北欧气象观测资料的质量控制

Quality Control of Meteorological Observational Data in Nordic Countr ies

气象观测资料的质量对气象及相关领域的研究具有重要影响 ,如何进行气象观测资料的质量控制 ,确保资料的代表性和准确性 ,是气象资料工作者迫切需要解决的科学问题。气象观测资料的质量控制技术和方法各国均不相同 ,北欧 5国的合作研究成果具有先进性和很好的代表性。简要介绍了北欧国家对实时和非实时气象资料进行质量控制的流程 ,所采用的方法、技术等。北欧气象资料从观测台站到资料中心经历了QC0、QC1、QC2和HQC4个级别的质量控制流程 ;质量控制方法可分为单站质量控制和空间质量控制两大类 ,每类方法又分为不同的检查方案 ;

The quality of meteorological observational data is res ponsible for t he results of meteorological and the related researches. How can we control the quality of meteorological data? It has been a scientific problem confronting met eorologists. The methods and technologies of data quality control (QC) are diffe rent in different countries. The cooperative researches in this field in the fiv e countries of northern Europe occupy a leading position in the world. The flows , methods and technologies for the real-time and non-real-time meteorological da ta quality control in Nordic countries are described. Their data quality control adopts a routine of four-level QC: QC0, QC1, QC2 and HQC. The methods include s ingle-station checking and spatial checking, and each kind of quality checking u ses different schemes. The QC flagging is very important in the process of data quality control. The flagging methods are different for different users. The sch emes of QC flagging are also dissimilar in the Nordic countries.