GPS Final

What does GNSS stand for?

Global Navigation Satellite System

What GPS system does the United States use?

NAVSTAR

What does GIS mean?

Geographical Information System

What two words stand for the “S” in GIS

System and Science

What kind of data does GIS process?

spatial

What is the first primary functions of GIS software?

Geoprocessing

What is the second primary function of GIS software?

Geodata

What is the third primary function of GIS software?

Geovisualization

What must first happen in a GPS unit before you can mark waypoints and make tracks?

get satellite connections

What is the minimum number of satellite connections you need to get an accurate location?

4

What are the two versions of google earth?

Web and Pro

What is the first kind of imagery found in Google Earth?

Satellite Imagery

What is the second kind of imagery found in Google Earth?

Aerial

What is the third kind of imagery found in Google Earth?

Street View

What is the fourth kind of imagery found in Google Earth?

3D

What is the first type of data?

Qualitative

What is the second type of data?

Quantitative

What is the first scale of measurement?

Nominal

What is the second scale of measurement?

ordinal

What is the third scale of measurement?

ratio

What is the fourth scale of measurement?

interval

What is the first variable category?

Continuous vs Discrete

What is the second variable category?

Independent vs. Dependent

What is the first data model in GIS?

variable

What is the second data model in GIS?

bias

What does an object represent?

something that can be labeled (point, line, or polygon)

What is Raster data made from?

a matrix of grids

When talking about attributes, what is a table?

a set of elements arranged in rows and columns

What is a standalone table?

stores any tabular data, not associated with spatial data, OID instead of FID

What is an attribute table?

Stored attributes of map features, associated with a spatial data layer, has special fields for spatial information

What is an attribute?

Nonspatial information about a geographic feature in a GIS

What is a field in an attribute table?

a column in a table that stores the values for a single attribute

What is a row in an attribute table?

a record

What is a query?

extracts certain records from a table based on a specified condition 

What is an example of a query you would use on a map of tree species?

Select from cities where oak trees are greater than or equal to 900

Spatial Data + Data Repository=

geodatabase

What is the first function of a geodatabase?

to store spatial data in a central location

What is the second function of a geodatabase?

apply global rules and relationships

What is the first kind of geodatabases?

file

What is the second kind of geodatabases?

personal

What does CSV stand for?

Comma Separated Values

What kind of data does a TIFF file contain?

Coordinate systems

What is Metadata

the data or information about the data

What is a coordinate system?

a reference framework that defines the position of features in two or three dimensional space

What is a projected coordinate system?

converts spherical to planar coordinates; 3D to 2D maps

What is an unprojected coordinate system?

references spherical globe coordinates; degrees of latitude and longitude

What is the first commonly used coordinate system?

UTM

What is the second commonly used coordinate system?

GCS

What is the third commonly used coordinate system?

State Plane

What does latitude measure?

North to South

What does longitude measure?

East to West

Is latitude an X or Y value?

Y

Is longitude an X or Y value?

X