海量数据仿真与分析关键技术探讨

基于地理坐标以球面方式浏览海量数据是当前“数字地球”技术的核心，已得到成熟的应用。然而其针对海量数据特殊的数据组织方式给专业应用带来困难，导致了计算机资源、大数据量浏览仿真和高精度几何分析之间的矛盾。以金沙江水文泥沙信息系统为例，列举和描述了海量数据仿真分析在水利信息系统建设中存在的技术难点，对其进行了详细的分析，并就一些实际的解决方法进行探讨。

Discussion of key technology on analysis and simulation of massive data

The core of digital earth technology is to browse massive data in a spherical way based on geographic coordinate,which is widely applied.However,the special data organization mode for the massive data brings difficulties to its application in specific sectors,which leads to contradiction among computer resources,simulation and browsing of massive data and high-precision geometric analysis.Taking the hydrological sediment information system of Jinsha River for example,the technological difficulties of massive data simulation and analysis in establishment of water resources information system is listed and described,the detailed analysis is carried out and some practical solution methods are discussed.