Detailed Weather Data for Project: FCOB

Date Time TAIR WSPD RELH SRAD 08Nov2017 8 a.m. 37.08 9.90 86.25 18.75 08Nov2017 9 a.m. 37.22 9.69 81.00 40.33 08Nov2017 10 a.m. 38.03 9.51 77.25 72.75 08Nov2017 11 a.m. 39.62 9.10 74.67 110.00 08Nov2017 12 p.m. 40.32 9.90 72.75 131.00 08Nov2017 1 p.m. 42.02 10.51 70.33 189.00 08Nov2017 2 p.m. 43.83 9.62 66.50 240.50 08Nov2017 3 p.m. 45.27 6.26 63.50 355.75 08Nov2017 4 p.m. 46.80 4.87 59.25 320.25 08Nov2017 5 p.m. 46.67 2.91 58.50 140.50 08Nov2017 6 p.m. 40.64 2.46 74.00 0.00 08Nov2017 7 p.m. 38.84 2.24 79.00 0.00 08Nov2017 8 p.m. 37.85 3.91 82.00 0.00 08Nov2017 9 p.m. 36.98 5.00 83.33 0.00 08Nov2017 10 p.m. 35.48 2.54 85.00 0.00 08Nov2017 11 p.m. 33.62 1.57 92.00 0.00 09Nov2017 12 a.m. 34.25 4.36 91.00 0.00 09Nov2017 1 a.m. 33.80 2.35 92.75 0.00 09Nov2017 2 a.m. 32.63 0.73 93.00 0.00 09Nov2017 3 a.m. 31.28 0.97 96.00 0.00 09Nov2017 4 a.m. 30.92 1.29 97.00 0.00 09Nov2017 5 a.m. 30.20 2.46 96.00 0.00 09Nov2017 6 a.m. 29.89 2.57 96.25 0.00 09Nov2017 7 a.m. 29.39 3.24 96.50 1.50 Accuml. Values 892.63 117.96 1963.83 1620.33 Num. Valid Values 24 24 24 24 Avg. Values 37.19 4.92 81.83 67.51 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 2.88 189.80 81.83 139.32 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.1817 definition: xcompl = 1 - (RELH_avg/100) TdC = 0.0848 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 = 0.4481 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5519 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.2618 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 = 1.3752 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 1.2844 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.033 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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