Detailed Weather Data for Project: CANT

Date Time TAIR WSPD RELH SRAD 07Nov2017 8 a.m. 39.02 2.40 76.09 39.10 07Nov2017 9 a.m. 40.62 1.80 73.70 189.70 07Nov2017 10 a.m. 41.09 2.20 75.40 151.80 07Nov2017 11 a.m. 41.54 2.50 76.32 109.90 07Nov2017 12 p.m. 42.66 3.20 76.18 98.70 07Nov2017 1 p.m. 43.38 3.20 71.78 191.50 07Nov2017 2 p.m. 45.84 3.50 61.98 331.70 07Nov2017 3 p.m. 47.34 5.00 56.12 233.20 07Nov2017 4 p.m. 46.99 3.10 55.88 135.70 07Nov2017 5 p.m. 46.51 3.10 56.64 78.70 07Nov2017 6 p.m. 45.66 2.80 55.73 2.90 07Nov2017 7 p.m. 44.42 1.30 58.23 0.00 07Nov2017 8 p.m. 42.78 5.70 57.92 0.00 07Nov2017 9 p.m. 41.76 5.40 60.61 0.00 07Nov2017 10 p.m. 41.34 4.20 61.86 0.00 07Nov2017 11 p.m. 41.13 4.20 60.49 0.00 08Nov2017 12 a.m. 41.72 4.50 57.69 0.00 08Nov2017 1 a.m. 41.65 4.00 57.37 0.00 08Nov2017 2 a.m. 40.17 2.00 70.29 0.00 08Nov2017 3 a.m. 38.77 0.90 80.12 0.00 08Nov2017 4 a.m. 39.06 1.30 76.12 0.00 08Nov2017 5 a.m. 39.43 1.50 66.81 0.00 08Nov2017 6 a.m. 39.15 2.50 61.71 0.00 08Nov2017 7 a.m. 38.82 2.00 62.78 0.00 Accuml. Values 1010.84 72.30 1567.82 1562.90 Num. Valid Values 24 24 24 24 Avg. Values 42.12 3.01 65.33 65.12 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 5.62 116.33 65.33 134.38 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3467 definition: xcompl = 1 - (RELH_avg/100) TdC = -0.3287 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 = 0.4900 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5100 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.2678 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 = 3.1552 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 2.0818 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.047 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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