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首页> 外文会议>International symposium on atmospheric and ocean optics/atmospheric physics >Ionosphere effects of tropical cyclones over the Asian region of Russia according to oblique radio-sounding data
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Ionosphere effects of tropical cyclones over the Asian region of Russia according to oblique radio-sounding data

机译：根据倾斜的无线电探测数据，热带气旋对俄罗斯亚洲地区的电离层效应

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The possibility of manifestation of tropical cyclones in variations of ionospheric parameters in the zone far removed from the disturbance source region has been studied. The data from frequency analysis by maximal observed frequencies (MOF) for the oblique sounding (OS) signals were used. We revealed 1-5 h time intervals with higher oscillation energetics along the Norilsk-Irkutsk, Magadan-Irkutsk, and Khabarovsk-Irkutsk paths (Eastern Siberia and the Far East of Russia) during equinoctial periods (March, September 2005-2011), in November, 2005 and in summer 2010-2011 for different periods of the solar cycle. These time intervals may be interpreted as a manifestation of large-scale traveling ionospheric disturbances (TIDs) whose sources are atmospheric internal gravity waves. By jointly analyzing ionospheric, heliomagnetic, atmospheric, and satellite data on tropical cyclones (TCs), we attempted to associate the series of the revealed TIDs with ionospheric responses to TCs over the Western North Pacific Ocean during the above periods. A significant increase in wave disturbances on OS paths was established to be noted during active tropical cyclogenesis periods in autumn months. For spring equinox (March, 2005-2011), we also note TID manifestations in MOF time variations under quiet heliomagnetic conditions and in TC absence, but the intensity of these wave disturbances was significantly lower, than that of autumn seasons for various years. We estimated the wavelike disturbance propagation velocity by the delay time of TID passing the medium points of the spaced OS paths.
机译：研究了远离干扰源区域的区域中电离层参数变化中热带气旋表现的可能性。使用了通过对倾斜探测（OS）信号的最大观测频率（MOF）进行频率分析得到的数据。我们揭示了等时（2005年3月，2005年2011年9月）沿诺里尔斯克-伊尔库茨克，马加丹-伊尔库茨克和哈巴罗夫斯克-伊尔库茨克路径（东西伯利亚和俄罗斯远东）的1-5 h时间间隔。 2005年11月和2010-2011年夏季分别用于太阳周期的不同时期。这些时间间隔可以解释为源于大气内部重力波的大规模行进电离层扰动（TID）的表现。通过联合分析热带气旋（TC）上的电离层，日磁，大气和卫星数据，我们试图将上述揭示的TID系列与上述期间北太平洋西部电离层对TC的电离层响应联系起来。确定在秋季秋季活跃的热带气旋作用期间，OS路径上的波扰动将显着增加。对于春分（2005年3月至2011年3月），我们还注意到在安静的日磁条件下和TC不存在的情况下MOF时间变化中的TID表现，但这些波扰动的强度明显低于多年的秋季。我们通过经过间隔的OS路径的中点的TID的延迟时间来估计波状扰动的传播速度。

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