DMSTA Simulation Results Case: Okeechobee Period: 01/01/73 to 12/31/99
Case: lake/reservoir; calibrated to 1990-1999; startup period 1973-1989; observed concentrations in pelagic zone; simulation affected by intial condition
Input Series okee_mo Tanks in Series 1.0 Surface Area (km2) 1732.0000
Simulation Period 11/01/72 thru 12/31/99 Mean Water Load  (cm/d) 0.7 Mean Depth (cm) 265
Output Period 01/01/73 thru 12/31/99 Max Water Load (cm/d) 2.6 Max Depth (cm) 363
Startup Interval (days) 6270 Iterations 1 Inflow Conc  (ppb) 181.6 Freq Depth <  5 cm 0.0%
Avg Interval (days) 90 Inflow P Load (mg/m2-yr) 263 Load Reduction 54%
Parameter Set:   none Outflow FWM  Conc (ppb) 99.5 Time Freq Conc > 10 ppb 30%
K  (m/yr) 0.38 Sm (mg/m2)  0 Outflow C with Bypass 99.5 Vol Freq Conc > 10 ppb 100%
C1 (ppb) 22.0 Sp (mg/m2) 0 95th Percentile (ppb) 115.3 Storage Turnover (1/yr) 0.2
C0  (ppb) 4.0 Qout Intercept 0.0 Outflow Geo. Mean (ppb) 96.0 Mean Stored P (mg/m2) 3971
Zx  (cm) 60 Qout Exponent 0.0 Outflow GM,  Q>0 (ppb) 95.4 Storage Inc/Net Removal 82%
Wtr Bal Error 0.0% Knet-Plug Flow (m/yr) 1.0 Outfl. Seepage (cm/d/cm) 0
Mass B Error -0.1% Knet-NCSTR (m/yr) 1.6 Seepage Loss 0%
Calibration  Statistics for Period: 01/01/90 thru 12/31/99
Inflow P Conc (ppb)  = 162 Mean Mean
HLR (cm/d) = 0.4 Count Observed Predicted Residual Resid% RSE% R2
Mean Depth (cm) 41 274.2 271.2 3.0 1% 1% 99%
Flow (cm/day) 41 0.31 0.37 -0.06 -17% 58% 72%
Flow-Wtd-Mean Conc (ppb) 39 114.4 104.8 9.7 9%
Geometric Mean Conc (ppb) 39 95.8 102.8 -7.0 -7% 27% 0%
Mean Conc (ppb) 39 105.0 103.1 1.9 2% 25% 11%
Outflow Load (mg/m2-d) 41 0.35 0.39 -0.04 -10% 72% 69%
Pred Q x Conc (mg/m2-d) 41 0.37 0.39 -0.02 -5% 42% 87%
 
 
Obs Load2 = Predicted Flow x Obs Conc
Green lines on x axis of concentration plots indicate model calibration period.
10/29/03