人工电离层洞形态调制及其对短波传播的影响  

Morphological control of artificial ionospheric hole and its short-wave propagation effects

作　　者：胡耀垓[1] 赵正予[1] 项薇[1] 张援农[1] 

机构地区：[1]武汉大学电子信息学院,武汉430079

出　　处：《物理学报》2011年第9期862-872,共11页Acta Physica Sinica

基　　金：国家高技术研究发展计划(批准号:2009AA8093202);中国博士后科学基金(批准号:20080430988;200801321);中央高校基本科研业务费专项资金(批准号:3103001)资助的课题~~

摘　　要：本文在电离层中性气体点源扩散近似解的基础上,给出了多源释放动力学模型.分析了释放物质、释放高度、释放模式和释放量等因素对人工电离层洞形态调制的影响,并利用电离层短波三维数字射线追踪技术,对不同调制电离层洞的电波传播效应进行了数值模拟和分析.As one of important and effective means for modifying the ionosphere, chemical release can produce artificial ionospheric holes attributed to ionization depletion, which also greatly affect the short-wave propagation. In this paper, a neural gas multi-point release dynamics model is proposed baseed on mono-point one, and then the morphological control effects of chemical substances, releasing altitude, releasing mode and mass on artificial ionospheric hole are discussed. Furthermore, the short-wave propagation effect of artificial ionospheric hole is simulated and investigated by the 3-D numerical ray tracing.

关 键 词：化学物质释放 人工电离层洞 形态调制 电波传播效应 

分 类 号：P421.34[天文地球—大气科学及气象学]