Abstract
Coastal-related data are four-dimensional in nature, varying not only in location and water depth but also in time. The heterogeneous and dynamic nature of coastal-related data makes modeling and visualization of these data a challenging task. A new object-oriented spatiotemporal data model to represent dynamic three-dimensional coastal data is proposed in this study. In the proposed model, a set of abs data types allowing suitable spatiotemporal operations is defined to manipulate complex coastal data. In addition, a logical data model is proposed for the design of a spatiotemporal database. The proposed object-oriented and logical data models are implemented in a real-world coastal information management system in Hong Kong. An elegant visualization framework for displaying the coastal data, based on the concept of a time-depth bar, is presented in the case study.
Original language | English |
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Pages (from-to) | 815-828 |
Number of pages | 14 |
Journal | Journal of Hydroinformatics |
Volume | 14 |
Issue number | 3 |
DOIs | |
Publication status | Published - 20 Aug 2012 |
Keywords
- Coastal environmental management system
- GIS
- Spatiotemporal data model
- Visualization
ASJC Scopus subject areas
- Geotechnical Engineering and Engineering Geology
- Atmospheric Science