• Entry
  • Reader's guide
  • Entries A-Z
  • Subject index

Geographically distributed phenomena over a one-, twoor three-dimensional metric space can be concentrated in some subset of discrete points, be collected into mutually exclusive and collectively exhaustive areal unit aggregates, or be continuous. A surface formed by one of these phenomena, such as a population density map, usually is too irregular to be described analytically by simple, smooth mathematical functions. Rather, a single variable function, called a regionalized variable, can be specified in terms of an underlying geographic coordinate system in order to describe the phenomenon in a mixed deterministic and stochastic way, by including (a) a structural component that captures geographic trends (e.g., population density declining with increasing distance from a city center), (b) a structured random component that captures spatial autocorrelation effects (e.g., ...

    • Loading...
    locked icon

    Sign in to access this content

    Get a 30 day FREE TRIAL

    • Watch videos from a variety of sources bringing classroom topics to life
    • Read modern, diverse business cases
    • Explore hundreds of books and reference titles