DHI-GRAS is specialised in earth observation, satellite image processing and GIS analyses for assessment of natural resources, environmental impact assessment and very high resolution mapping. Water quality monitoring and mapping of land cover, urban areas, vegetation and coastal change has been carried out in most parts of the world and often in interdisciplinary project settings in close collaboration with engineers, botanists, coastal experts, anthropologists etc. Since 2000 GRAS has completed more than 150 projects in 50 countries worldwide. Most of these projects are related to environmental assessment and detection of changes based on time series of satellite images. Examples of the diversity of the scope of services include sea ice and vegetation mapping in Arctic areas, detailed mapping of urban environments in Europe, land cover and forest cover mapping in South America and mapping of water quality and turbidity in South East Asia.