Detailed Weather Data for Project: FCOB

Date Time TAIR WSPD RELH SRAD 04Nov2017 8 a.m. 44.06 9.17 99.00 1.50 04Nov2017 9 a.m. 44.64 4.19 99.00 82.25 04Nov2017 10 a.m. 50.60 3.43 95.67 200.33 04Nov2017 11 a.m. 58.28 5.20 83.75 445.25 04Nov2017 12 p.m. 66.08 5.07 65.67 570.67 04Nov2017 1 p.m. 73.85 6.65 45.00 639.50 04Nov2017 2 p.m. 78.20 10.59 37.00 670.33 04Nov2017 3 p.m. 80.24 10.18 37.25 604.00 04Nov2017 4 p.m. 82.44 10.51 33.00 487.50 04Nov2017 5 p.m. 83.93 10.74 29.00 308.50 04Nov2017 6 p.m. 82.22 9.06 25.50 150.00 04Nov2017 7 p.m. 73.76 3.13 32.00 0.00 04Nov2017 8 p.m. 64.22 5.59 49.00 0.00 04Nov2017 9 p.m. 66.56 4.70 51.00 0.00 04Nov2017 10 p.m. 63.86 5.82 63.00 0.00 04Nov2017 11 p.m. 63.54 7.05 65.75 0.00 05Nov2017 12 a.m. 60.48 5.87 67.25 0.00 05Nov2017 1 a.m. 59.54 7.10 73.25 0.00 05Nov2017 2 a.m. 60.26 9.17 71.67 0.00 05Nov2017 3 a.m. 63.20 8.20 64.33 0.00 05Nov2017 4 a.m. 65.75 8.50 53.75 0.00 05Nov2017 5 a.m. 59.00 8.61 65.50 0.00 05Nov2017 6 a.m. 55.26 6.93 73.75 0.00 05Nov2017 7 a.m. 57.65 5.59 65.50 2.00 Accuml. Values 1557.62 171.05 1445.59 4161.83 Num. Valid Values 24 24 24 24 Avg. Values 64.90 7.13 60.23 173.41 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 18.28 275.22 60.23 357.83 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3977 definition: xcompl = 1 - (RELH_avg/100) TdC = 10.5221 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 = 0.6662 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3338 definition: del_lambda2 = 1 - del_lambda1 Qn = 3.5390 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 = 8.2857 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 7.8311 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.196 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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