Mapping and Monitoring Urban Growth
Mapping of urban growth is different then the mapping of urban area. Urban area can be detected and mapped using a single temporal image, that is, image from a specific time. However, mapping of urban growth necessitates minimum of two temporal imageries; since it actually means the mapping of changes between two different times. This process is often called change detection—the process of identifying differences in the state of an object or phenomenon by observing it at different times (Singh 1989). Mapping of urban growth can lead to motoring of urban area and its growth through time.