Detailed Weather Data for Project: PINE

Date Time TAIR WSPD RELH SRAD 05Nov2017 8 a.m. 71.24 9.20 89.33 2.80 05Nov2017 9 a.m. 72.16 8.00 87.36 23.50 05Nov2017 10 a.m. 73.62 8.00 83.93 123.10 05Nov2017 11 a.m. 75.54 10.20 78.52 210.00 05Nov2017 12 p.m. 78.04 12.20 71.76 362.80 05Nov2017 1 p.m. 80.33 12.40 66.27 447.10 05Nov2017 2 p.m. 82.26 12.70 61.47 436.50 05Nov2017 3 p.m. 83.75 11.40 58.13 354.40 05Nov2017 4 p.m. 84.99 10.80 55.27 328.40 05Nov2017 5 p.m. 84.06 7.60 57.84 118.60 05Nov2017 6 p.m. 81.10 7.10 64.93 2.00 05Nov2017 7 p.m. 60.98 4.20 85.80 0.00 05Nov2017 8 p.m. 77.27 6.60 74.67 0.00 05Nov2017 9 p.m. 76.33 1.60 77.72 0.00 05Nov2017 10 p.m. 72.05 6.50 62.87 0.00 05Nov2017 11 p.m. 69.51 5.60 61.28 0.00 06Nov2017 12 a.m. 66.76 5.20 68.59 0.00 06Nov2017 1 a.m. 64.26 3.00 73.76 0.00 06Nov2017 2 a.m. 62.10 4.80 78.13 0.00 06Nov2017 3 a.m. 61.56 3.00 81.01 0.00 06Nov2017 4 a.m. 60.48 1.20 85.75 0.00 06Nov2017 5 a.m. 59.97 1.60 90.32 0.00 06Nov2017 6 a.m. 60.37 2.50 89.58 0.00 06Nov2017 7 a.m. 61.50 2.90 90.14 0.00 Accuml. Values 1720.22 158.30 1794.43 2409.20 Num. Valid Values 24 24 24 24 Avg. Values 71.68 6.60 74.77 100.38 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 22.04 254.70 74.77 207.14 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.2523 definition: xcompl = 1 - (RELH_avg/100) TdC = 17.4364 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 = 0.7098 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.2902 definition: del_lambda2 = 1 - del_lambda1 Qn = 1.6767 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 = 6.5819 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 6.0827 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.116 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

Go to Tulsa District Water Control Home Page.