Detailed Weather Data for Project: EUFA

Date Time TAIR WSPD RELH SRAD 02Dec2017 8 a.m. 47.03 4.18 59.89 15.00 02Dec2017 9 a.m. 50.32 5.22 58.55 148.00 02Dec2017 10 a.m. 56.37 5.38 49.45 318.00 02Dec2017 11 a.m. 61.11 4.58 46.28 440.00 02Dec2017 12 p.m. 66.58 3.48 43.58 521.00 02Dec2017 1 p.m. 70.88 4.17 45.97 519.00 02Dec2017 2 p.m. 70.77 1.87 48.96 460.00 02Dec2017 3 p.m. 72.73 3.93 47.86 363.00 02Dec2017 4 p.m. 72.30 4.46 47.92 219.00 02Dec2017 5 p.m. 69.01 4.60 42.19 55.00 02Dec2017 6 p.m. 66.27 3.03 46.52 2.00 02Dec2017 7 p.m. 66.70 9.67 61.60 0.00 02Dec2017 8 p.m. 62.10 4.19 53.30 0.00 02Dec2017 9 p.m. 61.11 3.81 53.42 0.00 02Dec2017 10 p.m. 59.88 5.27 55.68 0.00 02Dec2017 11 p.m. 59.34 5.55 57.57 0.00 03Dec2017 12 a.m. 57.79 5.73 60.74 0.00 03Dec2017 1 a.m. 55.71 5.05 66.48 0.00 03Dec2017 2 a.m. 53.19 3.47 73.81 0.00 03Dec2017 3 a.m. 54.18 4.98 72.95 0.00 03Dec2017 4 a.m. 53.62 5.33 76.43 0.00 03Dec2017 5 a.m. 53.29 5.30 79.00 0.00 03Dec2017 6 a.m. 52.75 5.28 81.01 0.00 03Dec2017 7 a.m. 52.97 5.39 81.32 0.00 Accuml. Values 1446.01 113.92 1410.48 3060.00 Num. Valid Values 24 24 24 24 Avg. Values 60.25 4.75 58.77 127.50 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 15.69 183.30 58.77 263.10 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.4123 definition: xcompl = 1 - (RELH_avg/100) TdC = 7.7119 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 = 0.6337 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3663 definition: del_lambda2 = 1 - del_lambda1 Qn = 2.1029 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 = 7.3143 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 5.4816 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.132 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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