Detailed Weather Data for Project: CANT

Date Time TAIR WSPD RELH SRAD 03Dec2017 8 a.m. 43.79 0.30 96.46 1.10 03Dec2017 9 a.m. 45.64 0.80 94.44 131.70 03Dec2017 10 a.m. 49.42 2.10 92.12 139.10 03Dec2017 11 a.m. 54.88 3.50 88.29 273.40 03Dec2017 12 p.m. 61.16 5.70 66.55 246.80 03Dec2017 1 p.m. 62.55 5.90 58.87 232.30 03Dec2017 2 p.m. 67.33 6.20 53.83 413.10 03Dec2017 3 p.m. 70.50 8.30 49.93 392.50 03Dec2017 4 p.m. 72.50 9.80 48.06 231.50 03Dec2017 5 p.m. 71.24 7.30 52.74 56.30 03Dec2017 6 p.m. 69.42 5.90 57.91 0.50 03Dec2017 7 p.m. 55.53 2.80 32.83 0.00 03Dec2017 8 p.m. 67.33 7.80 66.15 0.00 03Dec2017 9 p.m. 66.25 7.90 69.96 0.00 03Dec2017 10 p.m. 64.89 7.30 76.05 0.00 03Dec2017 11 p.m. 63.45 6.70 81.95 0.00 04Dec2017 12 a.m. 62.87 7.10 88.90 0.00 04Dec2017 1 a.m. 62.40 7.30 92.86 0.00 04Dec2017 2 a.m. 62.94 10.30 91.47 0.00 04Dec2017 3 a.m. 63.52 9.70 88.95 0.00 04Dec2017 4 a.m. 64.22 9.70 87.28 0.00 04Dec2017 5 a.m. 64.20 11.20 86.79 0.00 04Dec2017 6 a.m. 63.75 9.20 85.73 0.00 04Dec2017 7 a.m. 63.03 8.10 86.20 0.00 Accuml. Values 1492.82 160.90 1794.32 2118.30 Num. Valid Values 24 24 24 24 Avg. Values 62.20 6.70 74.76 88.26 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 16.78 258.89 74.76 182.13 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.2524 definition: xcompl = 1 - (RELH_avg/100) TdC = 12.3355 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 = 0.6476 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.3524 definition: del_lambda2 = 1 - del_lambda1 Qn = 1.1265 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 = 4.7664 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 4.6268 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.093 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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