Detailed Weather Data for Project: DENI

Date Time TAIR WSPD RELH SRAD 06Dec2017 8 a.m. 46.26 0.28 47.80 15.00 06Dec2017 9 a.m. 47.35 3.65 52.07 67.00 06Dec2017 10 a.m. 48.58 9.87 38.71 150.00 06Dec2017 11 a.m. 50.56 11.70 41.09 283.00 06Dec2017 12 p.m. 51.98 14.31 28.39 303.00 06Dec2017 1 p.m. 52.97 14.56 30.65 276.00 06Dec2017 2 p.m. 54.18 12.18 26.86 284.00 06Dec2017 3 p.m. 54.84 10.51 25.09 249.00 06Dec2017 4 p.m. 55.17 8.74 26.01 176.00 06Dec2017 5 p.m. 55.49 9.88 27.41 29.00 06Dec2017 6 p.m. 54.95 6.56 28.45 0.00 06Dec2017 7 p.m. 35.60 10.95 39.86 0.00 06Dec2017 8 p.m. 52.52 6.19 37.00 0.00 06Dec2017 9 p.m. 52.86 7.78 44.87 0.00 06Dec2017 10 p.m. 50.88 14.01 40.17 0.00 06Dec2017 11 p.m. 48.34 12.64 39.56 0.00 07Dec2017 12 a.m. 46.92 9.65 42.37 0.00 07Dec2017 1 a.m. 47.25 7.27 40.48 0.00 07Dec2017 2 a.m. 48.58 9.03 47.56 0.00 07Dec2017 3 a.m. 47.14 11.20 53.05 0.00 07Dec2017 4 a.m. 45.50 13.90 51.04 0.00 07Dec2017 5 a.m. 39.78 18.25 50.55 0.00 07Dec2017 6 a.m. 37.69 17.93 56.23 0.00 07Dec2017 7 a.m. 36.27 20.69 58.49 0.00 Accuml. Values 1161.64 261.73 973.76 1832.00 Num. Valid Values 24 24 24 24 Avg. Values 48.40 10.91 40.57 76.33 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 9.11 421.12 40.57 157.52 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.5943 definition: xcompl = 1 - (RELH_avg/100) TdC = -3.7001 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 = 0.5423 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4577 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.5933 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 = 6.9418 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 9.0297 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.175 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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