Detailed Weather Data for Project: NEWT

Date Time TAIR WSPD RELH SRAD 04Dec2017 8 a.m. 64.11 5.50 86.84 4.20 04Dec2017 9 a.m. 64.98 5.00 85.29 7.20 04Dec2017 10 a.m. 66.15 5.30 82.68 63.00 04Dec2017 11 a.m. 68.76 6.40 77.10 269.20 04Dec2017 12 p.m. 71.40 8.30 72.01 289.70 04Dec2017 1 p.m. 73.40 8.70 66.93 312.30 04Dec2017 2 p.m. 74.73 9.10 63.47 318.50 04Dec2017 3 p.m. 75.81 9.30 59.30 141.90 04Dec2017 4 p.m. 76.66 7.70 55.35 114.70 04Dec2017 5 p.m. 76.33 10.40 44.96 40.60 04Dec2017 6 p.m. 67.24 17.70 38.35 0.00 04Dec2017 7 p.m. 38.62 1.20 51.93 0.00 04Dec2017 8 p.m. 63.23 16.10 27.20 0.00 04Dec2017 9 p.m. 58.98 15.70 33.49 0.00 04Dec2017 10 p.m. 53.96 16.20 39.17 0.00 04Dec2017 11 p.m. 50.88 12.80 38.93 0.00 05Dec2017 12 a.m. 47.91 10.20 42.04 0.00 05Dec2017 1 a.m. 45.09 8.30 47.21 0.00 05Dec2017 2 a.m. 43.65 8.60 49.71 0.00 05Dec2017 3 a.m. 41.90 9.60 51.66 0.00 05Dec2017 4 a.m. 39.76 9.90 52.75 0.00 05Dec2017 5 a.m. 38.08 10.10 51.70 0.00 05Dec2017 6 a.m. 36.81 9.10 46.11 0.00 05Dec2017 7 a.m. 36.27 7.50 46.73 0.00 Accuml. Values 1374.71 228.70 1310.91 1561.30 Num. Valid Values 24 24 24 24 Avg. Values 57.28 9.53 54.62 65.05 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 14.04 367.98 54.62 134.24 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.4538 definition: xcompl = 1 - (RELH_avg/100) TdC = 5.0756 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 = 0.6118 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3882 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.4641 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 = 7.2689 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 8.5200 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.141 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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