The following is the list of a(n) and b(n) coefficients defining the model levels, accompanied by the corresponding half-level, ph, and full-level, pf, values of pressure for a surface pressure of 1013.250 hPa. Also provided are the Geopotential and Geometric heights, the temperature and density of the level based on the 1976 version of the International Civil Aviation Organization (ICAO) Standard Atmosphere as described at:

For a description of how model levels should be interpreted see IFS Documentation Part III - Chapter 2, Section 2.2.1.

na [Pa]bph [hPa]pf [hPa]Geopotential Altitude [m]Geometric Altitude [m]Temperature [K]Density [kg/m^3]
00.0000000.0000000.000000-----
120.0061490.0000000.20010.100064945.2265614.30231.600.000150
243.2978100.0000000.43300.316556755.3257265.62254.540.000433
375.3462300.0000000.75350.593251952.3152379.57267.980.000771
4115.0821460.0000001.15080.952148208.6348576.32270.650.001226
5161.8974910.0000001.61901.384945256.6945580.57265.770.001815
6215.8969120.0000002.15901.889042872.3143162.86259.090.002540
7278.0057980.0000002.78012.469540862.0041125.85253.460.003394
8350.1381840.0000003.50143.140739095.6139337.07248.520.004403
9435.5622860.0000004.35563.928537482.3437704.24244.000.005609
10539.6514890.0000005.39654.876135952.5936156.69239.720.007086
11668.6155400.0000006.68626.041334462.0734649.56235.540.008935
12828.3989870.0000008.28407.485132997.5033169.35231.440.011266
131026.3669430.00000010.26379.273831558.0031715.14228.210.014157
141271.6445310.00000012.716411.490130131.0230274.25226.780.017650
151575.5378420.00000015.755414.235928712.9728843.00225.360.022006
161952.0544430.00000019.520517.638027303.7927421.34223.950.027436
172418.5498050.00000024.185521.853025903.4126009.20222.550.034206
182996.5266110.00000029.965327.075424511.8024606.50221.160.042648
193712.6262210.00000037.126333.545823128.8823213.18219.780.053172
204599.8569340.00000045.998641.562421754.6221829.18218.400.066293
215699.1147460.00000056.991151.494920388.9420454.42217.040.082653
226998.3881840.00000069.983963.487519061.1119118.33216.650.102085
238507.4111330.00010085.175877.579817789.8117839.64216.650.124744
2410181.7070310.000673102.498793.837216583.2616626.55216.650.150885
2511883.0898440.003163122.0362112.267415446.0315483.59216.650.180520
2613442.9150390.009292143.8446132.940414374.1614406.68216.650.213761
2714736.3544920.020319167.9519155.898313363.9013392.00216.650.250676
2815689.2060550.036975194.3568181.154412411.7012435.94216.650.291287
2916266.6093750.059488222.9419208.649411515.5711536.43216.650.335497
3016465.0039060.087895253.7096238.325810670.8710688.77218.790.379468
3116297.6201170.122004286.5964270.15309858.429873.71224.070.420006
3215791.5976560.161442321.4966304.04659074.429087.37229.170.462189
3314985.2695310.205703358.2815339.88918318.898329.77234.080.505834
3413925.5195310.254189396.8118377.54677591.687600.74238.800.550756
3512665.2949220.306235436.9459416.87896892.366899.82243.350.596773
3611261.2304690.361145478.5425457.74426220.256226.34247.720.643717
379771.4062500.418202521.4575500.00005574.585579.46251.920.691426
388253.2109380.476688565.5364543.49694954.564958.41255.950.739742
396761.3398440.535887610.6005588.06844359.594362.58259.810.788493
405345.9179690.595084656.4283633.51443789.433791.69263.520.837482
414050.7187500.653565702.7315679.57993244.363246.01267.060.886460
422911.5703120.710594749.1255725.92852725.332726.50270.440.935106
431954.8046880.765405795.0949772.11022234.222235.00273.630.982992
441195.8906250.817167839.9534817.52411773.951774.44276.621.029552
45638.1484380.864956882.7980861.37571348.751349.04279.381.074046
46271.6250000.907716922.4593902.6287964.47964.62281.881.115511
4772.0625000.944213957.4447939.9520628.86628.92284.061.152716
480.0000000.972985985.8773971.6610352.11352.13285.861.184104
490.0000000.9922811005.4292995.6532147.52147.53287.191.207723
500.0000001.0000001013.25001009.339632.6032.60287.941.221149

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