Detailed Weather Data for Project: FSUP

Date Time TAIR WSPD RELH SRAD 02Dec2017 8 a.m. 31.57 4.60 89.66 3.40 02Dec2017 9 a.m. 33.69 7.20 83.71 135.70 02Dec2017 10 a.m. 38.97 9.20 70.22 324.50 02Dec2017 11 a.m. 44.37 8.10 58.88 478.20 02Dec2017 12 p.m. 50.67 7.40 52.04 578.50 02Dec2017 1 p.m. 56.71 4.40 50.65 606.00 02Dec2017 2 p.m. 59.94 3.10 45.69 567.60 02Dec2017 3 p.m. 62.19 2.50 42.31 405.60 02Dec2017 4 p.m. 62.35 2.50 42.95 31.80 02Dec2017 5 p.m. 61.36 2.40 46.15 31.80 02Dec2017 6 p.m. 58.91 4.40 51.18 3.00 02Dec2017 7 p.m. 64.08 15.80 56.83 0.00 02Dec2017 8 p.m. 51.24 2.50 69.22 0.00 02Dec2017 9 p.m. 48.96 2.60 75.01 0.00 02Dec2017 10 p.m. 47.34 0.90 80.59 0.00 02Dec2017 11 p.m. 44.94 0.60 86.10 0.00 03Dec2017 12 a.m. 41.88 1.00 94.11 0.00 03Dec2017 1 a.m. 39.31 3.90 95.50 0.00 03Dec2017 2 a.m. 37.63 2.60 95.91 0.00 03Dec2017 3 a.m. 36.86 2.20 98.09 0.00 03Dec2017 4 a.m. 36.72 1.40 99.11 0.00 03Dec2017 5 a.m. 37.15 2.20 99.15 0.00 03Dec2017 6 a.m. 37.27 3.40 99.14 0.00 03Dec2017 7 a.m. 36.41 3.40 99.25 0.00 Accuml. Values 1120.49 98.30 1781.45 3166.10 Num. Valid Values 24 24 24 24 Avg. Values 46.69 4.10 74.23 131.92 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 8.16 158.16 74.23 272.22 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.2577 definition: xcompl = 1 - (RELH_avg/100) TdC = 3.8836 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 = 0.5282 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4718 definition: del_lambda2 = 1 - del_lambda1 Qn = 1.8474 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 = 2.7842 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 2.1635 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.079 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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