A spatial reference system (SRS) or coordinate reference system (CRS) is a framework used to precisely measure locations on, or relative to, the surface of Earth as coordinates.

Dec 1, 2025 · This website is essential for geospatial professionals, GIS developers, and cartographers, providing an extensive database of spatial reference systems used globally.

The National Spatial Reference System (NSRS) is a consistent coordinate system that defines latitude, longitude, height, scale, gravity, and orientation throughout the United States.

Satellite coordinates and user receivers must be expressed in a well defined reference system. Thence, an accurate definition and determination of such systems is essential to assure a …

Each coordinate system corresponds to a particular way of expressing the location of a point with respect to the given reference. Each set of coordinates corresponds to only one point in that …

A coordinate system is a reference system used to represent the locations of geographic features, imagery, and observations such as GPS locations within a common geographic framework.

[coordinate systems, measurement] A method for identifying positions on the globe. This is often constructed with a grid that either refers to the earth's latitude and longitude (graticule), or a …

Spatial Reference System is a coordinate system used to reference spatial information, typically to the surface of the earth. You will see these two terms, and their acronyms, used …

A reference system in computer science is characterized by a well-defined origin and a method for specifying offsets from that origin, which may be expressed as angular or distance measures …

Dec 27, 2023 · The Coordinate System is the mathematical component of the Coordinate Reference System. It is defined by mathematical formulas that assign equivalent coordinates …