Detailed Weather Data for Project: TENK

Date Time TAIR WSPD RELH SRAD 03Dec2017 8 a.m. 57.87 8.89 76.00 9.75 03Dec2017 9 a.m. 58.82 11.48 74.67 63.33 03Dec2017 10 a.m. 60.89 11.69 71.75 159.50 03Dec2017 11 a.m. 63.20 12.08 67.67 261.00 03Dec2017 12 p.m. 67.05 13.31 61.75 442.75 03Dec2017 1 p.m. 68.24 11.86 60.67 362.67 03Dec2017 2 p.m. 72.23 12.53 56.25 452.50 03Dec2017 3 p.m. 69.75 9.90 61.50 183.75 03Dec2017 4 p.m. 68.63 8.89 64.00 92.00 03Dec2017 5 p.m. 68.40 9.90 64.75 54.25 03Dec2017 6 p.m. 65.48 9.84 66.00 0.00 03Dec2017 7 p.m. 64.40 11.41 68.00 0.00 03Dec2017 8 p.m. 63.50 11.41 70.00 0.00 03Dec2017 9 p.m. 62.60 10.07 71.00 0.00 03Dec2017 10 p.m. 62.24 9.73 71.00 0.00 03Dec2017 11 p.m. 62.46 10.46 70.00 0.00 04Dec2017 12 a.m. 61.88 10.40 70.00 0.00 04Dec2017 1 a.m. 61.07 9.51 69.75 0.00 04Dec2017 2 a.m. 60.21 9.73 70.00 0.00 04Dec2017 3 a.m. 60.38 11.93 70.33 0.00 04Dec2017 4 a.m. 60.30 10.51 75.25 0.00 04Dec2017 5 a.m. 60.89 12.41 78.00 0.00 04Dec2017 6 a.m. 60.93 12.25 81.00 0.00 04Dec2017 7 a.m. 60.89 11.86 86.00 0.00 Accuml. Values 1522.31 262.05 1675.34 2081.50 Num. Valid Values 24 24 24 24 Avg. Values 63.43 10.92 69.81 86.73 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 17.46 421.64 69.81 178.97 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3019 definition: xcompl = 1 - (RELH_avg/100) TdC = 11.9703 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 = 0.6562 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3438 definition: del_lambda2 = 1 - del_lambda1 Qn = 1.1125 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 = 5.9504 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 7.8918 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.136 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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