Detailed Weather Data for Project: OOLO

Date Time TAIR WSPD RELH SRAD 06Dec2017 8 a.m. 32.45 2.20 59.46 14.50 06Dec2017 9 a.m. 33.39 3.60 58.62 161.60 06Dec2017 10 a.m. 37.94 2.30 54.23 325.50 06Dec2017 11 a.m. 43.20 1.20 45.86 454.30 06Dec2017 12 p.m. 47.14 2.80 42.18 342.50 06Dec2017 1 p.m. 50.41 6.40 34.10 49.10 06Dec2017 2 p.m. 52.09 7.40 30.57 94.90 06Dec2017 3 p.m. 53.01 9.40 28.80 284.40 06Dec2017 4 p.m. 53.69 8.80 28.40 215.30 06Dec2017 5 p.m. 52.38 8.90 31.40 53.90 06Dec2017 6 p.m. 47.98 6.20 39.45 0.00 06Dec2017 7 p.m. 31.05 5.50 42.57 0.00 06Dec2017 8 p.m. 43.90 3.20 42.11 0.00 06Dec2017 9 p.m. 43.30 3.60 42.41 0.00 06Dec2017 10 p.m. 40.82 4.70 45.27 0.00 06Dec2017 11 p.m. 39.88 6.40 42.93 0.00 07Dec2017 12 a.m. 36.77 8.70 54.21 0.00 07Dec2017 1 a.m. 33.87 7.90 63.35 0.00 07Dec2017 2 a.m. 33.53 10.90 64.20 0.00 07Dec2017 3 a.m. 31.78 9.90 58.35 0.00 07Dec2017 4 a.m. 30.67 8.80 55.62 0.00 07Dec2017 5 a.m. 27.97 12.90 56.38 0.00 07Dec2017 6 a.m. 25.99 10.30 60.38 0.00 07Dec2017 7 a.m. 24.58 9.30 63.75 0.00 Accuml. Values 947.78 161.30 1144.60 1996.00 Num. Valid Values 24 24 24 24 Avg. Values 39.49 6.72 47.69 83.17 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 4.16 259.53 47.69 171.62 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.5231 definition: xcompl = 1 - (RELH_avg/100) TdC = -6.0146 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 = 0.4677 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5323 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.6121 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 = 4.3460 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 4.2725 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.101 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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