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Geographic Information System - ArcView

Geographic Information System - ArcView. University at Buffalo Summer Institute 2003 May 12, 2003. Course Overview. You will learn - how to make a thematic map - how to query a map and table - how to join a table to a map - how to analyze spatial relationships

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Geographic Information System - ArcView

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  1. Geographic Information System - ArcView University at Buffalo Summer Institute 2003 May 12, 2003

  2. Course Overview • You will learn - how to make a thematic map - how to query a map and table - how to join a table to a map - how to analyze spatial relationships - how to present the result - how to create geographic data

  3. Introduction to GIS ArcView_module_1 May 12, 9:00 AM

  4. Outline • What is GIS? • What can GIS do? • GIS applications • What’s special about GIS? • How it works (term definition)

  5. What is GIS? Definition • An information system that is designed to work with geographically referenced data

  6. What is GIS? Layers • GIS organizes the information about place by layers

  7. What is GIS? Layers Modeling the phenomenon… Group of spatial objects with related entity type e.g. city layer, SARS layer, Tornado layer Layers Abstraction Digital Representation of Spatial Entities e.g. point, line, polygon Spatial Objects Phenomenon of interest in the real world Spatial Entities e.g. urban growth, Tornado movement SARS spread, crime, consumer behavior

  8. What is GIS? Link bet/w map and attribute Representing in computer… • In GIS, spatial objects are linked to attributes

  9. What is GIS? Multidisciplinary Science • Geography • Mathematics • Remote Sensing • Cartography • Surveying • Statistics • Computer Science • Geodesy • Operations Research

  10. What can GIS do? Functionalities

  11. What can GIS do? Spatial Component • Estimates are that 80% of all data has a spatial component. • Data from most sciences can be analyzed “spatially”.

  12. What can GIS do? ArcView GIS • ArcView GIS lets you create map displays and maps for presentation simply by pointing and clicking. • ArcView GIS lets you visualize and analyze information in new ways, revealing previously hidden relationships, patterns, and trends.

  13. GIS applications “The application of GIS is only limited by the imagination of those who use it.” • Archaeology, agriculture, banking, defense and intelligence, electric and gas, engineering- pipeline, engineering- surveying, federal government, fire/EMS/disaster/homeland security, forestry, health and human services, insurance, education, landscape architecture, law enforcement and criminal justice, libraries and museums, location service, marine/cost/oceans, media, mining/earth science, natural resources, petroleum, real estate, retail business, state and local government, telecommunications, transportation, universities, and water/wasterwater

  14. GIS applications Network solutions

  15. GIS applications Ecosystem management

  16. GIS applications 3D mine with well data

  17. GIS applications Environmental monitoring toxic plume

  18. GIS applications Site location and client distance

  19. GIS applications Modeling of future trends

  20. What’s special about GIS? Integration • Most problems exist in a geographic context. GIS puts various themes together.

  21. What’s special about GIS? Visualization • Maps are worth a thousand words

  22. How GIS works? Term definition for ArcView users Map features • The objects represented on maps • Each map feature has a location, a representative feature type, and a symbol that represents one or more of its characteristics.

  23. How GIS works? Term definition for ArcView users Feature types • Points (e.g. Schools, train stations, fire stations, and buildings in small scale) • Lines(e.g. Highways, railroads, bridges, and creeks) • Polygons(e.g. Parks, lake, and buildings in large scale)

  24. How GIS works? Term definition for ArcView users Attributes • Information about map features • Stored as Tables Fields (column) Records (row)

  25. How GIS works? Term definition for ArcView users Themes • In ArcView, the layers are called themes • A set of related map features that are linked to attributes (e.g. roads, parcels, wildlife habitat)

  26. How GIS works? Term definition for ArcView users GIS Database • All the themes for a geographic area taken together • often called spatial database

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