Detailed Weather Data for Project: OOLO

Date Time TAIR WSPD RELH SRAD 01Jan2018 8 a.m. 2.41 7.50 71.10 1.90 01Jan2018 9 a.m. 2.28 8.60 70.23 31.70 01Jan2018 10 a.m. 3.90 8.30 65.88 132.90 01Jan2018 11 a.m. 6.33 6.90 63.91 390.30 01Jan2018 12 p.m. 8.35 5.70 61.93 429.90 01Jan2018 1 p.m. 9.34 4.30 58.03 31.00 01Jan2018 2 p.m. 11.35 3.90 52.80 47.40 01Jan2018 3 p.m. 13.42 4.50 48.62 286.30 01Jan2018 4 p.m. 15.08 4.40 45.76 268.20 01Jan2018 5 p.m. 15.98 5.00 43.86 70.00 01Jan2018 6 p.m. 15.48 6.00 44.28 0.10 01Jan2018 7 p.m. 21.92 2.40 45.38 0.00 01Jan2018 8 p.m. 15.26 7.30 47.46 0.00 01Jan2018 9 p.m. 15.21 9.70 47.09 0.00 01Jan2018 10 p.m. 15.15 10.80 48.66 0.00 01Jan2018 11 p.m. 15.17 7.10 51.02 0.00 02Jan2018 12 a.m. 15.17 7.20 52.64 0.00 02Jan2018 1 a.m. 15.42 4.90 55.02 0.00 02Jan2018 2 a.m. 15.17 5.90 55.75 0.00 02Jan2018 3 a.m. 14.92 5.30 56.71 0.00 02Jan2018 4 a.m. 14.70 5.20 58.29 0.00 02Jan2018 5 a.m. 14.29 5.70 58.82 0.00 02Jan2018 6 a.m. 14.22 5.10 60.21 0.00 02Jan2018 7 a.m. 14.61 2.70 60.27 0.00 Accuml. Values 305.13 144.40 1323.72 1689.70 Num. Valid Values 24 24 24 24 Avg. Values 12.71 6.02 55.15 70.40 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values -10.71 232.34 55.15 145.28 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.4485 definition: xcompl = 1 - (RELH_avg/100) TdC = -17.9781 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 = 0.2474 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.7526 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.1140 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 = 1.2241 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 1.3068 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.040 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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