摘要
利用2005—2021年OMI传感器大气气溶胶光学厚度产品,分析了汾渭平原四季气溶胶光学厚度的时空分布特征、变化趋势特征及气象因素对气溶胶光学厚度变化趋势的贡献.结果表明:①研究期内汾渭平原的气溶胶光学厚度趋势变化整体以下降为主,四季变化特征存在空间差异;除秋季外,其他季节在2013年具有明显的趋势相位变化信号.②基于逐步回归方法分析发现,风速和降水是导致气溶胶光学厚度呈现长期变化趋势的主要原因,而温度和相对湿度的影响较小.③不同气象因素贡献在四个季节存在显著的空间差异.
Based on the Aura satellite/Ozone Monitoring Instrument(OMI)sensor aerosol optical depth(AOD)dataset spanning from 2005 to 2021,the spatio-temporal distribution characteristics,variation trend characteristics of aerosol optical thickness in the four seasons in the Fenwei Plain were analyzed,and the influence of meteorological factors on AOD fluctuations was analyzed.The results show that the overall trend of AOD variation in the Fenwei Plain is mainly downward during the study period,and there are spatial differences in the characteristics of seasonal variation.Except for autumn,other seasons have obvious trend phase change signals in 2013.Based on stepwise regression analysis,it is found that wind speed and precipitation are the main reasons for the long-term variation trend of AOD,while temperature and relative humidity have a relatively small impact.The contributions of different meteorological factors have significant spatial differences in the four seasons.
作者
马丽
胡桃花
陈玲
高慧荣
杨青
余丽萍
MA Li;HU Taohua;CHEN Ling;GAO Huirong;YANG Qing;YU Liping(Jinzhong Meteorological Bureau of Shanxi Province,Jinzhong 030600,Shanxi China;Shanxi Institute of Meteorological Science,Taiyuan 030002,China;Cloud Physics Field Scientific Experiment Base in Mount Wutai of China Meteorological Administration,Taiyuan 030002,China)
出处
《河南科学》
2024年第12期1809-1819,共11页
Henan Science
基金
山西省基础研究计划(20210302124202)
山西省气象局面上项目(SXKMSDW20236333)。
关键词
汾渭平原
气溶胶光学厚度
分布特征
气象因素
贡献
Fenwei Plain
aerosol optical depth
distribution characteristics
meteorological factors
contribution
