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chart datum

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  • SKN-Fläche Nordsee 2026 is a surface representation of chart datum and is a resource for reductions of depths from hydrographic survey data and for the production of nautical charts. The data set covers the sea area, including mudflats and estuaries, where chart datum (SKN) is approximately the local lowest astronomical tide (LAT). The chart datum in the tidally influenced rivers is defined separately. The reference surface is based on chart datum definitions at tide gauge locations as defined for the year 2026.

  • The chart datum for the German Bight 2015 is a surface representation of chart datum. It is a resource for reductions of depths from hydrographic survey data and for the production of nautical charts. This model was replaced by chart datum for the German Bight 2021

  • SKN-Fläche Nordsee 2026 is a surface representation of chart datum and is a resource for reductions of depths from hydrographic survey data and for the production of nautical charts. The data set covers the sea area, including mudflats and estuaries, where chart datum (SKN) is approximately the local lowest astronomical tide (LAT). The chart datum in the tidally influenced rivers is defined separately. The reference surface is based on chart datum definitions at tide gauge locations as defined for the year 2026.

  • The chart datum for the German Bight 2021 is a surface representation of chart datum. It is a resource for reductions of depths from hydrographic survey data and for the production of nautical charts. This dataset is based on the Chart datum for the German Bight 2021, with the "German Combined Quasi Geoid 2016 (GCG2016)" subsequently added to the difference values to transfer the elevation reference to the reference ellipsoid GRS80.

  • The chart datum for the German Bight 2021 is a surface representation of chart datum. It is a resource for reductions of depths from hydrographic survey data and for the production of nautical charts. This model was replaced by chart datum for the German Bight 2021 (ellipsoid).

  • The chart datum for the German Bight 2021 is a surface representation of chart datum. It is a resource for reductions of depths from hydrographic survey data and for the production of nautical charts. For more information, please visit: https://gdi.bsh.de/en/data/Chart-datum-for-the-German-Bight-2021_Kurzinformation_Factsheet.pdf