Detailed Weather Data for Project: TORO

Date Time TAIR WSPD RELH SRAD 05Mar2018 8 a.m. 45.30 9.70 70.70 9.80 05Mar2018 9 a.m. 45.73 9.10 64.08 327.00 05Mar2018 10 a.m. 47.61 10.60 52.21 514.10 05Mar2018 11 a.m. 48.60 9.80 48.35 634.00 05Mar2018 12 p.m. 51.80 9.60 41.02 755.40 05Mar2018 1 p.m. 53.56 12.20 25.30 775.30 05Mar2018 2 p.m. 54.72 9.90 20.99 735.10 05Mar2018 3 p.m. 56.37 10.50 16.41 630.20 05Mar2018 4 p.m. 56.61 11.20 14.54 471.40 05Mar2018 5 p.m. 56.23 10.30 14.94 278.10 05Mar2018 6 p.m. 54.97 9.40 15.60 80.20 05Mar2018 7 p.m. 37.72 8.80 49.56 0.90 05Mar2018 8 p.m. 48.85 2.20 22.67 0.00 05Mar2018 9 p.m. 43.88 3.00 29.62 0.00 05Mar2018 10 p.m. 39.79 3.10 42.08 0.00 05Mar2018 11 p.m. 40.35 3.70 41.05 0.00 06Mar2018 12 a.m. 39.06 2.60 41.05 0.00 06Mar2018 1 a.m. 38.57 1.90 40.92 0.00 06Mar2018 2 a.m. 37.90 3.00 42.09 0.00 06Mar2018 3 a.m. 37.98 3.70 40.64 0.00 06Mar2018 4 a.m. 40.19 3.60 35.82 0.00 06Mar2018 5 a.m. 40.14 4.60 33.79 0.00 06Mar2018 6 a.m. 39.88 5.30 32.49 0.00 06Mar2018 7 a.m. 40.73 7.10 30.80 1.00 Accuml. Values 1096.54 164.90 866.72 5212.50 Num. Valid Values 24 24 24 24 Avg. Values 45.69 6.87 36.11 217.19 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 7.61 265.32 36.11 448.17 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.6389 definition: xcompl = 1 - (RELH_avg/100) TdC = -6.6162 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 = 0.5200 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4800 definition: del_lambda2 = 1 - del_lambda1 Qn = 3.9704 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 = 6.7445 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 6.3800 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.202 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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