检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
出 处:《International Journal of Digital Earth》2010年第1期31-46,共16页国际数字地球学报(英文)
基 金:This research was supported by National Basic Research Program of China(973 Program,No.2009CB723906).
摘 要:The understanding that mankind should reasonably exploit and utilize earth resources and effectively protect the planet on which we live,is now widely accepted.However,effective actions can only be conducted if we better understand and visualize the earth.To meet this need,digital earth science and technology have been put forward and developed.This paper introduces the evolution and development process of digital earth,and presents an overview by reviewing and analyzing the 1999 and 2009 Beijing Declaration on Digital Earth,the scientific and commercial digital earth systems,global and regional digital earth research,and some existing platforms of digital earth science.It also presents some thoughts about digital earth’s future development.
关 键 词:Beijing Declaration digital earth system global change
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.249