Detailed Weather Data for Project: OOLO

Date Time TAIR WSPD RELH SRAD 02Jan2018 8 a.m. 15.04 1.60 60.66 0.00 02Jan2018 9 a.m. 15.64 0.60 58.84 13.30 02Jan2018 10 a.m. 16.25 0.50 58.64 53.50 02Jan2018 11 a.m. 17.47 0.70 55.54 149.90 02Jan2018 12 p.m. 18.37 1.50 54.19 184.30 02Jan2018 1 p.m. 19.80 0.60 52.58 195.10 02Jan2018 2 p.m. 20.93 0.80 49.35 173.60 02Jan2018 3 p.m. 21.88 2.30 44.98 227.60 02Jan2018 4 p.m. 23.99 2.60 40.40 262.30 02Jan2018 5 p.m. 23.58 2.70 40.16 46.40 02Jan2018 6 p.m. 23.00 1.40 42.06 0.10 02Jan2018 7 p.m. 31.69 4.90 43.73 0.00 02Jan2018 8 p.m. 20.97 2.50 46.36 0.00 02Jan2018 9 p.m. 19.49 2.80 51.51 0.00 02Jan2018 10 p.m. 18.23 3.30 57.53 0.00 02Jan2018 11 p.m. 17.71 3.00 59.09 0.00 03Jan2018 12 a.m. 17.04 3.10 59.43 0.00 03Jan2018 1 a.m. 16.66 3.10 59.53 0.00 03Jan2018 2 a.m. 17.20 4.70 56.24 0.00 03Jan2018 3 a.m. 16.63 3.00 57.67 0.00 03Jan2018 4 a.m. 16.86 4.60 54.26 0.00 03Jan2018 5 a.m. 16.59 3.70 55.95 0.00 03Jan2018 6 a.m. 16.39 3.00 58.99 0.00 03Jan2018 7 a.m. 15.49 3.00 63.45 0.00 Accuml. Values 456.92 60.00 1281.14 1306.10 Num. Valid Values 24 24 24 24 Avg. Values 19.04 2.50 53.38 54.42 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 96.54 53.38 112.30 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.4662 definition: xcompl = 1 - (RELH_avg/100) TdC = -15.0909 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 = 0.2957 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.7043 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.1259 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 = 1.6785 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 1.1041 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.029 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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