Detailed Weather Data for Project: EUFA

Date Time TAIR WSPD RELH SRAD 08Nov2017 8 a.m. 44.06 3.33 78.63 29.00 08Nov2017 9 a.m. 45.16 4.47 75.03 93.00 08Nov2017 10 a.m. 45.16 4.91 73.20 104.00 08Nov2017 11 a.m. 46.83 3.55 70.22 127.00 08Nov2017 12 p.m. 48.79 1.92 67.77 257.00 08Nov2017 1 p.m. 50.22 2.84 64.22 263.00 08Nov2017 2 p.m. 50.32 2.55 63.31 193.00 08Nov2017 3 p.m. 51.53 1.90 60.68 180.00 08Nov2017 4 p.m. 52.52 1.00 59.95 133.00 08Nov2017 5 p.m. 51.76 0.68 61.66 52.00 08Nov2017 6 p.m. 50.56 0.64 68.13 6.00 08Nov2017 7 p.m. 50.77 0.49 70.39 0.00 08Nov2017 8 p.m. 47.48 0.49 75.64 0.00 08Nov2017 9 p.m. 46.81 1.12 82.54 0.00 08Nov2017 10 p.m. 46.71 0.17 85.47 0.00 08Nov2017 11 p.m. 44.73 0.76 88.58 0.00 09Nov2017 12 a.m. 42.21 1.24 93.28 0.00 09Nov2017 1 a.m. 40.98 1.94 95.42 0.00 09Nov2017 2 a.m. 39.78 1.98 95.97 0.00 09Nov2017 3 a.m. 38.57 2.00 96.46 0.00 09Nov2017 4 a.m. 37.80 2.01 96.52 0.00 09Nov2017 5 a.m. 37.47 1.80 96.58 -1.00 09Nov2017 6 a.m. 36.48 1.77 96.58 -1.00 09Nov2017 7 a.m. 36.93 2.76 96.64 0.00 Accuml. Values 1083.63 46.32 1912.87 1435.00 Num. Valid Values 24 24 24 24 Avg. Values 45.15 1.93 79.70 59.79 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 7.31 74.53 79.70 123.38 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.2030 definition: xcompl = 1 - (RELH_avg/100) TdC = 4.0451 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 = 0.5155 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4845 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.1900 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 = 2.0772 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 1.2104 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.027 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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