Detailed Weather Data for Project: PINE

Date Time TAIR WSPD RELH SRAD 07Nov2017 8 a.m. 52.14 8.00 88.55 16.20 07Nov2017 9 a.m. 53.13 7.70 86.29 72.00 07Nov2017 10 a.m. 53.47 6.60 84.30 100.50 07Nov2017 11 a.m. 54.50 5.60 80.60 162.20 07Nov2017 12 p.m. 55.45 6.10 77.55 300.50 07Nov2017 1 p.m. 59.23 3.20 71.10 442.30 07Nov2017 2 p.m. 62.11 4.70 66.01 289.70 07Nov2017 3 p.m. 60.82 10.50 69.44 116.40 07Nov2017 4 p.m. 55.60 12.60 77.55 32.40 07Nov2017 5 p.m. 52.93 10.50 82.55 15.30 07Nov2017 6 p.m. 51.33 10.10 83.59 0.00 07Nov2017 7 p.m. 48.31 3.00 96.38 0.00 07Nov2017 8 p.m. 50.04 8.70 85.95 0.00 07Nov2017 9 p.m. 50.36 7.80 84.41 0.00 07Nov2017 10 p.m. 49.48 7.60 87.53 0.00 07Nov2017 11 p.m. 49.03 7.10 91.15 0.00 08Nov2017 12 a.m. 48.56 7.70 93.89 0.00 08Nov2017 1 a.m. 47.80 6.90 98.40 0.00 08Nov2017 2 a.m. 47.77 6.50 99.36 0.00 08Nov2017 3 a.m. 48.24 7.60 95.94 0.00 08Nov2017 4 a.m. 48.36 9.30 92.84 0.00 08Nov2017 5 a.m. 48.67 10.00 91.22 0.00 08Nov2017 6 a.m. 48.83 8.00 90.10 0.00 08Nov2017 7 a.m. 48.99 6.20 89.62 0.00 Accuml. Values 1245.16 182.00 2064.32 1547.50 Num. Valid Values 24 24 24 24 Avg. Values 51.88 7.58 86.01 64.48 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 11.05 292.84 86.01 133.05 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.1399 definition: xcompl = 1 - (RELH_avg/100) TdC = 8.7874 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 = 0.5702 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4298 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.3753 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 = 1.8515 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 2.1826 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.045 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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