MINLEAP Report

Lows

Model Inputs

Ecoregion	NLF
Watersed Area	23.581029912 km2
Surface Area	1.290947064 km2
Mean Depth	1.6 m
Total Phosphorus	65 ug/L
Chlorophyll A	36.5 ug/L
Secchi Disk	0.9 m
Alkalinity	1.1 meq/L

MINLEAP Output

Average TP Inflow	54 ug/L
TP Load	301 kg/yr
Chiadudani/Vighi TP	24 ug/L
Phos Retention Coef	0.37
Lake Outflow	5.59 hm3/yr
Residence Time	0.4 years
Areal Water Load	4.33 m/yr

Variable	Observed	Predicted	Std Error	Residual	T-test
TP (ug/L)	65	34	8.0	0.28	2.26
Chlr A (ug/L)	37	11	5.6	0.51	2.08
Secchi (m)	1	2	0.6	-0.31	-1.91

Residual = Log10(Observed/Predicted)
T-test for significant difference between observed and predicted

Chlorophyll A Interval Frequencies

Conc	Observed	Case A	Case B	Case C
10 ppb	99%	51%	51%	51%
20 ppb	84%	8%	10%	17%
30 ppb	57%	1%	2%	7%
60 ppb	10%	0%	0%	1%

Case A = within year variation considered
Case B = within year + year-to-year variation
Case C = Case B + Model Error

Carlson's Trophic State Index