Detailed Weather Data for Project: NEWT

Date Time TAIR WSPD RELH SRAD 05Dec2017 8 a.m. 36.14 7.90 45.17 0.00 05Dec2017 9 a.m. 36.54 7.10 43.45 12.10 05Dec2017 10 a.m. 36.91 7.90 38.50 21.90 05Dec2017 11 a.m. 37.74 7.10 39.62 59.90 05Dec2017 12 p.m. 38.82 6.60 40.22 184.90 05Dec2017 1 p.m. 40.55 6.60 34.76 282.30 05Dec2017 2 p.m. 42.55 6.10 30.38 383.20 05Dec2017 3 p.m. 43.95 3.90 28.16 232.70 05Dec2017 4 p.m. 45.12 2.90 28.33 132.30 05Dec2017 5 p.m. 44.38 2.20 34.28 37.80 05Dec2017 6 p.m. 40.98 1.50 45.30 0.00 05Dec2017 7 p.m. 47.95 4.20 40.28 0.00 05Dec2017 8 p.m. 36.93 1.20 57.12 0.00 05Dec2017 9 p.m. 36.41 0.50 59.89 0.00 05Dec2017 10 p.m. 34.70 1.30 65.92 0.00 05Dec2017 11 p.m. 33.37 0.60 70.32 0.00 06Dec2017 12 a.m. 33.71 1.00 66.80 0.00 06Dec2017 1 a.m. 32.14 0.70 67.42 0.00 06Dec2017 2 a.m. 32.34 0.80 65.97 0.00 06Dec2017 3 a.m. 32.58 0.70 67.96 0.00 06Dec2017 4 a.m. 30.58 0.60 76.39 0.00 06Dec2017 5 a.m. 30.47 1.30 70.76 0.00 06Dec2017 6 a.m. 28.45 1.20 74.81 0.00 06Dec2017 7 a.m. 30.72 1.20 73.50 0.00 Accuml. Values 884.05 75.10 1265.31 1347.10 Num. Valid Values 24 24 24 24 Avg. Values 36.84 3.13 52.72 56.13 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 2.69 120.84 52.72 115.82 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.4728 definition: xcompl = 1 - (RELH_avg/100) TdC = -6.0269 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 = 0.4450 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5550 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.0319 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 = 3.5322 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 2.3389 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.052 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

Go to Tulsa District Water Control Home Page.