Detailed Weather Data for Project: NEWT

Date Time TAIR WSPD RELH SRAD 08Nov2017 8 a.m. 42.44 6.70 76.62 7.90 08Nov2017 9 a.m. 42.26 7.40 75.28 60.70 08Nov2017 10 a.m. 43.25 7.60 70.81 133.90 08Nov2017 11 a.m. 45.66 7.20 65.64 366.30 08Nov2017 12 p.m. 47.98 6.90 61.20 334.60 08Nov2017 1 p.m. 50.09 6.10 57.58 419.40 08Nov2017 2 p.m. 52.30 6.10 52.74 552.80 08Nov2017 3 p.m. 54.43 4.40 46.24 456.40 08Nov2017 4 p.m. 55.53 3.90 44.66 297.20 08Nov2017 5 p.m. 54.90 3.30 46.28 118.30 08Nov2017 6 p.m. 50.95 1.60 56.47 2.00 08Nov2017 7 p.m. 49.68 0.70 71.40 0.00 08Nov2017 8 p.m. 42.96 1.50 82.73 0.00 08Nov2017 9 p.m. 40.53 0.70 88.60 0.00 08Nov2017 10 p.m. 40.98 2.40 84.55 0.00 08Nov2017 11 p.m. 39.51 0.20 87.81 0.00 09Nov2017 12 a.m. 36.95 0.60 93.48 0.00 09Nov2017 1 a.m. 35.28 1.60 95.82 0.00 09Nov2017 2 a.m. 34.43 1.20 95.98 0.00 09Nov2017 3 a.m. 34.20 0.70 95.21 0.00 09Nov2017 4 a.m. 32.97 1.10 96.96 0.00 09Nov2017 5 a.m. 32.32 0.90 97.31 0.00 09Nov2017 6 a.m. 32.52 1.20 97.17 0.00 09Nov2017 7 a.m. 31.28 0.90 98.01 0.00 Accuml. Values 1023.40 74.90 1838.55 2749.50 Num. Valid Values 24 24 24 24 Avg. Values 42.64 3.12 76.61 114.56 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 5.91 120.51 76.61 236.40 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.2339 definition: xcompl = 1 - (RELH_avg/100) TdC = 2.1405 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 = 0.4944 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5056 definition: del_lambda2 = 1 - del_lambda1 Qn = 1.3511 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 = 2.1725 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 1.5231 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.057 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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