Detailed Weather Data for Project: TENK

Date Time TAIR WSPD RELH SRAD 30Dec2017 8 a.m. 35.06 6.71 79.50 2.00 30Dec2017 9 a.m. 32.90 5.14 83.33 13.67 30Dec2017 10 a.m. 30.38 7.21 91.25 23.75 30Dec2017 11 a.m. 29.30 7.08 91.67 53.67 30Dec2017 12 p.m. 28.76 5.76 88.75 63.00 30Dec2017 1 p.m. 28.88 6.93 83.00 133.67 30Dec2017 2 p.m. 28.22 6.21 79.00 159.00 30Dec2017 3 p.m. 27.77 6.88 78.75 108.25 30Dec2017 4 p.m. 27.05 5.87 79.25 44.75 30Dec2017 5 p.m. 26.15 5.82 80.25 12.75 30Dec2017 6 p.m. 25.34 5.14 81.00 0.00 30Dec2017 7 p.m. 24.98 2.68 81.00 0.00 30Dec2017 8 p.m. 24.80 3.13 80.50 0.00 30Dec2017 9 p.m. 24.44 4.40 81.67 0.00 30Dec2017 10 p.m. 24.89 1.23 84.00 0.00 30Dec2017 11 p.m. 25.12 2.57 84.00 0.00 31Dec2017 12 a.m. 25.16 3.24 85.00 0.00 31Dec2017 1 a.m. 24.71 3.97 89.00 0.00 31Dec2017 2 a.m. 24.04 5.20 93.50 0.00 31Dec2017 3 a.m. 23.72 3.47 95.00 0.00 31Dec2017 4 a.m. 23.32 5.98 91.75 0.00 31Dec2017 5 a.m. 20.66 7.05 90.50 0.00 31Dec2017 6 a.m. 18.01 7.44 91.50 0.00 31Dec2017 7 a.m. 17.06 7.61 85.50 0.00 Accuml. Values 620.72 126.72 2048.67 614.51 Num. Valid Values 24 24 24 24 Avg. Values 25.86 5.28 85.36 25.60 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values -3.41 203.89 85.36 52.84 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.1464 definition: xcompl = 1 - (RELH_avg/100) TdC = -5.5299 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 = 0.3515 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.6485 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.5918 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 = 0.7074 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 0.7457 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.011 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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