Detailed Weather Data for Project: DENI

Date Time TAIR WSPD RELH SRAD 03Mar2018 8 a.m. 47.35 9.12 89.38 156.00 03Mar2018 9 a.m. 50.43 9.20 81.44 191.00 03Mar2018 10 a.m. 55.15 11.16 66.23 585.00 03Mar2018 11 a.m. 57.69 9.99 61.47 763.00 03Mar2018 12 p.m. 62.19 8.39 54.63 840.00 03Mar2018 1 p.m. 64.49 8.49 53.29 867.00 03Mar2018 2 p.m. 66.15 10.58 51.03 660.00 03Mar2018 3 p.m. 68.13 9.64 48.41 724.00 03Mar2018 4 p.m. 68.99 11.25 47.25 463.00 03Mar2018 5 p.m. 69.12 11.16 46.09 332.00 03Mar2018 6 p.m. 67.24 11.56 47.80 54.00 03Mar2018 7 p.m. 59.43 5.29 83.69 0.00 03Mar2018 8 p.m. 62.31 7.48 55.56 0.00 03Mar2018 9 p.m. 62.85 7.36 53.29 0.00 03Mar2018 10 p.m. 61.86 5.12 55.68 0.00 03Mar2018 11 p.m. 61.00 5.49 56.65 0.00 04Mar2018 12 a.m. 60.76 5.26 56.71 0.00 04Mar2018 1 a.m. 60.12 4.56 58.61 0.00 04Mar2018 2 a.m. 60.21 5.05 57.50 0.00 04Mar2018 3 a.m. 60.42 5.07 56.77 0.00 04Mar2018 4 a.m. 59.45 5.53 60.50 0.00 04Mar2018 5 a.m. 59.43 5.99 61.23 0.00 04Mar2018 6 a.m. 59.13 6.18 66.85 0.00 04Mar2018 7 a.m. 56.80 6.22 70.99 1.00 Accuml. Values 1460.69 185.14 1441.05 5636.00 Num. Valid Values 24 24 24 24 Avg. Values 60.86 7.71 60.04 234.83 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 16.03 297.89 60.04 484.58 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3996 definition: xcompl = 1 - (RELH_avg/100) TdC = 8.3534 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 = 0.6381 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3619 definition: del_lambda2 = 1 - del_lambda1 Qn = 5.1674 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 = 7.2357 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 7.3261 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.234 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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