Detailed Weather Data for Project: NEWT

Date Time TAIR WSPD RELH SRAD 30Dec2017 8 a.m. 27.03 12.60 85.48 0.00 30Dec2017 9 a.m. 25.50 11.60 86.86 0.00 30Dec2017 10 a.m. 24.85 11.40 87.89 10.40 30Dec2017 11 a.m. 24.94 12.00 84.10 35.70 30Dec2017 12 p.m. 24.84 10.70 81.94 39.10 30Dec2017 1 p.m. 24.28 10.00 81.89 48.90 30Dec2017 2 p.m. 24.26 9.70 77.13 60.40 30Dec2017 3 p.m. 24.40 8.90 72.02 49.90 30Dec2017 4 p.m. 24.35 9.30 69.87 33.00 30Dec2017 5 p.m. 24.26 8.70 68.01 5.20 30Dec2017 6 p.m. 24.22 7.60 64.66 0.00 30Dec2017 7 p.m. 17.13 9.90 47.07 0.00 30Dec2017 8 p.m. 24.94 5.80 60.46 0.00 30Dec2017 9 p.m. 25.25 3.70 65.15 0.00 30Dec2017 10 p.m. 25.97 3.40 66.64 0.00 30Dec2017 11 p.m. 25.92 4.10 65.43 0.00 31Dec2017 12 a.m. 25.07 6.80 58.00 0.00 31Dec2017 1 a.m. 23.59 10.40 57.46 0.00 31Dec2017 2 a.m. 21.99 10.40 59.29 0.00 31Dec2017 3 a.m. 19.45 13.80 59.65 0.00 31Dec2017 4 a.m. 17.11 12.60 75.92 0.00 31Dec2017 5 a.m. 16.30 12.10 68.06 0.00 31Dec2017 6 a.m. 16.18 11.40 62.96 0.00 31Dec2017 7 a.m. 15.89 11.20 62.38 0.00 Accuml. Values 547.75 228.10 1668.32 282.60 Num. Valid Values 24 24 24 24 Avg. Values 22.82 9.50 69.51 11.78 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values -5.10 367.01 69.51 24.30 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3049 definition: xcompl = 1 - (RELH_avg/100) TdC = -9.7810 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 = 0.3263 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.6737 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.8296 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 = 1.2813 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 1.8461 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.038 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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