What technology is commonly used for distance measurement in geospatial data?

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The Global Positioning System (GPS) is a technology specifically designed for accurate distance measurement and location determination on the earth's surface. It utilizes a network of satellites that provide precise timing and positioning information, allowing users to calculate their exact location in terms of latitude, longitude, and altitude. This capability is crucial for a wide range of applications in geospatial data, including navigation, mapping, and surveying.

The effectiveness of GPS stems from its ability to triangulate a position based on signals received from multiple satellites orbiting the Earth. By comparing the time it takes for signals to travel from the satellites to the receiver, GPS can accurately determine distances and hence positions, making it a foundational tool in geospatial practices.

In contrast, the other listed technologies serve different functions. Geographic Information Systems (GIS) are used for the analysis and visualization of spatial data but do not directly perform distance measurements. Remote Sensing involves capturing data about the Earth's surface from a distance (typically via satellites or aerial sensors) and is used to gather information over large areas but relies on GPS for accurate georeferencing. Digital Elevation Models (DEMs) represent the terrain's elevation data and help in understanding landforms and elevation but do not measure distances in the same direct manner as GPS

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