Intro to Geospatial Technologies
Transcript of Intro to Geospatial Technologies
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Intro to Geospatial Technologies
AP Human Geography - Damon - 2016
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Thinking Spatially …
Thinking about how people, places and things are
organized and arranged on the surface of the Earth.
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Where is it? Why is it there? What difference does it make?
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Everyday Geospatial Technologies
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Geospatial Technologies: Tools To Ask and Answer
Spatial Questions
1. Global Positioning System (GPS)
2. Geographic Information System (GIS)
3. Remote Sensing
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Global Positioning System (GPS)• 31 satellites established by
U.S. military, working since 1973
• Receiver picks up radio signals from GPS system
• Location communicated in coordinate system
• GPS data can be brought into GIS
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Global Positioning System (GPS)
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How GPS Is Used
To pinpoint absolute locations
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Geographic Information SystemSoftware that captures, stores, analyzes,
manages and displays spatial data
Virtual Globes Web Maps Desktop GIS
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Types of GIS: Virtual Globe: Google Earth
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Types of GIS: Web Maps
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Types of GIS: Desktop GIS
ESRI’s ArcMap
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How GIS Is Used
To analyze and map spatial data
Spatial data: data about locations and their characteristics
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Remote Sensing
• Gathering information about something without touching it – Aerial photos– Satellite photos
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How Remote Sensing Is Used
To collect visual information about our world
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GPS Data and Remotely Sensed Images Can Be Brought Into GIS
GPS waypoints layered on satellite images using GIS