主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

Journal of Meteorology and Environment ›› 2022, Vol. 38 ›› Issue (6): 65-72.doi: 10.3969/j.issn.1673-503X.2022.06.008

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Validation of real-time analysis products in total cloud cover in Sichuan province

Wei WU1,2(),Xiao-long HUANG1,2,*(),Xu GUO1,2,Hui-bing WANG3   

  1. 1. Sichuan Provincial Meteorological Observation and Data Centre, Chengdu 610072, China
    2. Heavy Rain and Drought-Flood Disasters in Plateau and Basin Key Laboratory of Sichuan Province, Chengdu 610072, China
    3. Emeishan Meteorological Station of Sichuan Province, Emeishan 614200, China
  • Received:2021-10-09 Online:2022-12-28 Published:2022-12-27
  • Contact: Xiao-long HUANG E-mail:25155177@qq.com;xiaolonghuang116@163.com

Abstract:

Based on the total cloud cover data observed by 41 national ground meteorological observation stations in Sichuan province in 2019, the total cloud cover real-time analysis products developed by National Meteorological Information Center were validated from various aspects.The results show that there are some differences in the evaluation results of different spatial matching methods.The real-time analysis products can reflect the variation of total cloud cover, but its value is lower than the ground human observations.The real-time analysis products have a good ability to identify the total cloud cover in Sichuan province, the accuracy rate in summer is higher than that in winter, and the accuracy rate in Sichuan Basin is higher than that in the Western Sichuan Plateau and Panxi Region.From the test of the total cloud cover component level, the consistency rate is the highest, the error is the smallest on sunny days, and the accuracy rate is the highest on cloudy days.

Key words: Real-time analysis products, Station observation, Spatial matching

CLC Number: