Detailed Weather Data for Project: KEMP

Date Time TAIR WSPD RELH SRAD 04Nov2017 8 a.m. 63.30 17.40 83.40 0.00 04Nov2017 9 a.m. 65.73 18.42 83.53 15.00 04Nov2017 10 a.m. 68.25 19.13 74.06 263.00 04Nov2017 11 a.m. 69.89 19.18 62.82 201.00 04Nov2017 12 p.m. 75.40 15.31 48.78 359.00 04Nov2017 1 p.m. 76.71 15.20 44.27 639.00 04Nov2017 2 p.m. 78.26 15.87 40.73 612.00 04Nov2017 3 p.m. 80.46 14.23 35.96 598.00 04Nov2017 4 p.m. 82.54 14.19 24.61 376.00 04Nov2017 5 p.m. 84.29 12.04 26.74 140.00 04Nov2017 6 p.m. 82.65 10.93 25.28 85.00 04Nov2017 7 p.m. 80.56 5.23 30.71 20.00 04Nov2017 8 p.m. 67.71 12.92 44.02 1.00 04Nov2017 9 p.m. 72.77 7.24 44.33 0.00 04Nov2017 10 p.m. 76.95 12.19 30.83 0.00 04Nov2017 11 p.m. 73.42 11.45 36.57 0.00 05Nov2017 12 a.m. 68.92 8.00 46.10 0.00 05Nov2017 1 a.m. 70.12 11.32 39.14 0.00 05Nov2017 2 a.m. 68.14 13.69 43.66 0.00 05Nov2017 3 a.m. 68.90 14.18 41.51 0.00 05Nov2017 4 a.m. 66.06 11.29 49.46 0.00 05Nov2017 5 a.m. 64.40 7.66 50.86 0.00 05Nov2017 6 a.m. 65.07 13.36 51.41 0.00 05Nov2017 7 a.m. 67.15 12.48 52.75 1.00 Accuml. Values 1737.66 312.91 1111.53 3310.00 Num. Valid Values 24 24 24 24 Avg. Values 72.40 13.04 46.31 137.92 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 22.45 503.47 46.31 284.59 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.5369 definition: xcompl = 1 - (RELH_avg/100) TdC = 10.3548 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 = 0.7143 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.2857 definition: del_lambda2 = 1 - del_lambda1 Qn = 2.7859 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 = 14.5842 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 19.8788 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.302 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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