Detailed Weather Data for Project: EUFA

Date Time TAIR WSPD RELH SRAD 04Mar2018 8 a.m. 51.76 7.67 61.23 14.00 04Mar2018 9 a.m. 51.98 8.68 62.09 51.00 04Mar2018 10 a.m. 53.85 9.39 58.49 105.00 04Mar2018 11 a.m. 55.27 9.52 58.00 130.00 04Mar2018 12 p.m. 57.58 7.74 57.14 83.00 04Mar2018 1 p.m. 58.89 7.65 55.85 61.00 04Mar2018 2 p.m. 58.57 10.59 61.48 93.00 04Mar2018 3 p.m. 58.68 12.62 65.01 98.00 04Mar2018 4 p.m. 57.79 11.17 67.46 78.00 04Mar2018 5 p.m. 57.90 10.97 70.02 46.00 04Mar2018 6 p.m. 57.58 10.71 70.63 13.00 04Mar2018 7 p.m. 56.70 0.66 23.44 10.00 04Mar2018 8 p.m. 55.04 10.74 79.42 0.00 04Mar2018 9 p.m. 54.07 10.93 83.52 0.00 04Mar2018 10 p.m. 55.49 10.07 72.77 0.00 04Mar2018 11 p.m. 55.71 10.33 69.83 0.00 05Mar2018 12 a.m. 56.59 10.67 68.25 0.00 05Mar2018 1 a.m. 56.48 9.56 69.95 0.00 05Mar2018 2 a.m. 56.80 8.16 72.70 0.00 05Mar2018 3 a.m. 58.14 7.92 76.43 0.00 05Mar2018 4 a.m. 61.09 8.36 81.31 0.00 05Mar2018 5 a.m. 62.20 8.71 80.77 0.00 05Mar2018 6 a.m. 63.73 8.08 83.03 0.00 05Mar2018 7 a.m. 68.47 6.43 68.93 1.00 Accuml. Values 1380.36 217.33 1617.75 783.00 Num. Valid Values 24 24 24 24 Avg. Values 57.51 9.06 67.41 32.63 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 14.17 349.68 67.41 67.32 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3259 definition: xcompl = 1 - (RELH_avg/100) TdC = 8.2979 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 = 0.6136 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3864 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.2912 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 = 5.2234 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 6.1429 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.086 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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