Detailed Weather Data for Project: TENK

Date Time TAIR WSPD RELH SRAD 06Mar2018 8 a.m. 41.63 2.96 41.50 153.00 06Mar2018 9 a.m. 46.58 7.31 30.33 358.00 06Mar2018 10 a.m. 50.27 10.01 24.50 562.75 06Mar2018 11 a.m. 52.40 11.26 21.67 708.67 06Mar2018 12 p.m. 55.31 14.26 18.25 811.50 06Mar2018 1 p.m. 56.54 14.32 17.33 840.33 06Mar2018 2 p.m. 57.11 17.90 17.50 779.50 06Mar2018 3 p.m. 57.20 15.49 16.25 667.75 06Mar2018 4 p.m. 56.75 13.87 15.75 483.00 06Mar2018 5 p.m. 54.63 15.83 16.00 278.75 06Mar2018 6 p.m. 48.56 14.09 30.00 28.00 06Mar2018 7 p.m. 43.34 10.74 44.00 0.00 06Mar2018 8 p.m. 39.74 14.76 46.00 0.00 06Mar2018 9 p.m. 38.39 10.74 47.00 0.00 06Mar2018 10 p.m. 36.92 7.46 50.00 0.00 06Mar2018 11 p.m. 35.69 8.50 52.25 0.00 07Mar2018 12 a.m. 34.11 7.55 55.50 0.00 07Mar2018 1 a.m. 32.45 5.76 59.50 0.00 07Mar2018 2 a.m. 31.33 4.64 62.75 0.00 07Mar2018 3 a.m. 30.56 5.37 66.00 0.00 07Mar2018 4 a.m. 30.02 4.98 68.25 0.00 07Mar2018 5 a.m. 29.12 5.03 71.50 0.00 07Mar2018 6 a.m. 27.82 3.63 75.50 0.00 07Mar2018 7 a.m. 27.59 3.58 77.50 8.00 Accuml. Values 1014.06 230.04 1024.83 5679.25 Num. Valid Values 24 24 24 24 Avg. Values 42.25 9.59 42.70 236.64 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 5.70 370.13 42.70 488.30 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.5730 definition: xcompl = 1 - (RELH_avg/100) TdC = -6.1023 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 = 0.4912 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5088 definition: del_lambda2 = 1 - del_lambda1 Qn = 4.3453 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 = 5.3048 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 6.4846 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.214 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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