Detailed Weather Data for Project: TORO

Date Time TAIR WSPD RELH SRAD 02Jan2018 8 a.m. 5.05 0.30 57.84 0.80 02Jan2018 9 a.m. 6.08 0.20 57.12 85.10 02Jan2018 10 a.m. 8.33 0.10 53.41 158.20 02Jan2018 11 a.m. 12.76 0.50 47.41 414.70 02Jan2018 12 p.m. 15.78 2.10 38.33 315.90 02Jan2018 1 p.m. 17.55 2.20 34.49 274.70 02Jan2018 2 p.m. 18.55 3.50 35.21 256.70 02Jan2018 3 p.m. 20.16 3.70 33.13 270.40 02Jan2018 4 p.m. 20.53 4.50 33.02 121.00 02Jan2018 5 p.m. 20.75 3.70 34.74 23.90 02Jan2018 6 p.m. 19.83 2.50 37.69 0.00 02Jan2018 7 p.m. 27.23 0.60 49.85 0.00 02Jan2018 8 p.m. 15.19 3.10 44.62 0.00 02Jan2018 9 p.m. 15.69 3.50 45.45 0.00 02Jan2018 10 p.m. 16.14 5.20 42.67 0.00 02Jan2018 11 p.m. 15.39 5.20 45.46 0.00 03Jan2018 12 a.m. 15.26 4.10 47.49 0.00 03Jan2018 1 a.m. 17.47 5.00 45.20 0.00 03Jan2018 2 a.m. 19.00 5.10 43.32 0.00 03Jan2018 3 a.m. 18.43 3.90 45.04 0.00 03Jan2018 4 a.m. 17.19 1.60 47.92 0.00 03Jan2018 5 a.m. 16.02 0.80 51.69 0.00 03Jan2018 6 a.m. 16.75 2.60 52.48 0.00 03Jan2018 7 a.m. 17.01 2.20 57.36 0.00 Accuml. Values 392.14 66.20 1080.94 1921.40 Num. Valid Values 24 24 24 24 Avg. Values 16.34 2.76 45.04 80.06 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values -8.70 106.52 45.04 165.20 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.5496 definition: xcompl = 1 - (RELH_avg/100) TdC = -18.5646 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 = 0.2747 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.7253 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.3046 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 = 1.7664 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 1.2026 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.038 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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