Geographic Information System (GIS)

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Across
  1. 2. Information System (GIS) A computer-based system used to collect, store, manage, analyse and display geographical information.
  2. 5. Layer A collection of related geographical information displayed on a map, such as roads, rivers or land use. Thematic Map A map that presents information about a particular subject, such as population density, rainfall or income distribution.
  3. 6. Sensing The collection of information about Earth's surface using satellites, aircraft or drones without direct physical contact.
  4. 9. The process of converting a street address or place name into geographical coordinates.
  5. 10. Data A method of representing geographical features using points, lines and polygons.
  6. 12. Positioning System (GPS) A satellite-based system that determines the location of a receiver on Earth.
  7. 13. A database designed to store, organise and manage geographical data and related attributes.
  8. 16. Analysis A technique that combines multiple map layers to identify relationships and generate new spatial information.
  9. 17. Data Descriptive information associated with a geographical feature, such as a building's name, address or population.
  10. 19. Analysis The examination of geographical data to identify patterns, relationships and trends.
Down
  1. 1. The process of assigning real-world coordinates to a map, image or spatial dataset.
  2. 3. The angular distance of a location east or west of the Prime Meridian.
  3. 4. The angular distance of a location north or south of the Equator.
  4. 7. System A reference framework used to identify geographical locations through coordinates.
  5. 8. Elevation Model (DEM) A digital representation of land-surface elevation used in terrain analysis and flood-risk assessment.
  6. 11. Data Geographical information represented as a grid of cells or pixels, commonly used for satellite images and elevation maps.
  7. 14. Data Data that describes the geographical location, shape or position of objects, such as roads, rivers and buildings.
  8. 15. Analysis A technique that creates a zone around a geographical feature within a specified distance, such as 2 km around a hospital.
  9. 18. Decision Support System (SDSS) A computer-based system that uses spatial data and analytical tools to help users make location-based decisions.