Detailed Weather Data for Project: FALL

Date Time TAIR WSPD RELH SRAD 08Nov2017 8 a.m. 33.08 5.80 79.44 31.70 08Nov2017 9 a.m. 34.38 5.30 78.10 155.70 08Nov2017 10 a.m. 38.32 5.50 67.86 329.60 08Nov2017 11 a.m. 41.94 5.40 60.71 437.30 08Nov2017 12 p.m. 45.23 6.40 49.50 502.50 08Nov2017 1 p.m. 48.27 3.80 42.65 509.10 08Nov2017 2 p.m. 50.99 3.90 34.77 458.40 08Nov2017 3 p.m. 51.76 3.40 35.16 357.20 08Nov2017 4 p.m. 53.24 1.80 30.48 221.60 08Nov2017 5 p.m. 52.79 2.80 31.75 69.70 08Nov2017 6 p.m. 50.54 1.40 35.02 0.00 08Nov2017 7 p.m. 46.90 7.50 61.67 0.00 08Nov2017 8 p.m. 43.21 0.70 73.84 0.00 08Nov2017 9 p.m. 39.33 0.40 77.85 0.00 08Nov2017 10 p.m. 37.65 0.70 79.61 0.00 08Nov2017 11 p.m. 35.13 1.00 80.42 0.00 09Nov2017 12 a.m. 33.13 1.40 85.61 0.00 09Nov2017 1 a.m. 30.78 1.30 88.05 0.00 09Nov2017 2 a.m. 33.26 1.40 85.90 0.00 09Nov2017 3 a.m. 30.78 1.30 91.73 0.00 09Nov2017 4 a.m. 33.24 0.20 91.75 0.00 09Nov2017 5 a.m. 33.78 3.40 94.29 0.00 09Nov2017 6 a.m. 33.33 3.10 88.94 0.00 09Nov2017 7 a.m. 30.72 1.60 86.46 0.00 Accuml. Values 961.79 69.50 1631.56 3072.80 Num. Valid Values 24 24 24 24 Avg. Values 40.07 2.90 67.98 128.03 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 4.49 111.83 67.98 264.20 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3202 definition: xcompl = 1 - (RELH_avg/100) TdC = -0.8690 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 = 0.4727 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5273 definition: del_lambda2 = 1 - del_lambda1 Qn = 1.6012 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 = 2.6919 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 1.7791 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.067 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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