摘要
利用张家口市崇礼1960—2014年逐日降水和天气现象资料,分析了雪季与冬奥会赛期(2月4—20日)的降雪特征。结果显示:崇礼最早降雪初日为10月13日,最迟降雪终日为4月30日,初、终雪日多年平均为11月2日和4月6日;雪季长度最长和最短分别为190 d和123 d,多年平均为156 d。雪季间最长连续无降雪时段多出现在12月末到1月下旬。冬奥会赛期前的11月上旬降雪日数少,但降雪量较大;此后各旬降雪日数、雪量差异不大。2月4—20日间平均4~5 d出现一次降雪,且主要为中小雪,出现大雪的概率极低。这些结果为冬奥会赛场充分利用降雪资源、制定赛事计划和赛事期间的气象条件预测及预报等保障提供参考依据。
Characteristics of snow season and snowfall during the period of Olympic Winter Games were analyzed by using the datasets of daily precipitation and weather phenomena from 1960 to 2014 at Chongli of Zhangjiakou. The paper reveals that the earliest beginning snowfall date is October 13, the latest ending snowfall date is April 30, mean beginning snowfall date for years is November 2 and mean ending snowfall date for years is April 6; the longest snow season is 190 days, while the shortest one is 123 days, mean length of snow season for years is 156 days. Maximum spells without snowfall in snow seasons mostly concentrate in late December to late January. Before February 4-20, which is planned for the Olympic Winter Games in 2022, more snowfall amounts but less snowfall days occurred in early November; while the difference in snowfall amounts and snowfall days are little in other ten-day periods. In February 4-20, snowfall occurs once every 4-5 days on average, most of which are light snow and moderate snow, the probability of heavy snow is low. These results can provide reference for making full advantage of snow resources, competition schedules planning and weather prediction during the Olympic Winter Games.
作者
徐庆喆
郑景云
张学珍
高西宁
郝志新
Xu Qingzhe Zheng Jingyun Zhang Xuezhen Gao Xining Hao Zhixin(College of Agronomy, Shenyang Agricultural University, Shenyang 110866, China Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Land Surface Pattern and Simulation Key Laboratory, Beijing 100101, China)
出处
《气候变化研究进展》
CSCD
北大核心
2017年第3期223-230,共8页
Climate Change Research
基金
中国科学院地理资源所特色研究所服务培育项目(TSYJS04)
中国科学院地理科学与资源研究所基金项目(2014RC101)
关键词
崇礼县
雪季
连续无降雪时段
冬奥会赛期
降雪特征
Chongli county
snow season
maximum spells without snowfall
the period planned for Olympic Winter Games
snowfall characteristics
