Detailed Weather Data for Project: PINE

Date Time TAIR WSPD RELH SRAD 03Dec2017 8 a.m. 52.32 2.70 97.67 8.40 03Dec2017 9 a.m. 54.90 4.40 93.37 98.40 03Dec2017 10 a.m. 60.46 7.90 82.42 228.70 03Dec2017 11 a.m. 63.64 7.30 75.80 219.30 03Dec2017 12 p.m. 66.16 10.80 67.74 307.80 03Dec2017 1 p.m. 68.67 9.10 61.73 249.40 03Dec2017 2 p.m. 72.90 9.80 53.30 480.70 03Dec2017 3 p.m. 74.57 12.20 50.68 373.30 03Dec2017 4 p.m. 74.73 12.60 50.49 160.80 03Dec2017 5 p.m. 73.83 8.70 51.59 50.80 03Dec2017 6 p.m. 70.61 7.00 56.51 0.00 03Dec2017 7 p.m. 72.46 8.60 74.54 0.00 03Dec2017 8 p.m. 68.18 7.50 61.14 0.00 03Dec2017 9 p.m. 65.93 6.30 65.86 0.00 03Dec2017 10 p.m. 65.30 7.20 65.41 0.00 03Dec2017 11 p.m. 66.24 9.10 59.51 0.00 04Dec2017 12 a.m. 63.66 7.50 65.86 0.00 04Dec2017 1 a.m. 61.61 6.80 70.58 0.00 04Dec2017 2 a.m. 60.46 8.10 72.40 0.00 04Dec2017 3 a.m. 60.48 8.10 73.80 0.00 04Dec2017 4 a.m. 60.22 9.10 77.53 0.00 04Dec2017 5 a.m. 60.10 9.30 85.42 0.00 04Dec2017 6 a.m. 60.42 7.60 90.10 0.00 04Dec2017 7 a.m. 61.27 6.70 92.78 0.00 Accuml. Values 1559.12 194.40 1696.23 2177.60 Num. Valid Values 24 24 24 24 Avg. Values 64.96 8.10 70.68 90.73 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 18.31 312.79 70.68 187.23 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.2932 definition: xcompl = 1 - (RELH_avg/100) TdC = 12.9764 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 = 0.6667 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3333 definition: del_lambda2 = 1 - del_lambda1 Qn = 1.2503 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 = 6.0920 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 6.5086 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.118 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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