Site grid
Definition
A rectangular coordinate system established across a site, usually with the origin at a datum peg and axes aligned to magnetic north or true north. Context positions, finds, and survey data are all reported within the grid so that features can be mapped relative to one another.
Related terms
- Backsighting
- The process of orienting a total station by pointing it at a known reference point (backsight) after setting it over the instrument...
- Datum peg
- A fixed ground marker with precisely recorded coordinates that serves as the origin point for a site grid. All spatial measurements on...
- Resection
- A method of determining the instrument station's own coordinates by measuring angles and distances to two or more points of known position....
- RTK-GPS
- Real-Time Kinematic Global Positioning System: a satellite-positioning technique where a static base station transmits correction data to a roving receiver in real...
- Total station
- An electronic instrument that simultaneously measures horizontal and vertical angles and distance to a reflective prism, computing three-dimensional coordinates directly. Typical angular...
Explained in
- Total-Station and GPS SurveyA rectangular coordinate system established across a site, usually with the origin at a datum peg and axes aligned to magnetic north or true north. Context pos...