Detailed Weather Data for Project: OOLO

Date Time TAIR WSPD RELH SRAD 04Mar2018 8 a.m. 56.07 6.20 47.24 15.10 04Mar2018 9 a.m. 56.44 6.40 47.43 53.20 04Mar2018 10 a.m. 57.07 5.30 48.87 108.40 04Mar2018 11 a.m. 57.34 7.30 49.77 101.10 04Mar2018 12 p.m. 57.47 6.60 50.09 104.50 04Mar2018 1 p.m. 57.31 8.00 50.90 97.10 04Mar2018 2 p.m. 57.70 7.50 53.73 136.50 04Mar2018 3 p.m. 57.36 7.70 59.01 106.80 04Mar2018 4 p.m. 56.34 5.90 60.07 24.20 04Mar2018 5 p.m. 56.14 8.80 60.44 78.80 04Mar2018 6 p.m. 56.10 8.90 64.12 24.30 04Mar2018 7 p.m. 55.90 6.10 19.23 1.50 04Mar2018 8 p.m. 56.03 7.90 68.86 0.00 04Mar2018 9 p.m. 55.45 8.90 73.96 0.00 04Mar2018 10 p.m. 55.20 7.00 76.23 0.00 04Mar2018 11 p.m. 55.08 7.80 76.07 0.00 05Mar2018 12 a.m. 55.00 8.50 73.16 0.00 05Mar2018 1 a.m. 54.91 6.60 72.51 0.00 05Mar2018 2 a.m. 55.00 6.60 73.24 0.00 05Mar2018 3 a.m. 55.54 6.60 73.97 0.00 05Mar2018 4 a.m. 55.87 6.80 76.11 0.00 05Mar2018 5 a.m. 57.07 6.90 78.53 0.00 05Mar2018 6 a.m. 58.21 5.00 81.92 0.00 05Mar2018 7 a.m. 58.64 4.00 86.10 0.00 Accuml. Values 1353.27 167.30 1521.56 851.50 Num. Valid Values 24 24 24 24 Avg. Values 56.39 6.97 63.40 35.48 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 13.55 269.19 63.40 73.21 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3660 definition: xcompl = 1 - (RELH_avg/100) TdC = 6.8004 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 = 0.6051 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3949 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.2349 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 = 5.6449 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 5.5065 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.080 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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