摘要
本文利用统计分析法、线性趋势分析法等方法对泰来县国家基本气象站近61a(1958-2108年)大风观测资料进行统计分析,分别分析了大风日数与风速的年际、季节、月度的变化特征。结果表明:近61a来,年际大风日数整体呈波动下降趋势,下降倾向率1.8d/10a;春季大风日数最多,占全年的66%,且月平均风速在4月也为全年最大值4.7m/s;年平均风速呈现与大风日数相似的波动下降趋势,1987年之前偏大,2001年之后逐渐减小,直至2010年后逐步稳定在3.1m/s左右;各季节平均风速表现为春季>秋季>冬季>夏季。
In this paper, the observational data of gale in Tailai County National Basic Meteorological Station in recent 61 years (1958-2108) are analyzed by means of statistical analysis and linear trend analysis. The interannual, seasonal and monthly variations of gale days and wind speed are analyzed respectively. The results show that in the past 61 years, the number of days of interannual gale has shown a downward trend with a downward trend of 1.8 d/10a. The number of gale days in spring is the largest, accounting for 66% of the whole year, and the monthly average wind speed in April is also the maximum of 4.7 m/s in the whole year. The annual average wind speed showed a downward trend similar to the number of gale days, which was larger before 1987, decreased gradually after 2001, and stabilized at about 3.1 m/s after 2010. The average wind speed in each season was spring > autumn > winter > summer.
作者
史国庆
劳俊梅
王力艳
SHI Guo-qing;LAO Jun-mei;WANG Li-yan(Tailai County Meteorological Bureau, Heilongjiang Tailai 162400;Sui hua meteorological Bureau,Heilongjiang Suihua 152002)
出处
《黑龙江气象》
2019年第2期4-5,14,共3页
Heilongjiang Meteorology
关键词
大风日数
风速
变化特征
Days of gale
wind speed
variation characteristics
