Detailed Weather Data for Project: NEWT

Date Time TAIR WSPD RELH SRAD 03Mar2018 8 a.m. 48.20 4.90 62.81 79.60 03Mar2018 9 a.m. 50.65 6.40 57.41 282.10 03Mar2018 10 a.m. 53.87 6.80 53.29 477.30 03Mar2018 11 a.m. 56.28 8.50 50.34 519.40 03Mar2018 12 p.m. 59.54 7.40 46.79 735.10 03Mar2018 1 p.m. 61.65 7.30 44.87 771.90 03Mar2018 2 p.m. 63.21 8.10 43.95 741.60 03Mar2018 3 p.m. 65.19 7.90 42.47 650.00 03Mar2018 4 p.m. 66.81 9.20 40.20 509.00 03Mar2018 5 p.m. 67.89 7.90 39.42 323.80 03Mar2018 6 p.m. 66.54 7.60 41.36 117.50 03Mar2018 7 p.m. 56.50 10.30 68.15 0.00 03Mar2018 8 p.m. 59.95 6.30 52.40 0.00 03Mar2018 9 p.m. 58.66 6.30 52.71 0.00 03Mar2018 10 p.m. 57.40 5.20 51.08 0.00 03Mar2018 11 p.m. 56.97 7.20 45.80 0.00 04Mar2018 12 a.m. 55.60 7.50 48.13 0.00 04Mar2018 1 a.m. 53.69 4.00 52.40 0.00 04Mar2018 2 a.m. 54.21 3.20 54.31 0.00 04Mar2018 3 a.m. 55.33 5.30 50.72 0.00 04Mar2018 4 a.m. 55.24 7.30 50.51 0.00 04Mar2018 5 a.m. 54.91 6.10 52.23 0.00 04Mar2018 6 a.m. 55.13 7.40 51.91 0.00 04Mar2018 7 a.m. 55.09 7.30 51.87 0.00 Accuml. Values 1388.51 165.40 1205.13 5207.30 Num. Valid Values 24 24 24 24 Avg. Values 57.85 6.89 50.21 216.97 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 14.36 266.13 50.21 447.72 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.4979 definition: xcompl = 1 - (RELH_avg/100) TdC = 4.1333 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 = 0.6161 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3839 definition: del_lambda2 = 1 - del_lambda1 Qn = 4.4935 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 = 8.1656 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 7.5639 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.223 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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