基础地理空间数据持续更新模式分析

Research on fundamental geo-spatial data dontinuous updating model

基础地理空间数据持续更新已经成为世界各国关注的热点及难点问题。文中对基础地理空间数据持续更新的3种主要模式:定期更新、增量更新和级联更新进行总结与探讨,分析这3种更新模式的概念、更新的方式方法、涉及的关键技术以及有待解决的问题等。通过对这3种更新模式的梳理,拓展基础地理空间数据持续更新的思路,为今后研究工作的开展奠定基础。

Continuous updating of fundamental geo-spatial data has become a hot topic as well as a tricky problem all over the world.At present there are three dominant updating models,the periodic updating,incremental updating and multi-scale linkage updating.Research is made on the definitions,updating methods,essential techniques,and unsolved problems of the three updating models,laying foundation for the improvement and innovation of continuous updating of fundamental geo-spatial information.