Detailed Weather Data for Project: EUFA

Date Time TAIR WSPD RELH SRAD 06Nov2017 8 a.m. 54.61 1.06 80.65 9.00 06Nov2017 9 a.m. 55.06 0.44 88.40 39.00 06Nov2017 10 a.m. 55.06 0.30 90.60 64.00 06Nov2017 11 a.m. 54.95 0.94 92.55 69.00 06Nov2017 12 p.m. 55.06 1.49 92.12 125.00 06Nov2017 1 p.m. 55.27 1.77 91.70 116.00 06Nov2017 2 p.m. 54.61 1.48 92.80 81.00 06Nov2017 3 p.m. 54.95 0.90 92.49 72.00 06Nov2017 4 p.m. 52.20 0.48 92.92 29.00 06Nov2017 5 p.m. 51.96 0.96 92.85 18.00 06Nov2017 6 p.m. 50.56 0.78 92.00 0.00 06Nov2017 7 p.m. 45.82 1.63 88.89 0.00 06Nov2017 8 p.m. 47.91 1.74 91.64 0.00 06Nov2017 9 p.m. 47.35 1.82 89.99 0.00 06Nov2017 10 p.m. 47.35 1.49 91.94 0.00 06Nov2017 11 p.m. 46.49 1.35 89.44 0.00 07Nov2017 12 a.m. 46.04 1.15 91.33 0.00 07Nov2017 1 a.m. 45.50 1.84 89.87 0.00 07Nov2017 2 a.m. 46.04 1.25 89.07 0.00 07Nov2017 3 a.m. 45.61 1.23 89.44 0.00 07Nov2017 4 a.m. 46.26 1.52 89.99 0.00 07Nov2017 5 a.m. 45.50 2.00 92.25 0.00 07Nov2017 6 a.m. 45.50 2.65 92.55 0.00 07Nov2017 7 a.m. 45.39 2.22 92.00 0.00 Accuml. Values 1195.05 32.49 2177.48 622.00 Num. Valid Values 24 24 24 24 Avg. Values 49.79 1.35 90.73 25.92 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 9.89 52.28 90.73 53.48 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.0927 definition: xcompl = 1 - (RELH_avg/100) TdC = 8.4184 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 = 0.5536 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4464 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.4869 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 = 1.1496 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 0.6462 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.001 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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