一次台风过程大气波导特征分析  

Characteristics Analysis of Atmospheric Duct Affected by Typhoon

作　　者：王振会[1] 郝晓静[1] 张玉生 吴维[3] 

机构地区：[1]南京信息工程大学遥感学院,江苏南京210442 [2]中国电磁波传播研究所,山东青岛266107 [3]中国白城兵器试验中心,吉林白城137001

出　　处：《安徽农业科学》2009年第3期1198-1200,共3页Journal of Anhui Agricultural Sciences

摘　　要：在介绍大气折射和大气波导类型的基础上,分析了3类大气波导形成的气象条件。以出现在南京地区的大气波导为例,从探空资料、天气图和NCEP再分析资料出发,对受台风影响的大气波导特征进行了综合分析;对湿度场和散度场分析表明,湿度递减以及辐散下沉运动是大气波导发生的主要原因。Three types of formation mechanisms of atmospheric duct were analyzed based on the introduction of basic types of atrnospheric refraction and their effects on electromagnetic wave.An atmospheric duct which appeared in Nanjing affected by typhoon was analyzed by using the NCEP data, weather map and the sounding data in this area. The humidity fields and the divergence field changes showed that this atmospheric.ospheric duct was caused by the decrease of the humidity with the height and divergence subsidence.

关 键 词：大气波导 天气系统 台风 气象要素 

分 类 号：S161.7[农业科学—农业气象学]