| 面向水文数据整合的一体化水文索引模型研究 |
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| 引用本文： | 张文,邱文东,孟诣卓,陈雅莉.面向水文数据整合的一体化水文索引模型研究[J].水文,2018,38(5):6-10. |
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| 作者姓名： | 张文 邱文东 孟诣卓 陈雅莉 |
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| 作者单位： | 武汉大学遥感信息工程学院;长江水利委员会水文局 |
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| 基金项目： | 国家重点研发计划“国家水资源立体监测体系与遥感技术应用”(2017YFC0405806)； |
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| 摘 要： | 随着水文行业信息化程度的不断提高,对数据的需求逐渐从单一、具体化向多源、综合化方向发展。当前,在水文行业内,对数据按照大类分而治之的管理模式已渐与用户需求脱节,给数据的综合利用带来困难。针对该问题,梳理了现有数据结构与管理模式,提出一种水文数据整合与索引模型(Hydrological Data Integration and Index Model, HDIIM),利用该模型在多个水文数据库与水文应用之间搭建水文数据整合层,建立多库统一的一体化水文索引,实现对多库信息的整合与快速查询。该方法有效屏蔽了多个水文数据库之间的异构性,支持跨库的数据检索与应用,从而提高水文数据的获取与使用效率。实验证明,HDIIM能够有效提高水文数据的检索效率,特别是针对批量检索操作,HDIIM的表现较现有方法更加高效和稳定。
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| 关 键 词： | 水文数据 信息整合 水文索引 树形索引 |
| 收稿时间： | 2017/4/19 0:00:00 |
Research on Hydrological Data Integration and Index Model |
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| ZHANG Wen,QIU Wendong,MENG Yizhuo,CHEN Yali.Research on Hydrological Data Integration and Index Model[J].Hydrology,2018,38(5):6-10. |
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| Authors: | ZHANG Wen QIU Wendong MENG Yizhuo CHEN Yali |
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| Institution: | 1. School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China;2. Bureau of Hydrology, Changjiang Water Resource Commission, Wuhan 430010, China |
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| Abstract: | With the development of information service in hydrological industry, the related applications are calling for more comprehensiveand multisource data. The existing data management methods that organize the data separately by its category fail tomeet the demand of the users and hinder the integrated application of the data. To address the problem, this paper investigated thestate-of-the-art data management methods and proposed a Hydrological Data Integration and Index Model (HDIIM). The proposedmodel established an integral hydrological data index between the hydrological database and applications by building the data integrationlayer, which has achieved efficient retrieval and integration. By shielding the heterogeneity of multiple databases, HDIIM caneffectively support inter-database applications and data acquisition. The experiments demonstrate that the proposed model significantlypromotes the retrieval efficiency, especially for batch operations. |
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| Keywords: | hydrological data information integration hydrological data index tree index |
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