Detailed Weather Data for Project: TORO

Date Time TAIR WSPD RELH SRAD 06Mar2018 8 a.m. 41.77 9.10 29.99 131.60 06Mar2018 9 a.m. 44.29 11.00 28.06 365.00 06Mar2018 10 a.m. 46.69 14.70 25.08 547.10 06Mar2018 11 a.m. 47.07 14.30 26.11 571.80 06Mar2018 12 p.m. 45.46 11.40 36.46 686.50 06Mar2018 1 p.m. 44.58 13.60 36.76 420.10 06Mar2018 2 p.m. 42.44 12.20 47.49 458.80 06Mar2018 3 p.m. 39.90 12.10 53.68 389.40 06Mar2018 4 p.m. 39.33 12.10 51.11 391.30 06Mar2018 5 p.m. 38.93 11.80 47.98 171.10 06Mar2018 6 p.m. 39.15 10.30 45.18 83.60 06Mar2018 7 p.m. 46.94 3.50 25.74 0.00 06Mar2018 8 p.m. 36.32 8.40 51.72 0.00 06Mar2018 9 p.m. 36.50 7.30 54.86 0.00 06Mar2018 10 p.m. 36.45 2.60 58.23 0.00 06Mar2018 11 p.m. 35.82 3.40 59.56 0.00 07Mar2018 12 a.m. 34.54 3.10 61.61 0.00 07Mar2018 1 a.m. 33.64 4.70 63.91 0.00 07Mar2018 2 a.m. 33.60 3.00 64.38 0.00 07Mar2018 3 a.m. 33.30 2.90 64.24 0.00 07Mar2018 4 a.m. 33.13 3.10 64.33 0.00 07Mar2018 5 a.m. 31.51 4.90 63.46 0.00 07Mar2018 6 a.m. 28.44 4.60 68.00 0.00 07Mar2018 7 a.m. 26.04 4.50 73.86 1.00 Accuml. Values 915.83 188.60 1201.80 4217.30 Num. Valid Values 24 24 24 24 Avg. Values 38.16 7.86 50.07 175.72 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 3.42 303.46 50.07 362.60 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.4993 definition: xcompl = 1 - (RELH_avg/100) TdC = -6.0385 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 = 0.4563 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5437 definition: del_lambda2 = 1 - del_lambda1 Qn = 2.6600 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 = 3.9340 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 4.3392 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.141 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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