Detailed Weather Data for Project: CANT

Date Time TAIR WSPD RELH SRAD 02Dec2017 8 a.m. 39.22 1.20 96.90 13.30 02Dec2017 9 a.m. 42.08 1.20 91.00 172.00 02Dec2017 10 a.m. 47.97 0.90 81.18 343.30 02Dec2017 11 a.m. 54.07 0.70 70.82 474.80 02Dec2017 12 p.m. 57.78 0.80 64.17 550.60 02Dec2017 1 p.m. 60.85 0.40 59.64 563.20 02Dec2017 2 p.m. 63.23 1.40 58.97 504.10 02Dec2017 3 p.m. 62.08 2.40 62.40 409.10 02Dec2017 4 p.m. 61.52 2.00 62.56 208.00 02Dec2017 5 p.m. 60.71 2.30 62.84 62.00 02Dec2017 6 p.m. 58.62 1.30 67.61 0.50 02Dec2017 7 p.m. 68.22 6.20 62.37 0.00 02Dec2017 8 p.m. 53.76 1.00 78.57 0.00 02Dec2017 9 p.m. 50.18 1.50 85.34 0.00 02Dec2017 10 p.m. 48.60 0.80 89.15 0.00 02Dec2017 11 p.m. 48.25 3.00 91.68 0.00 03Dec2017 12 a.m. 48.29 1.40 93.07 0.00 03Dec2017 1 a.m. 47.79 0.40 93.78 0.00 03Dec2017 2 a.m. 46.33 1.90 96.23 0.00 03Dec2017 3 a.m. 45.82 0.90 97.80 0.00 03Dec2017 4 a.m. 45.16 0.80 96.63 0.00 03Dec2017 5 a.m. 44.26 0.70 95.44 0.00 03Dec2017 6 a.m. 44.26 0.60 95.96 0.00 03Dec2017 7 a.m. 44.51 0.40 96.53 0.00 Accuml. Values 1243.54 34.20 1950.64 3300.90 Num. Valid Values 24 24 24 24 Avg. Values 51.81 1.42 81.28 137.54 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 11.01 55.03 81.28 283.81 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.1872 definition: xcompl = 1 - (RELH_avg/100) TdC = 7.9364 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 = 0.5697 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4303 definition: del_lambda2 = 1 - del_lambda1 Qn = 2.1214 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 = 2.4550 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 1.2775 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.069 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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