Detailed Weather Data for Project: TOMS

Date Time TAIR WSPD RELH SRAD 08Nov2017 8 a.m. 35.91 15.32 94.75 9.25 08Nov2017 9 a.m. 36.20 14.54 94.67 60.33 08Nov2017 10 a.m. 36.99 14.09 89.00 92.50 08Nov2017 11 a.m. 37.76 10.51 81.67 85.00 08Nov2017 12 p.m. 38.93 13.76 79.50 97.00 08Nov2017 1 p.m. 40.10 14.39 76.00 111.00 08Nov2017 2 p.m. 41.58 12.75 72.00 194.75 08Nov2017 3 p.m. 43.92 13.03 67.75 226.25 08Nov2017 4 p.m. 44.24 5.76 68.00 146.50 08Nov2017 5 p.m. 43.34 2.91 72.00 50.00 08Nov2017 6 p.m. 39.74 5.37 82.00 0.00 08Nov2017 7 p.m. 37.76 5.59 86.00 0.00 08Nov2017 8 p.m. 38.12 4.14 85.50 0.00 08Nov2017 9 p.m. 37.28 4.32 85.33 0.00 08Nov2017 10 p.m. 37.88 4.62 82.67 0.00 08Nov2017 11 p.m. 38.12 2.46 79.00 0.00 09Nov2017 12 a.m. 37.17 3.30 82.25 0.00 09Nov2017 1 a.m. 36.72 4.64 84.00 0.00 09Nov2017 2 a.m. 35.73 1.90 85.75 0.00 09Nov2017 3 a.m. 36.38 0.22 84.33 0.00 09Nov2017 4 a.m. 36.18 2.57 84.75 0.00 09Nov2017 5 a.m. 35.33 3.13 86.50 0.00 09Nov2017 6 a.m. 35.91 4.14 85.25 0.00 09Nov2017 7 a.m. 35.60 2.91 84.00 1.50 Accuml. Values 916.89 166.37 1972.67 1074.08 Num. Valid Values 24 24 24 24 Avg. Values 38.20 6.93 82.19 44.75 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 3.45 267.69 82.19 92.35 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.1781 definition: xcompl = 1 - (RELH_avg/100) TdC = 0.6951 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 = 0.4567 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5433 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.1799 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 = 1.4020 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 1.6105 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.031 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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