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Opstal, Willem van (author), Meijers, B.M. (author), Peters, R.Y. (author)Navigational charts play a vital role in a ship's safety while navigating the seas, rivers or lakes. With most of the features and obstructions being out of sight -below sea-level - these charts are more critical than e.g. topographic maps. For routing but also positioning, depth information is a key aspect on these charts. This depth...conference paper 2020