Detailed Weather Data for Project: DENI

Date Time TAIR WSPD RELH SRAD 04Nov2017 8 a.m. 64.18 1.97 99.27 2.00 04Nov2017 9 a.m. 65.71 3.96 99.94 30.00 04Nov2017 10 a.m. 71.76 4.87 88.58 120.00 04Nov2017 11 a.m. 74.50 6.34 82.91 139.00 04Nov2017 12 p.m. 78.35 17.35 71.98 561.00 04Nov2017 1 p.m. 79.77 25.05 66.42 680.00 04Nov2017 2 p.m. 81.21 19.71 60.50 692.00 04Nov2017 3 p.m. 83.30 16.78 55.86 487.00 04Nov2017 4 p.m. 84.60 13.73 51.28 420.00 04Nov2017 5 p.m. 84.83 11.86 49.21 172.00 04Nov2017 6 p.m. 84.27 8.86 51.15 119.00 04Nov2017 7 p.m. 80.55 6.49 61.42 1.00 04Nov2017 8 p.m. 75.83 12.20 42.06 0.00 04Nov2017 9 p.m. 77.81 8.20 69.41 0.00 04Nov2017 10 p.m. 77.68 6.84 69.11 0.00 04Nov2017 11 p.m. 77.14 7.12 70.02 0.00 05Nov2017 12 a.m. 76.37 7.44 74.36 0.00 05Nov2017 1 a.m. 76.26 13.19 75.89 0.00 05Nov2017 2 a.m. 76.14 16.20 77.16 0.00 05Nov2017 3 a.m. 75.49 13.37 79.49 0.00 05Nov2017 4 a.m. 75.15 11.45 79.66 0.00 05Nov2017 5 a.m. 74.28 11.62 82.48 0.00 05Nov2017 6 a.m. 73.74 13.17 83.15 0.00 05Nov2017 7 a.m. 73.08 14.02 84.92 3.00 Accuml. Values 1842.01 271.79 1726.23 3426.00 Num. Valid Values 24 24 24 24 Avg. Values 76.75 11.32 71.93 142.75 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 24.86 437.31 71.93 294.57 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.2807 definition: xcompl = 1 - (RELH_avg/100) TdC = 19.5578 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 = 0.7395 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.2605 definition: del_lambda2 = 1 - del_lambda1 Qn = 3.0915 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 = 8.6595 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 11.2828 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.206 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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