1991~2020年中国地面气象辐射气候值数据集研制  

Dataset Development of China Surface Meteorological Radiation Climate Normals for the Period of 1991–2020

作　　者：许永芳 廖捷[1] 赵煜飞[1] XU Yongfang;LIAO Jie;ZHAO Yufei(National Meteorological Information Centre,Beijing 100081)

机构地区：[1]国家气象信息中心,北京100081

出　　处：《大气科学》2024年第5期2080-2094,共15页Chinese Journal of Atmospheric Sciences

基　　金：中国气象局创新发展专项CXFZ2022J050。

摘　　要：基于国家气象信息中心归档的中国气象辐射基本要素数据集(V2.0),研制了1991~2020年中国地面气象辐射气候值数据集。数据集研制期间,对1991年以来的地面辐射台站观测数据集元数据进行了系统的质量检查和核实订正。依据观测站址迁移信息,同时结合辐射观测沿革文件,统计了人工观测调整为自动观测的时间节点,建立气候值统计所需的分段信息,提供了一套统一为自动观测方式、代表性更好的辐射气候背景场。基于中国气象辐射基本要素数据集(V2.0)的小时值辐射数据统计得到了中国地面气象辐射小时尺度的累年气候值,与1981~2010年的中国地面气象辐射气候值相比,提供了更高时间分辨率的辐射气候值统计,具有更广泛的应用价值。最终建立的1991~2020年中国地面气候值数据集提供了中国约103个站点的总辐射、净全辐射、散射辐射、垂直面直接辐射、水平面直接辐射及反射辐射的小时(日、候、旬、月、年)曝辐量等气候值统计项目(含平均值、累计值、极值及出现日期等)的气候背景信息,为天气气候业务提供了数据支撑。According to the China Basic Elements of Meteorological Radiation(V2.0)dataset archived by the National Meteorological Information Centre,the China Ground Meteorological Radiation Climate Normals(CGMRCN)dataset spanning 1991 to 2020 was developed.Throughout its development,a comprehensive quality check and verification of the metadata from ground radiation station observations dating back to 1991 were conducted.According to the site migration information of the observation station and the radiation observation history documents,the time nodes of the transition from manual observation to automatic observation were recorded,and the segmentation information needed for climate statistics was established.This yielded a standardized set of radiation climate background fields derived from more representative automatic observation methods.According to hourly radiation data from China’s Basic Elements of Meteorological Radiation(V2.0),the hourly annual climate normals for China’s surface meteorological radiation were obtained.Compared with the hourly radiation climate values of CGMRCN spanning 1981 to 2010,our dataset offers higher temporal resolution and broader applicability,enhancing its utility for various applications.For the period of 1991–2020,CGMRCN provides climatic background information on hourly(daily,5-day,10-day,monthly,and annually)total radiation,net total radiation,scattered radiation,vertical direct radiation,horizontal direct radiation,and reflected radiation from approximately 103 stations across China(including the mean values,cumulative values,extreme values,and occurrence date),providing data support for weather and climate research.

关 键 词：地面观测 气象辐射 统计 标准气候值 

分 类 号：P468[天文地球—大气科学及气象学]