| Constructing a raster-based spatio-temporal hierarchical data model for marine fisheries application |
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| 作者姓名： | SU Fenzhen ZHOU Chenhu ZHANG Tianyu |
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| 作者单位： | SU Fenzhen1*，ZHOU Chenhu1，ZHANG Tianyu11. Marine GIS Center，State Key Laboratory of Resources and Environmental Information System，Institute of Geographical Sciences and Natural Resources Research，Chinese Academy of Sciences，Beijing 100101，China |
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| 基金项目： | 国家重点基础研究发展计划(973计划);国家新技术研究发展基金(863计划) |
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| 摘 要： | 1 Introduction The GIS has shown great success for terrestrial ap- plicationsin the last decades, but its use in marine fields has been far more restricted. One of the main reasons is that most of the GIS systems or their data models are designed for land…
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| 关 键 词： | 地理信息系统 时空变化 数据模型 渔业管理 数据仓库 |
| 收稿时间： | 2005-08-27 |
| 修稿时间： | 2005-11-10 |
Constructing a raster-based spatio-temporal hierarchical data model for marine fisheries application |
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| SU Fenzhen,ZHOU Chenhu,ZHANG Tianyu.Constructing a raster-based spatio-temporal hierarchical data model for marine fisheries application[J].Acta Oceanologica Sinica,2006,25(1):57-63. |
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| Authors: | SU Fenzhen ZHOU Chenhu and ZHANG Tianyu |
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| Institution: | Marine GIS Center, State Key Laboratory of Resources and Environmental Information System, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China |
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| Abstract: | Marine information has been increasing quickly. The traditional database technologies have disadvantages in manipulating large amounts of marine information which relates to the position in 3-D with the time. Recently, greater emphasis has been placed on GIS (geographical information system)to deal with the marine information. The GIS has shown great success for terrestrial applications in the last decades, but its use in marine fields has been far more restricted. One of the main reasons is that most of the GIS systems or their data models are designed for land applications. They cannot do well with the nature of the marine environment and for the marine information. And this becomes a fundamental challenge to the traditional GIS and its data structure. This work designed a data model, the raster-based spatio-temporal hierarchical data model (RSHDM), for the marine information system, or for the knowledge discovery from spatio-temporal data, which bases itself on the nature of the marine data and overcomes the shortages of the current spatio-tempo- ral models when they are used in the field. As an experiment, the marine fishery data warehouse (FDW) for marine fishery manage- ment was set up, which was based on the RSHDM. The experiment proved that the RSHDM can do well with the data and can extract easily the aggregations that the management needs at different levels. |
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| Keywords: | marine geographical information system spatio-temporal data model knowledge discovery fishery management data warehouse |
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