Detailed Weather Data for Project: OOLO

Date Time TAIR WSPD RELH SRAD 07Mar2018 8 a.m. 29.21 6.20 72.14 88.20 07Mar2018 9 a.m. 31.91 7.40 65.36 313.40 07Mar2018 10 a.m. 34.11 9.60 58.65 486.30 07Mar2018 11 a.m. 36.23 9.50 53.49 666.30 07Mar2018 12 p.m. 38.88 9.10 48.40 787.40 07Mar2018 1 p.m. 42.17 9.60 42.52 827.20 07Mar2018 2 p.m. 45.57 9.10 37.66 712.80 07Mar2018 3 p.m. 48.81 10.30 29.28 687.50 07Mar2018 4 p.m. 50.27 11.20 23.21 426.00 07Mar2018 5 p.m. 50.97 9.30 21.29 293.50 07Mar2018 6 p.m. 51.26 8.30 20.55 125.20 07Mar2018 7 p.m. 54.34 2.90 29.82 3.70 07Mar2018 8 p.m. 47.03 3.80 25.72 0.00 07Mar2018 9 p.m. 46.18 3.50 26.60 0.00 07Mar2018 10 p.m. 44.02 0.70 30.37 0.00 07Mar2018 11 p.m. 42.13 1.00 33.90 0.00 08Mar2018 12 a.m. 39.78 0.50 53.63 0.00 08Mar2018 1 a.m. 40.82 2.40 49.30 0.00 08Mar2018 2 a.m. 39.06 2.90 39.24 0.00 08Mar2018 3 a.m. 36.32 3.00 45.45 0.00 08Mar2018 4 a.m. 36.54 5.70 41.15 0.00 08Mar2018 5 a.m. 34.97 7.10 44.54 0.00 08Mar2018 6 a.m. 34.79 4.50 51.13 0.00 08Mar2018 7 a.m. 35.69 5.40 60.18 0.40 Accuml. Values 991.06 143.00 1003.58 5417.90 Num. Valid Values 24 24 24 24 Avg. Values 41.29 5.96 41.82 225.75 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 5.16 230.09 41.82 465.83 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.5818 definition: xcompl = 1 - (RELH_avg/100) TdC = -6.8665 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 = 0.4831 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5169 definition: del_lambda2 = 1 - del_lambda1 Qn = 4.0186 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 = 5.1936 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 4.6339 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.171 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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