Detailed Weather Data for Project: NEWT

Date Time TAIR WSPD RELH SRAD 29Dec2017 8 a.m. 32.02 4.20 58.51 0.00 29Dec2017 9 a.m. 32.32 4.70 58.31 7.80 29Dec2017 10 a.m. 32.86 5.20 57.41 27.40 29Dec2017 11 a.m. 34.07 6.60 57.54 61.30 29Dec2017 12 p.m. 35.67 6.60 56.80 113.50 29Dec2017 1 p.m. 39.15 5.50 52.59 132.00 29Dec2017 2 p.m. 41.65 6.80 47.26 109.50 29Dec2017 3 p.m. 43.07 7.50 49.77 206.30 29Dec2017 4 p.m. 44.17 7.90 55.21 251.30 29Dec2017 5 p.m. 42.96 6.20 60.82 56.60 29Dec2017 6 p.m. 41.45 2.70 65.73 0.00 29Dec2017 7 p.m. 24.42 7.30 60.85 0.00 29Dec2017 8 p.m. 41.34 1.10 70.93 0.00 29Dec2017 9 p.m. 40.91 0.90 71.23 0.00 29Dec2017 10 p.m. 39.58 0.70 74.15 0.00 29Dec2017 11 p.m. 39.42 1.70 75.65 0.00 30Dec2017 12 a.m. 39.51 1.70 75.52 0.00 30Dec2017 1 a.m. 38.98 1.80 77.59 0.00 30Dec2017 2 a.m. 39.09 2.70 76.70 0.00 30Dec2017 3 a.m. 39.11 2.40 74.94 0.00 30Dec2017 4 a.m. 39.00 2.70 76.88 0.00 30Dec2017 5 a.m. 38.28 9.30 76.66 0.00 30Dec2017 6 a.m. 31.87 14.20 78.51 0.00 30Dec2017 7 a.m. 29.14 13.10 82.56 0.00 Accuml. Values 900.05 123.50 1592.12 965.70 Num. Valid Values 24 24 24 24 Avg. Values 37.50 5.15 66.34 40.24 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 3.06 198.71 66.34 83.03 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3366 definition: xcompl = 1 - (RELH_avg/100) TdC = -2.5698 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 = 0.4507 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5493 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.2723 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 = 2.5627 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 2.2805 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.044 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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