Determination of recent land cover / land use and changes thereof are key elements for an improved understanding of the processes and trends in landscape development. Spatial planning authorities and administrations call for a regular and comparable accounting and reporting framework in order to get a consistent and traceable picture of what is happing, where is it happening and in which intensity is it happening. Land cover / use change accounting is normally performed within 5 to 10 year intervals. Urban growth models allow projection of scenarios of up to 10 years into the future.
