Detailed Weather Data for Project: KEMP

Date Time TAIR WSPD RELH SRAD 05Nov2017 8 a.m. 66.38 16.46 57.70 7.00 05Nov2017 9 a.m. 72.10 15.42 44.14 152.00 05Nov2017 10 a.m. 77.49 16.61 36.15 385.00 05Nov2017 11 a.m. 83.32 15.95 29.37 559.00 05Nov2017 12 p.m. 86.05 16.98 22.96 679.00 05Nov2017 1 p.m. 87.37 14.08 19.84 735.00 05Nov2017 2 p.m. 87.60 12.68 20.45 718.00 05Nov2017 3 p.m. 88.03 9.88 20.03 618.00 05Nov2017 4 p.m. 87.60 5.82 21.06 479.00 05Nov2017 5 p.m. 87.58 9.87 21.67 303.00 05Nov2017 6 p.m. 73.09 7.11 35.90 94.00 05Nov2017 7 p.m. 55.18 5.29 60.63 0.00 05Nov2017 8 p.m. 62.55 12.30 54.04 0.00 05Nov2017 9 p.m. 60.01 8.72 60.20 0.00 05Nov2017 10 p.m. 57.47 8.65 66.79 0.00 05Nov2017 11 p.m. 54.84 10.37 71.86 0.00 06Nov2017 12 a.m. 51.44 7.35 77.91 0.00 06Nov2017 1 a.m. 49.46 8.51 80.78 0.00 06Nov2017 2 a.m. 47.91 8.07 82.91 0.00 06Nov2017 3 a.m. 47.16 6.01 84.99 0.00 06Nov2017 4 a.m. 48.25 5.32 82.79 1.00 06Nov2017 5 a.m. 48.69 6.58 80.84 0.00 06Nov2017 6 a.m. 48.92 6.62 79.13 0.00 06Nov2017 7 a.m. 49.03 7.99 78.28 1.00 Accuml. Values 1577.53 242.64 1290.42 4731.00 Num. Valid Values 24 24 24 24 Avg. Values 65.73 10.11 53.77 197.13 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 18.74 390.41 53.77 406.77 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.4623 definition: xcompl = 1 - (RELH_avg/100) TdC = 9.2242 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 = 0.6718 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3282 definition: del_lambda2 = 1 - del_lambda1 Qn = 4.2730 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 = 9.9614 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 11.7345 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.265 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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