Detailed Weather Data for Project: NEWT

Date Time TAIR WSPD RELH SRAD 05Mar2018 8 a.m. 62.64 10.60 77.82 28.50 05Mar2018 9 a.m. 53.17 18.70 60.15 292.70 05Mar2018 10 a.m. 55.76 17.60 44.53 502.00 05Mar2018 11 a.m. 57.31 17.60 37.61 660.10 05Mar2018 12 p.m. 57.22 15.80 36.35 766.70 05Mar2018 1 p.m. 58.03 13.50 32.99 792.60 05Mar2018 2 p.m. 59.29 16.20 23.39 784.10 05Mar2018 3 p.m. 60.46 14.20 18.89 695.10 05Mar2018 4 p.m. 60.87 13.20 16.94 555.80 05Mar2018 5 p.m. 60.87 13.10 15.82 365.50 05Mar2018 6 p.m. 60.03 10.80 17.08 143.30 05Mar2018 7 p.m. 46.11 14.30 38.08 0.60 05Mar2018 8 p.m. 53.62 1.40 25.56 0.00 05Mar2018 9 p.m. 48.90 0.20 53.71 0.00 05Mar2018 10 p.m. 45.05 0.60 54.42 0.00 05Mar2018 11 p.m. 42.69 0.60 60.35 0.00 06Mar2018 12 a.m. 41.50 0.00 70.01 0.00 06Mar2018 1 a.m. 40.35 0.20 72.11 0.00 06Mar2018 2 a.m. 37.15 0.80 79.73 0.00 06Mar2018 3 a.m. 41.94 1.90 55.48 0.00 06Mar2018 4 a.m. 43.88 2.80 44.20 0.00 06Mar2018 5 a.m. 43.72 3.30 42.35 0.00 06Mar2018 6 a.m. 42.62 2.80 42.96 0.00 06Mar2018 7 a.m. 42.66 3.20 40.89 0.00 Accuml. Values 1215.82 193.40 1061.42 5587.00 Num. Valid Values 24 23 24 24 Avg. Values 50.66 8.41 44.23 232.79 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 10.37 324.71 44.23 480.37 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.5577 definition: xcompl = 1 - (RELH_avg/100) TdC = -1.3667 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 = 0.5605 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4395 definition: del_lambda2 = 1 - del_lambda1 Qn = 4.6123 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 = 7.0744 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 7.6172 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.234 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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