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浙江大学学报(理学版)  2017, Vol. 44 Issue (5): 584-590    DOI: 10.3785/j.issn.1008-9497.2017.05.014
地理信息系统     
面向分片地图的多分辨率格点数据统一存取方法
王叶晨梓1,2, 杜震洪1,2, 张丰1,2, 刘仁义1,2
1. 浙江大学 浙江省资源与环境信息系统重点实验室, 浙江 杭州 310028;
2. 浙江大学 地理信息科学研究所, 浙江 杭州 310027
A unified accessing method of multi-resolution grid point data for tiled map services
WANG Yechenzi1,2, DU Zhenhong1,2, ZHANG Feng1,2, LIU Renyi1,2
1. Zhejiang Provincial Key Lab of GIS, Zhejiang University, Hangzhou 310028, China;
2. Department of Geographic Information Science, Zhejiang University, Hangzhou 310027, China
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摘要: 不同的海洋环境要素对象、数据文件格式及数据分辨率使得对异构且离散的场数据访问和应用受到了限制.设计了面向分片地图的统一数据多级存储组织架构,定义了适用于不同分片地图对象的海洋场数据组织方式,提出了多分辨率格点场数据分层和分块方法,并通过建立索引编码,实现将多要素、多时次、多深度、多高度的海洋环境场数据按统一维度的小区块存储并管理于多级组织架构中.该方法在海洋环境预报综合信息服务平台的应用中有效支持了异构场数据的整合、时空统计分析及可视化表达等.
关键词: 海洋环境场数据分片地图统一架构分层分块    
Abstract: The wide variety of marine environmental objects and multi-resolution scientific data bring challenges to the current approaches of data storage and processing. This paper proposes a unified architecture of marine environmental field data storage and organization for tiled map. The diversified multi-resolution field data can be organized into multiple blocks with the unified dimensions after stratification and partitioning. These blocks can be stored and managed in the architecture by index encoding. Its application to the service platform for marine environmental forecasting information shows that the proposed method supports efficiently the heterogeneous data integration, temporal-spatial statistical analysis and visualization.
Key words: marine environment    field data    tiled map    unified architecture    stratification    partitioning
收稿日期: 2016-06-17 出版日期: 2017-05-01
CLC:  P208  
基金资助: 国家自然科学基金资助项目(41471313);国家科技基础性工作专项(2012FY112300);海洋公益性行业科研专项经费资助(201505003,201305012);浙江省科技攻关项目(2015C33021);中央高校基本科研业务费专项(2016XZZX004-02,2016QNA3015).
通讯作者: 杜震洪,ORCID:http://orcid.org/0000-0001-9449-0415,E-mail:duzhenhong@zju.edu.cn.     E-mail: duzhenhong@zju.edu.cn
作者简介: 王叶晨梓(1991-),ORCID:http://orcid.org/0000-0003-4310-2691,男,硕士研究生,主要从事时空数据管理及可视化等相关技术研究.
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引用本文:

王叶晨梓, 杜震洪, 张丰, 刘仁义. 面向分片地图的多分辨率格点数据统一存取方法[J]. 浙江大学学报(理学版), 2017, 44(5): 584-590.

WANG Yechenzi, DU Zhenhong, ZHANG Feng, LIU Renyi. A unified accessing method of multi-resolution grid point data for tiled map services. Journal of ZheJIang University(Science Edition), 2017, 44(5): 584-590.

链接本文:

https://www.zjujournals.com/sci/CN/10.3785/j.issn.1008-9497.2017.05.014        https://www.zjujournals.com/sci/CN/Y2017/V44/I5/584

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