Detailed Weather Data for Project: NEWT

Date Time TAIR WSPD RELH SRAD 01Jan2018 8 a.m. 4.57 8.10 70.21 0.00 01Jan2018 9 a.m. 5.09 9.20 67.66 134.50 01Jan2018 10 a.m. 6.80 7.60 63.34 288.20 01Jan2018 11 a.m. 9.21 6.60 58.54 454.80 01Jan2018 12 p.m. 11.68 6.70 51.30 543.20 01Jan2018 1 p.m. 13.14 7.00 46.08 569.80 01Jan2018 2 p.m. 15.21 6.70 42.72 534.70 01Jan2018 3 p.m. 16.81 6.20 39.54 443.00 01Jan2018 4 p.m. 17.69 6.30 37.30 301.80 01Jan2018 5 p.m. 17.55 6.20 38.50 128.00 01Jan2018 6 p.m. 15.94 5.90 43.04 1.70 01Jan2018 7 p.m. 24.40 2.30 47.27 0.00 01Jan2018 8 p.m. 14.43 5.60 47.15 0.00 01Jan2018 9 p.m. 13.86 6.10 48.27 0.00 01Jan2018 10 p.m. 13.57 6.00 49.98 0.00 01Jan2018 11 p.m. 13.17 4.10 53.89 0.00 02Jan2018 12 a.m. 12.79 3.00 61.38 0.00 02Jan2018 1 a.m. 13.71 3.00 60.50 0.00 02Jan2018 2 a.m. 14.63 3.30 58.35 0.00 02Jan2018 3 a.m. 14.07 2.80 59.73 0.00 02Jan2018 4 a.m. 13.80 2.60 61.92 0.00 02Jan2018 5 a.m. 14.38 3.20 63.14 0.00 02Jan2018 6 a.m. 14.88 3.10 63.60 0.00 02Jan2018 7 a.m. 14.97 2.80 64.07 0.00 Accuml. Values 326.35 124.40 1297.48 3399.70 Num. Valid Values 24 24 24 24 Avg. Values 13.60 5.18 54.06 141.65 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values -10.22 200.16 54.06 292.31 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.4594 definition: xcompl = 1 - (RELH_avg/100) TdC = -17.7606 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 = 0.2539 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.7461 definition: del_lambda2 = 1 - del_lambda1 Qn = 1.4096 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 = 1.3047 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 1.2643 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.051 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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