人工审核制作A文件与MDOS自动制作A文件对比分析

Cntrastive Analysis between Mnual Poduction of A File and Atomatic Poduction with MDOS

通过设计地面气象观测月数据文件对比软件,以江西省91个国家级自动站2016年全年经过省级人工质量控制后制作的地面气象观测数据A文件为参考标准,与气象资料业务系统(简称“MDOS系统”)自动制作的同站同期数据A文件进行对比分析,并进一步对数据差异的时空分布、要素分布等进行了分析。结果表明:91个国家级自动气象站全年数据对比差异个数总计为16490个,占全年数据总量的1.02‰。MDOSA文件中自动观测要素数据差异的主要原因有传感器系统性偏移、仪器安装错误、参数设置错误、疑误数据无法关联修订、异常记录未能有效判断并处理;人工观测要素数据差异的主要原因有数据格式错误、记录顺序错误、观测要素记录不匹配、漏记录等错误在MDOS平台未能有效检测出。最后提出了确保MDOS系统平台参数设置的正确性、完善MDOS系统平台数据处理能力等改进措施。

Through comparing software design on ground meteorological observation data file, with 91 national automatic stations in jiangxi province in 2016, the year after artificial quality control at the provincial level of the ground meteorological observation data in A file as the reference standard, and meteorological data service system (hereinafter referred to as MDOS system) automatically made to stand in the same period,comparing the data to A file the results showed that the number 91 national automatic station year data contrast differences amounted to 16490, or 1.02 ‰ total data for the whole year. The paper further analyzes the spatial and temporal distribution and factor distribution of data differences,points out the main reasons for the differences,and proposes improvement measures,aiming at providing more accurate observation data support for forecasting,service and scientific research.