DMSTA Simulation Results |
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Case: |
CRESCENT |
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Period: |
10/1/1996 |
to |
8/31/2003 |
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Case: |
Crescent Lake ; 54% of inflow is ungauged; outlet backflow treated as inflow ; et rate
questioned |
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Input Series |
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CRESCENT_BACK |
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Tanks in Series |
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2.0 |
Surface Area (km2) |
70.6457 |
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Simulation Period |
10/03/91 |
thru |
08/31/03 |
Mean Water
Load (cm/d) |
3.0 |
Mean Depth (cm) |
304 |
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Output Period |
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10/01/96 |
thru |
08/31/03 |
Max Water Load
(cm/d) |
71.9 |
Max Depth (cm) |
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433 |
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Calib Period |
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10/01/97 |
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08/31/03 |
Inflow Conc (ppb) |
103.4 |
Freq Depth
< 5 cm |
0.0% |
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Startup Interval (days) |
2190 |
Iterations |
-5 |
Inflow P Load
(mg/m2-yr) |
1006 |
Load Reduction |
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17% |
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Avg Interval (days) |
30 |
Wtr Bal Error |
0.0% |
Outflow
FWM Conc (ppb) |
82.2 |
Conc Reduction |
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21% |
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Parameter Set: |
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none |
Mass B Error |
0.1% |
Outflow C with Bypass |
82.2 |
Time Freq
Conc > 10 ppb |
100% |
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K (m/yr) |
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2.813 |
Kd (m/yr) |
0 |
95th Percentile
(ppb) |
93.2 |
K - SS, C*=4
ppb (m/yr) |
2.7 |
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C1
(ppb) |
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150.0 |
Weir Depth (cm) |
280 |
Outflow Geo.
Mean (ppb) |
76.6 |
Storage Turnover (1/yr) |
8.6 |
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C0 (ppb) |
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4.0 |
Cont Depth (cm) |
0 |
Outflow
GM, Q>0 (ppb) |
76.6 |
Mean Stored P (mg/m2) |
528 |
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C2 (ppb) |
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0 |
Qout Intercept |
4.0 |
Seepage Loss |
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0% |
Storage Inc/Net
Removal |
9% |
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Zx (cm) |
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40 |
Qout Exponent |
1.5 |
HRT (days) |
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110.1 |
Outfl. Seepage
(cm/d/cm) |
0 |
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Ki |
E/m2-d |
0 |
0 |
Model 2 |
Mean Biomass (g/m2) |
#N/A |
Biomass Turnover (1/yr) |
#N/A |
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Kb |
1/d |
0 |
0 |
" |
Gross PP
(g/m2-d) |
#N/A |
Total Resp (g/m2-d) |
#N/A |
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Kr |
1/d/g/m2 |
0 |
0 |
" |
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Ka |
1/d |
0 |
0 |
" |
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Kc |
ppb |
0 |
0 |
" |
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Ke |
1/d |
0 |
0 |
" |
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Ku |
mg/m2 |
0 |
0 |
" |
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Calibration Statistics for Period: |
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10/01/97 |
thru |
08/31/03 |
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Mean |
Mean |
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Inflow P Conc
(ppb) = |
102 |
Count |
Observed |
Predicted |
Residual |
Resid% |
RSE% |
R2 |
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Mean Depth (cm) |
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72 |
303.9 |
304.4 |
-0.5 |
0% |
4% |
41% |
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Flow (cm/day) |
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72 |
2.76 |
2.84 |
-0.08 |
-3% |
50% |
65% |
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Flow-Wtd-Mean
Conc (ppb) |
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72 |
83.9 |
81.7 |
2.2 |
3% |
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Geometric Mean Conc (ppb) |
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72 |
76.7 |
76.2 |
0.4 |
1% |
20% |
48% |
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Mean Conc (ppb) |
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72 |
79.5 |
77.3 |
2.3 |
3% |
19% |
48% |
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Outflow Load (mg/m2-d) |
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72 |
2.27 |
2.32 |
-0.05 |
-2% |
53% |
71% |
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Pred Q x Conc
(mg/m2-d) |
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72 |
2.38 |
2.32 |
0.06 |
3% |
32% |
93% |
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Conc Reduction (%) |
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72 |
18% |
20% |
-0.02 |
-2% |
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![](crescent_files/dmsta_9163_image001.gif) ![](crescent_files/dmsta_9163_image002.gif) ![](crescent_files/dmsta_9163_image003.gif) ![](crescent_files/dmsta_9163_image004.gif) ![](crescent_files/dmsta_9163_image005.gif)
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Obs Load2 = Predicted
Flow x Observed Conc |
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Green
lines on x axis of concentration plots indicate model calibration
period. Statistics at top of sheet are
for entire output period. |
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03/02/05 |
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