Detailed Weather Data for Project: DENI

Date Time TAIR WSPD RELH SRAD 05Nov2017 8 a.m. 73.40 12.90 83.27 83.00 05Nov2017 9 a.m. 75.16 15.54 78.82 278.00 05Nov2017 10 a.m. 77.68 21.97 72.10 487.00 05Nov2017 11 a.m. 79.90 20.54 63.74 645.00 05Nov2017 12 p.m. 81.97 19.20 57.01 708.00 05Nov2017 1 p.m. 85.15 14.87 48.96 690.00 05Nov2017 2 p.m. 87.13 11.46 39.31 465.00 05Nov2017 3 p.m. 88.88 13.28 34.24 495.00 05Nov2017 4 p.m. 88.47 10.87 35.23 305.00 05Nov2017 5 p.m. 83.19 4.49 41.27 113.00 05Nov2017 6 p.m. 80.53 5.16 41.26 2.00 05Nov2017 7 p.m. 58.91 8.42 78.69 0.00 05Nov2017 8 p.m. 67.80 9.48 55.86 1.00 05Nov2017 9 p.m. 64.49 8.29 62.93 0.00 05Nov2017 10 p.m. 61.52 8.84 72.09 0.00 05Nov2017 11 p.m. 59.02 9.43 74.18 0.00 06Nov2017 12 a.m. 57.45 8.08 76.06 0.00 06Nov2017 1 a.m. 56.48 5.55 78.50 0.00 06Nov2017 2 a.m. 55.60 4.62 81.93 0.00 06Nov2017 3 a.m. 54.82 3.13 82.35 0.00 06Nov2017 4 a.m. 54.72 3.95 83.99 0.00 06Nov2017 5 a.m. 55.06 1.12 82.42 0.00 06Nov2017 6 a.m. 55.06 3.16 80.89 0.00 06Nov2017 7 a.m. 56.03 6.04 82.41 1.00 Accuml. Values 1658.42 230.39 1587.51 4273.00 Num. Valid Values 24 24 24 24 Avg. Values 69.10 9.60 66.15 178.04 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 20.61 370.70 66.15 367.39 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3385 definition: xcompl = 1 - (RELH_avg/100) TdC = 14.1731 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 = 0.6938 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3062 definition: del_lambda2 = 1 - del_lambda1 Qn = 3.8514 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 = 8.1109 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 9.4325 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.219 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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