Detailed Weather Data for Project: FSUP

Date Time TAIR WSPD RELH SRAD 04Dec2017 8 a.m. 53.19 8.60 80.55 0.10 04Dec2017 9 a.m. 53.01 7.30 70.77 56.40 04Dec2017 10 a.m. 59.11 11.00 42.09 249.70 04Dec2017 11 a.m. 62.10 19.50 33.10 299.10 04Dec2017 12 p.m. 58.33 13.60 37.77 323.40 04Dec2017 1 p.m. 57.81 12.80 29.43 356.70 04Dec2017 2 p.m. 59.23 15.30 23.67 505.00 04Dec2017 3 p.m. 59.18 17.60 18.20 393.60 04Dec2017 4 p.m. 56.61 12.60 18.81 111.30 04Dec2017 5 p.m. 52.79 9.70 23.78 40.10 04Dec2017 6 p.m. 49.95 9.50 28.91 0.00 04Dec2017 7 p.m. 38.79 4.90 29.78 0.00 04Dec2017 8 p.m. 44.06 4.10 41.51 0.00 04Dec2017 9 p.m. 42.24 5.00 45.82 0.00 04Dec2017 10 p.m. 39.85 4.60 50.65 0.00 04Dec2017 11 p.m. 37.80 4.50 54.18 0.00 05Dec2017 12 a.m. 36.43 4.00 54.90 0.00 05Dec2017 1 a.m. 34.79 4.00 54.73 0.00 05Dec2017 2 a.m. 32.88 4.90 54.97 0.00 05Dec2017 3 a.m. 32.09 4.30 51.94 0.00 05Dec2017 4 a.m. 30.13 3.20 45.01 0.00 05Dec2017 5 a.m. 29.52 4.10 44.45 0.00 05Dec2017 6 a.m. 29.57 3.80 44.63 0.00 05Dec2017 7 a.m. 29.62 3.50 39.89 0.00 Accuml. Values 1079.06 192.40 1019.54 2335.40 Num. Valid Values 24 24 24 24 Avg. Values 44.96 8.02 42.48 97.31 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 7.20 309.57 42.48 200.80 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.5752 definition: xcompl = 1 - (RELH_avg/100) TdC = -4.8050 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 = 0.5139 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4861 definition: del_lambda2 = 1 - del_lambda1 Qn = 1.0070 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 = 5.9031 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 6.2862 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.141 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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