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BB1, U3, L1 & L2

GIS Blue Book, Unit 3 les 1 and 2

QuestionAnswer
Address Locator A system for taking a geodatabase of road reference data and formatting it to be able to geocode
Attribute Table Table containing all attributes of a data set
Attributes Refers to the data that describes features
Connect to Folder Toolbar button that allows you to establish a connection to commonly used folders
Geocode To use the Address Locater in ArcGIS in combination with a list of addresses to automaticallyy place these data points based in a road database
Point Feature Part of a feature class composed of point data, based on a single x, y location
Polygon Feature Part of a feature class composed of polygondata, based upon three or more x, y locations which are connected to one another in a closed shape
Spatial Join Data being joined together based on geographic location, rather than a shared data column
Waypoint Locations or positions of landmarks or other points of interests that can be taken with a gps unit
Map a visual representation of an area shown on a two dimensional surface.
Orthongal Viewpoint Viewing something from above (bird’s eye view)
Political maps Shows how humans have divided the Earth
Physical Shows land and water formations on earth’s surface.
Cultural Shows patterns of demographic data
Thematic detailed map showing specific places
Cartography The “science or art of making maps”
Cartographer The people who physically make the maps.
Absolute location acquired by using coordinate system to determine a referenced fixed point in space.
Eastern Hemisphere Are east of the prime meridian
Equator starting point for the lines of longitude and latitude. Divides the earth into northern and southern hemispheres.
Geographic coordinate system Establishes two sets of imaginary lines around the earth: Parallels, representing latitude, and meridians, representing longitude, forming a grid over the earth.
International data line imaginary date line that separates two calendar days located approximately 180°
Latitude Lines that run east and west along the earth’s surface.
Longitude Lines that run north and south along the earth’s surface.
Meridians Term used to describe lines of longitude.
Parallels Lines of latitude
Prime Meridian Measured at the 0 degree longitude. Starting point of the meridians.
Relative location A way of describing where an object is on an earth’s surface without giving absolute coordnants.
Tropic of Cancer Located a 23°30’ N Latitude Divides the tropics from the northern temperature zone.
Tropic of Capricorn Located at 23°30’ S Latitude divides the tropics from the southern temperature zone.
Western Hemisphere Are located west of the prime meridian to 180° longitude.
Created by: asugden