Objective Nasopharyngeal carcinoma(NPC)is an invasive cancer with particularly high incidence in Southeast Asia and Sout......

This paper addresses how open geodata and crowd-sourced geodata, and the open geoportals might be integrated with the ma......

如何表达流域复杂的系统结构是实现流域信息与模型集成,构建流域决策支持系统需要研究的首要问题在分析现有流域数据库存在问题的......

The research of Geographical Information System(GIS)is one of the most active fields today.With the development of GIS,t......

GeoData Web service is an important way to achieve the integration and sharing of heterogeneous geospatial data at prese......

本文提出一种基于Access和Geodata base的林地小班自动编号方法,实现林地小班编号自动化,具有准确、快捷、高效的特点,有效解决了......

1 引言地理信息系统GIS的研究,是当前世界上最热门、最有应用前景的课题之一。它需要处理的地理数据,一般来说是非常巨大的,并且这......