Detailed Weather Data for Project: TOMS

Date Time TAIR WSPD RELH SRAD 04Mar2018 8 a.m. 56.12 12.64 100.00 4.25 04Mar2018 9 a.m. 56.90 15.51 100.00 16.00 04Mar2018 10 a.m. 57.38 16.61 100.00 29.50 04Mar2018 11 a.m. 57.50 15.14 100.00 45.67 04Mar2018 12 p.m. 58.37 17.39 100.00 55.25 04Mar2018 1 p.m. 59.30 15.51 100.00 32.33 04Mar2018 2 p.m. 60.17 16.27 100.00 35.50 04Mar2018 3 p.m. 60.75 15.60 100.00 40.50 04Mar2018 4 p.m. 61.25 16.05 99.75 50.75 04Mar2018 5 p.m. 63.32 14.04 93.25 38.25 04Mar2018 6 p.m. 64.76 15.88 87.00 30.00 04Mar2018 7 p.m. 63.14 14.54 93.00 0.00 04Mar2018 8 p.m. 63.32 18.57 93.00 0.00 04Mar2018 9 p.m. 62.24 14.32 97.00 0.00 04Mar2018 10 p.m. 62.15 15.43 97.50 0.00 04Mar2018 11 p.m. 62.42 16.50 97.75 0.00 05Mar2018 12 a.m. 62.00 15.43 99.00 0.00 05Mar2018 1 a.m. 61.20 14.15 98.50 0.00 05Mar2018 2 a.m. 61.07 12.53 94.75 0.00 05Mar2018 3 a.m. 60.26 10.36 93.67 0.00 05Mar2018 4 a.m. 58.64 11.74 93.25 0.00 05Mar2018 5 a.m. 56.39 11.97 77.00 0.00 05Mar2018 6 a.m. 52.02 25.33 51.00 0.00 05Mar2018 7 a.m. 47.39 22.15 53.50 2.50 Accuml. Values 1428.06 373.66 2218.92 380.50 Num. Valid Values 24 24 24 24 Avg. Values 59.50 15.57 92.45 15.85 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 15.28 601.22 92.45 32.72 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.0755 definition: xcompl = 1 - (RELH_avg/100) TdC = 14.0423 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 = 0.6283 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3717 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.6629 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 = 1.3319 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 2.7843 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.024 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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