Detailed Weather Data for Project: CANT

Date Time TAIR WSPD RELH SRAD 05Mar2018 8 a.m. 47.01 3.40 51.99 96.90 05Mar2018 9 a.m. 49.41 3.30 45.52 327.10 05Mar2018 10 a.m. 51.76 4.20 31.75 527.30 05Mar2018 11 a.m. 53.37 4.10 26.56 673.40 05Mar2018 12 p.m. 55.63 4.00 19.92 800.00 05Mar2018 1 p.m. 56.93 3.60 15.85 748.10 05Mar2018 2 p.m. 58.53 3.40 12.47 785.00 05Mar2018 3 p.m. 59.00 3.20 12.42 723.80 05Mar2018 4 p.m. 59.40 3.10 12.53 559.30 05Mar2018 5 p.m. 58.71 2.80 13.60 362.90 05Mar2018 6 p.m. 57.90 2.10 15.24 146.20 05Mar2018 7 p.m. 51.26 3.60 25.08 5.90 05Mar2018 8 p.m. 52.16 0.30 19.05 0.00 05Mar2018 9 p.m. 49.73 1.30 23.76 0.00 05Mar2018 10 p.m. 42.91 0.70 37.36 0.00 05Mar2018 11 p.m. 38.79 0.30 49.99 0.00 06Mar2018 12 a.m. 40.01 0.60 43.22 0.00 06Mar2018 1 a.m. 40.80 1.90 31.75 0.00 06Mar2018 2 a.m. 40.69 1.70 33.41 0.00 06Mar2018 3 a.m. 40.71 2.00 31.65 0.00 06Mar2018 4 a.m. 39.04 2.20 32.90 0.00 06Mar2018 5 a.m. 37.98 2.10 34.87 0.00 06Mar2018 6 a.m. 37.60 1.60 34.81 0.00 06Mar2018 7 a.m. 35.73 1.60 37.26 0.00 Accuml. Values 1155.05 57.10 692.96 5755.90 Num. Valid Values 24 24 24 24 Avg. Values 48.13 2.38 28.87 239.83 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 8.96 91.87 28.87 494.89 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.7113 definition: xcompl = 1 - (RELH_avg/100) TdC = -8.3158 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 = 0.5400 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4600 definition: del_lambda2 = 1 - del_lambda1 Qn = 4.6926 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 = 8.2153 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 4.3799 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.179 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

Go to Tulsa District Water Control Home Page.