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GIS STUDY SET EXAM
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GIS STUDY SET EXAM ...
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GIS STUDY SET EXAM 2024-2025GIS (Acronym) - ANSWER Geographic Information System (pictures in
the form of a map which are created by a computer system containing a
database, a graphics program and tools to manage, edit and analyze
geographically located data called features and attributes)
Features - ANSWER Natural objects and human-defined objects (all
real-world objects, trees, buildings, roads, rivers, continents, oceans,
counties, census tracts, parcels)
Attributes - ANSWER Describe features in a GIS (Name of a country, its
population, and area)
Types of information stored in a GIS - ANSWER Features and Attributes
GIS (defined) - ANSWER An integrated computer system that is used to
display, store, manage, and analyze data about objects on the earth.
Differences between Paper, Digital, and GIS maps - ANSWER Paper -
static, image does not change like a photograph
Digital - map viewed on a computer which may be static like a paper
map or may have some dynamic tools for finding a location, zooming,
panning.
GIS - more than a map, has a database behind it with tools to bring
more information in, display data in various ways, look at sets of data to
see patterns & compare relationships, analyze data to create new
information, and helps to provide answers to questions.
Functions of a GIS - ANSWER Visualization, Geodata Management, and
Analysis
(3 primary functions)
Visualization - ANSWER looking at data on a map to get information and
see relationships (GIS Map is a window into your data with different
views to see relationships and patterns)
, Geodata Management - ANSWER organizing and updating information
so that it is useful
Analysis - ANSWER applying GIS tools to geographic data to answer
questions and support decisions.
Geographic Approach (def.) - ANSWER 1. Collect and organize
geographic data to understand E
2. Analyze data to create geographic knowledge
3. Apply geographic knowledge to find solutions
(a way to gain understanding and solve problems by creating and
applying geographic knowledge with GIS as a tool)
Uses of the geographic approach - ANSWER Automate workflows
Use resources wisely
Organize key information
Make and support decisions
Components of a Feature - ANSWER Shape
Location
Symbol
Attributes
Shapes of a Feature - ANSWER Point, Line, Polygon
Feature Location (expressed as) - ANSWER Latittude and Longitude
Feature Symbol - ANSWER has a shape, outline, color, pattern, or all of
these (simple or complex)
Feature Attributes - ANSWER information that describes the feature (i.e.
country - name, population, capital)
Layer - ANSWER a collection of features, a visual representation of a
feature class on a GIS map
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