Detailed Weather Data for Project: ELDR

Date Time TAIR WSPD RELH SRAD 04Nov2017 8 a.m. 47.35 4.10 101.36 0.00 04Nov2017 9 a.m. 47.50 3.20 101.36 4.60 04Nov2017 10 a.m. 48.18 6.10 101.36 42.30 04Nov2017 11 a.m. 49.01 5.10 101.36 55.40 04Nov2017 12 p.m. 50.05 4.40 101.37 88.10 04Nov2017 1 p.m. 50.74 2.80 101.37 86.40 04Nov2017 2 p.m. 51.35 2.20 101.36 68.90 04Nov2017 3 p.m. 52.09 2.80 99.58 74.50 04Nov2017 4 p.m. 53.22 1.60 96.22 91.60 04Nov2017 5 p.m. 54.73 4.20 88.93 89.20 04Nov2017 6 p.m. 55.15 4.70 86.94 35.20 04Nov2017 7 p.m. 54.57 5.00 89.19 0.00 04Nov2017 8 p.m. 47.07 5.30 77.16 0.00 04Nov2017 9 p.m. 53.20 3.40 94.06 0.00 04Nov2017 10 p.m. 51.76 5.90 98.23 0.00 04Nov2017 11 p.m. 51.57 3.80 99.16 0.00 05Nov2017 12 a.m. 51.60 2.50 99.19 0.00 05Nov2017 1 a.m. 50.97 4.70 99.22 0.00 05Nov2017 2 a.m. 51.85 3.30 100.63 0.00 05Nov2017 3 a.m. 53.08 3.30 100.59 0.00 05Nov2017 4 a.m. 53.96 5.50 99.80 0.00 05Nov2017 5 a.m. 53.01 6.20 100.58 0.00 05Nov2017 6 a.m. 52.90 7.60 101.23 0.00 05Nov2017 7 a.m. 52.70 6.80 101.26 0.00 Accuml. Values 1237.62 104.50 2341.51 636.20 Num. Valid Values 24 24 24 24 Avg. Values 51.57 4.35 97.56 26.51 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 10.87 168.14 97.56 54.70 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.0244 definition: xcompl = 1 - (RELH_avg/100) TdC = 10.4858 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 = 0.5677 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4323 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.4649 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 = 0.3299 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 0.3421 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.000 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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