Detailed Weather Data for Project: FALL

Date Time TAIR WSPD RELH SRAD 06Nov2017 8 a.m. 37.69 9.90 79.47 1.80 06Nov2017 9 a.m. 37.67 8.60 76.72 20.60 06Nov2017 10 a.m. 37.81 8.70 76.68 33.40 06Nov2017 11 a.m. 38.79 9.60 78.50 63.70 06Nov2017 12 p.m. 39.79 9.40 76.95 107.10 06Nov2017 1 p.m. 40.95 8.20 76.07 98.20 06Nov2017 2 p.m. 41.72 7.40 73.93 88.70 06Nov2017 3 p.m. 42.35 7.00 76.04 69.20 06Nov2017 4 p.m. 42.96 8.70 76.76 27.00 06Nov2017 5 p.m. 43.47 9.30 73.27 2.50 06Nov2017 6 p.m. 43.25 7.70 74.11 0.00 06Nov2017 7 p.m. 44.20 8.70 63.95 0.00 06Nov2017 8 p.m. 42.73 6.50 79.03 0.00 06Nov2017 9 p.m. 42.17 7.20 87.38 0.00 06Nov2017 10 p.m. 41.58 6.30 92.02 0.00 06Nov2017 11 p.m. 41.16 6.60 93.31 0.00 07Nov2017 12 a.m. 41.05 6.00 93.50 0.00 07Nov2017 1 a.m. 40.84 6.40 95.90 0.00 07Nov2017 2 a.m. 40.86 7.90 97.46 0.00 07Nov2017 3 a.m. 40.84 6.00 96.82 0.00 07Nov2017 4 a.m. 41.20 7.30 96.16 0.00 07Nov2017 5 a.m. 41.65 10.30 94.10 0.00 07Nov2017 6 a.m. 41.45 10.80 94.36 0.00 07Nov2017 7 a.m. 41.36 8.80 89.85 0.00 Accuml. Values 987.53 193.30 2012.34 512.20 Num. Valid Values 24 24 24 24 Avg. Values 41.15 8.05 83.85 21.34 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 5.08 311.02 83.85 44.04 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.1615 definition: xcompl = 1 - (RELH_avg/100) TdC = 2.5692 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 = 0.4818 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5182 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.6172 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 = 1.4279 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 1.8086 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.025 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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