Detailed Weather Data for Project: OOLO

Date Time TAIR WSPD RELH SRAD 05Dec2017 8 a.m. 34.75 7.80 41.86 0.00 05Dec2017 9 a.m. 35.13 6.20 41.76 5.10 05Dec2017 10 a.m. 35.49 7.10 39.39 58.30 05Dec2017 11 a.m. 36.52 8.10 36.61 151.50 05Dec2017 12 p.m. 38.88 7.60 30.85 329.40 05Dec2017 1 p.m. 41.58 7.80 25.85 208.10 05Dec2017 2 p.m. 43.29 5.10 23.05 207.80 05Dec2017 3 p.m. 44.92 4.10 21.35 243.80 05Dec2017 4 p.m. 45.82 5.00 20.27 195.90 05Dec2017 5 p.m. 45.27 3.40 22.46 37.60 05Dec2017 6 p.m. 42.30 2.60 27.11 0.00 05Dec2017 7 p.m. 45.72 5.50 40.47 0.00 05Dec2017 8 p.m. 39.20 2.90 33.35 0.00 05Dec2017 9 p.m. 37.90 3.00 37.30 0.00 05Dec2017 10 p.m. 37.11 2.90 38.93 0.00 05Dec2017 11 p.m. 35.94 3.50 42.13 0.00 06Dec2017 12 a.m. 35.74 3.60 43.23 0.00 06Dec2017 1 a.m. 35.13 3.30 45.22 0.00 06Dec2017 2 a.m. 35.28 3.10 45.44 0.00 06Dec2017 3 a.m. 34.52 3.70 49.22 0.00 06Dec2017 4 a.m. 34.05 3.80 50.63 0.00 06Dec2017 5 a.m. 33.48 3.50 53.50 0.00 06Dec2017 6 a.m. 33.21 2.30 54.74 0.00 06Dec2017 7 a.m. 32.86 2.70 57.50 0.00 Accuml. Values 914.09 108.60 922.22 1437.50 Num. Valid Values 24 24 24 24 Avg. Values 38.09 4.53 38.43 59.90 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 3.38 174.74 38.43 123.60 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.6157 definition: xcompl = 1 - (RELH_avg/100) TdC = -9.5854 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 = 0.4557 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5443 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.1183 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 = 4.8562 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 3.7230 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.082 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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