GIS terms starting with B

18 terms

  1. Backup To create a copy of data as a precaution against the loss or damage of the original data.
  2. band One layer of a multispectral image representing data values for a specific range of the electromagnetic spectrum of reflected light or heat (e.g.
  3. band separate An image format that stores each band of data collected by multispectral satellite scanning instruments in a separate file.
  4. Bandwidth The amount of information or data that can be sent over a network connection in a given period of time.
  5. base map A map containing geographic features used for location reference. Roads, for example, are commonly found on base maps.
  6. base table A table that is physically stored in the database. Compare with view.
  7. Basemap The necessary GIS layers properly symbolized to create a common looking digital map of the District of Columbia.
  8. Baud Rate The number of times per second a communications channel changes the carrier signal it sends on a phone line.
  9. Binary large object (BLOB) The data type of a column in an RDBMS table which can store large image or textual data as attributes.
  10. Bit A bit ( B inary dig IT ) is the smallest unit of computer data. A bit consists of either 0 or 1. There are eight bits in a byte.
  11. BND The file in a coverage or grid which contains the coverage extent.
  12. Boolean expression A type of expression that reduces to a true or false (logical) condition. A Boolean expression contains logical expressions (e.g.
  13. border arcs The arcs that create the outer edge boundary of a polygon coverage. In LIBRARIAN, the tile boundary arcs that split a polygon coverage into tiles.
  14. breakline A linear feature that defines and controls the surface behavior of a tin in terms of smoothness and continuity.
  15. buffer A zone of a specified distance around coverage features. Both constant- and variable-width buffers can be generated for a set of coverage features based…
  16. Bug A problem with computer software or hardware that causes it to malfunction or crash.
  17. Business and Economic Development Economic activities or employment. For example, resources describing labor, revenue, commerce, industry, and specialized incentive areas.
  18. byte Eight bits. A byte is a collection of bits used by computers to represent a character (i.e., "a", "1", or "&").