Detailed Weather Data for Project: BROK

Date Time TAIR WSPD RELH SRAD 06Nov2017 8 a.m. 67.03 0.67 99.07 12.00 06Nov2017 9 a.m. 68.02 1.98 99.15 28.00 06Nov2017 10 a.m. 68.79 2.26 98.96 60.00 06Nov2017 11 a.m. 70.65 2.33 93.82 93.00 06Nov2017 12 p.m. 71.64 1.63 88.94 93.00 06Nov2017 1 p.m. 71.64 1.74 86.38 90.00 06Nov2017 2 p.m. 74.16 2.20 81.00 169.00 06Nov2017 3 p.m. 74.50 0.69 73.02 269.00 06Nov2017 4 p.m. 70.66 0.41 78.39 111.00 06Nov2017 5 p.m. 67.57 0.20 81.06 24.00 06Nov2017 6 p.m. 65.93 1.17 81.87 0.00 06Nov2017 7 p.m. 52.41 0.44 86.99 1.00 06Nov2017 8 p.m. 61.75 2.13 83.87 1.00 06Nov2017 9 p.m. 60.66 3.15 86.08 0.00 06Nov2017 10 p.m. 59.67 2.42 87.36 1.00 06Nov2017 11 p.m. 58.68 2.86 88.40 0.00 07Nov2017 12 a.m. 57.45 3.37 88.45 1.00 07Nov2017 1 a.m. 57.25 2.25 87.00 0.00 07Nov2017 2 a.m. 57.15 1.52 82.42 0.00 07Nov2017 3 a.m. 57.04 1.48 82.11 1.00 07Nov2017 4 a.m. 55.60 0.13 89.13 1.00 07Nov2017 5 a.m. 54.84 1.84 87.67 0.00 07Nov2017 6 a.m. 54.73 2.14 90.11 0.00 07Nov2017 7 a.m. 56.05 1.36 87.36 2.00 Accuml. Values 1513.85 40.37 2088.61 957.00 Num. Valid Values 24 24 24 24 Avg. Values 63.08 1.68 87.03 39.88 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 17.27 64.96 87.03 82.28 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.1297 definition: xcompl = 1 - (RELH_avg/100) TdC = 15.0825 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 = 0.6537 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3463 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.0723 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 = 2.5594 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 1.3910 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.017 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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