GIS Concepts Explained (Grade 10 NSC Matric Geography): Flashcards
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Practise the cards
10 cards from this deck
4 components of GIS (acronym HDSP)
4 components of GIS (acronym HDSP)
Hardware, Data, Software, Personnel
Spatial data in GIS
Spatial data in GIS
Data showing shape & location of geographic features
Attribute data in GIS
Attribute data in GIS
Descriptive info about spatial features stored in databases
Vector format in GIS
Vector format in GIS
Uses points, lines & polygons to represent features
Raster format in GIS
Raster format in GIS
Grid of cells/pixels, each with a single value
Vector points represent
Vector points represent
Features with limited extent (wells, schools, cities)
Vector lines represent
Vector lines represent
Linear features (roads, rivers, boundaries)
Vector polygons represent
Vector polygons represent
Enclosed areas (lakes, parks, administrative regions)
GPS device function in GIS
GPS device function in GIS
Determines precise coordinates for accurate positioning
Overlay analysis in GIS
Overlay analysis in GIS
Combining multiple thematic map layers to reveal patterns