摘要
利用国产极轨气象卫星FY3A的MERSI AOD产品分析2010—2013年广东省气溶胶光学厚度的分布规律。结果表明:MERSI AOD产品与地面太阳光度计实测数据的相关系数为0.72,其平均绝对值误差为0.12,均方根误差为0.15,数据精度可满足研究需要;从AOD的空间分布看,珠三角>西翼>东翼>山区五市,其中佛山市、东莞市、中山市为广东省AOD均值最高的地区,梅州市、河源市为广东省AOD均值最低的地区;从AOD的时间分布看,2010—2013年间,AOD呈现先升高后降低的趋势,2011年为拐点,与此同时,AOD还表现出明显的季节变化特征,春季为AOD高值期,夏季、秋季次之,冬季最低。
The aerosol optical thickness （AOD） in Ouangdong Province from 2010 to 2013 was discussed based on the MERSI AOD products of Chinese Polar Orbiting Meteorological Satellite FY3A. It is found that the correlation coefficient between the MERSI AOD products and the ground-based sun photometer measured AOD data is 0.72. The mean absolute error and the root mean square error of the MERSI AOD are 0.12 and 0. 15 respectively. So the MERSI AOD data meet the accuracy requirements of the paper. Spatially, a decreasing trend is found in order by Pearl River Delta Region, western region, eastern region and mountainous region. Among them, the mean AOD values are highest in Foshan City, Dongguan City and Zhongshan City, and lowest in Meizhou City and Heyuan City. Temporally, the AOD increases from 2010 to 2011 and then decreases from 2011 to 2013. What＇s more, spring has the highest seasonal mean AOD, followed in order by summer, autumn and winter.
出处
《气象》
CSCD
北大核心
2016年第1期61-66,共6页
Meteorological Monthly
基金
公益性行业(气象)科研专项(GYHY201306042)
广东省气象局科学技术研究项目(2011A04
2014B08)共同资助
