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- Grid_north abstract "Grid north is a navigational term referring to the direction northwards along the grid lines of a map projection. It is contrasted with true north (the direction of the North Pole) and magnetic north (the direction in which a compass needle points). Many topographic maps, including those of the United States Geological Survey and Great Britain's Ordnance Survey, indicate the difference between grid north, true north, and magnetic north.The grid lines on Ordnance Survey maps divide the UK into one-kilometre squares, east of an imaginary zero point in the Atlantic Ocean, west of Cornwall. The grid lines point to a Grid North, varying slightly from True North. This variation is smallest along the central meridian (north-south line) of the map, and greatest at the map edges. The difference between grid north and true north is very small and can be ignored for most navigation purposes. The difference exists because the correspondence between a flat map and the round Earth is necessarily imperfect.At the South Pole, grid north conventionally points northwards along the Prime Meridian. Since the meridians converge at the poles, true east and west directions change rapidly in a condition similar to gimbal lock. Grid north solves this problem.".
- Grid_north wikiPageID "1064904".
- Grid_north wikiPageLength "1555".
- Grid_north wikiPageOutDegree "14".
- Grid_north wikiPageRevisionID "634863113".
- Grid_north wikiPageWikiLink Category:Cartography.
- Grid_north wikiPageWikiLink Category:Navigation.
- Grid_north wikiPageWikiLink Category:Orientation_(geometry).
- Grid_north wikiPageWikiLink Gimbal_lock.
- Grid_north wikiPageWikiLink Magnetic_declination.
- Grid_north wikiPageWikiLink Magnetic_north.
- Grid_north wikiPageWikiLink Map_projection.
- Grid_north wikiPageWikiLink Navigation.
- Grid_north wikiPageWikiLink North_Pole.
- Grid_north wikiPageWikiLink Ordnance_Survey.
- Grid_north wikiPageWikiLink Prime_Meridian.
- Grid_north wikiPageWikiLink Prime_meridian.
- Grid_north wikiPageWikiLink South_Pole.
- Grid_north wikiPageWikiLink Topographic_map.
- Grid_north wikiPageWikiLink True_north.
- Grid_north wikiPageWikiLink United_States_Geological_Survey.
- Grid_north wikiPageWikiLinkText "Grid north".
- Grid_north wikiPageWikiLinkText "grid bearing".
- Grid_north wikiPageWikiLinkText "grid north".
- Grid_north hasPhotoCollection Grid_north.
- Grid_north wikiPageUsesTemplate Template:Geo-term-stub.
- Grid_north subject Category:Cartography.
- Grid_north subject Category:Navigation.
- Grid_north subject Category:Orientation_(geometry).
- Grid_north hypernym Term.
- Grid_north type Infographic.
- Grid_north type Science.
- Grid_north comment "Grid north is a navigational term referring to the direction northwards along the grid lines of a map projection. It is contrasted with true north (the direction of the North Pole) and magnetic north (the direction in which a compass needle points).".
- Grid_north label "Grid north".
- Grid_north sameAs Gitternord.
- Grid_north sameAs Karttapohjoinen.
- Grid_north sameAs m.042x6t.
- Grid_north sameAs Q838404.
- Grid_north sameAs Q838404.
- Grid_north sameAs 方格北.
- Grid_north wasDerivedFrom Grid_north?oldid=634863113.
- Grid_north isPrimaryTopicOf Grid_north.