Detailed Weather Data for Project: OOLO

Date Time TAIR WSPD RELH SRAD 30Dec2017 8 a.m. 23.27 12.00 86.82 0.00 30Dec2017 9 a.m. 22.03 11.70 84.99 0.00 30Dec2017 10 a.m. 21.49 10.50 82.86 14.50 30Dec2017 11 a.m. 21.36 10.40 79.19 39.10 30Dec2017 12 p.m. 21.34 8.70 74.84 63.70 30Dec2017 1 p.m. 20.89 9.80 71.44 83.50 30Dec2017 2 p.m. 21.43 8.30 69.75 95.40 30Dec2017 3 p.m. 21.97 8.40 65.74 79.20 30Dec2017 4 p.m. 22.32 7.30 62.44 49.70 30Dec2017 5 p.m. 23.25 6.00 60.06 9.70 30Dec2017 6 p.m. 24.30 6.60 57.30 0.00 30Dec2017 7 p.m. 15.55 10.40 47.06 0.00 30Dec2017 8 p.m. 25.05 6.40 55.55 0.00 30Dec2017 9 p.m. 24.67 5.90 54.84 0.00 30Dec2017 10 p.m. 23.85 6.90 53.92 0.00 30Dec2017 11 p.m. 23.31 6.90 56.03 0.00 31Dec2017 12 a.m. 21.97 6.90 57.03 0.00 31Dec2017 1 a.m. 20.73 8.80 59.33 0.00 31Dec2017 2 a.m. 18.36 10.70 57.11 0.00 31Dec2017 3 a.m. 15.93 11.10 61.60 0.00 31Dec2017 4 a.m. 14.88 11.40 60.99 0.00 31Dec2017 5 a.m. 14.56 10.80 62.85 0.00 31Dec2017 6 a.m. 14.34 10.40 59.48 0.00 31Dec2017 7 a.m. 14.27 10.10 57.20 0.00 Accuml. Values 491.12 216.40 1538.42 434.80 Num. Valid Values 24 24 24 24 Avg. Values 20.46 9.02 64.10 18.12 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values -6.41 348.19 64.10 37.38 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3590 definition: xcompl = 1 - (RELH_avg/100) TdC = -12.0549 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 = 0.3071 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.6929 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.7296 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 = 1.3669 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 1.8824 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.043 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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