Detailed Weather Data for Project: DENI

Date Time TAIR WSPD RELH SRAD 02Dec2017 8 a.m. 57.90 2.22 74.29 26.00 02Dec2017 9 a.m. 63.30 3.76 64.16 268.00 02Dec2017 10 a.m. 67.03 9.56 61.23 423.00 02Dec2017 11 a.m. 69.78 9.72 58.24 512.00 02Dec2017 12 p.m. 70.77 7.40 57.14 571.00 02Dec2017 1 p.m. 72.07 8.51 52.86 450.00 02Dec2017 2 p.m. 73.85 8.05 50.67 441.00 02Dec2017 3 p.m. 74.93 6.09 49.14 321.00 02Dec2017 4 p.m. 75.06 6.75 49.45 248.00 02Dec2017 5 p.m. 73.63 5.85 52.50 44.00 02Dec2017 6 p.m. 70.88 5.17 57.63 0.00 02Dec2017 7 p.m. 70.11 9.35 73.75 1.00 02Dec2017 8 p.m. 66.69 5.10 67.21 0.00 02Dec2017 9 p.m. 64.72 4.96 69.84 0.00 02Dec2017 10 p.m. 64.40 4.36 70.63 0.00 02Dec2017 11 p.m. 62.85 4.22 74.05 0.00 03Dec2017 12 a.m. 61.30 0.44 78.62 0.00 03Dec2017 1 a.m. 60.12 3.80 82.36 0.00 03Dec2017 2 a.m. 58.78 5.39 85.35 0.00 03Dec2017 3 a.m. 59.77 0.55 83.26 0.00 03Dec2017 4 a.m. 60.55 6.22 80.53 0.00 03Dec2017 5 a.m. 59.88 5.15 82.17 0.00 03Dec2017 6 a.m. 59.67 5.75 82.42 0.00 03Dec2017 7 a.m. 60.12 6.70 80.59 0.00 Accuml. Values 1578.16 135.07 1638.09 3305.00 Num. Valid Values 24 24 24 24 Avg. Values 65.76 5.63 68.25 137.71 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 18.75 217.33 68.25 284.16 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3175 definition: xcompl = 1 - (RELH_avg/100) TdC = 12.8731 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 = 0.6720 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3280 definition: del_lambda2 = 1 - del_lambda1 Qn = 2.5523 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 = 6.7814 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 5.6605 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.141 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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