Title: Sample Input file for CIV471 2000 Term Project
   
**** Constants ****
2               nreaches           number of reaches
25.0            Temperature        Water temperature [10-30 deg C]
8.0             DO Solubility      DO solubility [mg/L]
37.0            P                  Phytoplankton chlorophyl [5-500 micro-g/L]
400.0           Is                 Solar rad. at max phy. growth [250-500 ly/day]
0.50            f                  Photoperiod [day]
0.2             aop                DO/chlorophyl alpha ratio [0.1-0.3 (mg DO)/(micro-g chl a)]
1.8             Gmax               Max. phyto. growth rate [1.5-3.0 1/d]

**** REACH 0 ****
0               Reach              Reach Number
100.0           Length             Length of reach [ft]
0.10            Velocity           Flow velocity [ft/s]
6.0             Depth              Average stream depth [ft]
25.0            Flow               Flow rate [ft^3/s]
0.90            Ka                 Reaeration coefficient [1/d]
0.50            Kd                 Effective deoxygenation rate [1/d]
0.60            Kr                 Overall loss rate [1/d]
0.45            Kn                 Nitrification rate [1/d]
-1.0            Pa                 Average gross DO prod. [mg DO/(L day)]
-1.0            R                  Respiration rate [mg DO/(L day)]
0.0             Sb                 Sediment oxygen demand [mg DO/(L day)]
0.0             Areal_Sb           Areal averaged SOD rate [0.05-5.0 g DO/(L day)]
0.0             DO_in              Additional input of DO at beginning of reach [kg/hr]
3.00            Ke                 Light extinction coefficient [0.1-5.0/m]
750.0           Ia                 Avg. daily solar rad. [500-1000 ly/day]
250             nsteps             Numer of steps to loop over
0.0             initial DO         Initial DO Deficit [mg/L]
2.0             initial CBOD       Initial CBOD concentration [mg/L]
1.0             initial NBOD       Initial NBOD concentration [mg/L]   

**** REACH 1 ****
1               Reach              Reach Number
10000.0         Length             Length of reach [ft]
2.0             Velocity           Flow velocity [ft/s]
4.0             Depth              Average stream depth [ft]
4.0             Flow               Flow rate [ft^3/s]
0.90            Ka                 Reaeration coefficient [1/d]
0.50            Kd                 Effective deoxygenation rate [1/d]
0.60            Kr                 Overall loss rate [1/d]
0.45            Kn                 Nitrification rate [1/d]
-1.0            Pa                 Average gross DO prod. [mg DO/(L day)]
-1.0            R                  Respiration rate [mg DO/(L day)]
0.0             Sb                 Sediment oxygen demand [mg DO/(L day)]
0.0             Areal_Sb           Areal averaged SOD rate [0.05-5.0 g DO/(L day)]
0.0             DO_in              Additional input of DO at beginning of reach [kg/hr]
3.00            Ke                 Light extinction coefficient [0.1-5.0/m]
750.0           Ia                 Avg. daily solar rad. [500-1000 ly/day]
250             nsteps             Numer of steps to loop over
3.0             initial DO         Initial DO Deficit [mg/L]
120.0           initial CBOD       Initial CBOD concentration [mg/L]
175.0           initial NBOD       Initial NBOD concentration [mg/L]