Detailed Weather Data for Project: TENK

Date Time TAIR WSPD RELH SRAD 04Nov2017 8 a.m. 58.37 6.49 100.00 3.00 04Nov2017 9 a.m. 60.12 9.00 98.00 42.25 04Nov2017 10 a.m. 62.72 10.22 94.67 151.67 04Nov2017 11 a.m. 64.94 11.58 91.75 229.25 04Nov2017 12 p.m. 67.82 7.90 86.67 269.00 04Nov2017 1 p.m. 70.25 7.10 82.50 272.75 04Nov2017 2 p.m. 73.34 7.61 77.67 280.67 04Nov2017 3 p.m. 76.14 8.84 72.25 319.00 04Nov2017 4 p.m. 77.60 6.71 68.00 280.67 04Nov2017 5 p.m. 78.30 7.55 65.50 218.75 04Nov2017 6 p.m. 76.91 6.88 69.50 67.25 04Nov2017 7 p.m. 74.66 7.38 78.00 0.00 04Nov2017 8 p.m. 73.40 9.62 81.00 0.00 04Nov2017 9 p.m. 73.13 9.06 82.00 0.00 04Nov2017 10 p.m. 72.20 10.81 85.00 0.00 04Nov2017 11 p.m. 71.48 10.22 86.00 0.00 05Nov2017 12 a.m. 71.06 10.29 84.50 0.00 05Nov2017 1 a.m. 71.10 10.18 83.75 0.00 05Nov2017 2 a.m. 71.33 10.85 83.75 0.00 05Nov2017 3 a.m. 71.00 8.80 84.33 0.00 05Nov2017 4 a.m. 70.74 10.29 85.50 0.00 05Nov2017 5 a.m. 70.07 9.39 88.00 0.00 05Nov2017 6 a.m. 69.26 9.06 90.25 0.00 05Nov2017 7 a.m. 68.90 7.83 92.00 9.00 Accuml. Values 1694.84 213.66 2010.59 2143.26 Num. Valid Values 24 24 24 24 Avg. Values 70.62 8.90 83.77 89.30 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 21.45 343.78 83.77 184.28 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.1623 definition: xcompl = 1 - (RELH_avg/100) TdC = 18.6175 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 = 0.7033 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.2967 definition: del_lambda2 = 1 - del_lambda1 Qn = 1.3399 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 = 4.1145 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 4.9199 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.095 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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