Adapting and using of the Topographic Objects Datebase for development of Hydrographic Map of Poland at 1:10 000 scale
Abstract
This paper is a result of a series of experiments within the project “Development of the Hydrographic Map of Poland at 1:10 000 scale”. For the first time, available spatial data from the resources of CODGiK were used for updating the Hydrographic Map of Poland such as Digital Elevation Model (NMT), Topographic Objects Database, orthophotomap and topographic map at 1:10 000 scale. To use the national resources for development of hydrographic map the input data had to be prepared. This paper describes attribute and geometric adaptation of data from the Topographic Objects Database. Described modifications give cartographic data typical features of hydrographic data. Recommendations in the conclusion may be also considered as complement to the technical guidelines for production works of Topographic Objects Database.
Keywords:
hydrographic map; elementary basin; hydrographic codes; watershed lines; river segments; hydrographic nodes
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