EntityQ956736· pop 11· linked from 185 articleschart datumSign in to savelevel of water that charted depths displayed on a nautical chart are measured fromConnectionstideEntitygeodetic reference systemEntityAustraliaCountryMoonConceptBaltic SeaEntitysea levelEntitycoordinate systemEntitysubtropicsEntityBanda SeaEntitydeclinationEntityglobal navigation satellite systemEntityaverageEntityNational Oceanic and Atmospheric AdministrationEntitycoordinate originEntitynautical chartEntityLunar nodeEntitywater levelEntitygeopotentialEntityamphidromic pointEntityGRS 80EntityCategoriesCartographyNautical chartsTide tablesVertical datums