NOAA-AVHRR多通道卫星资料在辽东半岛地区大雾监测中的应用  

Application of NOAA-AVHRR Multi-channel Satellite Data in Fog Monitoring in Liaodong Peninsula

作　　者：王囝囝[1] 邹善勇[1] 刘晓初[1] 

机构地区：[1]辽宁省大连市气象局,辽宁大连116001

出　　处：《安徽农业科学》2016年第12期236-239,共4页Journal of Anhui Agricultural Sciences

摘　　要：基于NOAA-AVHRR多通道资料,统计分析了白天和夜间可见光通道、中红外通道及热红外通道下晴空地表、雾区、云区等地物的通道光谱特征,总结了白天和夜间雾区识别的一些指标,利用统计分析方法结合一定的图形处理方法对雾区进行自动识别。最后对2014年4月8日一次大雾天气过程进行了试验,雾区识别的结果与地面观测结果比较一致,表明该方法对识别雾区有一定作用,但对夜间的轻雾不能进行有效识别。This paper analyzes characteristics of optical spectrum under clear air,fog,cloud regions at channels of visual light,intermediate infrared and thermal infrared at daytime and nighttime based on NOAA-AVHRR multi-channel satellite data.Moreover,this paper concludes indices for identifying fog at daytime and nighttime by using statistical method along with graphic processing method.Finally,a test for fog event occurred on 8th April 2014 is performed.The result consists with observations.It indicates the method derived has limited use in identifying fog region,but is not effective in identifying nighttime light fog.

关 键 词：NOAA 卫星资料 大雾监测 辽东半岛 

分 类 号：S164[农业科学—农业气象学]