Detailed Weather Data for Project: PINE

Date Time TAIR WSPD RELH SRAD 02Jan2018 8 a.m. 14.47 2.80 64.72 5.50 02Jan2018 9 a.m. 16.07 3.40 56.16 97.60 02Jan2018 10 a.m. 18.68 5.10 46.62 206.50 02Jan2018 11 a.m. 20.73 4.50 37.34 229.10 02Jan2018 12 p.m. 22.46 3.70 31.67 233.10 02Jan2018 1 p.m. 23.72 4.60 34.53 214.20 02Jan2018 2 p.m. 24.93 2.20 34.54 123.20 02Jan2018 3 p.m. 25.36 3.70 34.89 78.70 02Jan2018 4 p.m. 25.72 3.40 34.08 39.20 02Jan2018 5 p.m. 25.90 3.50 34.31 6.20 02Jan2018 6 p.m. 26.04 5.90 34.58 0.00 02Jan2018 7 p.m. 36.00 6.90 45.01 0.00 02Jan2018 8 p.m. 25.86 6.40 38.62 0.00 02Jan2018 9 p.m. 25.68 5.90 40.30 0.00 02Jan2018 10 p.m. 24.49 3.90 41.85 0.00 02Jan2018 11 p.m. 23.20 2.80 44.24 0.00 03Jan2018 12 a.m. 23.16 3.40 46.45 0.00 03Jan2018 1 a.m. 23.04 3.80 46.73 0.00 03Jan2018 2 a.m. 21.34 3.20 49.52 0.00 03Jan2018 3 a.m. 19.92 3.90 56.65 0.00 03Jan2018 4 a.m. 18.93 2.40 60.06 0.00 03Jan2018 5 a.m. 18.30 2.60 62.72 0.00 03Jan2018 6 a.m. 17.83 3.50 64.78 0.00 03Jan2018 7 a.m. 17.38 2.30 68.15 0.00 Accuml. Values 539.22 93.80 1108.52 1233.30 Num. Valid Values 24 24 24 24 Avg. Values 22.47 3.91 46.19 51.39 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values -5.30 150.92 46.19 106.04 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.5381 definition: xcompl = 1 - (RELH_avg/100) TdC = -15.1312 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 = 0.3234 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.6766 definition: del_lambda2 = 1 - del_lambda1 Qn = -0.1600 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 = 2.2485 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 1.7498 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.045 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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