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How was the database created?

April 26, 2017database

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How was the database created?

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OS PANORAMA data for the whole country were processed to extract water features only. These were then transformed into polygons to form the basis for the inventory. The water body polygons were then used in a GIS with other layers of geographic data to generate the data in the database. For larger water bodies (> 1ha, 100m x 100m), catchment polygons were also generated and these were used in the GIS to obtain catchment-related data.