Detailed Weather Data for Project: OOLO

Date Time TAIR WSPD RELH SRAD 29Dec2017 8 a.m. 31.50 2.10 60.02 0.00 29Dec2017 9 a.m. 32.02 2.70 59.23 13.10 29Dec2017 10 a.m. 32.47 3.80 58.92 35.60 29Dec2017 11 a.m. 33.31 4.40 57.50 63.70 29Dec2017 12 p.m. 34.34 5.10 56.75 121.90 29Dec2017 1 p.m. 36.45 4.80 55.38 140.60 29Dec2017 2 p.m. 39.34 6.30 51.07 185.40 29Dec2017 3 p.m. 41.58 8.90 55.27 241.20 29Dec2017 4 p.m. 42.57 9.30 57.10 248.70 29Dec2017 5 p.m. 42.71 6.10 57.89 51.60 29Dec2017 6 p.m. 40.91 2.30 64.78 0.00 29Dec2017 7 p.m. 25.12 9.90 55.78 0.00 29Dec2017 8 p.m. 39.83 0.40 74.50 0.00 29Dec2017 9 p.m. 40.06 0.90 75.77 0.00 29Dec2017 10 p.m. 39.99 1.70 76.61 0.00 29Dec2017 11 p.m. 39.67 2.60 76.35 0.00 30Dec2017 12 a.m. 39.52 1.50 77.79 0.00 30Dec2017 1 a.m. 39.31 3.20 77.17 0.00 30Dec2017 2 a.m. 38.95 3.20 76.43 0.00 30Dec2017 3 a.m. 38.19 6.60 78.04 0.00 30Dec2017 4 a.m. 36.18 11.40 79.00 0.00 30Dec2017 5 a.m. 29.82 13.20 82.61 0.00 30Dec2017 6 a.m. 26.67 11.30 85.58 0.00 30Dec2017 7 a.m. 24.84 9.10 86.05 0.00 Accuml. Values 865.34 130.80 1635.59 1101.80 Num. Valid Values 24 24 24 24 Avg. Values 36.06 5.45 68.15 45.91 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 2.25 210.46 68.15 94.73 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3185 definition: xcompl = 1 - (RELH_avg/100) TdC = -2.9772 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 = 0.4383 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5617 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.1731 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 = 2.2904 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 2.1365 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.044 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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