环境背景数据分类编码研究

通过对环境背景数据分类编码进行研究,形成如下主要结论：以环境背景数据为研究对象,在综合考察数据对象的地学基础、语义时间、存储格式、记载介质、负责机构、专题信息等属性特征的基础上,提出完整的环境背景数据概念;在以地球信息科学为技术支撑的陆地系统科学中,强调环境背景数据的分类编码应侧重从宏观角度实现环境背景数据的发现,“综合为体,分类为用”是环境背景数据分类及编码的意义所在;结合国家标准《地理数据-元数据》的具体实施,着重讨论分类编码的贯彻实施应以元数据为标准载体,在统一的环境背景数据分类编码一时无法确定的阶段,可以利用核心元数据中的关键字字段实现分类编码的间接引用,确保元数据标准对不同系列分类编码的兼容并包．

Study on Classification and Coding of Environment Background Data

Classification and coding of environment background data was studied and the main conclusions were as follows:Environment background data is the object of study,based on the integrated research of attribute characteristics of geographic base,semantic time,storage format,record medium,responsible institution and thematic information,the integrated concept of environment background data was put forward.In the Land System Science supported by Geoinformatics,the classification and coding of environment background data should emphasize discovering environment background data in macroscopical view and the meaning of classification and coding of environment background data was "Integration is soul,classification for application".During the course of implementation of geographical data-metadata,metadata should be the criterion carrier of classification and coding.Before the uniform classification and coding was ascertained,the field of core metadata should be used to realize indirect quotation,which ensuring the compatibility of metadata criterion to different series of classification and coding.