Detailed Weather Data for Project: BROK

Date Time TAIR WSPD RELH SRAD 08Nov2017 8 a.m. 49.23 0.37 83.15 29.00 08Nov2017 9 a.m. 49.23 0.48 79.29 76.00 08Nov2017 10 a.m. 48.34 1.06 88.10 51.00 08Nov2017 11 a.m. 47.91 0.64 89.32 57.00 08Nov2017 12 p.m. 48.90 0.25 89.99 76.00 08Nov2017 1 p.m. 48.90 0.85 90.96 37.00 08Nov2017 2 p.m. 49.12 0.11 89.55 47.00 08Nov2017 3 p.m. 48.58 0.68 90.90 53.00 08Nov2017 4 p.m. 49.01 0.50 88.95 34.00 08Nov2017 5 p.m. 48.56 0.50 87.23 7.00 08Nov2017 6 p.m. 48.69 0.53 87.61 0.00 08Nov2017 7 p.m. 49.98 1.66 86.68 0.00 08Nov2017 8 p.m. 46.49 1.78 91.76 0.00 08Nov2017 9 p.m. 46.38 0.88 97.01 0.00 08Nov2017 10 p.m. 47.03 0.05 98.66 0.00 08Nov2017 11 p.m. 47.68 0.09 94.74 0.00 09Nov2017 12 a.m. 48.67 1.23 83.51 0.00 09Nov2017 1 a.m. 48.47 0.69 83.39 0.00 09Nov2017 2 a.m. 48.24 0.34 84.37 0.00 09Nov2017 3 a.m. 47.14 0.26 94.99 0.00 09Nov2017 4 a.m. 44.40 0.64 98.72 0.00 09Nov2017 5 a.m. 42.85 0.11 98.84 0.00 09Nov2017 6 a.m. 41.86 0.47 98.90 0.00 09Nov2017 7 a.m. 43.30 0.31 99.08 5.00 Accuml. Values 1138.96 14.48 2175.70 472.00 Num. Valid Values 24 24 24 24 Avg. Values 47.46 0.60 90.65 19.67 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 8.59 23.30 90.65 40.58 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.0935 definition: xcompl = 1 - (RELH_avg/100) TdC = 7.1221 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 = 0.5345 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4655 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.6266 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 = 1.0629 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 0.5145 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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