Detailed Weather Data for Project: MCGE

Date Time TAIR WSPD RELH SRAD 06Nov2017 8 a.m. 56.70 2.29 81.50 22.50 06Nov2017 9 a.m. 56.60 3.80 89.67 59.33 06Nov2017 10 a.m. 56.30 5.65 96.75 107.00 06Nov2017 11 a.m. 56.66 6.79 96.33 140.67 06Nov2017 12 p.m. 58.82 5.70 89.25 232.00 06Nov2017 1 p.m. 61.16 7.68 80.67 237.33 06Nov2017 2 p.m. 58.73 9.79 83.25 143.50 06Nov2017 3 p.m. 58.04 8.28 84.00 126.33 06Nov2017 4 p.m. 58.10 7.05 82.00 77.25 06Nov2017 5 p.m. 57.42 8.05 81.50 24.75 06Nov2017 6 p.m. 55.76 7.83 84.00 0.00 06Nov2017 7 p.m. 55.04 6.49 86.00 0.00 06Nov2017 8 p.m. 54.50 8.05 86.00 0.00 06Nov2017 9 p.m. 54.05 9.28 85.50 0.00 06Nov2017 10 p.m. 53.48 10.07 83.67 0.00 06Nov2017 11 p.m. 52.20 10.51 83.50 0.00 07Nov2017 12 a.m. 51.44 8.89 84.50 0.00 07Nov2017 1 a.m. 50.58 8.44 86.75 0.00 07Nov2017 2 a.m. 49.86 8.22 84.00 0.00 07Nov2017 3 a.m. 48.62 7.75 84.33 0.00 07Nov2017 4 a.m. 47.93 6.82 85.75 0.00 07Nov2017 5 a.m. 47.48 9.51 87.00 0.00 07Nov2017 6 a.m. 47.07 10.90 87.25 0.00 07Nov2017 7 a.m. 46.76 12.19 87.00 1.50 Accuml. Values 1293.30 190.03 2060.17 1172.16 Num. Valid Values 24 24 24 24 Avg. Values 53.89 7.92 85.84 48.84 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 12.16 305.76 85.84 100.78 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.1416 definition: xcompl = 1 - (RELH_avg/100) TdC = 9.8542 definition: TdC = TAIR_avg - ((14.55 + (0.114*TAIR_avg))*xcompl +pow((2.5 + 0.007*TAIR_avg)*xcompl, 3) + (15.9 +0.117*TAIR_avg)*pow(xcompl, 14)) del_lambda1 = 0.5860 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4140 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.0448 definition: Qn = 0.00714*SRAD_avg + 0.00000526*SRAD_avg*pow(TAIR_avg+17.8, 1.87) +0.00000394*pow(SRAD_avg, 2) - 0.00000000239*pow(SRAD_avg, 2)*pow(TAIR_avg-7.2, 2) - 1.02 es_ea = 2.0149 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 2.4206 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.040 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

Go to Tulsa District Water Control Home Page.