Detailed Weather Data for Project: PINE

Date Time TAIR WSPD RELH SRAD 07Mar2018 8 a.m. 36.10 7.00 62.02 89.70 07Mar2018 9 a.m. 37.29 11.10 57.48 318.50 07Mar2018 10 a.m. 38.77 9.30 55.57 536.30 07Mar2018 11 a.m. 40.86 7.40 52.29 679.50 07Mar2018 12 p.m. 43.68 8.60 48.11 681.60 07Mar2018 1 p.m. 45.73 8.20 43.11 883.10 07Mar2018 2 p.m. 48.34 8.80 37.69 880.10 07Mar2018 3 p.m. 50.61 7.40 34.61 790.30 07Mar2018 4 p.m. 52.16 8.30 32.11 637.90 07Mar2018 5 p.m. 53.01 8.00 31.06 426.80 07Mar2018 6 p.m. 52.90 6.90 32.40 178.90 07Mar2018 7 p.m. 57.97 2.60 35.78 4.70 07Mar2018 8 p.m. 48.69 6.40 44.19 0.00 07Mar2018 9 p.m. 47.17 5.50 54.54 0.00 07Mar2018 10 p.m. 44.85 4.10 72.24 0.00 07Mar2018 11 p.m. 39.36 1.20 95.44 0.00 08Mar2018 12 a.m. 36.39 2.10 100.11 0.00 08Mar2018 1 a.m. 36.50 1.30 97.26 0.00 08Mar2018 2 a.m. 36.84 2.10 98.94 0.00 08Mar2018 3 a.m. 37.09 4.10 99.40 0.00 08Mar2018 4 a.m. 36.25 2.30 97.35 0.00 08Mar2018 5 a.m. 36.28 4.70 97.08 0.00 08Mar2018 6 a.m. 36.52 4.90 93.95 0.00 08Mar2018 7 a.m. 35.62 3.80 93.02 0.00 Accuml. Values 1029.00 136.10 1565.75 6107.40 Num. Valid Values 24 24 24 24 Avg. Values 42.88 5.67 65.24 254.47 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 6.04 218.98 65.24 525.11 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.3476 definition: xcompl = 1 - (RELH_avg/100) TdC = 0.0545 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 = 0.4964 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5036 definition: del_lambda2 = 1 - del_lambda1 Qn = 4.8544 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 = 3.2556 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 2.9812 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.154 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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