At ECMWF version 902 of FLEXPART is centrally installed on ecgb and on some internal Linux-based systems. On these systems Metview is configured to pick up the FLEXPART location automatically via these environment variables:
Some of the important FLEXPART parameters cannot be specified at run time but are hard-coded in the source. The FLEXPART 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 |
compiler: gfortran
compilation options:
-O3 -m64 -mcmodel=medium -fconvert=little-endian -frecord-marker=4 |
To make FLEXPART work at ECMWF the following modifications had to be made in the source code:
This involved the modification in err.f90 of line 106 and 111
and line 140 and 145 as well.
In par_mod.f90 line 125 had to be modified:
We changed the code to increase the maximum value of some parameters.
In par_mod.f90:
In par_mod.f90: