Detailed Weather Data for Project: HUGO

Date Time TAIR WSPD RELH SRAD 07Nov2017 8 a.m. 53.17 19.12 89.79 60.00 07Nov2017 9 a.m. 53.51 18.57 88.82 43.00 07Nov2017 10 a.m. 53.62 16.59 85.03 115.00 07Nov2017 11 a.m. 54.82 13.44 83.99 169.00 07Nov2017 12 p.m. 58.78 10.84 73.92 597.00 07Nov2017 1 p.m. 62.40 12.38 68.73 572.00 07Nov2017 2 p.m. 59.77 15.61 71.05 279.00 07Nov2017 3 p.m. 56.80 19.70 79.97 159.00 07Nov2017 4 p.m. 53.51 23.35 85.95 53.00 07Nov2017 5 p.m. 52.95 22.82 87.66 5.00 07Nov2017 6 p.m. 50.88 19.77 84.31 0.00 07Nov2017 7 p.m. 48.56 1.34 97.85 0.00 07Nov2017 8 p.m. 50.22 16.77 83.26 0.00 07Nov2017 9 p.m. 51.08 14.86 87.60 0.00 07Nov2017 10 p.m. 49.44 12.84 88.08 0.00 07Nov2017 11 p.m. 48.88 15.86 91.26 0.00 08Nov2017 12 a.m. 48.78 10.97 93.52 0.00 08Nov2017 1 a.m. 48.02 10.62 97.50 0.00 08Nov2017 2 a.m. 48.56 11.31 96.94 0.00 08Nov2017 3 a.m. 48.78 14.65 98.10 0.00 08Nov2017 4 a.m. 47.68 14.31 97.18 0.00 08Nov2017 5 a.m. 47.68 14.21 97.79 0.00 08Nov2017 6 a.m. 48.45 7.44 97.79 0.00 08Nov2017 7 a.m. 49.33 12.15 94.80 1.00 Accuml. Values 1245.68 349.52 2120.89 2053.00 Num. Valid Values 24 24 24 24 Avg. Values 51.90 14.56 88.37 85.54 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 11.06 562.38 88.37 176.52 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.1163 definition: xcompl = 1 - (RELH_avg/100) TdC = 9.1919 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 = 0.5704 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4296 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.8614 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 = 1.5483 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 3.0131 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.070 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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