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GIS Final Vocab 2014
GIS Review Vocab for Senior students
| Question | Answer |
|---|---|
| Address Locator | A system for taking a geodatabase of road reference data and formatting it to be able to geocode |
| ArcCatalog | ArcGIS program that allows you to preview data, read metadata, create new layers, and manage data |
| ArcGIS | Industry standard geospatial software suite designed by ESRI |
| ArcMap | Software component of ArcGIS which allows you to display and perform analysis on spatial data |
| ArcToolbox | Works within either ArcCatalog or ArcMap and manipulates the data within these |
| Attribute Table | Table containing all attributes of a data set |
| Attributes | Refers to the data that describes features |
| Base Map | Map with an inventory of data that can be used in analysis |
| Bearing | The direction you travel from your current position to your destination |
| Bookmarks | Navigational tool used to take you to specific areas of interest in the map display |
| Buffer (within GIS) | Creating a polygon a specified distance around the initial feature(s) |
| Catalog Tree | Positioned on the left side of the ArcCatalog window, this pane displays a list of folders and contents |
| Census Block Groups | Clusters of Census blocks that have the same first digit of the four-digit identification number |
| Census Blocks | Smallest geography used for the census. Defined by visible features such as small city blocks |
| Census Tracts | Small subdivisions of a county |
| CFCC | Census Feature Class Codes; list of codes created by the U.S. Census Bureau that provide information on the classification of a geographic feature |
| CFS | Calls for Service |
| Change Detection | Detecting areas of change in two images or themes of the same approximate area over a certain period of time can be with images or thematic data. |
| Classified | What a raster data layer's histogram is directly represented in a data layer |
| Clipping | Allows you to eliminate parts of a data set or image that is not necessary for a study |
| Connect to Folder | Toolbar button that allows you to establish a connection to commonly used folders |
| Continuous Data | Data that illustrates a gradation over an area such as imagery or temperature. |
| Coordinate System | Format that the data is put in to represent the round earth on a flat surface |
| Data Frame | Map element that defines a geographic extent, page extent, coordinate system, and other display properties |
| Data Frame Properties | Contains options to edit the data frame |
| Data Layer | Individual data files used in ArcMap |
| Decennial | Occurring every 10 years |
| Defined Interval | Same as equal interval except the number of classes is determined by the interval chosen |
| DEM | Digital Elevation Model, digital file consisting of terrain elevations for ground positions at regularly spaced horizontal intervals |
| Digitize | The process of transofming data from an image into a shapefile(or more generally putting visual data onto digital media) |
| Display Tab | Located in ArcMap's Table of Contents pane, shows the data layers in the Table of Contents in the order they are drawn in the map display |
| Display units | The units of measurement displayed in ArcMap both on the bottom of the screen and in the scale bar in the map printout |
| Dissolve(Within GIS) | When you aggregate(combine) features based on specific attributes |
| Double | An eight-byte number tha can store up to fifteen significant digits; you specify the precision(number of integers) and scale(number of decimal places) |
| Effects Toolbar | A toolbar in ArcGIS which controls brightness, contrast, and trasnparency of a data layer |
| Elevation | The altitude above sea level ofa position(also referred to as the z value) |
| Equal Interval | Grouped so the range of values in each classification is the same |
| Feature Class | Collection of common features, each having the same spatial representation, point,line, or polygon |
| Feature Extraction | The process of finding areas in an image that have the same characteristics. |
| FEMA | Federal Emgergency Management Agency |
| Field Statistics | Measurement of the statistical measures of all data in the field |
| File Geodatabase | Collection of geographic datasets of various types used in ArcGIS, created for ArcGIS 9.2. While it does not have size limitations that the personal does, it also is not backwards compatible. |
| Float | A four-byte nyumber that can store up to seven significant digitsl you specify the precision(number of integers) and scale(number of decimal points) |
| Flowchart | The drawn representation in model builder of the functions that will be compiled |
| 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 |
| GPS Constellation | A Global navigation system with 24+ satellites orbiting the earth at an altitude of 12,000 statue miles that providess precise, worldwide position and navigation information |
| Heading | The direfction you are moving |
| Hyperlink | A Typed key that connects directly to a file or website from a data point |
| Join | When you append the fileds fron one table to those on another table through a attribute or field that is found in both. There is usually a 1:1 relationship between the two tables, or a 1:many. |
| Layer File | A file that retains all of the symbology and labels that you have set when it is saved so that they do not need to be changed when you add the data layer to another map. |
| Line Feature | Part of a feature class composed of line data, based upon two or more y,y locations connected directly to one another, |
| Long Integer | Integer values that will take up to 4 bytes of data or less; Numeric values can range between -2 billion and 2 billion |
| Manual classification | Allows you to enter intervals |
| Map Template | A standardized appearance for a map which is either created by another, or is created by an individual user or an organization for its own use for customization of multiple maps. |
| Merge | To combine two separate data sets that share a particular feature into one data set |
| Metadata | Information about the shapefile and its creation process |
| ModelBuilder | A tool that can be used in ArcCatalog to combine data and create processes that complete tasks normally done in ArcMap without you needing to open or operate the ArcMap portion of the software |
| Natural Breaks | ArcMap classified data using natural grouping and patterns |
| Orthorectification | Process of properly adjusting an image by refrencing a DEM (Digital ElevationModel) and aligning to a feature theme to take into account elevation changes. |
| 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 |
| Quantile | Groups are assigned the same number of features |
| Raster Data | Data that is broken down into units- either pixels or some form of grid value. |
| Rectification | Process of aligning a non-georefrenced file, such as an image, to one that is georefrenced. |
| Relate | When the information on two separate tables are connected to one another. They are not appended and remain two separate tables, but when data on one table is selected, the second tables data that shares the defined attribute is selected as well. These is |
| Route | A group of waypoints in their navigational order that can be entered into a GPS unit |
| Short Integer | Integer values that will take up to two byteof data or less; numeric values can range between -32,000 and 32,000 |
| Snapping | When the vertices will automatically connect to other vertices most near where the mouse positions it |
| Spatial Join | Data being joined together based on geographic location, rather than a shared data column |
| Summarize | When a new table is formed showing details of the selected columns |
| Text | Alphanumeric characters |
| Track | the current direction traveled relative to ground position |
| Transparency | the level of opacity of a data layer in ArcGIS |
| Union | When two distinct data layers are combined into one based upon a matching data value |
| UTM | Universal Transverse Mercator |
| Vector | Data that is based upon x,y points, forming points, lines, and polygons |
| Vertex | One of a set of ordered x,y coordinate pairs that defines that shape of a line of polygon feature |
| Waypoint | Locations or positions of landmarks or other points of interests that can be taken with a gps unit |
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asugden4
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