不同时期土地利用空间数据同化方法

Approach for assimilating land use spatial data at various times

针对不同时期土地利用空间数据之间的差异以及常用软件的不足,该文基于空间数据同化基本理论及策略,提出了FME与ArcGIS联合的不同时期土地利用空间数据同化方法。详细阐述了该方法的实施步骤及相关原理,并进行了初步的实验验证。实验结果表明,所提方法能够快速高效地消除不同时期土地利用数据之间在数据格式、数据语义、坐标系统等方面的差异,提高数据之间的协调一致性。该研究为不同时期土地利用空间数据的综合应用与分析提供了参考。

In view of the differences among land use spatial data at various times and the drawback of common software, an assimilation approach combining FME and ArcGIS was proposed based on the basic theories and strategies of spatial data assimilation. The implementation steps and the related principles of the proposed approach were discussed in detail. Some experiments have been done using the real sample data to verify the proposed approach. The experimental results showed that the proposed approach could efficiently banish a series of differences among land use spatial data such as data format, data semantics and reference frame, and greatly increased the harmony and agreement of data. This study provided reference for comprehensive utilization and analysis on land use spatial data at various times.