GIS Key Concepts and Terms

Key Concepts and Terms

22 cards   |   Total Attempts: 192
  

Cards In This Set

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Attribute Data
Data that describes the characteristics of spatial features
Continuous features
Spatial features that exist between observations
Coverage
An ESRI data format for topological vector data
Data exploration
Data centered query and analysis
Discrete features
Spatial features that do no exist between observations, form separate entities and are individually distinguishable
Dynamic segmentation model
A data model that allows the use of linearly measured data on a coordinate system
Geodatabase data model
An ESRI data model that is object based
Geographic information systems
A computer system for caputuring, storing, querying , analyzing and displaying geographically referenced data
Georelational data model
A vector data model that uses a split system to store spatial data and attribute data
Geospatial data
Data that describe both the locations and characteristics of spatial features on the earths surface
GIS modeling
The process of using GIS in building models with spatial data
Object based data model
A data model that uses objects to organize spatial data and stores spatial data and attribute data in a single system
Projections
The process of transforming from a geographic grid to a plane coordinate system
Raster data model
A spatial data model that uses a grid and cells to represent the spatial variation of a feature
Regions
Higher level vector data that can have spatially disjoint components and can overlap on another