Detailed Weather Data for Project: TOMS

Date Time TAIR WSPD RELH SRAD 07Nov2017 8 a.m. 42.17 14.26 74.75 31.00 07Nov2017 9 a.m. 42.80 16.33 70.33 74.67 07Nov2017 10 a.m. 43.92 12.75 69.25 216.75 07Nov2017 11 a.m. 46.04 13.12 63.00 441.00 07Nov2017 12 p.m. 48.38 15.94 58.50 519.00 07Nov2017 1 p.m. 48.44 18.34 57.33 383.33 07Nov2017 2 p.m. 47.34 17.78 60.00 390.75 07Nov2017 3 p.m. 46.04 16.50 63.00 270.00 07Nov2017 4 p.m. 45.50 16.27 64.50 193.00 07Nov2017 5 p.m. 44.24 15.10 66.75 73.75 07Nov2017 6 p.m. 43.52 18.79 68.00 0.00 07Nov2017 7 p.m. 43.52 17.90 69.00 0.00 07Nov2017 8 p.m. 43.16 17.00 67.00 0.00 07Nov2017 9 p.m. 42.62 17.45 66.67 0.00 07Nov2017 10 p.m. 41.76 16.05 65.50 0.00 07Nov2017 11 p.m. 40.77 15.71 61.25 0.00 08Nov2017 12 a.m. 39.74 13.65 63.75 0.00 08Nov2017 1 a.m. 39.65 11.69 66.25 0.00 08Nov2017 2 a.m. 39.24 11.80 69.00 0.00 08Nov2017 3 a.m. 39.44 11.71 70.67 0.00 08Nov2017 4 a.m. 39.33 12.81 76.75 0.00 08Nov2017 5 a.m. 38.84 15.43 81.00 0.00 08Nov2017 6 a.m. 36.54 16.11 91.50 0.00 08Nov2017 7 a.m. 36.14 14.54 95.50 0.50 Accuml. Values 1019.14 367.03 1659.25 2593.75 Num. Valid Values 24 24 24 24 Avg. Values 42.46 15.29 69.14 108.07 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 5.81 590.55 69.14 223.01 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3086 definition: xcompl = 1 - (RELH_avg/100) TdC = 0.6359 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 = 0.4930 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5070 definition: del_lambda2 = 1 - del_lambda1 Qn = 1.2016 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 = 2.8429 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 5.3484 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.130 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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