Detailed Weather Data for Project: MARI

Date Time TAIR WSPD RELH SRAD 06Nov2017 8 a.m. 31.01 10.45 90.32 69.00 06Nov2017 9 a.m. 33.08 9.86 78.58 225.00 06Nov2017 10 a.m. 36.39 9.72 69.43 463.00 06Nov2017 11 a.m. 38.25 7.85 61.72 584.00 06Nov2017 12 p.m. 43.18 6.41 47.92 651.00 06Nov2017 1 p.m. 44.96 6.17 46.89 644.00 06Nov2017 2 p.m. 47.26 7.01 42.31 548.00 06Nov2017 3 p.m. 48.13 7.91 42.00 455.00 06Nov2017 4 p.m. 47.37 8.77 44.39 215.00 06Nov2017 5 p.m. 45.84 12.10 50.74 96.00 06Nov2017 6 p.m. 43.41 6.95 52.51 1.00 06Nov2017 7 p.m. 38.91 9.15 54.83 0.00 06Nov2017 8 p.m. 39.58 8.26 62.46 0.00 06Nov2017 9 p.m. 38.14 8.24 64.78 0.00 06Nov2017 10 p.m. 37.60 8.91 69.24 0.00 06Nov2017 11 p.m. 36.82 8.38 73.39 0.00 07Nov2017 12 a.m. 35.73 8.18 75.47 1.00 07Nov2017 1 a.m. 34.95 7.26 77.24 0.00 07Nov2017 2 a.m. 34.63 9.20 80.48 0.00 07Nov2017 3 a.m. 35.06 14.36 81.15 0.00 07Nov2017 4 a.m. 36.93 14.79 75.59 0.00 07Nov2017 5 a.m. 36.72 10.13 77.36 0.00 07Nov2017 6 a.m. 34.74 12.89 82.18 0.00 07Nov2017 7 a.m. 32.54 11.30 87.92 1.00 Accuml. Values 931.22 224.25 1588.90 3953.00 Num. Valid Values 24 24 24 24 Avg. Values 38.80 9.34 66.20 164.71 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 3.78 360.82 66.20 339.88 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3380 definition: xcompl = 1 - (RELH_avg/100) TdC = -1.9070 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 = 0.4618 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5382 definition: del_lambda2 = 1 - del_lambda1 Qn = 2.4170 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 = 2.7063 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 3.5215 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.119 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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