Development of a 3D GIS and its application to karst areas |
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| Authors: | Qiang Wu Hua Xu Wanfang Zhou |
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| Institution: | (1) Department of Resource Exploitation Engineering, China University of Mining and Technology, Beijing, 100083, China;(2) Beijing Institute of Petrochemical Technology, Beijing, 102617, China;(3) P.E. LaMoreaux & Associates, Inc. 106 Administration Road, Ste. 4, Oak Ridge, TN 37830, USA |
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| 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. |
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| Keywords: | 3D GIS Spatial analysis Karst Groundwater Huaibei China |
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