Detailed Weather Data for Project: TORO

Date Time TAIR WSPD RELH SRAD 06Dec2017 8 a.m. 31.03 2.00 59.37 27.50 06Dec2017 9 a.m. 35.28 2.90 49.92 167.80 06Dec2017 10 a.m. 40.01 4.90 44.60 361.90 06Dec2017 11 a.m. 43.41 5.60 41.07 379.40 06Dec2017 12 p.m. 46.44 4.30 39.90 508.00 06Dec2017 1 p.m. 48.58 7.00 36.42 506.50 06Dec2017 2 p.m. 49.15 8.00 31.53 461.90 06Dec2017 3 p.m. 49.30 8.50 27.11 353.00 06Dec2017 4 p.m. 49.10 6.10 28.81 200.80 06Dec2017 5 p.m. 48.00 6.00 29.43 32.90 06Dec2017 6 p.m. 45.36 4.90 32.48 0.00 06Dec2017 7 p.m. 26.87 2.20 43.03 0.00 06Dec2017 8 p.m. 41.40 5.60 40.88 0.00 06Dec2017 9 p.m. 40.69 5.80 49.94 0.00 06Dec2017 10 p.m. 38.34 6.40 58.03 0.00 06Dec2017 11 p.m. 35.38 4.90 58.69 0.00 07Dec2017 12 a.m. 32.67 6.50 60.24 0.00 07Dec2017 1 a.m. 30.94 4.20 57.88 0.00 07Dec2017 2 a.m. 29.07 4.40 60.37 0.00 07Dec2017 3 a.m. 26.29 5.00 62.60 0.00 07Dec2017 4 a.m. 25.45 3.80 68.17 0.00 07Dec2017 5 a.m. 23.07 6.20 68.73 0.00 07Dec2017 6 a.m. 20.32 5.30 71.27 0.00 07Dec2017 7 a.m. 19.67 5.90 72.87 0.00 Accuml. Values 875.80 126.40 1193.34 2999.70 Num. Valid Values 24 24 24 24 Avg. Values 36.49 5.27 49.72 124.99 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 2.50 203.38 49.72 257.91 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.5028 definition: xcompl = 1 - (RELH_avg/100) TdC = -6.9918 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 = 0.4421 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5579 definition: del_lambda2 = 1 - del_lambda1 Qn = 1.4579 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 = 3.7122 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 3.2027 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.096 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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