DEVELOPMENT AND APPLICATION OF SPATIO-TEMPORAL DATA
MANAGEMENT SYSTEM
R. Zhao
Chinese Academy of Surveying and Mapping, Beijing, China
zhaorong@casm.ac.cn
Geographic data should be described by spatial, temporal and
attribute components, but the spatio-temporal queries are difficult to be
answered within current GIS. This paper describes research into the development
and application of spatio-temporal data management system based upon GeoWindows
GIS software platform which was developed by Chinese Academy of Surveying and Mapping(CASM). Faced the current and practical requirements of spatial
information application, and based on existing GIS platform, one kind of spatio-temporal
data model which integrates vector and grid data together was established firstly.
Secondly, we solved out the key technique of building temporal data topology, successfully
developed a suit of spatio-temporal database management system adopting object-oriented
methods. The system provides the temporal data collection, data storage, data
management and data display and query functions. Finally, as a case study,
we explored the application of spatio-temporal data management system with the administrative
region data of multi-history periods of China as the basic data. With all the
efforts above, the GIS capacity of management and manipulation in aspect of
time and attribute of GIS has been enhanced, and technical reference has been
provided for the further development of
temporal geographic information system(TGIS).