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Geographic Extent

The spatial boundary or coverage area of a dataset or map, defining the limits of analysis.

Geographic Extent

What does Geographic Extent mean?

The physical limits or area that a dataset, map, or geographic analysis covers are referred to as its geographic extent. It specifies the latitude and longitude (x and y) minimum and maximum coordinates that surround the region of interest.


To put it simply, geographic extent indicates "where" on Earth the data pertains, such as a city, nation, or particular area. With coordinates for the top, bottom, left, and right edges, it is frequently represented as a bounding box.


In GIS, geographic extent is significant for:


  • Choosing the region to be examined or shown

  • Controlling the performance and storage of data

  • Datasets are clipped or filtered according to location.


Knowing the geographic extent makes it easier to make sure that pertinent data is used for spatial analysis and mapping.

Related Keywords

The spatial region or borders that a dataset, map, or study covers are referred to as its geographic extend. In order to help people comprehend the breadth and depth of the information, it establishes the geographic boundaries within which data is gathered, examined, or shown.

The spatial boundaries of a study area or dataset are referred to as its geographic extent. A city like New York, a nation like India, a continent like Africa, or even the entire world can serve as examples. It establishes the region that is the subject of geographic data collection, analysis, and mapping.

The study area's physical boundaries are defined by its geographic extent, which directs data collection, analysis, and interpretation. Selecting the appropriate degree guarantees precise, pertinent, and significant study findings.

The goal of the investigation, the availability of data, the size of the phenomena, and resource constraints all affect geographic extent. The environment, people, and boundaries all have an impact.

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