Detailed Weather Data for Project: FCOB

Date Time TAIR WSPD RELH SRAD 06Nov2017 8 a.m. 43.25 9.51 86.25 33.25 06Nov2017 9 a.m. 44.12 8.57 84.33 81.33 06Nov2017 10 a.m. 44.64 10.29 83.75 117.00 06Nov2017 11 a.m. 46.64 9.32 81.33 221.67 06Nov2017 12 p.m. 49.28 9.23 76.50 259.50 06Nov2017 1 p.m. 50.84 9.02 73.33 327.33 06Nov2017 2 p.m. 51.74 7.68 70.00 480.00 06Nov2017 3 p.m. -901.00 -901.00 -901.00 -901.00 06Nov2017 4 p.m. -901.00 -901.00 -901.00 -901.00 06Nov2017 5 p.m. -901.00 -901.00 -901.00 -901.00 06Nov2017 6 p.m. 46.22 9.17 78.00 0.00 06Nov2017 7 p.m. 44.06 8.05 82.00 0.00 06Nov2017 8 p.m. 42.44 6.49 84.00 0.00 06Nov2017 9 p.m. 41.36 6.38 86.00 0.00 06Nov2017 10 p.m. 40.16 3.06 88.67 0.00 06Nov2017 11 p.m. 39.60 3.86 90.25 0.00 07Nov2017 12 a.m. 42.48 4.81 85.75 0.00 07Nov2017 1 a.m. 42.93 4.75 84.25 0.00 07Nov2017 2 a.m. 42.71 5.76 83.75 0.00 07Nov2017 3 a.m. 42.68 6.86 84.33 0.00 07Nov2017 4 a.m. 43.10 8.43 83.00 0.00 07Nov2017 5 a.m. 43.16 11.07 83.00 0.00 07Nov2017 6 a.m. 41.81 13.37 82.00 0.00 07Nov2017 7 a.m. 42.26 11.74 76.50 0.50 Accuml. Values 925.48 167.42 1726.99 1520.58 Num. Valid Values 21 21 21 21 Avg. Values 44.07 7.97 82.24 72.41 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 6.71 307.86 82.24 149.42 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.1776 definition: xcompl = 1 - (RELH_avg/100) TdC = 3.8930 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 = 0.5065 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4935 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.4462 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 = 1.7504 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 2.1486 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.051 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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