Detailed Weather Data for Project: FGIB

Date Time TAIR WSPD RELH SRAD 04Mar2018 8 a.m. 56.05 3.18 50.98 11.00 04Mar2018 9 a.m. 57.02 2.52 50.79 58.00 04Mar2018 10 a.m. 57.04 1.81 51.47 83.00 04Mar2018 11 a.m. 58.33 2.35 48.71 119.00 04Mar2018 12 p.m. 58.57 3.29 51.09 130.00 04Mar2018 1 p.m. 58.33 4.36 53.41 132.00 04Mar2018 2 p.m. 58.14 4.56 54.76 163.00 04Mar2018 3 p.m. 57.24 4.21 59.03 93.00 04Mar2018 4 p.m. 57.13 2.99 61.90 96.00 04Mar2018 5 p.m. 57.58 3.41 63.55 35.00 04Mar2018 6 p.m. 57.79 4.08 64.34 28.00 04Mar2018 7 p.m. 54.72 0.62 49.26 5.00 04Mar2018 8 p.m. 56.48 2.74 71.91 1.00 04Mar2018 9 p.m. 56.25 3.61 74.41 0.00 04Mar2018 10 p.m. 55.71 5.36 71.67 0.00 04Mar2018 11 p.m. 56.14 6.40 70.44 0.00 05Mar2018 12 a.m. 56.70 7.93 68.18 0.00 05Mar2018 1 a.m. 56.80 6.43 69.59 0.00 05Mar2018 2 a.m. 57.34 7.49 71.18 0.00 05Mar2018 3 a.m. 57.79 7.41 74.04 0.00 05Mar2018 4 a.m. 59.32 6.16 77.16 0.00 05Mar2018 5 a.m. 60.44 7.78 80.89 0.00 05Mar2018 6 a.m. 60.76 3.54 84.42 0.00 05Mar2018 7 a.m. 60.66 2.33 85.34 1.00 Accuml. Values 1382.32 104.56 1558.52 955.00 Num. Valid Values 24 24 24 24 Avg. Values 57.60 4.36 64.94 39.79 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 14.22 168.24 64.94 82.11 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3506 definition: xcompl = 1 - (RELH_avg/100) TdC = 7.7934 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 = 0.6142 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3858 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.1258 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 = 5.6412 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 4.1614 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.060 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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