[ncl-talk] Comparison of vertical profiles of variables defined at different pressure levels.

[Bidyut Bikash Goswami]

Dear All,

I want to compare the vertical profiles of my model simulated variable with
observations. But *my model variables are defined over the following
pressure levels,*

Variable: p
Type: float
Total Size: 120 bytes
            30 values
Number of Dimensions: 1
Dimensions and sizes: [lev | 30]
Coordinates:
            lev: [3.643466..992.5561]
Number Of Attributes: 2
  long_name : Pressure [mb]
  units : mb
(0) 3.643466
(1) 7.59482
(2) 14.35663
(3) 24.61222
(4) 38.2683
(5) 54.59548
(6) 72.01245
(7) 87.82123
(8) 103.3171
(9) 121.5472
(10) 142.994
(11) 168.2251
(12) 197.9081
(13) 232.8286
(14) 273.9108
(15) 322.2419
(16) 379.1009
(17) 445.9926
(18) 524.6872
(19) 609.7787
(20) 691.3894
(21) 763.4045
(22) 820.8584
(23) 859.5348
(24) 887.0203
(25) 912.6445
(26) 936.1984
(27) 957.4855
(28) 976.3254
(29) 992.5561

*And I have observations defined over:*
Variable: po
Type: float
Total Size: 72 bytes
            18 values
Number of Dimensions: 1
Dimensions and sizes: [18]
Coordinates:
Number Of Attributes: 2
  long_name : Pressure [mb]
  units : mb
(0) 115
(1) 165
(2) 215
(3) 265
(4) 315
(5) 365
(6) 415
(7) 465
(8) 515
(9) 565
(10) 615
(11) 665
(12) 715
(13) 765
(14) 815
(15) 865
(16) 915
(17) 965

What is the best way of extrapolating the observations to the same vertical
levels as the model levels?

Regards,
Bidyut
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