning coef phos availability index residue decomposition coeff pestcide perc coeff (0-1) calibration coeff to control impact of the storage time constant for the reach at bankfull depth

weighting factor control relative importance of inflow rate and outflow rate in determining storage on reach n concentration coeff for tile flow and leach from bottom layer reach evaporation adjustment factor denitrification expoential rate coefficient
denitrification threshold frac of field cap frac of manure containing active colony forming units adjustment factor for subdaily unit hydrograph basetime

max daily n-fixation (kg/ha)

residue cover factor for computing frac of cover
PET adjustment (%) for Penman-Montieth and Preiestly-Taylor methods reservoir sediment settling coeff convert to fraction alpha coeff for est unit hydrograph using gamma func coeff of splash erosion varing 0.9-3.1

median particle diameter of main channel (mm) assume co2 concentration = 400 ppm

set additional parameters the uptake distribution for water is hardwired - users are not allowed to modify set maximum days to store hru, ru and channel output

Arguments

None