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<br />05/31/94 15:55 FAX 612 441 5665 <br /> <br />JOHN OLlv~R ASSO <br /> <br />I4J 003 <br /> <br />. . . <br /> <br />e <br /> <br />Minnesota Lake Eutrophication Analysis Procedure <br />ENTER INPUT VARIABLES <br />LA~(E NAME '7-' DF.:OI'l./O <br />ECOREGION NUMBER I~NLF,2=CH'~3=WCP,4=NGP ? 2 <br />WATERSHED AREA (HAl ~ 140623 <br />LAKE SURFACE AREA (HA) ? 113.7 <br />LAKE MEAN DEPTH CM) - 5 <br />OBSERVED MEAN LAKE TP (UG/L) ? 130 <br />OBSERVED MEAN CHL-A (UG/L) ? 18 <br />OBSERYED MEAN BEeCHI (M) ? 0.7 <br /> <br />INPUT DATA~ <br />LAKE NAME =ORONO ECOREGION=CH~ <br />LAKE AREA = 113.7 HA <br />WATERSHED AREA (EXCLUDING LAKE) = 140523 HA <br />MEAN DEPTH = 5 METERS <br />OBSERVED MEAN TP = 130 UG/L <br />OBSERVED MEAN CHL-A = 18 UG/L <br />OBSERVED MEAN SECCHI =.7 METERS <br /> <br />(press ENTER to view results) <br /> <br />LAKE = ORONO <br />AVERAGE INFLOW TP = 148.1497 UG/L <br />LAKE OUTFLOW -~ 182.8554 HM3/YR <br />e RESIDENCE TIME = 3. 1(I'~/()14E-02 YRS <br /> <br />ECOREI3 I ON = CHF <br />TOr AL F' I_O~D <br />Ar;~EAL WA TEF~ LOAD <br />F' F~ETENT I ON C:OEF <br /> <br />= 27089.97 KG/YR <br />= 150. 8227 M/YF~ <br />- . 1'~58'~(l3 <br /> <br />3~~. 78 <br />0.21 <br /> <br />F.:ES r. DUAL <br />0.04 <br />-0.50 <br />1). (l5 <br /> <br />T-TEST <br /> <br />'v'AF.:IABI_E UNITS OBSEF.:'y'fD PF.:EDr.CTED STD EHF.:OF.: <br />TOTAL F' (U13/L) 130. 00 11'~. 1~ 24.11 <br />CHL-A (UG/L) 18.00 70.99 <br />SECCHI (METERS) 0.70 0.E3 <br />NOTE: RESIDUAL = LOG1(l(OBSERVEDiPREDICTED) <br />T-TEST FOR SIGNI~ICANT DIFFERENCE BETWEEN OBS. AND PREDICTED <br /> <br />0.3.;1- <br />-2.57 <br />0.3(1 <br /> <br />C:HLOJ;~OPHYLL-A INTEF~VAL FF~EQ.UENCIES (%:: <br />CHL-A PF.:EDICTED PREDICTED PREDICTED <br />PPB OBSERVED CASE A CASE B CASE C <br />10 83.78 99.99 99.98 99.60 <br />20 32.25 99.18 98.65 35.12 <br />30 9.59 94.00 92.45 85.85 <br />60 0.30 54.46 54.12 53.10 <br />CASE A = WITHIN-YEAR VARIATION CONSID~RED <br />CASE B = WITHIN-YEAR + YEAR-TO-YEAR VARIATION CONSIDERED <br />CASE C - I:A8E B + MODEI_ ERROR CONSIDERED <br /> <br />PrESS a~y key to continue <br /> <br />e <br />