Detailed Weather Data for Project: PINE

Date Time TAIR WSPD RELH SRAD 06Mar2018 8 a.m. 40.57 4.10 88.04 85.90 06Mar2018 9 a.m. 44.76 6.40 75.35 312.30 06Mar2018 10 a.m. 51.55 13.00 33.90 532.90 06Mar2018 11 a.m. 54.41 15.20 24.99 717.60 06Mar2018 12 p.m. 56.43 13.20 19.81 851.40 06Mar2018 1 p.m. 58.14 10.70 19.31 910.00 06Mar2018 2 p.m. 59.52 14.20 17.42 892.30 06Mar2018 3 p.m. 60.60 13.50 16.97 802.50 06Mar2018 4 p.m. 60.91 15.70 16.91 641.80 06Mar2018 5 p.m. 61.20 13.90 16.67 426.40 06Mar2018 6 p.m. 60.24 16.00 17.01 170.00 06Mar2018 7 p.m. 50.81 5.20 39.31 0.60 06Mar2018 8 p.m. 56.75 13.90 20.00 0.00 06Mar2018 9 p.m. 55.44 18.30 20.04 0.00 06Mar2018 10 p.m. 52.07 23.90 28.63 0.00 06Mar2018 11 p.m. 49.10 20.20 33.82 0.00 07Mar2018 12 a.m. 45.91 20.60 38.64 0.00 07Mar2018 1 a.m. 43.66 19.30 43.07 0.00 07Mar2018 2 a.m. 42.12 19.40 45.04 0.00 07Mar2018 3 a.m. 40.80 15.40 48.39 0.00 07Mar2018 4 a.m. 39.34 15.20 52.00 0.00 07Mar2018 5 a.m. 37.90 10.50 54.48 0.00 07Mar2018 6 a.m. 37.08 10.60 57.53 0.00 07Mar2018 7 a.m. 35.91 5.80 63.52 0.00 Accuml. Values 1195.21 334.20 890.85 6343.70 Num. Valid Values 24 24 24 24 Avg. Values 49.80 13.92 37.12 264.32 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 9.89 537.73 37.12 545.43 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.6288 definition: xcompl = 1 - (RELH_avg/100) TdC = -4.2114 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 = 0.5536 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4464 definition: del_lambda2 = 1 - del_lambda1 Qn = 5.4698 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 = 7.7396 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 11.9842 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.330 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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