Detailed Weather Data for Project: CANT

Date Time TAIR WSPD RELH SRAD 04Mar2018 8 a.m. 58.98 8.50 91.17 11.90 04Mar2018 9 a.m. 59.52 8.30 93.42 57.70 04Mar2018 10 a.m. 59.85 7.60 96.72 85.00 04Mar2018 11 a.m. 61.05 7.10 94.77 116.70 04Mar2018 12 p.m. 61.16 8.50 95.46 129.40 04Mar2018 1 p.m. 60.42 6.60 99.61 64.50 04Mar2018 2 p.m. 60.39 8.70 100.24 104.70 04Mar2018 3 p.m. 62.38 9.50 95.58 132.60 04Mar2018 4 p.m. 63.36 9.30 93.65 101.80 04Mar2018 5 p.m. 63.95 9.40 94.64 40.30 04Mar2018 6 p.m. 63.14 10.10 98.85 5.50 04Mar2018 7 p.m. 55.85 1.10 16.24 5.90 04Mar2018 8 p.m. 63.82 9.20 95.95 0.00 04Mar2018 9 p.m. 64.47 9.40 92.88 0.00 04Mar2018 10 p.m. 64.92 11.00 90.93 0.00 04Mar2018 11 p.m. 64.96 10.90 92.48 0.00 05Mar2018 12 a.m. 64.90 9.20 93.43 0.00 05Mar2018 1 a.m. 64.08 8.70 94.07 0.00 05Mar2018 2 a.m. 63.39 9.90 87.81 0.00 05Mar2018 3 a.m. 61.65 7.20 82.57 0.00 05Mar2018 4 a.m. 58.66 4.50 46.63 0.00 05Mar2018 5 a.m. 51.30 4.00 44.72 0.00 05Mar2018 6 a.m. 49.33 4.00 48.56 0.00 05Mar2018 7 a.m. 47.53 3.10 50.72 0.00 Accuml. Values 1449.07 185.80 1991.10 856.00 Num. Valid Values 24 24 24 24 Avg. Values 60.38 7.74 82.96 35.67 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 15.77 298.95 82.96 73.60 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.1704 definition: xcompl = 1 - (RELH_avg/100) TdC = 12.8923 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 = 0.6346 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3654 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.1979 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 = 3.0389 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 3.4226 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.044 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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