全球离散格网:回顾与展望(英文)

被引:17
作者
迈克尔F·古德切尔德
机构
[1] 美国加州大学圣芭芭拉分校地理系空间研究中心
关键词
全球离散格网(DGG); 全球空间格网(GSG); 地理信息系统(GIS); 数字地球; 数字球体;
D O I
暂无
中图分类号
P208 [测绘数据库与信息系统];
学科分类号
070503 ; 081603 ; 0818 ; 081802 ;
摘要
全球离散格网是数字球体表达的基本数据模型,它提供了一种栅格化表达地球弯曲表面的方法,催生了数字地球。该文回顾全球离散格网与数字地球的发展史,评析了以谷歌地球为代表的第一代数字地球的技术实现。在为科学界及社会公众提供地表与近地表信息交流方面,数字地球的有效性面临挑战,第一代数字地球在很多方面存在不足,其中最显著的缺陷是不能基于社会与环境过程模型模拟地球的将来状态。展望未来,简要分析了下一代数字地球应具有的基本特征。
引用
收藏
页码:1 / 6
页数:6
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