Detailed Weather Data for Project: FALL

Date Time TAIR WSPD RELH SRAD 05Dec2017 8 a.m. 31.60 5.50 43.68 0.00 05Dec2017 9 a.m. 32.63 4.80 39.39 23.10 05Dec2017 10 a.m. 33.98 5.80 37.86 169.40 05Dec2017 11 a.m. 38.32 9.30 28.17 470.30 05Dec2017 12 p.m. 40.33 9.20 24.02 481.00 05Dec2017 1 p.m. 43.02 7.80 22.41 455.10 05Dec2017 2 p.m. 45.63 8.80 20.09 435.50 05Dec2017 3 p.m. 47.79 8.50 18.96 344.10 05Dec2017 4 p.m. 48.15 8.90 20.38 172.00 05Dec2017 5 p.m. 47.30 5.80 20.12 39.50 05Dec2017 6 p.m. 41.11 4.70 28.71 0.00 05Dec2017 7 p.m. 42.89 5.50 36.03 0.00 05Dec2017 8 p.m. 36.55 7.70 39.33 0.00 05Dec2017 9 p.m. 36.66 7.20 39.66 0.00 05Dec2017 10 p.m. 34.81 5.30 44.42 0.00 05Dec2017 11 p.m. 33.62 0.90 49.27 0.00 06Dec2017 12 a.m. 33.85 1.60 51.20 0.00 06Dec2017 1 a.m. 34.45 1.80 48.75 0.00 06Dec2017 2 a.m. 34.29 1.80 49.80 0.00 06Dec2017 3 a.m. 36.12 4.80 45.99 0.00 06Dec2017 4 a.m. 36.81 4.70 42.17 0.00 06Dec2017 5 a.m. 34.70 5.00 46.15 0.00 06Dec2017 6 a.m. 36.10 7.10 48.83 0.00 06Dec2017 7 a.m. 33.82 4.00 52.39 0.00 Accuml. Values 914.52 136.50 897.78 2590.00 Num. Valid Values 24 24 24 24 Avg. Values 38.11 5.69 37.41 107.92 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 3.39 219.63 37.41 222.69 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.6259 definition: xcompl = 1 - (RELH_avg/100) TdC = -9.9225 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 = 0.4559 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5441 definition: del_lambda2 = 1 - del_lambda1 Qn = 1.1173 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 = 4.9399 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 4.3104 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.112 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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