Detailed Weather Data for Project: DENI

Date Time TAIR WSPD RELH SRAD 04Dec2017 8 a.m. 67.89 9.70 88.02 43.00 04Dec2017 9 a.m. 69.46 11.09 83.09 202.00 04Dec2017 10 a.m. 71.87 10.31 75.64 380.00 04Dec2017 11 a.m. 74.84 21.91 66.97 553.00 04Dec2017 12 p.m. 75.60 22.42 64.58 540.00 04Dec2017 1 p.m. 77.23 21.25 61.47 470.00 04Dec2017 2 p.m. 78.80 16.58 56.84 433.00 04Dec2017 3 p.m. 79.56 16.94 55.25 374.00 04Dec2017 4 p.m. 79.45 15.60 54.40 250.00 04Dec2017 5 p.m. 78.80 13.05 54.64 64.00 04Dec2017 6 p.m. 76.93 10.01 59.65 0.00 04Dec2017 7 p.m. 44.28 5.22 36.14 0.00 04Dec2017 8 p.m. 67.35 8.87 58.72 0.00 04Dec2017 9 p.m. 62.73 12.61 46.94 0.00 04Dec2017 10 p.m. 61.86 13.65 28.02 0.00 04Dec2017 11 p.m. 60.01 11.36 29.49 0.00 05Dec2017 12 a.m. 57.69 17.67 35.84 0.00 05Dec2017 1 a.m. 55.15 17.31 39.07 0.00 05Dec2017 2 a.m. 52.75 15.11 43.10 0.00 05Dec2017 3 a.m. 51.31 15.05 38.64 0.00 05Dec2017 4 a.m. 49.44 16.26 42.31 0.00 05Dec2017 5 a.m. 47.68 17.67 40.96 0.00 05Dec2017 6 a.m. 46.71 17.77 49.33 0.00 05Dec2017 7 a.m. 45.16 18.16 48.05 0.00 Accuml. Values 1532.53 355.57 1257.16 3309.00 Num. Valid Values 24 24 24 24 Avg. Values 63.86 14.82 52.38 137.88 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 17.70 572.11 52.38 284.51 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.4762 definition: xcompl = 1 - (RELH_avg/100) TdC = 7.8572 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 = 0.6591 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3409 definition: del_lambda2 = 1 - del_lambda1 Qn = 2.4946 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 = 9.6273 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 15.2533 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.269 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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