LAKEMAKER - A GENERAL OBJECT-ORIENTED SOFTWARE TOOL FOR MODELING THE EUTROPHICATION PROCESS IN LAKES

A proposition for an integrated modelling tool and simulation environm ent is presented. The aim of this tool is to help modelling the eutrop hication processes in shallow lakes. The system architecture is divide d into three main modules plus one that handles the communication betw een them and the user. The modules are: the Domain Base, which involve s a structural description of all components and processes that make c omponents interact; the Model Base, which contains the equations relat ed to the components (dynamic models) and to the processes (static mod els); and the Database into which input and output data are stored and can be accessed. The program was implemented on a personal computer w ith MS-DOS(R) operating system.