Detailed Weather Data for Project: NEWT

Date Time TAIR WSPD RELH SRAD 02Jan2018 8 a.m. 14.86 2.20 66.35 0.10 02Jan2018 9 a.m. 15.67 2.70 64.12 47.60 02Jan2018 10 a.m. 17.42 1.30 57.98 89.30 02Jan2018 11 a.m. 19.22 0.80 51.46 128.50 02Jan2018 12 p.m. 20.19 1.60 49.16 136.20 02Jan2018 1 p.m. 21.63 1.80 45.42 225.00 02Jan2018 2 p.m. 22.86 2.00 42.28 206.80 02Jan2018 3 p.m. 23.81 2.20 41.80 166.20 02Jan2018 4 p.m. 24.85 2.00 40.83 147.50 02Jan2018 5 p.m. 25.16 1.10 39.55 56.80 02Jan2018 6 p.m. 24.76 1.50 40.90 0.10 02Jan2018 7 p.m. 31.24 0.20 60.72 0.00 02Jan2018 8 p.m. 23.58 2.00 51.68 0.00 02Jan2018 9 p.m. 21.78 0.70 60.04 0.00 02Jan2018 10 p.m. 19.71 2.00 61.37 0.00 02Jan2018 11 p.m. 19.89 2.40 58.67 0.00 03Jan2018 12 a.m. 18.46 1.80 64.60 0.00 03Jan2018 1 a.m. 17.33 0.90 70.26 0.00 03Jan2018 2 a.m. 17.19 1.40 69.92 0.00 03Jan2018 3 a.m. 16.88 1.30 70.51 0.00 03Jan2018 4 a.m. 15.87 0.80 76.10 0.00 03Jan2018 5 a.m. 16.29 1.20 73.91 0.00 03Jan2018 6 a.m. 14.86 1.30 77.15 0.00 03Jan2018 7 a.m. 14.92 1.20 75.08 0.00 Accuml. Values 478.43 36.40 1409.86 1204.10 Num. Valid Values 24 24 24 24 Avg. Values 19.93 1.52 58.74 50.17 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values -6.70 58.57 58.74 103.53 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.4126 definition: xcompl = 1 - (RELH_avg/100) TdC = -13.4270 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 = 0.3029 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.6971 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.1945 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 = 1.5394 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 0.8622 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.021 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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