Detailed Weather Data for Project: CANT

Date Time TAIR WSPD RELH SRAD 03Mar2018 8 a.m. 47.05 4.80 92.18 74.80 03Mar2018 9 a.m. 51.24 6.50 83.22 286.50 03Mar2018 10 a.m. 57.56 8.90 71.70 483.20 03Mar2018 11 a.m. 61.93 10.20 64.36 645.50 03Mar2018 12 p.m. 65.61 10.30 58.34 685.90 03Mar2018 1 p.m. 68.97 9.90 54.43 704.40 03Mar2018 2 p.m. 70.50 10.20 51.35 708.80 03Mar2018 3 p.m. 71.02 10.30 49.16 681.10 03Mar2018 4 p.m. 69.48 10.40 51.98 242.40 03Mar2018 5 p.m. 69.57 12.40 50.52 210.60 03Mar2018 6 p.m. 68.95 12.10 48.87 132.20 03Mar2018 7 p.m. 63.18 10.00 99.30 0.00 03Mar2018 8 p.m. 64.87 9.70 48.99 0.00 03Mar2018 9 p.m. 62.22 8.30 52.77 0.00 03Mar2018 10 p.m. 60.57 8.00 57.33 0.00 03Mar2018 11 p.m. 59.47 8.80 58.79 0.00 04Mar2018 12 a.m. 60.28 8.80 61.28 0.00 04Mar2018 1 a.m. 59.70 9.00 68.79 0.00 04Mar2018 2 a.m. 59.02 7.90 76.34 0.00 04Mar2018 3 a.m. 58.75 8.00 81.53 0.00 04Mar2018 4 a.m. 58.95 9.10 81.23 0.00 04Mar2018 5 a.m. 58.87 7.70 80.45 0.00 04Mar2018 6 a.m. 57.69 7.20 82.15 0.00 04Mar2018 7 a.m. 58.60 6.70 88.14 0.00 Accuml. Values 1484.04 215.20 1613.20 4855.40 Num. Valid Values 24 24 24 24 Avg. Values 61.84 8.97 67.22 202.31 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 16.58 346.26 67.22 417.47 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3278 definition: xcompl = 1 - (RELH_avg/100) TdC = 10.5548 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 = 0.6450 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3550 definition: del_lambda2 = 1 - del_lambda1 Qn = 4.2490 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 = 6.1172 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 7.0100 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.206 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

Go to Tulsa District Water Control Home Page.