ABSTRACT
How can different aspects of geographic dynamics be visualized and
understood?
Space and time are essential to analysis and modeling of geographic
dynamics. Activities, events, or processes, as well as change and movement,
are all considered as functions of space and time. A mathematical or
statistical model for geographic dynamics, therefore, consists of spatial and
temporal variables. These spatial or temporal variables can be explicit or
implicit. Explicit variables directly reference spatial measurements (such as
distance or coordinate pairs for locations) or temporal measurements (such as
a particular instance, e.g., 10 a.m. or interval, e.g., every ten hours). For
implicit variables, space and time references are hidden in forms of other
measures, such as speed of movement or rate of change in area.
