地球信息科学学报

地球信息科学学报 ›› 2015, Vol. 17 ›› Issue (2): 191-196.doi: 10.3724/SP.J.1047.2015.00191

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WCPS与Web传输协议的地理格网互操作耦合模型及应用研究

余劲松弟1(), 承达瑜2, 吴升1,*()   

  1. 1. 福州大学福建省空间信息工程研究中心,福州 350003
    2. 中国石化石油工程技术研究院, 北京 100101
  • 收稿日期:2014-04-03 修回日期:2014-07-11 出版日期:2015-02-10 发布日期:2015-02-10
  • 通讯作者: 吴升 E-mail:yyx350@126.com;ws0110@163.com
  • 作者简介:

    作者简介：余劲松弟(1984-),男,博士,副教授,研究方向为地理信息标准化、数字化对地观测、空间数据库和长期科学数据保存。E-mail:yyx350@126.com

  • 基金资助:
    福建省自然科学基金计划项目(2014J05048);国家“863”重大项目课题(2012AA12A208);国家科技支撑计划项目(2007BAH16B00);民用航天预研”十二五”项目;国家自然科学基金项目(41401454);福州大学科研启动基金项目(0102510073)

Research on Geographic Grid Interoperation Model by Coupling WCPS and Web Protocols

YU Jinsongdi1(), CHENG Dayu2, WU Sheng1,*()   

  1. 1. Spatial Information Research Center of Fujian Province, Fuzhou University, Fuzhou 350003, China
    2. SINOPEC Research Institute of Petroleum Engineering, Beijing 100101, China
  • Received:2014-04-03 Revised:2014-07-11 Online:2015-02-10 Published:2015-02-10
  • Contact: WU Sheng E-mail:yyx350@126.com;ws0110@163.com
  • About author:

    *The author: SHEN Jingwei, E-mail:jingweigis@163.com

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摘要：

地理格网互操作增强了地理格网信息资源的融合能力,促进了地理格网信息资源的充分合理利用。然而,地理格网互操作解决方案复杂,通用Web协议没有针对具体地理格网互操作的定义,需研究通用Web协议与地理格网互操作的藕合。OGC WCPS是比较好的地理格网互操作语言规范。本研究在剖析WCPS语言主要特点基础上,归纳了标准的地理格网及其互操作的函数模型,分析了地理格网互操作Web实现的相关协议与标准规范,创造性地提出WCPS与Web传输协议的地理格网互操作耦合模型,针对地理格网分析的Web实现展开快速原型研究,结果表明,WCPS与Web应用协议的耦合可有效提高地理格网分析的互操作性,增强GIS基础设施的服务功能,为WCS Processing扩展标准的制定与更新提供了科学判据,从而为国家区域数字化建设提供支持。

关键词: WCPS, 地理格网, 互操作

Abstract:

The explosion of available Geographic Grid resources in a wide range of Earth Science System application domains is shifting the paradigm of Earth Data Science. To exploit and acquire further insights and knowledge based on archived Geographic Grid resources, the existing infrastructures and techniques need to be scaled up and scaled out. However, adding more nodes does not provide a real analytics capability improvement if it is implemented without a corresponding analytics service interfaces among these nodes. The development of standard-based online analytics services is considered as one of the potential solutions and is becoming indispensable to strengthen mutual integration between Geographic Grid information systems and other information systems. In this study, standard-based Geographic Grid models and analytics operations are reviewed and discussed by considering different web communication protocols, making it possible to explore different modular coupling and application profiling. Based on the probe of OGC Web Coverage Processing Language (WCPS) specifications and relevant Web Coverage Service (WCS) 2.0 core and extension specifications, a web interoperability study is carried out to prototype an interoperable Geographical Grid analytics service. Accordingly, the research concludes the coupling patterns, principle issues and application directions for future explorations on Geographical Grid Analytics web applications. The result shows that the coupling of WCPS and OGC WCS 2.0 can effectively improve the interoperability of Geographical Information Application Infrastructure in terms of Earth Science System monitoring and forecasting, so as to provide an effective support to National Digital Information Infrastructure Initiatives.

Key words: WCPS, geographic grid, interoperability