Detailed Weather Data for Project: FSUP

Date Time TAIR WSPD RELH SRAD 05Dec2017 8 a.m. 29.30 3.60 39.37 0.00 05Dec2017 9 a.m. 28.29 3.80 44.84 27.40 05Dec2017 10 a.m. 30.25 3.80 44.16 178.00 05Dec2017 11 a.m. 33.39 5.50 36.67 271.90 05Dec2017 12 p.m. 36.39 6.30 31.30 425.80 05Dec2017 1 p.m. 39.15 4.40 28.10 451.60 05Dec2017 2 p.m. 40.59 4.30 26.60 442.30 05Dec2017 3 p.m. 42.82 4.90 24.21 389.90 05Dec2017 4 p.m. 43.72 5.80 23.47 95.30 05Dec2017 5 p.m. 43.50 4.90 23.70 26.80 05Dec2017 6 p.m. 40.66 4.10 27.57 0.40 05Dec2017 7 p.m. 38.61 5.20 29.85 0.00 05Dec2017 8 p.m. 34.93 4.70 35.30 0.00 05Dec2017 9 p.m. 30.87 2.90 45.62 0.00 05Dec2017 10 p.m. 29.64 4.20 52.44 0.00 05Dec2017 11 p.m. 29.21 4.40 53.60 0.00 06Dec2017 12 a.m. 29.23 3.30 51.79 0.00 06Dec2017 1 a.m. 25.92 1.70 59.44 0.00 06Dec2017 2 a.m. 22.32 1.40 63.90 0.00 06Dec2017 3 a.m. 21.20 2.10 65.78 0.00 06Dec2017 4 a.m. 22.80 2.00 61.70 0.00 06Dec2017 5 a.m. 23.43 4.40 57.99 0.00 06Dec2017 6 a.m. 24.55 12.20 52.55 0.00 06Dec2017 7 a.m. 24.04 11.50 52.84 0.00 Accuml. Values 764.80 111.40 1032.79 2309.40 Num. Valid Values 24 24 24 24 Avg. Values 31.87 4.64 43.03 96.22 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values -0.07 179.24 43.03 198.56 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.5697 definition: xcompl = 1 - (RELH_avg/100) TdC = -11.2509 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 = 0.4024 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5976 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.7739 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 = 3.5089 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 2.8365 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.079 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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