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New opportunities for altimetry in hydrology

Das Projekt "New opportunities for altimetry in hydrology" wird vom Umweltbundesamt gefördert und von Bundesanstalt für Gewässerkunde durchgeführt. General Information: The objective of N.O.A.H. is to demonstrate that the use of Earth Observation (EO) data provides a significant improvement in the field of hydrology and hydraulics, and particularly for flood prevention. Earth observation techniques enable us to measure terrain relief from space. These techniques include interferometry, which is based on ERS SAR data, and optical stereoscopy, which uses SPOT imagery. Data obtained through such processing techniques give access to precise and comprehensive information on the terrain characteristics, on a regional level (5 to 10 meters precision): relief, catchment basins, and slopes. Earth observation also provides adequate information on land use. EO data and derived high-level product information will be integrated into hydrological and hydraulic models over a pilot area (The Moselle Basin) to better understand the issues involved in the management of land use with respect to the risk of flooding, and to better serve user needs in this domain. The first year of the project will be devoted to the collection and the analysis of user requirements, the generation of suitable high-level products derived from EO data, and the development of tools to integrate this data into hydrological and hydraulic models. The second year will involve the implementation of the models with the full integration of the EO data gathered, the generation of the flood-related outputs (e.g. risk maps), and a final assessment of the results from a commercial, technical and scientific viewpoint. Finally, N.O.A.H. will include communication activities in interaction with the CEO services, to develop awareness of the contribution of EO data in the domain of flood prevention. The N.O.A.H. project responds to an urgent need in Europe concerning the prevention of flood events which cause considerable damage every year. From a scientific and operational point of view, N.O.A.H. represents a new tool for hydrological studies and a focal point for European hydrology institutes. From a technological and industrial point of view, N.O.A.H. valorizes the ERSl/ERS2 tandem mission as well as the SPOT programme, and the production of DEMs. Thus, it provides a good leverage for the development of the use of EO data in such important application domains. The proposal for N.O.A.H. is presesnted by a team lead by Cemagref, and consisting of other major hydrology institutes (Delft Hydraulics, BfG), major EO data providers (Spot Image, ISTAR) as well as scientific and technical entities which will act as interfaces to operational end-user communities (ICHR, EGERIE). Prime Contractor: Centre National du Machinisme Agricole, du Genie Rural, des Eaux et des Forets; Lyon; France.

Automated procedures for integration of image and map data for change detection

Das Projekt "Automated procedures for integration of image and map data for change detection" wird vom Umweltbundesamt gefördert und von Universität Stuttgart, Institut für Photogrammetrie durchgeführt. General Information/Requirement: This proposal is in response to a call for proposals in the European Community Environment and Climate programme which specifies a need in Theme 3 (Space techniques applied to environmental monitoring and research), Area 3.1.1 (methodological research), for the development of generic tools and techniques for automated pre-processing, interpretation and integration of remotely sensed and ground data. This proposal directly responds to the requirement for more accurate, robust and automated procedures for geometric correction, techniques for image segmentation and feature extraction and integration of Earth observation data in GIS. Objectives. The primary objective is to develop a software which will automatically register images to maps, or other reference systems, and detect change which has taken place between the time of compilation of the map and images at various subsequent times. The system will handle all types of optical and microwave image data from high resolution optical data to medium resolution data such as Thematic Mapper and ERS data. Such a system will greatly facilitate the use of data from earth observation and speed up the operations of environmental monitoring and the detection of change due to long term or short term processes. The secondary objectives are to bring together a transnational team of scientists and users which will cover a wide range of European cultures and to make use of these skills for the benefit of application scientists and users throughout the Community. The consortium The consortium includes universities from UK, Germany, Sweden and Portugal; an international government sponsored production agency from Spain and a commercial company from UK. The project would make use of the following skills and experience: - combined complementary research and development skills and experience of all the partners; - the experience and success of EOS in designing and implementing systems for handling data from EO sensors; - the experience of WEU in using data from different sensors for monitoring; - experience running and managing previous projects of this type. Outline: This proposal first sets out the background to the requirement for automated registration of images and maps and for change detection and then examines the work done and the base from which to start such a project. Detailed proposals for the system are presented with a breakdown of tasks into work packages and details of organization and management procedures. The proposal is analysed in terms of strengths and weaknesses and the risks assessed and a minimum system for success is specified. The benefits to the community are set out and details of the consortia and the personnel involved given. Prime Contractor: University College London, Department of Photogrammetry and Surveying; London; United Kingdom.

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