Detailed Weather Data for Project: TORO

Date Time TAIR WSPD RELH SRAD 03Dec2017 8 a.m. 39.72 0.40 97.20 10.70 03Dec2017 9 a.m. 40.66 0.20 92.49 169.00 03Dec2017 10 a.m. 48.42 1.60 84.64 298.90 03Dec2017 11 a.m. 58.42 7.80 76.05 366.10 03Dec2017 12 p.m. 61.90 8.00 69.77 450.20 03Dec2017 1 p.m. 65.07 9.40 61.16 394.10 03Dec2017 2 p.m. 66.40 9.50 54.33 312.30 03Dec2017 3 p.m. 67.10 10.00 54.57 247.30 03Dec2017 4 p.m. 68.04 8.30 51.36 163.80 03Dec2017 5 p.m. 65.70 9.60 59.13 23.80 03Dec2017 6 p.m. 62.42 7.10 72.82 0.00 03Dec2017 7 p.m. 51.84 10.60 43.58 0.00 03Dec2017 8 p.m. 62.96 10.10 74.41 0.00 03Dec2017 9 p.m. 63.61 13.70 75.67 0.00 03Dec2017 10 p.m. 63.50 13.00 75.42 0.00 03Dec2017 11 p.m. 63.54 13.20 72.84 0.00 04Dec2017 12 a.m. 63.32 13.50 73.40 0.00 04Dec2017 1 a.m. 63.77 14.30 74.94 0.00 04Dec2017 2 a.m. 63.23 12.00 77.39 0.00 04Dec2017 3 a.m. 63.23 12.50 76.86 0.00 04Dec2017 4 a.m. 63.32 13.00 76.56 0.00 04Dec2017 5 a.m. 63.66 12.50 76.36 0.00 04Dec2017 6 a.m. 64.49 11.60 76.52 0.00 04Dec2017 7 a.m. 64.92 12.40 78.02 0.00 Accuml. Values 1459.22 234.30 1725.49 2436.20 Num. Valid Values 24 24 24 24 Avg. Values 60.80 9.76 71.90 101.51 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 16.00 376.99 71.90 209.46 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.2810 definition: xcompl = 1 - (RELH_avg/100) TdC = 11.0030 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 = 0.6376 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3624 definition: del_lambda2 = 1 - del_lambda1 Qn = 1.4368 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 = 5.0531 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 6.2958 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.126 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

Go to Tulsa District Water Control Home Page.