1、第 1 期吴薇等：四川省降水实况分析产品影响因素综合评估Comprehensive assessment of influencing factors of precipitation real-time analysis products in SichuanWU Wei1，2，HUANG Xiaolong1，2，XU Xiaoli1，2，LI Shiying1，2，DU Bing1，2，JIANG Yuhe1，2（1.Sichuan Provincial Meteorological Observation and Data Centre，Chengdu 610072，China；2.He
2、avy Rain and Drought-Flood Disasters in Plateau and Basin Key Laboratory of Sichuan Province，Chengdu 610072，China）Abstract：Based on multi-source observation data and data fusion and assimilation technology,National Meteorological Information Center has developed and released real-time analysis produ
3、cts that has passed the industry admittance review.In order to ensure the objectivity and authenticity of the evaluation results of the real-time analysis products,the representativeness of the data sourceground station data participating in the inspection and evaluation of the products was studied.
4、10 precipitation impact indicators such as longitude and latitude,slope,slope direction and data availability of ground meteorological stations from May to August 2020 were selected.On the basis of indicator screening,the weight of each impact indicator to form a comprehensive impact indicator of ea
5、ch station was determined by using correlation analysis,principal component analysis,and grading inspection of the comprehensive impact indicator were conducted.The results show that five of the 10 impact indicators are retained after screening,and their weights from large to small are data availabi
6、lity,equipment stability,slope variability,surface roughness and altitude.The comprehensive impact value of stations in Sichuan Basin is mostly above 0.9,and the stations with low comprehensive impact values are mainly distributed in Ganzi,Aba and Liangshan prefectures of Sichuan Province,which is c
7、losely related to the complex terrain and poor representativeness of station in these areas.Through the grading evaluation of the comprehensive impact index,it is reasonable to take the data of stations with the comprehensive impact index value above 0.8 as the true value data source for the evaluat
8、ion of precipitation real-time analysis products.Key words：precipitation；real-time analysis products；principal component analysis；assessment（责任编辑：刘晓云；校对：蔡迪花）干旱气象 2022年高被引文章序号123456789101112131415题 名气象干旱指数在中国的适应性研究进展西北地区气候变化新动态及对干旱环境的影响总体暖干化，局部出现暖湿迹象植被指数及其研究进展甘肃省人体舒适度地域分布特征研究19792016年青藏高原降水时空特征我国温度植被
9、旱情指数TVDI的应用现状及问题简述河北省中南部暴雨雨滴谱特征20052014年我国不利天气条件下交通事故特征分析河北重度污染天气分型及其气象条件特征未来中国地区的暴雨洪涝灾害风险预估我国臭氧污染时空分布及其成因研究进展“315”北方强沙尘暴天气成因分析塔克拉玛干沙漠腹地地表辐射和能量平衡及小气候特征兰州市短时强降水的时空分布特征及地形因素我国荒漠化主要研究进展作 者李忆平，李耀辉张 强，张存杰，白虎志，等郭 铌贾海源，陆登荣张宁瑾，肖天贵，假 拉沙 莎，郭 铌，李耀辉，等陈子健，胡向峰，陈保君，等宁贵财，康彩燕，陈东辉，等赵 娜，马翠平，李 洋，等李柔珂，李耀辉，徐 影刘楚薇，连鑫博，黄建平段伯隆，刘新伟，郭润霞，等齐斐斐，买买提艾买买体依明，霍 文，等张 宁，刘科男，王遂缠，等郭瑞霞，管晓丹，张艳婷发表年份201720102003201020182014201920162017201820202021202020202015卷（期）35（5）28（1）21（4）28（4）36（3）32（1）37（4）34（5）35（5）36（3）38（3）39（4）38（1）38（2）33（3）2022年被引频次（CNKI）2514121099988888888注：被引频次统计不包括会议论文、学位论文引用。151
