Detailed Weather Data for Project: NEWT

Date Time TAIR WSPD RELH SRAD 06Dec2017 8 a.m. 28.69 1.20 81.41 7.00 06Dec2017 9 a.m. 31.69 0.70 70.81 183.90 06Dec2017 10 a.m. 37.65 3.10 57.07 336.60 06Dec2017 11 a.m. 42.85 3.80 48.24 473.20 06Dec2017 12 p.m. 47.61 3.40 41.99 551.50 06Dec2017 1 p.m. 50.47 4.40 38.59 565.50 06Dec2017 2 p.m. 52.57 5.70 32.77 515.20 06Dec2017 3 p.m. 54.00 9.20 30.56 411.60 06Dec2017 4 p.m. 54.90 7.60 30.48 266.00 06Dec2017 5 p.m. 54.23 9.20 29.96 90.20 06Dec2017 6 p.m. 51.08 5.90 35.48 0.00 06Dec2017 7 p.m. 31.19 0.60 44.16 0.00 06Dec2017 8 p.m. 45.36 1.40 48.72 0.00 06Dec2017 9 p.m. 43.14 1.20 55.05 0.00 06Dec2017 10 p.m. 38.93 0.40 64.06 0.00 06Dec2017 11 p.m. 34.65 2.30 70.85 0.00 07Dec2017 12 a.m. 37.51 3.90 57.42 0.00 07Dec2017 1 a.m. 38.21 6.80 56.66 0.00 07Dec2017 2 a.m. 37.20 9.00 60.21 0.00 07Dec2017 3 a.m. 34.79 -901.00 65.98 -901.00 07Dec2017 4 a.m. -901.00 -901.00 -901.00 -901.00 07Dec2017 5 a.m. -901.00 -901.00 -901.00 -901.00 07Dec2017 6 a.m. -901.00 -901.00 -901.00 -901.00 07Dec2017 7 a.m. -901.00 -901.00 -901.00 -901.00 Accuml. Values 846.71 79.80 1020.47 3400.70 Num. Valid Values 20 19 20 19 Avg. Values 42.34 4.20 51.02 178.98 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 5.74 162.19 51.02 369.34 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.4898 definition: xcompl = 1 - (RELH_avg/100) TdC = -3.6310 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 = 0.4919 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.5081 definition: del_lambda2 = 1 - del_lambda1 Qn = 2.8679 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 = 4.5314 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 3.3654 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.123 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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