The Importance of Space Database Establishment Based on DGSS in Big Data Environment
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摘要: 数字地质调查系统（DGSS）是地质调查工作与信息技术融合的产物，实现了地质调查和野外填图数据的全流程获取，获取的数据具有大数据的特点；目前，地质信息化已经进入大数据应用的数据驱动时代，为了更好地分析、研究、应用地质大数据，对基于DGSS系统建立空间数据库的工作流程与数据库内容进行了详细介绍，在不同专题图件提取应用以及利用数据驱动技术缩编1：50万乌兰浩特幅地质图的基础上，论述了基于DGSS系统建立地质图空间数据库的重要性及其在中小比例尺地质图数据库更新中的关键作用.Abstract: Resulting from an integration of geological survey and information technology, the Digital geological survey system (DGSS) can acquire throughout data for geological survey and field mapping, which is the characteristics of Big Data. At present, geological information has entered into data-driven times of Big Data application. In order to analyze, study and apply Big Data better, this paper introduces the work process of establishing spatial database and the contents of database based on DGSS, discusses the importance of establishing geological map spatial database and its key role of updating database in medium-small map, by extracting and applying different thematic maps and mapping 1:500 000 scale geological map of Ulanhot using data-driven technology.
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图 1 地质图空间数据库建设流程（据张广宇等，2012）
Fig. 1. Spatial database construction progress of the geologic map (modified from Zhang et al., 2012)
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