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北京奥运会期间的气象条件分析 预览 被引量:25

Preliminary Analysis on Meteorological Conditions During 2008 Beijing Olympic Games
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摘要 利用北京1951--2003年气象要素的时值、日值和旬值等资料,对北京7—9月尤其是奥运会比赛期间的气温、降水、湿度、风和人体舒适度指数等要素的平均状况、演变特征和极值等变化特征进行了统计分析。结果表明:北京奥运会期间的气温较适宜,对赛事有重要影响的高温天气出现概率较小;8月8—24日,平均2~3d出现1次降水;风速具有明显日变化,01:00-07:00(北京时)较小,12:00--18:00较大;沙尘、冰雹、雾和暴雨等不利天气较少发生。 Weather or climate has a great impact on modern sports. For example, good weather is favorable for both opening and closing ceremony. It is also helpful for athletes to play well in the competition. Taking into account the relationship of the meteorological factors or conditions to the athletic sports is more and more important for both sports and meteorological communities. The 29th Olympic Games will be hosted on August 2008 in Beijing. China Meteorological Administration (CMA) will provide the meteorological service such as the accurate weather conditions during this great event. The hourly, diurnal and dekadal observational data from July to September in nearly 50 years are used to statistically analyze features of the average, evolution and extremes on temperature, precipitation, humidity, wind and comfort index during the Olympic Games period in Beijing. These parameters are helpful to the arrangements of the game schedule and the involved people. The analysis on climate factors suggests that it should be appropriate to host the game during that period in Beijing. From the middle dekad of August to September, the temperatures indicate a favorable condition for the games with a clear tendency of temperature decreasing and the probability of high temperature weather which have great influence on the sports is small. After the middle dekad of August, the precipitation and the relative humidity also show a tendency of declining. On average, it is rainy in every 2--3 days during August 8--24. From July to September, the average wind velocity for both total and each wind direction shows a small variation with the value from 1.9 to 3.1 m/s and the maximum still wind frequency. There is a noticeable daily variation in wind speed with the maximum at 12:00--18:00 (BT) and minimum at 01:00--07:00. For this reason, it strongly suggests that the competitions influenced by wind, such as the badminton, the dash, the javelin and so on, be arranged as far as possible in the morning or in the evening. The hum
作者 朱燕君 陈峪 李庆祥 熊安元 Zhu Yanjun,Chen Yu,Li Qingxiang,Xiong Anyuan( 1) Department of Atmospheric Science, School of Physics, Peking University, Beijing 100081 ; 2) ( National Meteorological Information Center, Beijing 100081 ; 3) National Climate Center, Beijing 100081 )
出处 《应用气象学报》 CSCD 北大核心 2006年第B08期 35-41,共7页 Quarterly Journal of Applied Meteorology
基金 科技部“奥运气象保障技术研究”课(2002BA904805)资助.
关键词 气象条件 奥运会 舒适度指数 meteorological conditions Olympic Games comfort index
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