近32a安徽省风速、风向分布特征
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摘要
基于安徽省1981~2012年近32 a风速、风向资料,利用常规气象统计方法,分析了安徽省平均风速、最大风速以及极大风速的空间分布特征,重点分析了最大风速易出现的方位、季节以及各重现期下的风速分布。结果表明:平均风速与最大风速的空间分布相似,大别山区和皖南山区低海拔地区为风速低值区,黄山以及大别山区以北和以东的平原和丘陵地区为风速大值区。除大别山区北部和皖南山区南部的部分地区外,近32 a全省大部风速普遍呈现显著减少趋势。长江以北地区的最大风速出现偏西风的频率最高,大别山区和皖南山区最大风速出现频率最高的方位空间差异明显。此外,最大风速出现在春季的频率最高。
Based on the wind speed and direction data in Anhui Province from 1981 to 2012,the spatial distributions of average wind speed,maximum 10- minute average wind speed and maximum instantaneous wind speed were analyzed by using statistical methods,especially for on the direction,seasonal variations and spatial distribution in 30,50,100 years of the maximum 10- minute average wind speed. The results showed that the spatial distribution of average wind speed was similar with the maximum 10- minute average wind speed,and the values of wind speed in mountainous region of the Dabie Mountain and southern Anhui with low altitude were low,while the plains and hills area in the north and east of the Dabie Mountain and the Yellow Mountain were high. The wind speed generally showed a significant decreasing trend in Anhui Province during 1981- 2012 except for the parts in north of the Dabie Mountain and south of mountainous area in southern Anhui. For the direction of the maximum 10- minute average wind,the frequency of westerly wind was the highest in the north of the Yangtze River,and the most occurrence directions in mountainous area of the Dabie Mountain and southern Anhui were different significantly. Moreover,the maximum wind speed occurred most frequently in spring,especially in March.
Based on the wind speed and direction data in Anhui Province from 1981 to 2012,the spatial distributions of average wind speed,maximum 10- minute average wind speed and maximum instantaneous wind speed were analyzed by using statistical methods,especially for on the direction,seasonal variations and spatial distribution in 30,50,100 years of the maximum 10- minute average wind speed. The results showed that the spatial distribution of average wind speed was similar with the maximum 10- minute average wind speed,and the values of wind speed in mountainous region of the Dabie Mountain and southern Anhui with low altitude were low,while the plains and hills area in the north and east of the Dabie Mountain and the Yellow Mountain were high. The wind speed generally showed a significant decreasing trend in Anhui Province during 1981- 2012 except for the parts in north of the Dabie Mountain and south of mountainous area in southern Anhui. For the direction of the maximum 10- minute average wind,the frequency of westerly wind was the highest in the north of the Yangtze River,and the most occurrence directions in mountainous area of the Dabie Mountain and southern Anhui were different significantly. Moreover,the maximum wind speed occurred most frequently in spring,especially in March.
引文
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[16]张涛涛,延军平,李双双.气候变化对晋西北地区风能资源的影响[J].干旱气象,2012,30(2):202-206.
[17]董安祥,蔡忠兰,方锋,等.2009-2010年河西走廊大风日低空垂直切变和湍流统计特征[J].干旱气象,2014,32(2):270-274.
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[20]QX/T51-2007.地面气象观测规范:风向和风速观测[S].
[2]周淑贞,余碧霞.上海城市对风速的影响[J].华东师范大学学报,1988(3):67-76.
[3]李艳,王元,储惠芸,等.中国陆域近地层风能资源的气候变异和下垫面人为改变的影响[J].科学通报,2008,53(21):2646-2653.
[4]杨大升.北京低层高空的风速分布[J].气象学报,1957,28(3):185-197.
[5]王海霞,张宏升,潘江勇,等.银川河东机场低空风切变特征及环流背景分析[J].干旱气象,2012,30(1):45-52.
[6]杨洪儒,王楠.地窝堡机场东南大风特征及其大气结构[J].干旱气象,2014,32(3):393-398.
[7]任国玉,郭军,徐铭志,等.近50年中国地面气候变化基本特征[J].气象学报,2005,63(6):942-956.
[8]Xu Ming,Chang Chih-pei,Fu Congbin,et al.Steady decline of East Asian monsoon winds,1969-2000:Evidence from direct ground measurements of wind speed[J].J Geophys Res,2006,111:1-8.
[9]江滢,罗勇,赵宗慈.近50年我国风向变化特征[J].应用气象学报,2008,19(6):666-672.
[10]李艳,耿丹,董新宁,等.1961—2007年重庆风速的气候变化特征[J].大气科学学报,2010,33(3):336-340.
[11]陈兵,邱辉,赵巧华.江苏省年最大风速的时空分布及突变分析[J].气象科学,2010,30(2):214-220.
[12]毛飞,卢志光,郑凌云,等.近40年那曲地区日照时数和风速变化特征[J].气象,2006,32(9):77-83.
[13]龚宇,邢开成,王璞.近30年来沧州地区日照时数与风速变化特征[J].中国农业气象,2007,28(3):263-267.
[14]魏文秀,张欣,田国强.河北霾分布与地形和风速关系分析[J].自然灾害学报,2010,19(1):49-52.
[15]王毅荣,张存杰.河西走廊风速变化及风能资源研究[J].高原气象,2006,25(6):1196-1202.
[16]张涛涛,延军平,李双双.气候变化对晋西北地区风能资源的影响[J].干旱气象,2012,30(2):202-206.
[17]董安祥,蔡忠兰,方锋,等.2009-2010年河西走廊大风日低空垂直切变和湍流统计特征[J].干旱气象,2014,32(2):270-274.
[18]潘冬梅,田忠锋.近50a阿勒泰地区大风的环流分型及预报[J].干旱气象,2014,32(1):108-113.
[19]阎访,周顺武,马悦.石家庄春季大风变化特征及天气分型[J],干旱气象,2014,32(2):207-214.
[20]QX/T51-2007.地面气象观测规范:风向和风速观测[S].
目录
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