This paper considers the interpolation of historic data, collected using a single beam echo sounder, onto a regular grid. The use of conventional software provides a number of Interpolation methods, including the application of Triangular Lrregular Networks (TINs), Inverse Distance Weighting (IDW) and Kriging. These methods are however, found to produce artificial, Interpolation artefacts when applied to sounding data, Concentrated along lines which cross narrow, deep channels.
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