Detailed Weather Data for Project: FALL

Date Time TAIR WSPD RELH SRAD 05Mar2018 8 a.m. 45.39 20.90 70.76 34.80 05Mar2018 9 a.m. 45.79 21.50 65.79 311.30 05Mar2018 10 a.m. 47.14 24.00 56.35 494.50 05Mar2018 11 a.m. 48.72 20.00 51.22 602.50 05Mar2018 12 p.m. 52.32 19.00 38.28 734.10 05Mar2018 1 p.m. 53.35 22.20 28.55 768.60 05Mar2018 2 p.m. 54.77 18.60 22.85 731.90 05Mar2018 3 p.m. 56.64 15.30 16.84 622.20 05Mar2018 4 p.m. 56.48 15.00 15.54 462.40 05Mar2018 5 p.m. 55.76 14.70 16.57 237.30 05Mar2018 6 p.m. 54.68 14.20 17.11 72.90 05Mar2018 7 p.m. 38.75 19.50 55.91 0.10 05Mar2018 8 p.m. 47.08 5.50 24.02 0.00 05Mar2018 9 p.m. 45.00 4.90 26.89 0.00 05Mar2018 10 p.m. 40.23 6.10 36.55 0.00 05Mar2018 11 p.m. 38.95 5.00 39.65 0.00 06Mar2018 12 a.m. 37.85 6.10 42.34 0.00 06Mar2018 1 a.m. 38.97 7.30 44.26 0.00 06Mar2018 2 a.m. 38.32 2.60 43.24 0.00 06Mar2018 3 a.m. 37.62 6.70 41.36 0.00 06Mar2018 4 a.m. 40.53 8.70 33.98 0.00 06Mar2018 5 a.m. 41.09 10.30 30.79 0.00 06Mar2018 6 a.m. 39.65 10.90 32.25 0.00 06Mar2018 7 a.m. 41.02 10.90 29.94 1.80 Accuml. Values 1096.09 309.90 881.04 5074.40 Num. Valid Values 24 24 24 24 Avg. Values 45.67 12.91 36.71 211.43 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 7.59 498.63 36.71 436.30 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.6329 definition: xcompl = 1 - (RELH_avg/100) TdC = -6.4091 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 = 0.5198 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4802 definition: del_lambda2 = 1 - del_lambda1 Qn = 3.8170 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 = 6.6769 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 9.9207 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.266 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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