Exam 1/ general Concepts
Links location and database information to help visualize patterns, relationships, and trends
What is GIS?
GPS, Digitizing, Georeferencing, Questionnaires and surveys, and remote sensing are ways of
What is Creating Data?
Combine layers of data to create new information
What is an overlay?
Consists of a matrix of cells (or pixels) organized into rows and columns (or a grid) where each cell contains a value representing information.
What is a raster?
Data about data, tells you who made it, when it was made, what it was made from, and what Coordinate System it’s in
Bonus: Why is this important?
What is Metadata?
Written steps going through the process of creating data
What is Workflow?
Boolean Operator that contains both items in the query
What is AND?
Buffer, clip, merge, dissolve, intersect, union, erase, etc. tools
What is are components of Geoprocessing?
Raster type that displays elevation.
What is a DEM
Taking one layer with a wide range of data and condensing it into a specific study area
What is a Clip?
What is Accuracy?
What is a spatial join?
Useful GIS data must have a ___ component
What is Spatial?
Areas that allow you to group data together for easier analysis
What are Zones?
Converting an image into points, lines, or polygons
What is Digitizing?
In order for a map to be displayed properly, both the Coordinate system and the ____ have to match
What is Datum?
An area on a map where two areas overlap and the data is 'missing'
What is a sliver?
In order for a map to be displayed properly, both the Coordinate system and the ____ have to match
What is Datum?
Data that exists in a defined location/space
Bonus: What is it generally paired with?
What is Discrete?
Bonus: What is Continuous? (Data exists everywhere)
Analysis where sites are ranked based on proposed criteria related to how well they would fit.
What is Suitability Analysis
A single Feature is associated with ___ record(s), and ____ fields.
What is 1 Record, Unlimited Fields
Name a Query that would select Paul Smiths and Brighton from a shapefile?
What is "NAME" = 'Paul Smiths' OR "NAME" = 'Brighton'
The GIS Analysis Process
100 points per correct step
What is:
Frame the question
Select/understand your data
Choose a method of analysis
Process the data
Investigate and analyze results
A raster based on points with known values
What is Interpolation
KEY field characteristics for a successful join.
What are: Values share a field data type, tables have same exact value unique to its layer, values are unique to each record.