Detailed Weather Data for Project: KEYS

Date Time TAIR WSPD RELH SRAD 04Nov2017 8 a.m. 52.77 5.15 100.33 1.00 04Nov2017 9 a.m. 53.20 4.30 100.45 13.00 04Nov2017 10 a.m. 54.19 2.38 100.38 48.00 04Nov2017 11 a.m. 55.63 2.11 100.39 42.00 04Nov2017 12 p.m. 57.94 2.29 95.02 86.00 04Nov2017 1 p.m. 60.46 0.98 88.91 107.00 04Nov2017 2 p.m. 61.02 5.37 87.14 206.00 04Nov2017 3 p.m. 62.98 7.98 78.64 127.00 04Nov2017 4 p.m. 64.63 4.92 79.45 200.00 04Nov2017 5 p.m. 64.98 5.45 75.48 252.00 04Nov2017 6 p.m. 65.95 6.19 71.80 70.00 04Nov2017 7 p.m. 64.29 2.36 76.81 6.00 04Nov2017 8 p.m. 54.54 13.36 73.34 0.00 04Nov2017 9 p.m. 61.90 5.75 84.03 0.00 04Nov2017 10 p.m. 58.60 3.45 92.88 0.00 04Nov2017 11 p.m. 60.01 7.34 92.69 0.00 05Nov2017 12 a.m. 63.43 4.29 96.24 0.00 05Nov2017 1 a.m. 69.91 3.88 84.93 0.00 05Nov2017 2 a.m. 70.90 4.35 83.34 0.00 05Nov2017 3 a.m. 67.71 3.80 93.06 0.00 05Nov2017 4 a.m. 69.57 4.31 87.80 1.00 05Nov2017 5 a.m. 71.24 4.69 83.78 0.00 05Nov2017 6 a.m. 71.78 5.88 79.07 0.00 05Nov2017 7 a.m. 71.35 7.73 78.22 1.00 Accuml. Values 1508.97 118.31 2084.18 1160.00 Num. Valid Values 24 24 24 24 Avg. Values 62.87 4.93 86.84 48.33 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 17.15 190.36 86.84 99.74 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.1316 definition: xcompl = 1 - (RELH_avg/100) TdC = 14.9391 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 = 0.6523 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3477 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.1327 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 = 2.5767 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 2.2357 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.034 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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