地理科学进展 ›› 2009, Vol. 28 ›› Issue (4): 481-488.doi: 10.11820/dlkxjz.2009.04.001

• 方法模型与应用 •    下一篇

地学计算的研究进展与问题分析

陈彦光1|罗静2   

  1. 1. 北京大学 城市与环境学院|北京 100871;2. 华中师范大学 城市与环境学院|武汉 430079
  • 出版日期:2009-07-25 发布日期:2009-07-25
  • 基金资助:

    国家科技部科技基础工作专项重点资助项目(2007FY140800);国家自然科学基金项目(40771061)

On Development and Problems of GeoComputation

CHEN Yanguang1, LUO Jing2   

  1. 1. Department of Geography, Peking University, Beijing 100871, China|
    2. Department of Geography, Huazhong Normal University, Wuchang 430079, China
  • Online:2009-07-25 Published:2009-07-25
  • Contact: 陈彦光(1965-),男,副教授,中国地理学会会员,主要研究方向为城市与理论地理学。 E-mail:chenyg@pku.edu.cn

摘要:

对西方地学计算的起源、概念、知识体系以及存在争议的问题进行了概括地介绍和评述。地理计算的发展动因在于探索空间复杂性的需要,发展源流则在于计算科学,技术主线可以归结为:计算机科学→计算科学→计算地理学→地理计算科学。地理计算与地理信息系统(GIS)具有密切关系,需要运用定量地理学的全套工具,横跨自然、人文两大领域,可望成为一个全新的知识领域,甚至有可能发展出一种新的研究范式。地理计算科学在西方发展迅速,但也存在一些令人不安的问题,其中之一便是缺乏知识建构的核心。由于地理计算具有超越地理学的意向和趋势,本文建议以计算地理学为主体之一,以“利用模型寻求理解”为原则,建立一个相对收敛的知识体系。

关键词: 计算科学;计算地理学;地理计算;GIS;定量地理学;空间复杂性

Abstract:

This paper is devoted to introducing the concept and ideas of GeoComputation (GC) to Chinese geographers. GC is regarded as the application of computationally intensive approaches based on high performance computing to solving geographical problems and to explaining geographical phenomena. One of the origins of GC is linked to computational science with a principle of the use of models to gain understanding. GC includes all the tools of quantitative geography, but it is not the development of quantitative geography. GC was covered in some GIS books, but it is not another name for GIS. In addition to the greater computational efficiency and fuzziness provided by computational intelligence technologies, GC can improve the quality of study results by using computationally intensive methods to reduce the number of assumptions and eliminate the irrelevant simplifications imposed by computational constrains. A problem is that we don’t know what ‘core GeoComputation’ is. In order to make the diverse research efforts on GC convergent, we should have computational geography become the principal part of GC, which seems to exceed the limit of geography.

Key words: computational science; computational geography; GeoComputation; GIS; quantitative geography; spatial complexity