Detailed Weather Data for Project: DENI

Date Time TAIR WSPD RELH SRAD 07Mar2018 8 a.m. 38.14 12.69 56.41 204.00 07Mar2018 9 a.m. 38.14 11.13 53.79 132.00 07Mar2018 10 a.m. 39.00 8.31 49.82 657.00 07Mar2018 11 a.m. 41.97 13.86 52.32 820.00 07Mar2018 12 p.m. 44.62 14.64 49.57 904.00 07Mar2018 1 p.m. 46.90 12.79 41.94 939.00 07Mar2018 2 p.m. 48.90 9.15 38.46 721.00 07Mar2018 3 p.m. 51.21 6.28 40.23 776.00 07Mar2018 4 p.m. 54.61 3.70 28.57 492.00 07Mar2018 5 p.m. 55.15 2.06 24.84 345.00 07Mar2018 6 p.m. 54.28 1.89 32.78 124.00 07Mar2018 7 p.m. 59.34 4.61 31.14 1.00 07Mar2018 8 p.m. 49.33 3.22 43.47 0.00 07Mar2018 9 p.m. 48.47 2.54 46.76 0.00 07Mar2018 10 p.m. 48.02 1.92 46.70 0.00 07Mar2018 11 p.m. 47.35 0.57 51.64 0.00 08Mar2018 12 a.m. 40.42 1.07 69.53 0.00 08Mar2018 1 a.m. 41.32 1.32 67.83 0.00 08Mar2018 2 a.m. 41.76 0.39 64.65 0.00 08Mar2018 3 a.m. 36.91 0.10 89.49 0.00 08Mar2018 4 a.m. 38.01 1.19 87.54 0.00 08Mar2018 5 a.m. 40.33 0.56 72.77 0.00 08Mar2018 6 a.m. 39.78 2.88 68.25 0.00 08Mar2018 7 a.m. 39.67 0.57 73.43 13.00 Accuml. Values 1083.65 117.44 1281.93 6128.00 Num. Valid Values 24 24 24 24 Avg. Values 45.15 4.89 53.41 255.33 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 7.31 188.96 53.41 526.89 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.4659 definition: xcompl = 1 - (RELH_avg/100) TdC = -1.5388 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 = 0.5155 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4845 definition: del_lambda2 = 1 - del_lambda1 Qn = 4.9847 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 = 4.7890 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 3.8413 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.174 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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