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Some of the important FLEXTRA parameters cannot be specified at run time but are hard-coded in the source. The FLEXTRA installation at ECMWF uses the following set of hard-coded parameters:
| Description | Value | Parameter in source | Source file |
|---|---|---|---|
| Maximum number of grid points in E-W (input grid) | 721 | nxmax | par_mod.f90 |
| Maximum number of grid points in N-S (input grid) | 361 | nymax | par_mod.f90 |
| Maximum number of model levels (input grid) | 138 | par_mod.f90 | |
| Maximum number of species | 6 | maxspec | par_mod.f90 |
| Maximum number of particles | 2000000 | maxpart | par_mod.f90 |
| Maximum number of age classes | 10 | maxageclass | par_mod.f90 |
| Maximum number of receptor sites | 200 | maxreceptors | par_mod.f90 |
| Maximum number of output grid nests | 0 | maxnests | par_mod.f90 |
Compilation
compiler: gfortran
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Necessary code modifications
To make FLEXTRA work at with ECMWF data in the desired way the following modifications had to be were made in the source code:
Make FLEXTRA work for 137 model levels
In includepar modify line 38:
and also modify line 83 in gridcheck.f.
Increase file name buffer length
In includecom modify line 264:
Fix bug when a limited area domain is incorrectly detected as global
In gridcheck.f add this code to line 276:
