Detailed Weather Data for Project: CANT

Date Time TAIR WSPD RELH SRAD 05Nov2017 8 a.m. 60.12 1.00 51.38 94.50 05Nov2017 9 a.m. 56.07 2.30 67.47 197.40 05Nov2017 10 a.m. 53.11 2.30 80.15 128.40 05Nov2017 11 a.m. 52.52 2.00 86.38 78.40 05Nov2017 12 p.m. 53.19 1.80 87.00 109.40 05Nov2017 1 p.m. 54.36 1.80 82.64 180.60 05Nov2017 2 p.m. 54.70 2.00 79.80 233.90 05Nov2017 3 p.m. 54.32 2.00 79.61 129.30 05Nov2017 4 p.m. 52.16 2.00 82.80 57.00 05Nov2017 5 p.m. 50.70 2.90 83.06 22.60 05Nov2017 6 p.m. 50.20 3.40 80.76 0.10 05Nov2017 7 p.m. 45.43 0.80 69.18 0.00 05Nov2017 8 p.m. 50.49 3.50 77.28 0.00 05Nov2017 9 p.m. 49.73 2.40 75.60 0.00 05Nov2017 10 p.m. 48.63 1.80 75.30 0.00 05Nov2017 11 p.m. 46.78 2.30 74.13 0.00 06Nov2017 12 a.m. 45.66 1.60 75.56 0.00 06Nov2017 1 a.m. 44.78 1.70 77.25 0.00 06Nov2017 2 a.m. 44.65 1.80 79.91 0.00 06Nov2017 3 a.m. 43.72 2.70 83.44 0.00 06Nov2017 4 a.m. 42.96 3.70 86.10 0.00 06Nov2017 5 a.m. 42.19 4.40 88.23 0.00 06Nov2017 6 a.m. 41.63 4.10 89.71 0.00 06Nov2017 7 a.m. 42.06 3.60 87.94 0.00 Accuml. Values 1180.15 57.90 1900.68 1231.60 Num. Valid Values 24 24 24 24 Avg. Values 49.17 2.41 79.20 51.32 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 9.54 93.16 79.20 105.89 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.2080 definition: xcompl = 1 - (RELH_avg/100) TdC = 6.1347 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 = 0.5485 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4515 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.0509 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 = 2.4714 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 1.5302 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.028 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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