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.
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.
作者
王叶晨梓
杜震洪
张丰
刘仁义
WANG Yechenzi DU Zhenhong ZHANG Feng LIU Renyi(Zhejiang Provincial Key Lab of GIS, Zhejiang University, Hangzhou 310028, China Department of Geographic Information Science, Zhejiang University, Hangzhou 310027, China)
出处
《浙江大学学报(理学版)》
CAS
CSCD
北大核心
2017年第5期584-590,共7页
Journal of Zhejiang University(Science Edition)
基金
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)
关键词
海洋环境
场数据
分片地图
统一架构
分层
分块
marine environment
field data
tiled map
unified architecture
stratification
partitioning