Detailed Weather Data for Project: PINE

Date Time TAIR WSPD RELH SRAD 05Mar2018 8 a.m. -901.00 -901.00 -901.00 -901.00 05Mar2018 9 a.m. 59.40 3.10 96.85 78.30 05Mar2018 10 a.m. -901.00 -901.00 -901.00 -901.00 05Mar2018 11 a.m. 67.03 14.00 62.27 650.80 05Mar2018 12 p.m. 63.54 17.60 41.92 819.20 05Mar2018 1 p.m. 62.98 17.00 35.68 878.90 05Mar2018 2 p.m. 64.60 16.70 30.19 858.00 05Mar2018 3 p.m. 64.31 18.00 25.79 773.70 05Mar2018 4 p.m. 63.93 16.80 24.60 626.60 05Mar2018 5 p.m. 63.01 13.70 24.38 245.00 05Mar2018 6 p.m. 60.96 11.30 25.96 64.50 05Mar2018 7 p.m. 58.55 17.90 17.53 1.90 05Mar2018 8 p.m. 56.55 3.60 31.52 0.00 05Mar2018 9 p.m. 54.91 5.10 33.66 0.00 05Mar2018 10 p.m. 53.51 4.30 36.66 0.00 05Mar2018 11 p.m. 50.41 1.60 55.45 0.00 06Mar2018 12 a.m. 47.62 1.20 79.28 0.00 06Mar2018 1 a.m. 43.88 0.50 92.21 0.00 06Mar2018 2 a.m. 43.43 2.30 95.03 0.00 06Mar2018 3 a.m. 42.62 3.10 94.55 0.00 06Mar2018 4 a.m. 40.75 1.70 98.44 0.00 06Mar2018 5 a.m. 40.28 3.20 98.98 0.00 06Mar2018 6 a.m. 39.65 4.40 94.20 0.00 06Mar2018 7 a.m. 40.23 4.80 91.75 0.00 Accuml. Values 1182.15 181.90 1286.90 4996.90 Num. Valid Values 22 22 22 22 Avg. Values 53.73 8.27 58.50 227.13 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 12.07 319.28 58.50 468.69 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.4150 definition: xcompl = 1 - (RELH_avg/100) TdC = 4.2299 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 = 0.5848 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4152 definition: del_lambda2 = 1 - del_lambda1 Qn = 4.5943 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 = 5.8370 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 6.3572 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.210 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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