National Spatial Reference System
Encyclopedia
The National Spatial Reference System (NSRS), which is managed by the National Geodetic Survey (NGS), is a coordinate system that includes latitude
, longitude
, elevation and other values. The NSRS consists of a National Shoreline; the National CORS, a system of Global Positioning System Continuously Operating Reference Stations; and a network of over one million permanent survey markers.
Latitude
In geography, the latitude of a location on the Earth is the angular distance of that location south or north of the Equator. The latitude is an angle, and is usually measured in degrees . The equator has a latitude of 0°, the North pole has a latitude of 90° north , and the South pole has a...
, longitude
Longitude
Longitude is a geographic coordinate that specifies the east-west position of a point on the Earth's surface. It is an angular measurement, usually expressed in degrees, minutes and seconds, and denoted by the Greek letter lambda ....
, elevation and other values. The NSRS consists of a National Shoreline; the National CORS, a system of Global Positioning System Continuously Operating Reference Stations; and a network of over one million permanent survey markers.