Detailed Weather Data for Project: HUGO

Date Time TAIR WSPD RELH SRAD 08Nov2017 8 a.m. 48.34 7.36 96.33 22.00 08Nov2017 9 a.m. 48.78 8.07 96.57 29.00 08Nov2017 10 a.m. 49.01 4.97 95.79 45.00 08Nov2017 11 a.m. 49.87 3.29 95.47 28.00 08Nov2017 12 p.m. 50.22 7.90 96.45 50.00 08Nov2017 1 p.m. 49.44 8.71 95.84 27.00 08Nov2017 2 p.m. 49.44 6.89 96.33 45.00 08Nov2017 3 p.m. 49.23 6.49 95.41 36.00 08Nov2017 4 p.m. 48.88 6.05 95.47 27.00 08Nov2017 5 p.m. 49.23 4.69 95.29 6.00 08Nov2017 6 p.m. 48.88 7.90 96.51 0.00 08Nov2017 7 p.m. 51.96 2.75 89.61 0.00 08Nov2017 8 p.m. 48.34 0.19 97.61 0.00 08Nov2017 9 p.m. 48.99 1.29 94.25 0.00 08Nov2017 10 p.m. 49.12 3.52 96.94 0.00 08Nov2017 11 p.m. 49.33 4.14 97.06 0.00 09Nov2017 12 a.m. 49.12 1.38 97.49 0.00 09Nov2017 1 a.m. 49.66 0.34 96.69 0.00 09Nov2017 2 a.m. 48.78 1.11 97.49 0.00 09Nov2017 3 a.m. 48.56 0.55 98.40 0.00 09Nov2017 4 a.m. 48.02 1.64 99.13 0.00 09Nov2017 5 a.m. 47.25 0.69 99.38 0.00 09Nov2017 6 a.m. 44.38 1.57 99.99 0.00 09Nov2017 7 a.m. 44.17 1.56 100.29 2.00 Accuml. Values 1169.00 93.05 2319.79 317.00 Num. Valid Values 24 24 24 24 Avg. Values 48.71 3.88 96.66 13.21 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 9.28 149.72 96.66 27.26 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.0334 definition: xcompl = 1 - (RELH_avg/100) TdC = 8.7602 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 = 0.5448 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4552 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.7540 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 = 0.4060 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 0.3864 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.000 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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