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Chinese Agricultural Science Bulletin
2015,31
(32)
194-198
潍坊春季终雪日气候统计特征分析
作 者：
张芹;徐凤霞;王善芳;韩晓;张秀珍
单 位：
山东省寿光市气象局;山东省潍坊市气象局
关键词：
终雪日;统计分析;时空分布;降水相态
摘 要：
为了更好地分析和研究潍坊春季降雪的气候特征,从而提高春季降雪的预报准确率,更好地服务于当地的气象防灾减灾工作,利用潍坊10个气象观测站2004—2013年的冬半年逐日降水资料及MICAPS常规气象观测资料,对潍坊地区终雪日的时空分布、影响系统及终雪日降水量级等进行统计分析。结果表明:(1)潍坊终雪日呈现出逐渐变晚趋势,以每年3.69天的速率增长,终雪日的空间分布特点不是很明显。(2)回流类终雪过程出现次数最多,其次是低槽冷锋类,冷流降雪类终雪过程和气旋降雪类过程出现的次数最少。(3)潍坊终雪过程降雪量级主要是小雪,降水相态可以是纯雪,也有可能是雨夹雪,而出现较大极值的降雪过程,降水相态则为雨转雪或是雨转雨夹雪。
译 名：
Analysis of Climatic Statistical Characteristics of the Spring Final Snow Day in Weifang
作 者：
Zhang Qin;Xu Fengxia;Wang Shanfang;Han Xiao;Zhang Xiuzhen;Weifang Meteorological Bureau;Shouguang Meteorological Bureau;
关键词：
final snow day;;statistical analysis;;temporal and spatial distribution;;precipitation phase
摘 要：
In order to better analyze the climate characteristics of spring final snow day in Weifang, therebyimprove the accuracy of forecasting spring snow and better serve the local meteorological disaster preventionand mitigation, spatial and temporal distribution of the final snow day, affecting system and the final level ofdaily precipitation were analyzed using the data of daily rainfall of 2004-2013 winter half-year in Weifang andMICAPS routine meteorological data. The results showed that:(1) the trend of the final snow day was graduallypostponed at an annual rate of 3.69 days; the final day of the spatial distribution of snow was not very obvious;(2) there were most occurrences of reflow process final snow, followed by a cold front trough type, the number ofcold current snowfall process and cyclones was the least;(3) the order of magnitude of the process of the finalsnow day was mainly snow, the precipitation phase might be pure snow or sleet, but for the emergence snowfallof greater extremes, the precipitation phase was rain to snow or rain and sleet.
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