Detailed Weather Data for Project: OOLO

Date Time TAIR WSPD RELH SRAD 07Nov2017 8 a.m. 42.15 7.50 94.96 3.40 07Nov2017 9 a.m. 42.44 8.70 93.38 28.70 07Nov2017 10 a.m. 42.80 7.50 92.73 35.70 07Nov2017 11 a.m. 43.21 8.60 89.48 60.40 07Nov2017 12 p.m. 43.18 9.10 89.67 65.50 07Nov2017 1 p.m. 42.58 7.50 93.16 91.20 07Nov2017 2 p.m. 43.23 8.50 90.21 62.00 07Nov2017 3 p.m. 44.58 8.30 85.46 52.30 07Nov2017 4 p.m. 46.08 7.00 79.55 27.60 07Nov2017 5 p.m. 46.49 8.40 76.23 2.30 07Nov2017 6 p.m. 45.91 8.00 76.77 0.00 07Nov2017 7 p.m. 51.26 2.30 49.98 0.00 07Nov2017 8 p.m. 44.46 10.50 81.32 0.00 07Nov2017 9 p.m. 44.58 10.50 82.07 0.00 07Nov2017 10 p.m. 44.02 7.50 77.17 0.00 07Nov2017 11 p.m. 45.43 9.60 69.30 0.00 08Nov2017 12 a.m. 45.34 9.10 67.46 0.00 08Nov2017 1 a.m. 45.18 9.80 68.25 0.00 08Nov2017 2 a.m. 45.12 12.00 69.22 0.00 08Nov2017 3 a.m. 45.03 8.30 70.06 0.00 08Nov2017 4 a.m. 44.94 7.40 70.78 0.00 08Nov2017 5 a.m. 42.80 7.20 72.22 0.00 08Nov2017 6 a.m. 41.18 8.10 71.51 0.00 08Nov2017 7 a.m. 40.39 7.10 69.96 0.00 Accuml. Values 1062.39 198.50 1880.90 429.10 Num. Valid Values 24 24 24 24 Avg. Values 44.27 8.27 78.37 17.88 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 6.81 319.39 78.37 36.89 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.2163 definition: xcompl = 1 - (RELH_avg/100) TdC = 3.3322 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 = 0.5081 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4919 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.6737 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 = 2.1386 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 2.6280 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.037 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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