Detailed Weather Data for Project: PINE

Date Time TAIR WSPD RELH SRAD 04Mar2018 8 a.m. 52.72 7.60 66.41 0.70 04Mar2018 9 a.m. 52.83 8.20 68.64 43.10 04Mar2018 10 a.m. 52.90 7.80 73.98 70.50 04Mar2018 11 a.m. 53.74 6.30 74.98 61.90 04Mar2018 12 p.m. 51.06 7.30 95.32 31.20 04Mar2018 1 p.m. 50.43 7.80 100.09 96.70 04Mar2018 2 p.m. -901.00 -901.00 -901.00 -901.00 04Mar2018 3 p.m. -901.00 -901.00 -901.00 -901.00 04Mar2018 4 p.m. -901.00 -901.00 -901.00 -901.00 04Mar2018 5 p.m. -901.00 -901.00 -901.00 -901.00 04Mar2018 6 p.m. -901.00 -901.00 -901.00 -901.00 04Mar2018 7 p.m. 59.13 6.00 26.76 0.00 04Mar2018 8 p.m. -901.00 -901.00 -901.00 -901.00 04Mar2018 9 p.m. -901.00 -901.00 -901.00 -901.00 04Mar2018 10 p.m. -901.00 -901.00 -901.00 -901.00 04Mar2018 11 p.m. -901.00 -901.00 -901.00 -901.00 05Mar2018 12 a.m. -901.00 -901.00 -901.00 -901.00 05Mar2018 1 a.m. -901.00 -901.00 -901.00 -901.00 05Mar2018 2 a.m. -901.00 -901.00 -901.00 -901.00 05Mar2018 3 a.m. -901.00 -901.00 -901.00 -901.00 05Mar2018 4 a.m. -901.00 -901.00 -901.00 -901.00 05Mar2018 5 a.m. -901.00 -901.00 -901.00 -901.00 05Mar2018 6 a.m. -901.00 -901.00 -901.00 -901.00 05Mar2018 7 a.m. -901.00 -901.00 -901.00 -901.00 Accuml. Values 372.81 51.00 506.18 304.10 Num. Valid Values 7 7 7 7 Avg. Values 53.26 7.29 72.31 43.44 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 11.81 281.35 72.31 89.65 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.2769 definition: xcompl = 1 - (RELH_avg/100) TdC = 7.0428 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 = 0.5811 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4189 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.0825 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 = 3.8063 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 4.0071 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.064 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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