Detailed Weather Data for Project: CANT

Date Time TAIR WSPD RELH SRAD 06Nov2017 8 a.m. 41.94 3.60 88.30 5.10 06Nov2017 9 a.m. 42.46 2.30 87.51 45.50 06Nov2017 10 a.m. 42.69 1.70 86.37 81.00 06Nov2017 11 a.m. 43.03 1.20 86.47 141.90 06Nov2017 12 p.m. 43.74 1.40 85.13 202.60 06Nov2017 1 p.m. 44.92 1.10 79.87 256.80 06Nov2017 2 p.m. 46.33 1.50 74.35 280.70 06Nov2017 3 p.m. 47.80 2.00 69.58 353.80 06Nov2017 4 p.m. 48.36 2.20 67.46 225.30 06Nov2017 5 p.m. 48.42 1.40 65.73 110.90 06Nov2017 6 p.m. 47.62 1.40 63.66 5.50 06Nov2017 7 p.m. 44.38 4.50 56.09 0.00 06Nov2017 8 p.m. 43.29 1.00 76.20 0.00 06Nov2017 9 p.m. 42.19 0.80 78.91 0.00 06Nov2017 10 p.m. 42.49 0.90 79.22 0.00 06Nov2017 11 p.m. 42.15 1.50 80.35 0.00 07Nov2017 12 a.m. 43.30 3.00 78.71 0.00 07Nov2017 1 a.m. 42.76 2.10 82.11 0.00 07Nov2017 2 a.m. 41.52 2.00 85.76 0.00 07Nov2017 3 a.m. 42.60 1.60 84.14 0.00 07Nov2017 4 a.m. 42.37 1.40 84.18 0.00 07Nov2017 5 a.m. 40.91 1.70 81.55 0.00 07Nov2017 6 a.m. 39.83 2.20 80.43 0.00 07Nov2017 7 a.m. 39.06 2.10 78.36 0.00 Accuml. Values 1044.17 44.60 1880.44 1709.10 Num. Valid Values 24 24 24 24 Avg. Values 43.51 1.86 78.35 71.21 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 6.39 71.76 78.35 146.95 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.2165 definition: xcompl = 1 - (RELH_avg/100) TdC = 2.9181 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 = 0.5017 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4983 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.4132 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 = 2.0800 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 1.1965 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.032 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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