Strong DC electric field formation in the low latitude ionosphere over typhoons

Сорокин, В. М.; Isaev, N. K.; Yaschenko, A.K.; Chmyrev, V. M.; Hayakawa, Masashi

doi:10.1016/j.jastp.2005.06.014

Cited by 61 publications

(43 citation statements)

References 19 publications

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“…Such electric fields have been reported from satellite observations both over storm and hurricane regions (Sorokin et al, 2005b;Isaev et al, 2006). Our plans for future work include accumulation of statistics from other satellites, with subsequent statistical analysis.…”

Section: Discussionsupporting

confidence: 60%

Quasi-static electric fields phenomena in the ionosphere associated with pre- and post earthquake effects

Gousheva

Danov

Hristov

et al. 2008

Nat. Hazards Earth Syst. Sci.

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Abstract. To prove a direct relationship between the quasi-static electric field disturbances and seismic activity is a difficult, but actual task of the modern ionosphere physics. This paper presents new results on the processing and analysis of the quasi-static electric field in the upper ionosphere (h=800-900 km) observed from the satellite INTERCOSMOS-BULGARIA-1300 over earthquakes' source regions (seismic data of World Data Center, Denver, Colorado, USA). Present research focuses on three main areas (i) development of methodology of satellite and seismic data selecting, (ii) data processing and observations of the quasi-static electric field (iii) study and accumulation of statistics of possible connection between anomalous vertical electric fields penetrating from the earthquake zone into the ionosphere, and seismic activity. The most appropriate data (for satellite orbits above sources of forthcoming or just happened seismic events) have been selected from more than 250 investigated cases.The increase of about 5-10-15 mV/m in the vertical component of the quasi-static electric field observed by INTERCOSMOS-BULGARIA-1300 during seismic activity over Southern Ocean, Greenland Sea, South-Weat Pacific Ocean, Indian Ocean, Central America, South-East Pacific Ocean, Malay Archipelago regions are presented. These anomalies, as phenomena accompanying the seismogenic process, can be considered eventually as possible pre-, co-(coeval to) and post-earthquake effects in the ionosphere.

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Section: Discussionsupporting

confidence: 60%

Quasi-static electric fields phenomena in the ionosphere associated with pre- and post earthquake effects

Gousheva

Danov

Hristov

et al. 2008

Nat. Hazards Earth Syst. Sci.

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show abstract

“…Huang et al [7], Xiao et al [8] and Xiao et al [9] all came to the conclusion that typhoon could affect the ionosphere according to their Doppler observations. Isaev et al [10] and Sorokin et al [11] also analyzed the electric field changes in the low-latitude ionosphere during typhoons. Their analysis showed that the electric field in the low-latitude ionosphere has a larger increase, which had an important impact on the ionosphere.…”

mentioning

confidence: 99%

Effects of typhoon Matsa on ionospheric TEC

et al. 2009

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The effects of typhoon Matsa on the ionosphere are studied by using GPS-TEC data observed at about 50 GPS stations. It is shown that the ionosphere has been already influenced and TEC tends to increase before the landing of Matsa, and the difference of TEC from its monthly median over the typhoon area is about 5 TECU. With the landing of Matsa, both the magnitude and the area of increased TEC decrease. One day after the landing of Matsa, TEC reaches its minimum and is lower than the monthly median. In comparison of TEC along the typhoon's path with that along three reference paths far from the typhoon, it is found that typhoon's impact on TEC can be fully distinguished. The evolution of TEC variation has the same tendency as reported typhoon-induced foF2.typhoon Matsa, ionosphere, GPS, coupling, TEC map Citation:

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“…Additionally, other sources, e.g. typhoon (Sorokin et al, 2005), which can cause similar ionospheric disturbances, should be carefully analyzed and then excluded.…”

Section: The Network Of Ground Based High-resolution Ionospheric Obsementioning

confidence: 99%

<i>Brief communication</i> "Monitoring ionospheric variations before earthquakes using the vertical and oblique sounding network over China"

Zhao

et al. 2011

Nat. Hazards Earth Syst. Sci.

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Abstract. The problem of earthquake prediction has stimulated the research for correlation between seismic activity and ionospheric anomaly. Many observations have shown the existence of anomaly of critical frequency of ionospheric F-region, foF2, before earthquake onset. Ionospheric sounding has been conducted routinely for more than 60 years in China by the China Research Institute of Radiowave Propagation (CRIRP), and deveoloped a very powerful ability to observe the ionosphere. In this paper, we briefly describe the anomalous variation of the foF2 before M s 8.0 Wenchuan earthquake (occurred on 12 May 2008 at 14:28 LT; 31.00 • N, 103.40 • E), which is a sign of the great interest arising in the seismo-ionospheric investigation of Chinese researchers. Furthermore, we introduce the routine work on seismoionospheric anomaly by the ground based high-resolution ionospheric observation (GBHIO) network comprising 5 vertical and 20 oblique sounding stations.

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Strong DC electric field formation in the low latitude ionosphere over typhoons

Cited by 61 publications

References 19 publications

Quasi-static electric fields phenomena in the ionosphere associated with pre- and post earthquake effects

Quasi-static electric fields phenomena in the ionosphere associated with pre- and post earthquake effects

Effects of typhoon Matsa on ionospheric TEC

<i>Brief communication</i> "Monitoring ionospheric variations before earthquakes using the vertical and oblique sounding network over China"

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Strong DC electric field formation in the low latitude ionosphere over typhoons

Cited by 61 publications

References 19 publications

Quasi-static electric fields phenomena in the ionosphere associated with pre- and post earthquake effects

Quasi-static electric fields phenomena in the ionosphere associated with pre- and post earthquake effects

Effects of typhoon Matsa on ionospheric TEC

&lt;i&gt;Brief communication&lt;/i&gt; &quot;Monitoring ionospheric variations before earthquakes using the vertical and oblique sounding network over China&quot;

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<i>Brief communication</i> "Monitoring ionospheric variations before earthquakes using the vertical and oblique sounding network over China"