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- Title
Development of a 3D GIS and its application to karst areas.
- Authors
Qiang Wu; Hua Xu; Wanfang Zhou
- Abstract
There is a growing interest in modeling and analyzing karst phenomena in three dimensions. This paper integrates geology, groundwater hydrology, geographic information system (GIS), database management system (DBMS), visualization and data mining to study karst features in Huaibei, China. The 3D geo-objects retrieved from the karst area are analyzed and mapped into different abstract levels. The spatial relationships among the objects are constructed by a dual-linker. The shapes of the 3D objects and the topological models with attributes are stored and maintained in the DBMS. Spatial analysis was then used to integrate the data in the DBMS and the 3D model to form a virtual reality (VR) to provide analytical functions such as distribution analysis, correlation query, and probability assessment. The research successfully implements 3D modeling and analyses in the karst area, and meanwhile provides an efficient tool for government policy-makers to set out restrictions on water resource development in the area.
- Subjects
KARST; LANDFORMS; HYDROLOGY; GEOGRAPHIC information systems; INFORMATION storage &; retrieval systems; GROUNDWATER; DATA mining
- Publication
Environmental Geology, 2008, Vol 54, Issue 5, p1037
- ISSN
0943-0105
- Publication type
Article
- DOI
10.1007/s00254-007-0886-4