Detailed Weather Data for Project: PINE

Date Time TAIR WSPD RELH SRAD 06Nov2017 8 a.m. 62.40 2.90 88.90 0.00 06Nov2017 9 a.m. 64.51 4.30 90.15 19.60 06Nov2017 10 a.m. 68.23 5.70 91.29 54.30 06Nov2017 11 a.m. 70.52 4.10 88.60 74.70 06Nov2017 12 p.m. 72.99 4.00 83.82 149.50 06Nov2017 1 p.m. 72.99 6.60 80.88 98.40 06Nov2017 2 p.m. 70.03 6.50 80.88 152.70 06Nov2017 3 p.m. 68.50 8.30 82.76 90.00 06Nov2017 4 p.m. 67.57 6.80 80.89 79.10 06Nov2017 5 p.m. 65.73 6.10 81.38 15.60 06Nov2017 6 p.m. 63.23 5.60 81.37 0.00 06Nov2017 7 p.m. 50.47 10.10 84.66 0.00 06Nov2017 8 p.m. 59.41 5.30 88.21 0.00 06Nov2017 9 p.m. 58.10 6.20 89.27 0.00 06Nov2017 10 p.m. 56.61 9.00 90.48 0.00 06Nov2017 11 p.m. 55.63 8.90 90.03 0.00 07Nov2017 12 a.m. 54.63 8.70 89.05 0.00 07Nov2017 1 a.m. 53.74 7.10 88.63 0.00 07Nov2017 2 a.m. 53.78 3.80 86.87 0.00 07Nov2017 3 a.m. 53.69 3.50 85.90 0.00 07Nov2017 4 a.m. 52.95 2.70 86.35 0.00 07Nov2017 5 a.m. 52.36 2.60 87.70 0.00 07Nov2017 6 a.m. 51.49 4.10 90.21 0.00 07Nov2017 7 a.m. 51.24 6.50 90.60 0.00 Accuml. Values 1450.81 139.40 2078.88 733.90 Num. Valid Values 24 24 24 24 Avg. Values 60.45 5.81 86.62 30.58 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 15.81 224.29 86.62 63.10 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.1338 definition: xcompl = 1 - (RELH_avg/100) TdC = 13.5753 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 = 0.6351 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3649 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.3171 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 = 2.4070 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 2.3188 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.025 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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