Detailed Weather Data for Project: FCOB

Date Time TAIR WSPD RELH SRAD 05Mar2018 8 a.m. 46.62 6.88 54.25 79.75 05Mar2018 9 a.m. 49.04 12.38 46.67 202.67 05Mar2018 10 a.m. 52.02 15.60 37.75 531.00 05Mar2018 11 a.m. 55.28 17.82 26.00 714.00 05Mar2018 12 p.m. 57.15 20.64 17.00 797.25 05Mar2018 1 p.m. 59.36 17.08 13.67 855.67 05Mar2018 2 p.m. 60.71 13.81 12.25 792.50 05Mar2018 3 p.m. 61.88 11.80 11.50 765.25 05Mar2018 4 p.m. 62.10 12.41 10.25 587.75 05Mar2018 5 p.m. 61.82 10.74 9.67 392.33 05Mar2018 6 p.m. -901.00 -901.00 -901.00 -901.00 05Mar2018 7 p.m. 48.02 3.13 24.00 0.00 05Mar2018 8 p.m. 45.50 3.58 30.00 0.00 05Mar2018 9 p.m. 44.51 3.80 30.50 0.00 05Mar2018 10 p.m. 41.60 2.09 38.67 0.00 05Mar2018 11 p.m. 36.05 4.08 55.75 0.00 06Mar2018 12 a.m. 34.61 2.52 62.00 0.00 06Mar2018 1 a.m. 34.16 5.37 65.75 0.00 06Mar2018 2 a.m. 33.66 6.93 65.75 0.00 06Mar2018 3 a.m. 34.76 8.50 56.67 0.00 06Mar2018 4 a.m. 34.88 6.10 52.75 0.00 06Mar2018 5 a.m. 33.17 6.04 52.50 0.00 06Mar2018 6 a.m. 29.21 5.03 62.50 0.00 06Mar2018 7 a.m. 27.86 5.14 66.50 3.00 Accuml. Values 1043.97 201.47 902.35 5721.17 Num. Valid Values 23 23 23 23 Avg. Values 45.39 8.76 39.23 248.75 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 7.44 338.26 39.23 513.29 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.6077 definition: xcompl = 1 - (RELH_avg/100) TdC = -5.6636 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 = 0.5175 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4825 definition: del_lambda2 = 1 - del_lambda1 Qn = 4.8133 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 = 6.3426 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 7.1190 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.233 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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