Detailed Weather Data for Project: BROK

Date Time TAIR WSPD RELH SRAD 07Nov2017 8 a.m. 55.94 1.13 87.55 37.00 07Nov2017 9 a.m. 56.16 1.52 88.71 75.00 07Nov2017 10 a.m. 55.83 1.09 94.38 47.00 07Nov2017 11 a.m. 55.94 0.10 94.63 69.00 07Nov2017 12 p.m. 56.26 0.99 90.72 73.00 07Nov2017 1 p.m. 57.04 1.05 89.99 69.00 07Nov2017 2 p.m. 56.59 2.44 90.66 55.00 07Nov2017 3 p.m. 56.93 1.67 89.68 34.00 07Nov2017 4 p.m. 54.84 0.23 95.91 23.00 07Nov2017 5 p.m. 53.29 0.93 94.57 15.00 07Nov2017 6 p.m. 52.74 0.86 91.14 0.00 07Nov2017 7 p.m. 47.35 0.94 89.06 0.00 07Nov2017 8 p.m. 51.87 2.88 87.30 1.00 07Nov2017 9 p.m. 51.98 0.41 85.29 0.00 07Nov2017 10 p.m. 50.76 3.03 89.85 0.00 07Nov2017 11 p.m. 50.56 1.00 92.12 0.00 08Nov2017 12 a.m. 50.77 0.35 90.35 0.00 08Nov2017 1 a.m. 50.88 0.15 85.84 0.00 08Nov2017 2 a.m. 50.56 0.37 88.52 0.00 08Nov2017 3 a.m. 50.77 0.29 92.00 0.00 08Nov2017 4 a.m. 50.65 0.43 89.98 0.00 08Nov2017 5 a.m. 50.56 0.82 86.20 0.00 08Nov2017 6 a.m. 49.44 0.48 79.91 1.00 08Nov2017 7 a.m. 49.46 0.41 82.49 1.00 Accuml. Values 1267.18 23.57 2146.85 500.00 Num. Valid Values 24 24 24 24 Avg. Values 52.80 0.98 89.45 20.83 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 11.55 37.92 89.45 42.99 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.1055 definition: xcompl = 1 - (RELH_avg/100) TdC = 9.8612 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 = 0.5775 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4225 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.5803 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 = 1.4543 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 0.7369 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

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