Detailed Weather Data for Project: FCOB

Date Time TAIR WSPD RELH SRAD 03Mar2018 8 a.m. 47.57 11.80 84.00 67.50 03Mar2018 9 a.m. 51.44 13.87 76.33 260.67 03Mar2018 10 a.m. 56.25 17.00 70.75 470.25 03Mar2018 11 a.m. 61.04 19.61 67.00 586.33 03Mar2018 12 p.m. 63.99 21.14 62.75 523.00 03Mar2018 1 p.m. 66.62 24.23 58.00 748.00 03Mar2018 2 p.m. 68.27 22.98 55.25 681.00 03Mar2018 3 p.m. 70.11 22.82 49.25 676.50 03Mar2018 4 p.m. 70.34 22.76 47.00 486.25 03Mar2018 5 p.m. 70.11 23.71 44.00 344.75 03Mar2018 6 p.m. 66.92 22.59 44.00 69.00 03Mar2018 7 p.m. 62.96 14.76 51.00 0.00 03Mar2018 8 p.m. 60.17 12.97 58.50 0.00 03Mar2018 9 p.m. 59.54 16.11 60.67 0.00 03Mar2018 10 p.m. 60.50 17.30 57.67 0.00 03Mar2018 11 p.m. 60.08 15.43 61.00 0.00 04Mar2018 12 a.m. 59.85 13.76 63.75 0.00 04Mar2018 1 a.m. 59.22 16.78 66.50 0.00 04Mar2018 2 a.m. 59.31 16.94 69.25 0.00 04Mar2018 3 a.m. 58.55 15.21 69.50 0.00 04Mar2018 4 a.m. 59.13 13.87 76.00 0.00 04Mar2018 5 a.m. 59.09 16.11 81.50 0.00 04Mar2018 6 a.m. 58.37 18.40 85.25 0.00 04Mar2018 7 a.m. 56.93 14.99 91.50 0.50 Accuml. Values 1466.36 425.14 1550.42 4913.75 Num. Valid Values 24 24 24 24 Avg. Values 61.10 17.71 64.60 204.74 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 16.17 684.05 64.60 422.48 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3540 definition: xcompl = 1 - (RELH_avg/100) TdC = 9.5712 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 = 0.6398 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3602 definition: del_lambda2 = 1 - del_lambda1 Qn = 4.2867 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 = 6.4453 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 12.3885 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.284 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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