Technology Overview Geographic Information Systems.

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Presentation transcript:

Technology Overview Geographic Information Systems

GIS: GEOGRAPHIC INFORMATION SYSTEM Geographic data converted to digital format and georeferenced Developed by national, state and local sources Can provide information on a many types of features Combines geographic information with tabular data

Remote Sensing GPS GIS Data Sources Paper Maps

Common types of GIS data Topographic maps Infrastructure –Roads, Rail, Trails, Water, Sewer, Phone lines Geology Hydrography –Lakes, Ponds, Rivers, Streams Demographic (Census) Wetlands –NWI, USGS, Remote Sensing Soils Groundwater resources Landcover/Landuse Digital Elevation Models Watershed delineations

What makes GIS work? GIS SOFTWARE - Stack different data layers GIS SOFTWARE - Knows how features are related to each other spatially

GIS System Data Types SWAINS LAKE Young Rd –Attribute Data names, labels –Reference Data relational data Wetlands Lake Watershed Boundary Streams Roads Sampling Sites Wells

Graphs Maps Tables What can you do with GPS and GIS? Present information as...

Slight Severe

Not all GIS uses are related to “bugs and bunnies”

METADATA… Who developed the data? What was the original source data? When was the data developed? When was the last update? What is the scale of the data? What are the attributes of the data? Who to contact to find out more? …helps keep track of your GIS data

Questions?

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