Radar auroral substorm signatures, 1. Expansive and recovery phases
Radar auroral substorm signatures, 1. Expansive and recovery phases
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雷达极光亚暴特征，1. 扩展和恢复阶段
DOI：
10.1029/ja081i034p06148
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发表时间：
1976
期刊：
影响因子：
--
通讯作者：
E. Fremouw
中科院分区：
文献类型：
--
作者：
R. Tsunoda;E. Fremouw
与极光亚暴的概念类似，工作人员最近试图将雷达极光描述为一系列雷达极光亚暴。迄今为止，所有的雷达亚暴特征都是出现在固定波束雷达数据的距离-时间-强度图上的特征。然而，由于固定波束雷达只能沿一维（距离）探测，通常很难根据物理过程来解释这些雷达特征。在本文中，我们提出了三个二维雷达亚暴特征与相控阵雷达运行在荷马，阿拉斯加。我们表明，所有三个雷达特征都与极光亚暴的膨胀和/或恢复阶段密切相关。另外两种雷达亚风暴特征，只能通过快速扫描相控阵雷达检测到，在一篇配套论文中提出（Tsunoda和Fremouw， 1976）。
In analogy to the auroral substorm concept, workers have recently attempted to describe the radar aurora as a sequence of radar auroral substorms. All of the radar substorm signatures to date have been characteristic features that appear on range-time-intensity plots of fixed beam radar data. However, because fixed beam radars are capable of probing along only one dimension (range), it is often difficult to interpret those radar signatures in terms of physical processes. In this paper we present three two-dimensional radar substorm signatures obtained with a phased array radar operated at Homer, Alaska. We show that all three of the radar signatures are closely associated with the expansive and/or recovery phases of auroral substorms. Two other radar substorm signatures, which can be detected only by a rapid scan phased array radar, are presented in a companion paper (Tsunoda and Fremouw, 1976).