Distributed geospatial information processing: sharing distributed geospatial resources to support Digital Earth  

作　　者：Chaowei Yang Wenwen Li Jibo Xie Bin Zhou 

机构地区：[1]Joint Center for Intelligent Spatial Computing,College of Science,George Mason University,Fairfax,VA,USA

出　　处：《International Journal of Digital Earth》2008年第3期259-278,共20页国际数字地球学报（英文）

基　　金：supported by a Chinese 973 project(2006CB701306);a NASA Geosciences Interoperability project(NNX07AD99G),and FGDC 2005 CAP award(05HQAG0115).

摘　　要：This paper introduces a new concept,distributed geospatial information processing(DGIP),which refers to the process of geospatial information residing on computers geographically dispersed and connected through computer networks,and the contribution of DGIP to Digital Earth(DE).The DGIP plays a critical role in integrating the widely distributed geospatial resources to support the DE envisioned to utilise a wide variety of information.This paper addresses this role from three different aspects:1)sharing Earth data,information,and services through geospatial interoperability supported by standardisation of contents and interfaces;2)sharing computing and software resources through a GeoCyberinfrastructure supported by DGIP middleware;and 3)sharing knowledge within and across domains through ontology and semantic searches.Observing the long-term process for the research and development of an operational DE,we discuss and expect some practical contributions of the DGIP to the DE.

关 键 词：Digital Earth DGIP INTEROPERABILITY CYBERINFRASTRUCTURE ontology semantic search 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]