Detailed Weather Data for Project: FALL

Date Time TAIR WSPD RELH SRAD 04Dec2017 8 a.m. 64.89 10.30 81.26 0.00 04Dec2017 9 a.m. 65.88 14.40 80.29 38.30 04Dec2017 10 a.m. 68.09 20.50 74.67 134.80 04Dec2017 11 a.m. 71.01 23.40 66.49 286.00 04Dec2017 12 p.m. 72.90 23.50 59.04 308.40 04Dec2017 1 p.m. 73.24 23.20 52.06 235.90 04Dec2017 2 p.m. 72.07 16.30 47.13 229.60 04Dec2017 3 p.m. 63.57 15.40 40.25 181.80 04Dec2017 4 p.m. 61.93 15.70 39.87 170.70 04Dec2017 5 p.m. 62.53 16.00 34.94 17.00 04Dec2017 6 p.m. 57.02 22.30 43.37 0.00 04Dec2017 7 p.m. 37.42 5.40 35.71 0.00 04Dec2017 8 p.m. 48.92 25.50 48.33 0.00 04Dec2017 9 p.m. 46.24 24.90 51.14 0.00 04Dec2017 10 p.m. 44.06 23.00 54.88 0.00 04Dec2017 11 p.m. 41.45 23.00 58.49 0.00 05Dec2017 12 a.m. 38.98 20.30 57.62 0.00 05Dec2017 1 a.m. 36.88 16.30 53.29 0.00 05Dec2017 2 a.m. 34.75 14.20 51.82 0.00 05Dec2017 3 a.m. 32.94 11.40 52.37 0.00 05Dec2017 4 a.m. 32.00 11.70 52.50 0.00 05Dec2017 5 a.m. 31.15 8.60 49.39 0.00 05Dec2017 6 a.m. 31.42 11.60 52.31 0.00 05Dec2017 7 a.m. 31.01 5.90 45.64 0.00 Accuml. Values 1220.34 402.80 1282.86 1602.50 Num. Valid Values 24 24 24 24 Avg. Values 50.85 16.78 53.45 66.77 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 10.47 648.11 53.45 137.78 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.4655 definition: xcompl = 1 - (RELH_avg/100) TdC = 1.4236 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 = 0.5620 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4380 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.4132 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 = 5.9134 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 10.9863 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.199 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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