CLDAS短波辐射实况产品在广西的适用性评估  

Applicability evaluation of CLDAS downward shortwave radiation fusion product in Guangxi

作　　者：苏传程 陈燕丽 任晓炜 邓悦 张俊兵 黄洁 何启玄 李叶晴 SU Chuancheng;CHEN Yanli;REN Xiaowei;DENG Yue;ZHANG Junbing;HUANG Jie;HE Qixuan;LI Yeqing(Guangxi Meteorological Information Center,Nanning 530022,China;Guangxi Open Laboratory of Meteorological Big Data,Nanning 530022,China;Guangxi Institute of Meteorological Sciences,Nanning 530022,China;Shanxi Atmospheric Exploration Technology Support Center,Taiyuan 030002,China;Beihai Meteorological Bureau,Guangxi Beihai 536000,China;Open Laboratory of Guangxi Beibu Gulf National Climate Observatory,Nanning 530022,China)

机构地区：[1]广西壮族自治区气象信息中心,南宁530022 [2]广西气象大数据开放实验室,南宁530022 [3]广西壮族自治区气象科学研究所,南宁530022 [4]山西省大气探测技术保障中心,太原030002 [5]北海市气象局,广西北海536000 [6]北部湾国家气候观象台开放实验室,南宁530022

出　　处：《气象研究与应用》2024年第4期68-74,共7页Journal of Meteorological Research and Application

基　　金：广西科技重点研发项目(桂科AB17195037、桂科AB20159022);广西气象科研计划项目(桂气科2024M05)。

摘　　要：以广西地区2011—2020年的三个辐射站(南宁、北海、桂林)数据为基准,进行多时空尺度的评估检验。结果表明(:1)在季节尺度上产品与观测对比有较好的一致性,反映季节变化特征,夏秋季整体偏差较小。(2)在日尺度上,产品日变化特征一致性较好,相关系数分别均超过0.89,RMSE的范围为42.78~52.4 W·m^(-2)。(3)在小时尺度上,产品呈现纺锤型分布,季节和日变化特征明显,误差指标较好。综合而言,该产品能较好表征辐射随时间变化的能力,可作为研究广西太阳辐射活动的重要数据。This paper conducts multi-temporal and spatial scale evaluations using data from three radiation stations(Nanning,Beihai and Guilin)in the Guangxi region from 2011 to 2020.The results show that:(1)the product shows good consistency with observations at the seasonal scale,reflecting the characteristics of seasonal variations,with smaller overall deviations in summer and autumn.(2)On the daily scale,the product exhibits good consistency in diurnal variation characteristics,with correlation coefficients all exceeding 0.89,and the RMSE ranging from 42.78 W·m^(-2)to 52.4 W·m^(-2).(3)On the hourly scale,the product presents a spindle-shaped distribution,with obvious seasonal and diurnal variation characteristics and good error indicators.Overall,the product can effectively represent the ability of radiation to change over time and can be used as important data for studying solar radiation activities in Guangxi.

关 键 词：CLDAS 地表短波入射辐射 卫星反演 评估检验 

分 类 号：P422[天文地球—大气科学及气象学]