Coordinate Systems Archives - GIS Geography https://gisgeography.com/tag/coordinate-systems/ Geographic Information Systems Sat, 12 Apr 2025 11:23:09 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.3 https://gisgeography.com/wp-content/uploads/2019/01/cropped-GISGeography-SiteIcon-32x32.jpg Coordinate Systems Archives - GIS Geography https://gisgeography.com/tag/coordinate-systems/ 32 32 XYZ Coordinates – Latitude, Longitude, Elevation https://gisgeography.com/xyz-coordinates/ https://gisgeography.com/xyz-coordinates/#respond Wed, 20 Nov 2024 14:31:00 +0000 https://gisgeography.com/?p=90858 XYZ coordinates represent a point's location in three-dimensional space. X and Y are its position on the earth's surface. Z is elevation.

The post XYZ Coordinates – Latitude, Longitude, Elevation appeared first on GIS Geography.

]]> https://gisgeography.com/xyz-coordinates/feed/ 0 Easting and Northing Coordinates https://gisgeography.com/easting-northing-coordinates/ https://gisgeography.com/easting-northing-coordinates/#comments Wed, 06 Nov 2024 14:54:00 +0000 https://gisgeography.com/?p=90829 Northing and easting coordinates work together for positioning on maps. They create a grid system on maps, allowing us to pinpoint locations.

The post Easting and Northing Coordinates appeared first on GIS Geography.

]]> https://gisgeography.com/easting-northing-coordinates/feed/ 3 What Is the Web Mercator Projection? https://gisgeography.com/web-mercator-projection/ https://gisgeography.com/web-mercator-projection/#comments Sat, 12 Mar 2022 22:04:25 +0000 https://gisgeography.com/?p=66785 The Web Mercator projection uses a modified version of the Mercator projection and has become a default map projection for web mapping.

The post What Is the Web Mercator Projection? appeared first on GIS Geography.

]]> https://gisgeography.com/web-mercator-projection/feed/ 1 Where is the Central Meridian? https://gisgeography.com/central-meridian/ https://gisgeography.com/central-meridian/#respond Sun, 14 Apr 2019 09:54:59 +0000 https://gisgeography.com/?p=19004 The central meridian is the center line of longitude for projection systems. Projected coordinate systems often use it as a reference point for a x-origin.

The post Where is the Central Meridian? appeared first on GIS Geography.

]]> https://gisgeography.com/central-meridian/feed/ 0 Latitude, Longitude and Coordinate System Grids https://gisgeography.com/latitude-longitude-coordinates/ https://gisgeography.com/latitude-longitude-coordinates/#comments Mon, 12 Jun 2017 01:59:50 +0000 http://gisgeography.com/?p=10349 Latitude lines run east-west, are parallel and go from -90 to +90. Longitude lines run north-south, converge at the poles and are from -180 to +180.

The post Latitude, Longitude and Coordinate System Grids appeared first on GIS Geography.

]]> https://gisgeography.com/latitude-longitude-coordinates/feed/ 39 The State Plane Coordinate System (SPCS) https://gisgeography.com/state-plane-coordinate-system-spcs/ https://gisgeography.com/state-plane-coordinate-system-spcs/#comments Mon, 13 Feb 2017 15:41:26 +0000 http://gisgeography.com/?p=13410 The State Plane Coordinate System divides the United States into 124 zones to locate any point with a high level of accuracy (one part in 10,000).

The post The State Plane Coordinate System (SPCS) appeared first on GIS Geography.

]]> https://gisgeography.com/state-plane-coordinate-system-spcs/feed/ 3 How Universal Transverse Mercator (UTM) Works https://gisgeography.com/utm-universal-transverse-mercator-projection/ https://gisgeography.com/utm-universal-transverse-mercator-projection/#comments Sun, 15 May 2016 09:03:09 +0000 http://gisgeography.com/?p=10431 Universal Transverse Mercator (UTM) segments the Earth into 60 zones (each UTM zone is 6‎°) and projects each zone with an upright cylinder of its own.

The post How Universal Transverse Mercator (UTM) Works appeared first on GIS Geography.

]]> https://gisgeography.com/utm-universal-transverse-mercator-projection/feed/ 16 Geodetic Datums: NAD 27, NAD 83 and WGS84 https://gisgeography.com/geodetic-datums-nad27-nad83-wgs84/ https://gisgeography.com/geodetic-datums-nad27-nad83-wgs84/#comments Wed, 25 Nov 2015 23:17:09 +0000 http://gisgeography.com/?p=7572 Ellipsoids, survey benchmarks and triangulation - these are the ingredients for geodetic datums. NAD27, NAD83 and WGS84 are common datums in North America.

The post Geodetic Datums: NAD 27, NAD 83 and WGS84 appeared first on GIS Geography.

]]> https://gisgeography.com/geodetic-datums-nad27-nad83-wgs84/feed/ 5 Degrees/Minutes/Seconds (DMS) vs Decimal Degrees (DD) https://gisgeography.com/decimal-degrees-dd-minutes-seconds-dms/ https://gisgeography.com/decimal-degrees-dd-minutes-seconds-dms/#comments Fri, 20 Nov 2015 11:33:08 +0000 http://gisgeography.com/?p=16538 We can find any location on Earth using latitude and longitude coordinates. And we measure those coordinates with decimal degrees or degrees/minutes/seconds

The post Degrees/Minutes/Seconds (DMS) vs Decimal Degrees (DD) appeared first on GIS Geography.

]]> https://gisgeography.com/decimal-degrees-dd-minutes-seconds-dms/feed/ 16 Greenwich Meridian (Prime Meridian) https://gisgeography.com/prime-greenwich-meridian/ https://gisgeography.com/prime-greenwich-meridian/#comments Fri, 13 Nov 2015 01:57:24 +0000 http://gisgeography.com/?p=10413 The Greenwich Meridian (or Prime Meridian) is a zero degrees longitudinal It is the start-point which we measure 180 degrees east and west.

The post Greenwich Meridian (Prime Meridian) appeared first on GIS Geography.

]]> https://gisgeography.com/prime-greenwich-meridian/feed/ 8