【摘要】 现时性是地震应急基础数据库的核心,是衡量地震应急基础数据库价值的重要标准。本文根据地震应急基础数据库的内容和来源,以广东省地震应急基础数据库中的属性数据与属性空间数据为例,分析了它们各自的特点,从而提出了一套有效的且具有针对性的更新维护方法。更多还原

【Abstract】 Data "fresh" is core of earthquake emergency database,and the important standard to judge the value of earthquake emergency database.According to content and source,this paper takes attribute data and spatial attribute data of earthquake emergency database of Guangdong Province as an example,analyzes their different characteristics,and puts forward the the effective and pertinency update maintenance method.更多还原