To get an impression of ERGOM, its tracers and processes, you may want to download a 1-d MATLAB model which is ready to run (just run run.m).
However, if you plan to use ERGOM, we do not suggest that you download finished code. Please download the Code Generation Tool and try to create your own code from the formal description and a code template.
MATLAB 1-dimensional model IOW 1.0 with ERGOM IOW Baltic 1.0
Here you can download a finished MATLAB model. Please see "Getting started" from section 2.4 on to find out how you run it.