Detailed Weather Data for Project: TENK

Date Time TAIR WSPD RELH SRAD 04Mar2018 8 a.m. 49.77 11.46 65.75 47.50 04Mar2018 9 a.m. 50.90 11.71 62.67 97.33 04Mar2018 10 a.m. 51.89 12.36 60.50 106.00 04Mar2018 11 a.m. 53.72 14.61 58.67 268.00 04Mar2018 12 p.m. 53.55 15.60 60.75 200.75 04Mar2018 1 p.m. 53.30 15.88 63.00 183.67 04Mar2018 2 p.m. 53.33 14.60 64.75 190.50 04Mar2018 3 p.m. 53.87 11.41 65.75 178.50 04Mar2018 4 p.m. 54.00 12.14 67.50 163.00 04Mar2018 5 p.m. 54.18 12.86 68.25 101.00 04Mar2018 6 p.m. 53.24 16.78 71.00 8.00 04Mar2018 7 p.m. 52.52 12.75 77.00 0.00 04Mar2018 8 p.m. 50.72 16.33 88.00 0.00 04Mar2018 9 p.m. 50.00 15.43 89.00 0.00 04Mar2018 10 p.m. 50.18 16.22 86.50 0.00 04Mar2018 11 p.m. 50.22 15.55 85.25 0.00 05Mar2018 12 a.m. 50.40 16.50 82.75 0.00 05Mar2018 1 a.m. 51.35 13.81 79.50 0.00 05Mar2018 2 a.m. 51.53 12.81 79.75 0.00 05Mar2018 3 a.m. 51.80 13.79 81.00 0.00 05Mar2018 4 a.m. 52.29 15.27 84.00 0.00 05Mar2018 5 a.m. 52.70 16.44 88.00 0.00 05Mar2018 6 a.m. 54.23 14.20 89.25 0.00 05Mar2018 7 a.m. 54.95 10.29 92.00 7.50 Accuml. Values 1254.64 338.80 1810.59 1551.75 Num. Valid Values 24 24 24 24 Avg. Values 52.28 14.12 75.44 64.66 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 11.26 545.13 75.44 133.42 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.2456 definition: xcompl = 1 - (RELH_avg/100) TdC = 7.1221 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 = 0.5734 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4266 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.3846 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 = 3.2604 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 5.6610 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.104 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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