Detailed Weather Data for Project: NEWT

Date Time TAIR WSPD RELH SRAD 31Dec2017 8 a.m. 15.78 12.00 59.30 0.60 31Dec2017 9 a.m. 15.49 14.20 57.43 73.60 31Dec2017 10 a.m. 16.09 13.90 53.05 174.00 31Dec2017 11 a.m. 17.55 14.60 46.07 449.30 31Dec2017 12 p.m. 19.20 12.70 41.30 539.60 31Dec2017 1 p.m. 20.35 12.70 35.35 522.80 31Dec2017 2 p.m. 21.70 13.30 31.69 522.70 31Dec2017 3 p.m. 22.51 13.00 31.90 456.10 31Dec2017 4 p.m. 21.47 13.60 32.83 281.00 31Dec2017 5 p.m. 20.28 11.80 34.86 122.60 31Dec2017 6 p.m. 18.43 9.70 42.89 0.00 31Dec2017 7 p.m. 14.79 4.20 48.08 0.00 31Dec2017 8 p.m. 16.12 8.30 49.59 0.00 31Dec2017 9 p.m. 15.58 10.40 49.90 0.00 31Dec2017 10 p.m. 14.41 10.20 51.54 0.00 31Dec2017 11 p.m. 13.37 9.40 53.48 0.00 01Jan2018 12 a.m. 12.16 9.10 55.66 0.00 01Jan2018 1 a.m. 11.21 8.40 57.42 0.00 01Jan2018 2 a.m. 10.06 8.10 60.37 0.00 01Jan2018 3 a.m. 9.05 8.40 63.40 0.00 01Jan2018 4 a.m. 8.01 9.00 64.82 0.00 01Jan2018 5 a.m. 6.91 8.90 66.81 0.00 01Jan2018 6 a.m. 6.10 7.20 69.46 0.00 01Jan2018 7 a.m. 5.25 7.90 69.98 0.00 Accuml. Values 351.89 251.00 1227.18 3142.30 Num. Valid Values 24 24 24 24 Avg. Values 14.66 10.46 51.13 130.93 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values -9.63 403.86 51.13 270.17 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.4887 definition: xcompl = 1 - (RELH_avg/100) TdC = -17.8862 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 = 0.2619 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.7381 definition: del_lambda2 = 1 - del_lambda1 Qn = 1.2194 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 = 1.4565 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 2.2153 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.077 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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