Definitiestudie voor de integratie LOV en RS

The Environment Explorer and the Land Use Scanner are both integrated land use models, used by the National Institute of Public Health and the Environment (RIVM). Considering efficiency, the RIVM is trying to integrate both systems while their specific qualities should remain. This integration will lead to a toolbox, called LUMOS (Land Use Modelling System). Under the authority of the RIVM, a definition study was conducted by Nexpri / Utrecht University, resulting in a global functional model for LUMOS. The Environment Explorer and the Land Use Scanner show many similarities regarding the use of input data, and the presentation of results. The most important differences lie in their allocation mechanisms. In the Land Use Scanner a logit model is used where as the Environment Explorer system uses cellular automata for the simulation of spatial processes. These mechanisms differ fundamentally and can not simply be interchanged. Another important difference between both systems is the way in which expert judgements are being made during the modeling process. The Global Functional Model (GFM) for LUMOS basically describes the way in which integration between the Environment Explorer and Land Use Scanner systems can take place. The basic assumption is that allocation mechanisms of the Land Use Scanner and Environment Explorer system in their present form must be maintained, because of their unique character. Integration is possible mainly for the input of data, and the post processing and output of the results. Besides, a common user interface and control tool must be developed. Based on the GFM for LUMOS a whole range of steps are possible. Therefore, the report lists the most important choices and corresponding arguments for every functional part of the toolbox. These choices are largely determined by the degree of integration which is aimed for and by the system environment in which the toolbox is going to function