Integrated Geospatial Information on Canadian Urbanization and Potential Applications in Urban Environment Studies Ying Zhang and Bert Guindon Canada Centre for Remote Sensing Earth Sciences Sector, Natural Resources Canada 588 Booth Street, Ottawa Canada has undergone rapid urbanization over the past 40 years and now has about 80% of its population living in urbanized areas. To address urban sustainability issues such as energy consumption, land conversion and related human and eco-health from a federal perspective, integrated, national-level information on urban land use / land cover (LCLU) characterization and urban growth is needed. Over the past 3 years a national urban database, the Canadian Urban Land Use Survey (CUrLUS), has been created at the Canada Centre for Remote Sensing. The foundation of CUrLUS is LCLU information derived from Landsat Thematic Mapper images, however it also incorporates other layers drawn both from federal sources including the census, historic land use change AND topography as well as high resolution EO image data. This presentation will begin with a description of the content and integration challenges faced in the development of CUrLUS. The initial use of the database has been directed at the assessment of impacts of urban form on energy use. Example results from previous studies related to transportation activity will be presented as well as current investigations in the characterization of urban heat islands and their impacts on energy demand for building cooling. CUrLUS has significant potential to address broad spectrum of urban issues. The presentation will conclude with proposals for its employment in range of environmental applications including characterization of the influence on the urban atmosphere, associated with land cover & land use, human activities and urban growth.