地面气象台站元数据质量控制分析

气象台站元数据包含了可能影响气候资料序列均一性的重要信息,是分析、检验、订正气候资料序列的科学参考依据,只有经过质量控制与处理的气象台站元数据才能真实的反应其对气候资料序列非均一性的影响程度。针对气象台站元数据可能存在的疑误信息,设计了一套适用于地面气象台站元数据的质量控制技术,采用格式检查、内部一致性检查、时间连续性检查等方法进行质量控制。利用该质量控制方法对全国31个省(区、市)的1428个国家站1951-2011年的台站历史沿革数据文件进行质量控制,结果表明:该质量控制方法能够有效地将疑误信息进行标识,可为气象台站元数据的应用提供可靠的质量保障。该质量控制方法已应用于气象资料业务系统(MDOS)中,并在全国省级气象资料部门业务运行。

Quality Control Analysis of Meteorological Station Metadata

Meteorological station metadata contains important information that may affect the homogeneity of climate data series and is a scientific reference for analysis, testing, and revision of climate data series. Only the metadata of meteorological stations after quality control and processing can truly reflect the degree of influence on the heterogeneity of climate data series. In this paper, a set of quality control techniques for the metadata of meteorological stations is designed based on the basic idea of traditional quality control method, the methods of limit value inspection, internal consistency inspection and time continuity inspection are used for quality control. The quality control method is used to control the historical data files of 1428 stations in 31 provinces (region, cities) of China from 1951 to 2011. The results show that the quality control program can effectively mark the error information. It can provide reliable quality assurance for the application of metadata of meteorological stations. The quality control method has been applied in the meteorological data service system (MDOS) and in provincial meteorological data departments nationwide.