Understanding Geospatial Data

Understanding Geospatial Data

Pradeep Garg
DOI: 10.4018/978-1-6684-7319-1.ch001
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Abstract

Geospatial data is described by its location on the Earth. There are many sources of geospatial data (e.g., remote sensing, point cloud data, LiDAR, GPS, Internet, IoT, etc.) that are acquired at different resolutions and characteristics. Two broad categories are raster data and vector data. The geographic features on the Earth surface can be represented in the form of point, line, and polygon, and their coordinates are used in GIS. Attribute data, which is the information about the geospatial data, helps in establishing the relationships between various objects on the Earth's surface in GIS. Maps and navigation are important uses for spatial data. Industries are using geospatial data analysis for enhancing their business, and governments are using them in various infrastructural projects, tracking the resources, etc. Geospatial data using GIS makes it easier to identify the patterns and visualize trends in location-based applications. It is expected that the use of AI and machine learning will further enhance the utility of geospatial data in automisation and real-time analysis.
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2 Sources Of Geospatial Data

In the past, the production and collection of geospatial data (either primary or secondary) was the first and foremost task of any GIS-based project, with data capture costs often accounting for up to 85% of the cost of a GIS project (Longley et. al., 2010). The historical moment in geospatial community occurred with the launch of Google map data in 2005, which made the geospatial data of the world available to the masses. Since then, the geospatial technology has evolved from the desktop to a cloud-based system.

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