Detailed Weather Data for Project: KEMP

Date Time TAIR WSPD RELH SRAD 06Nov2017 8 a.m. 48.79 6.44 75.89 6.00 06Nov2017 9 a.m. 50.02 6.08 71.80 60.00 06Nov2017 10 a.m. 51.22 6.66 66.86 142.00 06Nov2017 11 a.m. 53.10 6.38 61.73 367.00 06Nov2017 12 p.m. 58.80 6.51 50.62 664.00 06Nov2017 1 p.m. 59.68 5.45 47.99 585.00 06Nov2017 2 p.m. 61.56 6.08 44.88 518.00 06Nov2017 3 p.m. 62.98 5.06 43.41 595.00 06Nov2017 4 p.m. 63.86 4.27 42.86 387.00 06Nov2017 5 p.m. 61.77 3.96 46.40 203.00 06Nov2017 6 p.m. 58.91 4.22 52.39 37.00 06Nov2017 7 p.m. 48.47 10.34 41.82 0.00 06Nov2017 8 p.m. 53.74 4.49 64.10 0.00 06Nov2017 9 p.m. 52.97 5.16 67.83 0.00 06Nov2017 10 p.m. 49.91 2.92 74.92 0.00 06Nov2017 11 p.m. 49.24 3.86 78.83 0.00 07Nov2017 12 a.m. 47.93 5.61 84.02 0.00 07Nov2017 1 a.m. 46.06 4.74 84.69 0.00 07Nov2017 2 a.m. 44.19 5.50 82.18 1.00 07Nov2017 3 a.m. 42.53 5.94 85.24 0.00 07Nov2017 4 a.m. 41.43 6.16 88.47 1.00 07Nov2017 5 a.m. 43.74 5.53 79.06 1.00 07Nov2017 6 a.m. 44.19 8.72 75.83 0.00 07Nov2017 7 a.m. 44.19 8.80 76.02 0.00 Accuml. Values 1239.28 138.88 1587.84 3567.00 Num. Valid Values 24 24 24 24 Avg. Values 51.64 5.79 66.16 148.63 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 10.91 223.46 66.16 306.69 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3384 definition: xcompl = 1 - (RELH_avg/100) TdC = 4.9019 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 = 0.5683 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4317 definition: del_lambda2 = 1 - del_lambda1 Qn = 2.3967 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 = 4.3906 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 3.9265 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.120 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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