CAJ | 학술논문

利用1961～2005年台湾海峡西部沿岸平潭、崇武、东山及厦门等4个气象代表站的地面风观测资料,通过计算各代表站的年、季、月平均风速气候趋势系数和各风向频率趋势,较详细地分析了近45a来台湾海峡西部沿岸地面风的气候变化特征.结果表明:(1)近45a来各代表站年平均风速呈明显减小趋势,其中秋、冬、春季平均风速减小趋势明显,夏季风速减小趋势不明显.(2)海峡西部沿岸主导风向有沿海岸线由北向南顺转的特点.(3)海峡西部沿岸地面风速在上世纪80年代初存在着气候突变现象,80年代中期后年平均风速减小明显.
이용1961～2005년태만해협서부연안평담、숭무、동산급하문등4개기상대표참적지면풍관측자료,통과계산각대표참적년、계、월평균풍속기후추세계수화각풍향빈솔추세,교상세지분석료근45a래태만해협서부연안지면풍적기후변화특정.결과표명:(1)근45a래각대표참년평균풍속정명현감소추세,기중추、동、춘계평균풍속감소추세명현,하계풍속감소추세불명현.(2)해협서부연안주도풍향유연해안선유북향남순전적특점.(3)해협서부연안지면풍속재상세기80년대초존재착기후돌변현상,80년대중기후년평균풍속감소명현.
With observation data of surface wind from 4 representative stations,Pingtan,Chongwu,Dongshan and Xiamen,on the west coast of Taiwan Strait,the climate tendency coefficient of annual,seasonal and monthly average wind speed and wind direction frequency tendency were calculated.The effect of climate change on surface wind at west coast of Taiwan Strait in recent 45 years was analyzed in details.The result showed that (1) the annual average wind speed weakened obviously at all stations in recent 45 years,particularly in autumn,winter and spring except for summer.(2) The predominant wind direct veered from north to south along the west coast.(3) There was climate jump of surface wind in the early 1980s,and annual average wind speed weakened obviously after the middle 1980s.