Overview of Geospatial Surveying

Geospatial data is information that originates from or pertains to a specific geographic location. It is applied in surveying so as to see the big picture of the surrounding built environment.

Components of Geospatial Data

• Vector Data: It comprises three kinds of information, which are point, polygon, and line.
• Radar Data: This refers to satellite and aerial imagery and sometimes it refers to scanned maps.
• Attributes: These are non-spatial data, extra information that gives characteristics to the spatial data assembled.
• Geographic Coordinate System (GCS): A technique for defining points on the Earth’s surface.
• Georeferencing: The process of assigning coordinates to vectors and raster images.

Application of Geospatial Surveying

• BIM (Business Information Modelling Management): Uses complex computer software for generating three-dimensional models comprising massive volumes of data associated with a project .
• Cadastre And Land Management: Maps which represent the extent of real estate and land parcels.
• Engineering Surveying: Carrying out GPS, digital level, and electronic theodolite to paint an accurate picture of both the built and natural environment.
• Geodesy: That branch of mathematics concerned with the precise measurement of the geometric shape of Earth, its orientation in space, and its gravity.
• Global Information System: Structures within which spatial data may be interpreted, modelled, and analysed.
  Legal/Regulatory Compliance: Geospatial surveyors find it necessary because the number of regulatory and legal issues about data privacy and shared information is increasing day by day.
  Mapping: It permits mapping with more comprehensive and complex resources than ever.
  Measurement Of Land And Property: It allows better recording of land and properties with ease in correcting any kind of mistake.
  Property Records/Information Systems: Very much required for the preservations, maintenance, and development of our environments.
  Remote Sensing and Photogrammetry: Accurate information from non-contact imaging and various other sensor systems.