Detailed Weather Data for Project: FALL

Date Time TAIR WSPD RELH SRAD 07Mar2018 8 a.m. 27.28 9.50 75.36 78.50 07Mar2018 9 a.m. 30.49 10.20 73.08 308.50 07Mar2018 10 a.m. 33.08 13.80 68.08 454.60 07Mar2018 11 a.m. 35.82 13.00 60.78 660.60 07Mar2018 12 p.m. 40.10 12.50 47.81 743.80 07Mar2018 1 p.m. 42.76 17.00 35.85 775.60 07Mar2018 2 p.m. 44.51 16.80 32.85 734.30 07Mar2018 3 p.m. 45.99 15.90 33.80 623.10 07Mar2018 4 p.m. 47.25 15.00 33.20 468.60 07Mar2018 5 p.m. 48.15 16.50 31.20 231.40 07Mar2018 6 p.m. 48.20 15.10 30.70 95.10 07Mar2018 7 p.m. 48.09 3.90 32.63 0.10 07Mar2018 8 p.m. 44.42 4.40 39.34 0.00 07Mar2018 9 p.m. 41.47 1.90 37.80 0.00 07Mar2018 10 p.m. 38.52 3.10 51.77 0.00 07Mar2018 11 p.m. 37.00 3.80 53.56 0.00 08Mar2018 12 a.m. 35.13 5.30 54.50 0.00 08Mar2018 1 a.m. 33.60 5.50 54.98 0.00 08Mar2018 2 a.m. 32.07 5.80 57.41 0.00 08Mar2018 3 a.m. 30.70 6.40 59.05 0.00 08Mar2018 4 a.m. 29.77 5.90 65.53 0.00 08Mar2018 5 a.m. 28.62 5.40 68.17 0.00 08Mar2018 6 a.m. 28.13 6.00 74.81 0.00 08Mar2018 7 a.m. 27.30 5.00 75.47 2.50 Accuml. Values 898.45 217.70 1247.73 5176.70 Num. Valid Values 24 24 24 24 Avg. Values 37.44 9.07 51.99 215.70 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 3.02 350.28 51.99 445.09 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.4801 definition: xcompl = 1 - (RELH_avg/100) TdC = -5.9053 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 = 0.4501 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5499 definition: del_lambda2 = 1 - del_lambda1 Qn = 3.6141 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 = 3.6737 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 4.5123 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.162 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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