Detailed Weather Data for Project: FCOB

Date Time TAIR WSPD RELH SRAD 07Nov2017 8 a.m. 41.72 11.74 76.25 26.00 07Nov2017 9 a.m. 41.66 10.66 73.33 160.67 07Nov2017 10 a.m. 44.10 13.37 67.25 309.50 07Nov2017 11 a.m. 45.86 13.94 66.33 400.00 07Nov2017 12 p.m. 46.98 13.20 63.00 355.50 07Nov2017 1 p.m. 45.50 13.05 67.33 222.00 07Nov2017 2 p.m. 45.45 13.81 67.75 271.25 07Nov2017 3 p.m. 45.59 15.10 67.00 190.75 07Nov2017 4 p.m. 45.23 14.76 67.75 111.00 07Nov2017 5 p.m. 45.41 14.99 67.25 59.50 07Nov2017 6 p.m. 44.78 15.21 67.00 0.00 07Nov2017 7 p.m. 44.24 16.33 65.00 0.00 07Nov2017 8 p.m. 44.15 14.88 65.50 0.00 07Nov2017 9 p.m. 43.46 15.43 60.67 0.00 07Nov2017 10 p.m. 41.63 13.03 60.50 0.00 07Nov2017 11 p.m. 40.91 10.40 63.50 0.00 08Nov2017 12 a.m. 40.34 9.69 66.00 0.00 08Nov2017 1 a.m. 40.19 8.84 67.50 0.00 08Nov2017 2 a.m. 40.86 10.46 68.25 0.00 08Nov2017 3 a.m. 40.82 11.86 70.00 0.00 08Nov2017 4 a.m. 39.51 8.11 79.00 0.00 08Nov2017 5 a.m. 37.31 10.63 90.50 0.00 08Nov2017 6 a.m. 36.95 10.29 92.75 0.00 08Nov2017 7 a.m. 36.77 9.84 90.00 0.00 Accuml. Values 1019.42 299.62 1689.41 2106.17 Num. Valid Values 24 24 24 24 Avg. Values 42.48 12.48 70.39 87.76 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 5.82 482.09 70.39 181.09 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.2961 definition: xcompl = 1 - (RELH_avg/100) TdC = 0.8898 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 = 0.4930 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5070 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.7543 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 = 2.7281 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 4.3970 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.102 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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