气候变化领域集成服务门户(CCPortal): The lower ionosphere disturbances observed during the chain of the meteotsunamis in the Mediterranean Sea in June 2014

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DOI	10.1007/s11069-020-04223-1
	The lower ionosphere disturbances observed during the chain of the meteotsunamis in the Mediterranean Sea in June 2014
	Solovieva M.; Rozhnoi A.; Shalimov S.; Shevchenko G.; Biagi P.F.; Fedun V.
发表日期	2021
ISSN	0921030X
起始页码	1383
结束页码	1396
卷号	106 期号:2
英文摘要	In June 2014, a number of meteotsunamis were detected in the Mediterranean and Black Sea area. These meteotsunamis were initiated by a unique high-altitude dynamical system which was initially originated above Spain and traveled across the Mediterranean Sea towards Black Sea and Turkey. Meteotsunamis unlike tsunamis driven by strong earthquakes are local events, and their formation has different mechanism. Atmospheric internal gravity waves (IGWs) are one of the main known sources of meteotsunamis (e.g. Vilibić et al. in Pure Appl Geophys 165:2169–2195, 2008). The synoptic system produced short-lived and small-scale atmospheric pressure perturbations which drifted with the jet stream-like bubbles and generated tsunami-like waves in the open waters. The bubbles with typical dimensions 15–60 km continuously form and collapse in the atmosphere at altitudes of 3–6 km. Such a “boiled” atmosphere generated IGWs propagating both downward, where they produced meteotsunamis (presumably under Proudman resonance condition) and upward into the ionosphere, with following dissipation and excitation of plasma density perturbations. One of the few experimental techniques, which can monitor perturbations of the ionization within the lower ionosphere, uses long-wave probing by very low and low frequency (VLF/LF) radio signals. To study the ionospheric disturbances observed during the chain of meteotsunamis affecting the Mediterranean Sea, we used VLF/LF data collected in South Europe by “The International Network for Frontier Research on Earthquake Precursors”. By applying the spectral analysis method to the anomalous VLF/LF signals, it was found that revealed periods of the signal variations were from 10 to 40–70 min in different stations, which are in the range of the atmospheric pressure oscillations and the meteotsunami events. These periods also correspond to the periods of IGWs. © 2020, Springer Nature B.V.
关键词	Lower ionospheric disturbances Meteotsunami Radio wave propagation
英文关键词	atmospheric pressure; gravity wave; ionosphere; signal processing; tsunami event; wave propagation; Europe; Mediterranean Sea; Meleagris gallopavo; Varanidae
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206576
作者单位	Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russian Federation; Space Research Institute, Russian Academy of Sciences, Moscow, Russian Federation; Institute of Marine Geology and Geophysics FEB RAS, Yuzhno-Sakhalinsk, Russian Federation; Department of Physics, University of Bari, Bari, Italy; Inter-Department Centre for the Evaluation and Mitigation of the Volcanic and Seismic Risk, University of Bari, Bari, Italy; Space Systems Laboratory, Department of Automatic Control and Systems Engineering, University of Sheffield, Sheffield, United Kingdom
推荐引用方式 GB/T 7714	Solovieva M.,Rozhnoi A.,Shalimov S.,et al. The lower ionosphere disturbances observed during the chain of the meteotsunamis in the Mediterranean Sea in June 2014[J],2021,106(2).
APA	Solovieva M.,Rozhnoi A.,Shalimov S.,Shevchenko G.,Biagi P.F.,&Fedun V..(2021).The lower ionosphere disturbances observed during the chain of the meteotsunamis in the Mediterranean Sea in June 2014.Natural Hazards,106(2).
MLA	Solovieva M.,et al."The lower ionosphere disturbances observed during the chain of the meteotsunamis in the Mediterranean Sea in June 2014".Natural Hazards 106.2(2021).