地球信息科学学报 ›› 2011, Vol. 13 ›› Issue (3): 338-345.doi: 10.3724/SP.J.1047.2011.00338

• 地理信息系统模型、方法与应用分析 • 上一篇    下一篇

地学领域数据网格的构建与其应用案例分析

宋佳1, 冯敏1, 张金区1,2, 尹芳1   

  1. 1. 中国科学院地理科学与资源研究所 资源与环境信息系统国家重点实验室,北京 100101;
    2. 华南师范大学,广州 510631
  • 收稿日期:2011-01-20 修回日期:2011-05-22 出版日期:2011-06-25 发布日期:2011-06-15
  • 作者简介:宋 佳(1980-),男,博士,助理研究员,主要研究方向:地学数据网格与地学e-Science,地理本体。 E-mail: songj@lreis.ac.cn
  • 基金资助:

    中国科学院"十一五"信息化专项"数据应用环境建设和服务"项目(INFO-115-C01)科学数据库子项目资助。

The Construction & Application for Data Grid of Geosciences

SONG Jia1, FENG Min1, ZHANG Jinqu1,2, YIN Fang1   

  1. 1. State Key Laboratory of Resources and Environment Information System, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    2. South China Normal University, Guangzhou 510631, China
  • Received:2011-01-20 Revised:2011-05-22 Online:2011-06-25 Published:2011-06-15

摘要: 网格是20世纪90年代中期发展起来的新技术,它把互联网上分散的资源融为有机整体,实现资源的全面共享和有机协作。本文简单介绍了信息领域网格的起源和发展过程,并对几种网络计算技术进行了比较分析。进而将网格技术引入到地学领域,对地学数据网格作了初步的需求分析,阐述了构建地学数据网格的思路。最后,以人地系统科学数据网格为例,分析了人地系统科学数据网格数据层和中间件的实现方法,并基于该网格通过DEM地表呈现模型给出了地学领域数据密集型网格计算的应用,对改进地学研究方法,提升应用效率,推动地学科研信息化具有一定意义。

关键词: 网格, 云计算, 时空数据, 模型计算, 网格服务

Abstract: Grid is the new technology of IT (Information Technology) field and is developed from the 1990s. It aims to make distributed resources on internet become an organic whole and implement resources sharing and cooperation in an all-round way. The origin and development of grid is simply introduced in the beginning of the paper. And several computing technologies based on the internet are analyzed and compared with grid computing. Meanwhile, the construction of Chinese scientific data grid supported by Chinese Academy of Sciences dates from 2002 is summarized. Then the thought of constructing data grid of geosciences is illustrated in the paper. It is believed that the data grid of geosciences is the infrastructure of e-GeoScience. And the requirements for data grid of geosciences are discussed from several different sides including data characteristics, data users and service patterns in geosciences. Finally, taking scientific data grid for the human-land system as an example, the data layer and the overall framework of the middleware of that are given. And the key problems and its implementation ways in scientific data grid for the human-land system are presented. The scientific data grid for the human-land system has been deployed in four institutes of Chinese Academy Sciences and the distributed resources and unified services are formed. A data intensive application for the scientific data grid, the land surface appearance model based on DEM, is demonstrated in the paper. It is automatic for model when the model is deployed on the scientific data grid for the human-land system. It has positive effects for improving study efficiency of geographic science and promoting the development of e-GeoScience.

Key words: grid, cloud computing, spatio-temporal data, model computing, grid service