Detailed Weather Data for Project: FSUP

Date Time TAIR WSPD RELH SRAD 07Mar2018 8 a.m. 21.58 10.00 45.42 87.20 07Mar2018 9 a.m. 27.00 11.10 38.68 284.20 07Mar2018 10 a.m. 33.12 9.20 31.82 546.10 07Mar2018 11 a.m. 37.71 7.50 25.85 739.30 07Mar2018 12 p.m. 41.29 5.30 22.54 875.50 07Mar2018 1 p.m. 44.67 3.90 20.64 938.60 07Mar2018 2 p.m. 47.35 4.30 20.77 923.70 07Mar2018 3 p.m. 50.61 6.40 18.25 830.00 07Mar2018 4 p.m. 53.17 7.00 16.80 666.90 07Mar2018 5 p.m. 55.29 6.20 15.62 452.00 07Mar2018 6 p.m. 55.67 5.50 14.77 194.40 07Mar2018 7 p.m. 60.76 12.90 29.24 10.00 07Mar2018 8 p.m. 46.44 3.10 21.68 0.00 07Mar2018 9 p.m. 42.73 6.50 24.86 0.00 07Mar2018 10 p.m. 42.87 9.70 32.98 0.00 07Mar2018 11 p.m. 41.74 9.40 37.36 0.00 08Mar2018 12 a.m. 40.30 4.40 40.08 0.00 08Mar2018 1 a.m. 37.49 3.90 46.89 0.00 08Mar2018 2 a.m. 34.03 4.10 55.19 0.00 08Mar2018 3 a.m. 30.13 2.50 47.17 0.00 08Mar2018 4 a.m. 28.11 2.70 46.77 0.00 08Mar2018 5 a.m. 26.91 2.70 47.57 0.00 08Mar2018 6 a.m. 26.42 1.30 53.36 0.00 08Mar2018 7 a.m. 26.20 1.20 66.00 0.00 Accuml. Values 951.58 140.80 820.31 6547.90 Num. Valid Values 24 24 24 24 Avg. Values 39.65 5.87 34.18 272.83 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 4.25 226.55 34.18 562.99 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.6582 definition: xcompl = 1 - (RELH_avg/100) TdC = -10.3096 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 = 0.4691 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5309 definition: del_lambda2 = 1 - del_lambda1 Qn = 5.2050 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 = 5.5146 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 4.8389 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.197 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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