CAJ | 학술논문

小洋山岛位于上海东南面距海岸线约30 km处,四面环海,研究其上空的大气气溶胶光学特性对了解我国东部沿海地区及其近海海域的环境和气候影响等都具有重要的意义.对于近岸海岛的气溶胶光学厚度(AOD)观测,至今国内尚未见这方面的实测资料与分析.本次实验利用2006～2007年连续观测得到的AOD值,分析了AOD的季节变化及其与地面风向、湿度和能见度等气象要素的关系,并给出了气溶胶消光谱.分析发现:小洋山地区AOD具有春季最大,冬季次之,秋季较小的特点,而且在低能见度情况下,气溶胶以大粒子为主;盛行西风时,AOD值增大且大粒子比重增加;AOD与湿度有较好的正相关关系.
소양산도위우상해동남면거해안선약30 km처,사면배해,연구기상공적대기기용효광학특성대료해아국동부연해지구급기근해해역적배경화기후영향등도구유중요적의의.대우근안해도적기용효광학후도(AOD)관측,지금국내상미견저방면적실측자료여분석.본차실험이용2006～2007년련속관측득도적AOD치,분석료AOD적계절변화급기여지면풍향、습도화능견도등기상요소적관계,병급출료기용효소광보.분석발현:소양산지구AOD구유춘계최대,동계차지,추계교소적특점,이차재저능견도정황하,기용효이대입자위주;성행서풍시,AOD치증대차대입자비중증가;AOD여습도유교호적정상관관계.
Xiaoyangshan Isle, approximately 30 km southeast coast of Shanghai, is surrounded by East China sea. The study of atmospheric aerosol optical characteristics over this region is important for understanding the effect on environment and climate in East Coast of China and its offing. The observation and analysis of the aerosol optical depth (AOD) data for isle near the coast are few in China untill now. The authors used the observed data from 2006 to 2007 to analyze the characteristics of AOD, such as its seasonal variation, the correlation of AOD with surface winds, relative humidity and visibility, etc, and the spectral distributions of AOD are given. The results show that the AOD over Xiaoyangshan isle is the largest in spring, less in winter, and the smallest in autumn. The aerosol is composed of larger particles in low visibility and more larger particles appear in west wind. The AOD and relative humidity have a positive correlation.