Detailed Weather Data for Project: TENK

Date Time TAIR WSPD RELH SRAD 08Nov2017 8 a.m. 41.22 2.80 90.00 39.25 08Nov2017 9 a.m. 41.78 3.50 87.33 85.00 08Nov2017 10 a.m. 43.25 3.91 83.75 155.00 08Nov2017 11 a.m. 44.78 4.47 79.33 191.67 08Nov2017 12 p.m. 46.58 4.14 75.00 287.25 08Nov2017 1 p.m. 47.66 5.07 72.67 252.00 08Nov2017 2 p.m. 48.87 4.87 69.50 265.25 08Nov2017 3 p.m. 50.40 3.69 64.00 226.25 08Nov2017 4 p.m. 51.30 2.85 61.50 183.50 08Nov2017 5 p.m. 51.35 1.45 57.50 88.50 08Nov2017 6 p.m. 40.82 1.12 91.00 0.00 08Nov2017 7 p.m. 37.76 0.22 96.00 0.00 08Nov2017 8 p.m. 37.04 2.35 98.00 0.00 08Nov2017 9 p.m. 35.54 1.27 98.67 0.00 08Nov2017 10 p.m. 34.28 1.27 99.33 0.00 08Nov2017 11 p.m. 33.08 0.00 100.00 0.00 09Nov2017 12 a.m. 32.76 0.62 100.00 0.00 09Nov2017 1 a.m. 32.13 0.78 100.00 0.00 09Nov2017 2 a.m. 32.22 0.22 100.00 0.00 09Nov2017 3 a.m. 31.40 0.52 100.00 0.00 09Nov2017 4 a.m. 31.64 0.67 100.00 0.00 09Nov2017 5 a.m. 31.01 0.56 100.00 0.00 09Nov2017 6 a.m. 30.47 1.06 100.00 0.00 09Nov2017 7 a.m. 30.47 1.12 100.00 4.50 Accuml. Values 937.81 48.53 2123.58 1778.17 Num. Valid Values 24 23 24 24 Avg. Values 39.08 2.11 88.48 74.09 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 3.93 81.48 88.48 152.89 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.1152 definition: xcompl = 1 - (RELH_avg/100) TdC = 2.1787 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 = 0.4642 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5358 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.4176 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 = 0.9488 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 0.6266 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.021 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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