Detailed Weather Data for Project: NEWT

Date Time TAIR WSPD RELH SRAD 06Nov2017 8 a.m. 50.40 6.10 81.94 8.70 06Nov2017 9 a.m. 52.18 6.50 79.01 36.30 06Nov2017 10 a.m. 52.52 7.10 79.08 34.40 06Nov2017 11 a.m. 51.73 6.50 87.57 42.20 06Nov2017 12 p.m. 50.13 7.30 91.58 66.20 06Nov2017 1 p.m. 49.93 6.60 88.43 71.90 06Nov2017 2 p.m. 49.46 6.20 92.80 60.70 06Nov2017 3 p.m. 49.21 6.80 93.24 35.10 06Nov2017 4 p.m. 48.38 7.80 90.55 27.80 06Nov2017 5 p.m. 47.66 7.50 85.35 9.10 06Nov2017 6 p.m. 46.45 7.80 87.32 0.00 06Nov2017 7 p.m. 45.00 9.40 85.04 0.00 06Nov2017 8 p.m. 44.20 6.70 95.77 0.00 06Nov2017 9 p.m. 44.01 6.30 95.01 0.00 06Nov2017 10 p.m. 43.97 5.90 94.04 0.00 06Nov2017 11 p.m. 44.22 5.60 93.98 0.00 07Nov2017 12 a.m. 43.70 6.70 95.04 0.00 07Nov2017 1 a.m. 43.43 5.90 95.81 0.00 07Nov2017 2 a.m. 43.77 5.70 95.04 0.00 07Nov2017 3 a.m. 44.33 5.70 93.34 0.00 07Nov2017 4 a.m. 44.53 6.00 93.55 0.00 07Nov2017 5 a.m. 44.26 6.50 94.48 0.00 07Nov2017 6 a.m. 43.84 7.60 95.59 0.00 07Nov2017 7 a.m. 43.90 8.40 93.76 0.00 Accuml. Values 1121.20 162.60 2177.32 392.40 Num. Valid Values 24 24 24 24 Avg. Values 46.72 6.77 90.72 16.35 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 8.18 261.62 90.72 33.74 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.0928 definition: xcompl = 1 - (RELH_avg/100) TdC = 6.7260 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 = 0.5285 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4715 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.6962 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 = 1.0268 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 1.2065 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.008 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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