riparian vegetation is a component of river system that performs certain basic functions including primary vegetative production, protecting stream banks from erosion, trapping sediments, promoting water quality, wildlife habitat and fisheris, forage for livestock, etc. in this research, spatio-temporal change of vegetation riparian area of aghbolagh-river as an upstream of karoon-river for 65-...

The notion of spatio-temporal multi-granularity is fundamental when modeling objects in GIS applications in that it supports the representation of the temporal evolutions of these objects. Concepts and issues in multi-granular spatio-temporal representations have been widely investigated by the research community. However, despite the large number of theoretical investigations, no comprehensive...

As efforts grow to develop spatio-temporal database systems and temporal geographic information systems that are capable of conveying how geographic phenomena change, it is important to associate the spatio-temporal process with a vivid representation. The paper propose a way for visualization base on dynamic symbol base, by which represent the spatio-temporal process in a more vivid and visual...

This paper describes about spatio-temporal geographic information system, named STIMS(Spatio-Temporal Information Management System). STIMS handle temporal information assigned each geographic object and can execute several kinds of spatial operations on the world of specified time. The system adopts implicit topology data model to handle such temporal data. By this data model, the data structu...

The >>Open Source<< Perspective deals with the spatio-temporal distribution pattern of Miocene hominids and suggests a pan-African perspective on the evolution of bipedalism. The shrinking of the rainforest from the Middle Miocene resulted in a selection pressure that was similar along its wide-stretched margin. The earliest hominids might represent co-existing geographic variants.

This paper investigates temporal changes of topological relationships and thereby integrates two important research areas: rst, two-dimensional topological relationships that have been investigated quite intensively, and second, the change of spatial information over time that has recently been identiied as an important research topic. We investigate spatio-temporal predicates, which describe d...