Standard terms and definitions applicable to the quality assurance of Essential Climate Variable data records

This document contains a selection of standard terms and definitions relevant to the quality assurance of Essential Climate Variable (ECVs) data records. It reproduces appropriate terms and definitions published by normalization bodies, mainly by BIPM/JCGM/ISO in their International Vocabulary of Metrology (VIM) and Guide to the Expression of Uncertainties (GUM). It also reproduces selected terms and definitions related to the quality assurance and validation of Earth Observation (EO) data, available publicly on the ISO website and on the Cal/Val portal of the Committee on Earth Observation Satellites (CEOS). Several of those terms have been recommended by CEOS in the GEO-CEOS Quality Assurance framework for Earth Observation (QA4EO) and, as such, are applicable to virtually all Copernicus data sets of EO origin. Terms and definitions are expected to evolve as normalization organisations regularly update their standards.本文件收录了与基本气候变量（Essential Climate Variable, ECV）数据记录的质量保障相关的标准术语与定义。本文转载了标准化机构发布的适用术语与定义，主要包括国际计量局（BIPM）、计量学指南联合委员会（JCGM）及国际标准化组织（ISO）在其《国际计量学词汇》（International Vocabulary of Metrology, VIM）与《测量不确定度表示指南》（Guide to the Expression of Uncertainties, GUM）中发布的内容。此外，本文还转载了部分与地球观测（Earth Observation, EO）数据的质量保障及验证相关的精选术语与定义，这些术语与定义可从ISO官网及地球观测卫星委员会（Committee on Earth Observation Satellites, CEOS）的校准与验证门户（Cal/Val portal）公开获取。其中部分术语已由CEOS在《地球观测GEO-CEOS质量保证框架》（QA4EO）中推荐，因此几乎适用于所有源自地球观测的哥白尼数据集。随着标准化机构定期更新其标准，相关术语与定义也将随之演进。