Detailed Weather Data for Project: FSUP

Date Time TAIR WSPD RELH SRAD 05Nov2017 8 a.m. 43.93 7.10 93.64 0.20 05Nov2017 9 a.m. 44.26 6.40 96.96 1.30 05Nov2017 10 a.m. 44.56 6.40 95.41 52.90 05Nov2017 11 a.m. 45.34 6.00 92.05 67.50 05Nov2017 12 p.m. 46.63 4.90 85.68 111.40 05Nov2017 1 p.m. 47.19 3.80 82.59 122.40 05Nov2017 2 p.m. 45.34 4.50 83.40 119.40 05Nov2017 3 p.m. 45.54 4.60 78.97 142.60 05Nov2017 4 p.m. 45.64 3.30 75.17 110.30 05Nov2017 5 p.m. 45.28 2.60 73.63 59.80 05Nov2017 6 p.m. 45.23 2.80 74.66 2.40 05Nov2017 7 p.m. 40.66 2.30 69.77 0.00 05Nov2017 8 p.m. 44.33 3.50 76.17 0.00 05Nov2017 9 p.m. 44.04 3.90 75.93 0.00 05Nov2017 10 p.m. 43.68 4.00 75.92 0.00 05Nov2017 11 p.m. 41.90 2.90 76.03 0.00 06Nov2017 12 a.m. 40.03 0.10 80.55 0.00 06Nov2017 1 a.m. 38.37 1.20 84.76 0.00 06Nov2017 2 a.m. 37.78 0.50 86.63 0.00 06Nov2017 3 a.m. 36.30 2.40 90.43 0.00 06Nov2017 4 a.m. 34.66 2.00 94.92 0.00 06Nov2017 5 a.m. 33.53 4.20 97.32 0.00 06Nov2017 6 a.m. 32.86 4.00 98.86 0.00 06Nov2017 7 a.m. 32.79 3.90 97.84 0.00 Accuml. Values 999.89 87.30 2037.29 790.20 Num. Valid Values 24 24 24 24 Avg. Values 41.66 3.64 84.89 32.92 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 5.37 140.47 84.89 67.94 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.1511 definition: xcompl = 1 - (RELH_avg/100) TdC = 3.0201 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 = 0.4862 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5138 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.3893 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 = 1.3648 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 1.0878 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.015 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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