Detailed Weather Data for Project: PINE

Date Time TAIR WSPD RELH SRAD 05Dec2017 8 a.m. 47.43 11.40 47.73 0.10 05Dec2017 9 a.m. 46.15 14.00 48.58 69.80 05Dec2017 10 a.m. 46.76 14.10 47.28 212.20 05Dec2017 11 a.m. 46.80 13.90 42.13 227.40 05Dec2017 12 p.m. 47.08 10.20 39.63 148.80 05Dec2017 1 p.m. 47.70 11.90 36.98 286.80 05Dec2017 2 p.m. 46.69 16.90 35.94 169.50 05Dec2017 3 p.m. 45.90 13.00 38.18 138.60 05Dec2017 4 p.m. 46.42 10.80 35.83 160.10 05Dec2017 5 p.m. 45.75 9.30 36.34 44.50 05Dec2017 6 p.m. 44.62 6.20 38.88 0.00 05Dec2017 7 p.m. 46.29 0.30 62.29 0.00 05Dec2017 8 p.m. 43.32 5.80 39.74 0.00 05Dec2017 9 p.m. 42.67 5.90 43.46 0.00 05Dec2017 10 p.m. 42.53 6.90 42.89 0.00 05Dec2017 11 p.m. 42.37 4.90 44.44 0.00 06Dec2017 12 a.m. 41.83 3.30 47.52 0.00 06Dec2017 1 a.m. 41.58 6.10 47.37 0.00 06Dec2017 2 a.m. 41.36 8.70 49.23 0.00 06Dec2017 3 a.m. 40.01 2.60 54.92 0.00 06Dec2017 4 a.m. 38.77 1.00 63.33 0.00 06Dec2017 5 a.m. 37.51 0.90 73.21 0.00 06Dec2017 6 a.m. 37.89 1.80 76.85 0.00 06Dec2017 7 a.m. 38.77 3.70 58.90 0.00 Accuml. Values 1046.17 183.60 1151.65 1457.80 Num. Valid Values 24 24 24 24 Avg. Values 43.59 7.65 47.99 60.74 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 6.44 295.41 47.99 125.34 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.5201 definition: xcompl = 1 - (RELH_avg/100) TdC = -3.8325 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 = 0.5024 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4976 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.1928 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 = 5.0567 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 5.3148 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.108 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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