摘要
目的 形成自然环境试验元数据体系,为数据资源提供完备的描述及合理的规则规范,为数据库设计开发、数据挖掘分析、数据共建共享等提供支持.方法 针对自然环境试验专业特点、数据类型以及应用需求,借鉴其他领域的元数据标准规范,梳理分析自然环境试验涉及的数据特征元素集合,划分自然环境试验元数据类别,评估元数据作用,形成自然环境试验元数据体系.结果 形成了覆盖数据集描述信息、要素参数信息、数据质量信息、维护信息、限制信息、数据集分发信息、元数据参考信息、数据应用成果信息共8 个类别的自然环境试验元数据体系.结论 自然环境试验元数据具有资源描述、数据选择、信息检索、管理溯源、解释分析、储存入库等作用,为数据有效管理和共建共享提供了基础.本文提出的元数据体系为自然环境试验元数据标准提供了参考思路.
Abstract
The work aims to form a metadata system that provides comprehensive description and reasonable rule specifica-tions for dataset resources and support for database design and development,data mining and analysis,data co-construction and sharing,etc.Aiming at the professional characteristics,data types,and application needs of the natural environment experiment,metadata standards and specifications from other fields were drawn to sort out and analyze the collection of data feature ele-ments involved in natural environment experiments,classify the metadata of natural environment experiments,evaluate the role of metadata,and finally form a metadata system for natural environment experiments.This natural environment experiment metadata system covered eight categories,including dataset description information,element parameter information,data quality information,maintenance information,restriction information,dataset distribution information,metadata reference information and data application achievement information.The metadata of natural environment experiments has functions such as resource description,data selection,information retrieval,management traceability,interpretation and analysis,and storage,which pro-vides a foundation for effective data management and co-construction and sharing.The metadata system proposed provides a reference for the metadata standards of natural environment experiments.
NETL
NSTL
万方数据