Detailed Weather Data for Project: FSUP

Date Time TAIR WSPD RELH SRAD 03Dec2017 8 a.m. 36.73 3.30 99.55 1.90 03Dec2017 9 a.m. 38.79 3.60 99.70 69.60 03Dec2017 10 a.m. 41.79 3.90 99.58 158.90 03Dec2017 11 a.m. 48.94 5.50 92.66 214.20 03Dec2017 12 p.m. 58.87 12.50 56.73 459.80 03Dec2017 1 p.m. 64.08 17.40 44.83 580.20 03Dec2017 2 p.m. 67.64 18.60 38.50 543.10 03Dec2017 3 p.m. 69.15 17.70 36.56 372.30 03Dec2017 4 p.m. 69.89 17.60 35.59 41.80 03Dec2017 5 p.m. 69.26 16.20 40.52 28.70 03Dec2017 6 p.m. 65.05 15.30 53.19 0.00 03Dec2017 7 p.m. 46.40 4.80 36.46 0.00 03Dec2017 8 p.m. 63.45 16.20 61.00 0.00 03Dec2017 9 p.m. 63.09 19.20 63.26 0.00 03Dec2017 10 p.m. 62.44 20.90 66.70 0.00 03Dec2017 11 p.m. 62.28 21.90 69.44 0.00 04Dec2017 12 a.m. 61.39 22.00 72.59 0.00 04Dec2017 1 a.m. 60.62 20.90 74.06 0.00 04Dec2017 2 a.m. 59.79 19.30 74.96 0.00 04Dec2017 3 a.m. 58.41 19.30 78.11 0.00 04Dec2017 4 a.m. 57.11 18.90 81.93 0.00 04Dec2017 5 a.m. 56.59 19.10 83.15 0.00 04Dec2017 6 a.m. 55.71 17.40 83.35 0.00 04Dec2017 7 a.m. 54.27 14.00 83.68 0.00 Accuml. Values 1391.72 365.50 1626.10 2470.50 Num. Valid Values 24 24 24 24 Avg. Values 57.99 15.23 67.75 102.94 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 14.44 588.09 67.75 212.41 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3225 definition: xcompl = 1 - (RELH_avg/100) TdC = 8.6254 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 = 0.6171 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3829 definition: del_lambda2 = 1 - del_lambda1 Qn = 1.4080 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 = 5.2546 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 9.1523 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.172 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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