Detailed Weather Data for Project: FSUP

Date Time TAIR WSPD RELH SRAD 29Dec2017 8 a.m. 25.90 15.00 98.75 0.00 29Dec2017 9 a.m. 26.42 14.10 98.81 9.60 29Dec2017 10 a.m. 27.27 14.70 98.43 53.20 29Dec2017 11 a.m. 29.03 16.50 94.77 200.60 29Dec2017 12 p.m. 31.86 15.90 88.10 484.30 29Dec2017 1 p.m. 36.05 10.40 75.25 560.00 29Dec2017 2 p.m. 39.72 7.00 64.95 517.60 29Dec2017 3 p.m. 42.17 7.40 59.80 381.00 29Dec2017 4 p.m. 43.43 7.10 56.75 126.40 29Dec2017 5 p.m. 43.05 5.60 58.33 62.40 29Dec2017 6 p.m. 43.45 2.20 55.45 0.30 29Dec2017 7 p.m. 12.92 5.00 65.01 0.00 29Dec2017 8 p.m. 35.91 2.90 69.71 0.00 29Dec2017 9 p.m. 32.61 2.60 78.01 0.00 29Dec2017 10 p.m. 28.99 5.50 80.81 0.00 29Dec2017 11 p.m. 23.25 6.20 81.07 0.00 30Dec2017 12 a.m. 18.61 6.30 86.11 0.00 30Dec2017 1 a.m. 17.37 5.40 84.76 0.00 30Dec2017 2 a.m. 16.83 4.90 84.83 0.00 30Dec2017 3 a.m. 16.29 5.30 82.80 0.00 30Dec2017 4 a.m. 15.39 5.30 81.03 0.00 30Dec2017 5 a.m. 14.38 5.50 79.89 0.00 30Dec2017 6 a.m. 13.55 5.60 82.20 0.00 30Dec2017 7 a.m. 12.36 5.20 82.63 0.00 Accuml. Values 646.79 181.60 1888.25 2395.40 Num. Valid Values 24 24 24 24 Avg. Values 26.95 7.57 78.68 99.81 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values -2.81 292.19 78.68 205.96 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.2132 definition: xcompl = 1 - (RELH_avg/100) TdC = -5.9881 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 = 0.3606 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.6394 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.7788 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 = 1.0676 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 1.3424 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.045 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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