Detailed Weather Data for Project: FALL

Date Time TAIR WSPD RELH SRAD 07Nov2017 8 a.m. 41.52 8.80 82.11 0.70 07Nov2017 9 a.m. 41.56 10.00 80.58 10.30 07Nov2017 10 a.m. 40.62 11.80 83.44 51.10 07Nov2017 11 a.m. 41.92 11.50 75.64 107.50 07Nov2017 12 p.m. 43.81 10.90 70.38 130.20 07Nov2017 1 p.m. 45.34 10.00 67.04 107.40 07Nov2017 2 p.m. 45.23 10.60 68.82 57.00 07Nov2017 3 p.m. 45.30 11.50 67.59 31.20 07Nov2017 4 p.m. 43.90 12.30 68.49 11.60 07Nov2017 5 p.m. 43.86 11.20 68.50 4.60 07Nov2017 6 p.m. 44.08 10.10 67.22 0.00 07Nov2017 7 p.m. 46.62 1.40 57.85 0.00 07Nov2017 8 p.m. 44.19 10.60 60.09 0.00 07Nov2017 9 p.m. 43.75 9.20 57.76 0.00 07Nov2017 10 p.m. 43.16 7.60 56.76 0.00 07Nov2017 11 p.m. 41.47 6.70 59.76 0.00 08Nov2017 12 a.m. 39.63 6.60 63.62 0.00 08Nov2017 1 a.m. 38.21 6.50 67.16 0.00 08Nov2017 2 a.m. 37.09 7.80 69.85 0.00 08Nov2017 3 a.m. 36.66 8.20 70.93 0.00 08Nov2017 4 a.m. 35.83 8.30 74.39 0.00 08Nov2017 5 a.m. 35.02 6.60 76.64 0.00 08Nov2017 6 a.m. 34.43 6.00 75.92 0.00 08Nov2017 7 a.m. 33.82 6.00 77.50 0.00 Accuml. Values 987.02 210.20 1668.04 511.60 Num. Valid Values 24 24 24 24 Avg. Values 41.13 8.76 69.50 21.32 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 5.07 338.21 69.50 43.99 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3050 definition: xcompl = 1 - (RELH_avg/100) TdC = -0.0062 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 = 0.4816 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5184 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.6178 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 = 2.6691 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 3.3234 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.056 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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