What is GIS? GIS is an integrated system used to view and manage information about geographic...
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Transcript of What is GIS? GIS is an integrated system used to view and manage information about geographic...
![Page 1: What is GIS? GIS is an integrated system used to view and manage information about geographic places, analyze spatial relationships, and model spatial.](https://reader035.fdocuments.us/reader035/viewer/2022062222/5697bf7b1a28abf838c838d3/html5/thumbnails/1.jpg)
Introduction to GISWhat is GIS?
GIS is an integrated system used to view and manage information about geographic places, analyze spatial relationships, and model spatial processes.
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2GE110 Fall 2010 Week 1_Thursday
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All About GIS . . .GIS allows you to discover patterns and
relationships you cannot easily see in a table
GIS stores two types of information:
Features – Objects found on Earth
( mountains, rivers, and lakes)
Attributes – Description of Features
GE110 Fall 2010 Week 1_Thursday
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Raster Aerial Photos Satellite
Images DEM
A GIS map contains layers - a collection of graphic objects that are alikeLayers may contain features or surfacesFeatures have
shape and size location can be displayed at different sizes linked to information spatial relationships
Surfaces have a geographic expanse numeric values
Vector Points Lines Polygons
GE110 Fall 2010 Week 1_Thursday
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Data SourcesHardcopy
Maps
Coordinates
GE110 Fall 2010 Week 1_Thursday
Digital Data
GPS
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GIS FunctionsCapture
Store
Query
Analyze
Display
Output
GE110 Fall 2010 Week 1_Thursday
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QuerySelect by Attributes
GE110 Fall 2010 Week 1_Thursday
Identify
Select by Location
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AnalysisExtract
Overlay
Proximity
Statistics
GE110 Fall 2010 Week 1_Thursday
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Display
GE110 Fall 2010 Week 1_Thursday
Graphs
Reports
Maps
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Output
Animation (*.avi , *.mov)
GE110 Fall 2010 Week 1_Thursday
*.emf - Enhanced Metafile*.eps - Encapsulated PostScript*.ai – Adobe Illustrator*.pdf – Portable Document Format*.svg – Scalable Vector Graphics *.bmp – Bitmap*.jpg – Joint Photographic Experts Group*.png – Portable Network Graphics *.tif – Tagged Image File Format *.gif - Graphics Interchange Format
Export
Web (*.kml , *.kmz)
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GIS Software Tools Available in GIS Lab
GE110 Fall 2010 Week 1_Thursday
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GIS Hardware
GE110 Fall 2010 Week 1_Thursday