Measuring grid

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A measuring grid is the regular, area-wide installation of measuring points on the earth's surface or on technical objects in order to be able to carry out a spatially precise analysis or modeling of the object under investigation.

The geo - or topographically regular distribution of the measuring points over the area to be investigated ( grid ) occurs when measurements are taken on the earth's surface (e.g. for geophysics or soil science ) mostly in a rectangular or square grid , preferably in north-south and east -West direction. This has several advantages:

  1. The evaluation of the measurement profiles can be one-dimensional ( 1D ) in both directions
  2. or be integrated into a two-dimensional model ( 2D )
  3. an arrangement of the points according to the cardinal points facilitates the analysis if the geographical coordinates of neighboring measuring points ( Gauß-Krüger coordinates x, y ) or geodetic latitude and longitude ( B, L ) are the same in one dimension.

For technical objects - e.g. B. machine systems, building facades, dams or car bodies - the grid is to be carried out according to typical properties of the object - z. B. as a network of longitudinal and transverse profiles or horizontal / vertical.

A digital terrain model also has the structure of a rectangular or square grid. Only the data ( heights of the grid points) are not primary data , but representative mean values ​​of the terrain heights of the individual grid quadrangles.