: These ZIP files are primarily used in Electronic Chart Display and Information Systems (ECDIS) or specialized GIS (Geographic Information System) software. They contain high-resolution bathymetric data used to generate safety contours and depth information for maritime navigation. Key File Components :
Specialized GIS software (e.g., QGIS with plugins) or Marine Chart Plotters. Download KDS HAC TNK zip
: Often associated with high-density bathymetric data layers. : These ZIP files are primarily used in
Official National Hydrographic Portals or ECDIS Manufacturers. Compressed ZIP file containing .HAC and .TNK extensions. Application Download KDS HAC TNK zip