GeoWorld: Time Adds Another Dimension to GML

Issue Date: March - 2006, Posted On: 3/1/2006

GMLDEVELOPMENT
BY RON LAKE

In the “GIS world,” there’s much talk about spatial data, but most of the problemsinvolve spatio-temporal information. Spatial objects typically evolve through time, and temporal evolution is critical in almost all application domains, ranging fromdisaster management (e.g., tracking a hurricane or tsunami path) to national security (e.g., vehicle, container or human movements) and air-traffic management.

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