Detailed Weather Data for Project: TENK

Date Time TAIR WSPD RELH SRAD 07Nov2017 8 a.m. 45.27 3.97 100.00 9.50 07Nov2017 9 a.m. 45.74 4.03 100.00 35.67 07Nov2017 10 a.m. 46.64 3.13 100.00 102.00 07Nov2017 11 a.m. 47.12 4.03 98.67 107.00 07Nov2017 12 p.m. 47.43 4.53 96.50 87.50 07Nov2017 1 p.m. 47.78 4.77 95.33 101.67 07Nov2017 2 p.m. 47.93 5.59 94.25 49.50 07Nov2017 3 p.m. 46.58 4.98 97.00 39.75 07Nov2017 4 p.m. 45.77 5.26 98.00 37.50 07Nov2017 5 p.m. 45.09 5.59 98.00 15.00 07Nov2017 6 p.m. 44.06 2.68 98.00 0.00 07Nov2017 7 p.m. 43.34 4.25 97.00 0.00 07Nov2017 8 p.m. 43.07 5.37 95.50 0.00 07Nov2017 9 p.m. 42.80 4.85 94.67 0.00 07Nov2017 10 p.m. 42.89 4.81 93.25 0.00 07Nov2017 11 p.m. 43.07 3.75 92.00 0.00 08Nov2017 12 a.m. 43.16 3.86 92.75 0.00 08Nov2017 1 a.m. 43.65 4.19 91.25 0.00 08Nov2017 2 a.m. 43.38 3.08 89.75 0.00 08Nov2017 3 a.m. 43.10 2.98 87.67 0.00 08Nov2017 4 a.m. 42.98 1.79 88.50 0.00 08Nov2017 5 a.m. 42.53 2.57 89.00 0.00 08Nov2017 6 a.m. 42.12 1.45 89.00 0.00 08Nov2017 7 a.m. 41.63 2.68 90.00 3.00 Accuml. Values 1067.13 94.19 2266.09 588.09 Num. Valid Values 24 24 24 24 Avg. Values 44.46 3.92 94.42 24.50 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 6.92 151.55 94.42 50.56 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.0558 definition: xcompl = 1 - (RELH_avg/100) TdC = 6.0656 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 = 0.5097 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4903 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.5418 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 = 0.5741 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 0.5274 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.000 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

Go to Tulsa District Water Control Home Page.