On the simulation of backscatter ionograms
On the simulation of backscatter ionograms
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DOI：
10.1016/s1364-6826(97)00038-2
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发表时间：
1997-11
影响因子：
1.9
通讯作者：
C. Coleman
中科院分区：
文献类型：
--
作者：
C. Coleman
提出了一种模拟后向散射电离图的算法。通过通过由查普曼层组成的电离层(根据CCIR和URSI图得出的主要层参数)的数值射线跟踪来评估传播。对各种模型电离层(包括一些水平结构变化很大的电离层，如赤道异常)进行了模拟，发现它们再现了真实电离图的许多重要特征。该算法包括来自场向不规则的后向散射，这一机制被发现对极光后向散射有很大的贡献。
An algorithm for the simulation of backscatter ionograms is developed. Propagation is evaluated by numerically ray tracing through an ionosphere consisting of Chapman layers (major layer parameters derived from CCIR and URSI maps). Simulations are performed for a variety of model ionospheres (including some with strongly varying horizontal structure such as the equatorial anomaly) and are found to reproduce many important features of real ionograms. The algorithm includes backscatter from field-aligned irregularities and this mechanism is found to make substantial contributions to auroral backscatter.