DMSTA Simulation Results Case: Istokpoga Period: 01/01/88 to 09/30/00
Case: Lake Istokpoga; hydrilla dominated
Input Series istok_tp Tanks in Series 2.0 Surface Area (km2) 110.0000
Simulation Period 01/01/88 thru 09/30/00 Mean Water Load  (cm/d) 1.2 Bypass Volume 0.0%
Output Period 01/01/88 thru 09/30/00 Max Water Load (cm/d) 11.5 Mean Depth (cm) 166
Startup Interval (days) 1827 Iterations 1 Inflow Conc  (ppb) 104.3 Max Depth (cm) 195
Avg Interval (days) 90 Inflow P Load (mg/m2-yr) 351 Freq Depth <  5 cm 0.0%
Parameter Set:   EMERG Outflow FWM  Conc (ppb) 50.0 Load Reduction 55%
K  (m/yr) 2.50 Sm (mg/m2)  0 Outflow C with Bypass 50.0 Time Freq Conc > 10 ppb 56%
C1 (ppb) 22.0 Sp (mg/m2) 0 95th Percentile (ppb) 57.7 Vol Freq Conc > 10 ppb 100%
C0  (ppb) 4.0 Qout Intercept 0.0 Outflow Geo. Mean (ppb) 45.1 Storage Turnover (1/yr) 0.6
Zx  (cm) 60 Qout Exponent 0.0 Outflow GM,  Q>0 (ppb) 46.4 Mean Stored P (mg/m2) 2539
Wtr Bal Error 0.0% Knet-Plug Flow (m/yr) 2.5 Storage Inc/Net Removal 44%
Mass B Error 0.0% Knet-NCSTR (m/yr) 3.2 Outfl. Seepage (cm/d/cm) 0
Calibration  Statistics for Period: 01/01/93 thru 09/30/00 Mean Mean
Count Observed Predicted Residual Resid% RSE% R2
Mean Depth (cm) 31 167.5 166.5 1.0 1% 1% 98%
Flow (cm/day) 31 0.88 0.87 0.01 2% 22% 95%
Flow-Wtd-Mean Conc (ppb) 30 61.2 53.1 8.1 15%
Geometric Mean Conc (ppb) 30 42.5 48.1 -5.6 -12% 35% 19%
Mean Conc (ppb) 30 46.9 48.5 -1.6 -3% 36% 31%
Outflow Load (mg/m2-d) 31 0.47 0.46 0.01 2% 44% 89%
Pred Q x Conc (mg/m2-d) 30 0.55 0.48 0.07 15% 55% 84%
 
 
Obs Load2 = Predicted Flow x Obs Conc
Green lines on x axis of concentration plots indicate model calibration period.
07/09/02