Detailed Weather Data for Project: OOLO

Date Time TAIR WSPD RELH SRAD 05Mar2018 8 a.m. 57.06 13.20 73.07 69.70 05Mar2018 9 a.m. 51.62 15.00 56.53 304.00 05Mar2018 10 a.m. 54.59 15.50 43.05 511.40 05Mar2018 11 a.m. 55.56 16.10 37.92 674.20 05Mar2018 12 p.m. 56.03 14.00 35.88 774.40 05Mar2018 1 p.m. 57.69 15.60 27.11 819.50 05Mar2018 2 p.m. 59.09 14.20 18.60 662.70 05Mar2018 3 p.m. 60.44 12.90 15.10 701.00 05Mar2018 4 p.m. 60.64 13.10 13.53 397.40 05Mar2018 5 p.m. 60.08 12.10 14.17 321.90 05Mar2018 6 p.m. 58.71 12.10 15.24 129.40 05Mar2018 7 p.m. 42.93 17.30 40.18 0.80 05Mar2018 8 p.m. 53.37 3.90 21.48 0.00 05Mar2018 9 p.m. 51.75 3.30 22.89 0.00 05Mar2018 10 p.m. 50.72 1.50 24.95 0.00 05Mar2018 11 p.m. 48.36 2.80 26.36 0.00 06Mar2018 12 a.m. 46.80 3.20 29.01 0.00 06Mar2018 1 a.m. 44.44 3.90 37.53 0.00 06Mar2018 2 a.m. 41.34 2.80 46.83 0.00 06Mar2018 3 a.m. 40.42 3.30 49.01 0.00 06Mar2018 4 a.m. 42.22 4.70 39.48 0.00 06Mar2018 5 a.m. 41.36 5.00 38.61 0.00 06Mar2018 6 a.m. 40.46 5.10 41.16 0.00 06Mar2018 7 a.m. 39.45 5.60 40.50 0.10 Accuml. Values 1215.12 216.20 808.19 5366.50 Num. Valid Values 24 24 24 24 Avg. Values 50.63 9.01 33.67 223.60 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 10.35 347.87 33.67 461.41 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.6633 definition: xcompl = 1 - (RELH_avg/100) TdC = -5.1043 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 = 0.5603 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4397 definition: del_lambda2 = 1 - del_lambda1 Qn = 4.3545 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 = 8.4157 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 9.3123 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.257 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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