Variations of ULF-VLF electric fields in the external ionosphere over powerful typhoons in Pacific Ocean

Mikhailova, G. A.; Mikhailov, Yu. M.; Капустина, О. А.

doi:10.1016/s0273-1177(02)80358-1

Cited by 19 publications

(13 citation statements)

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“…A rise in the electromagnetic noise level and plasma density in the ionosphere over typhoons and hurricanes has been detected by LEO satellites [Mikhailova et al, 2000;Isaev et al, 2002Isaev et al, , 2010. Measurements on board the satellite Cosmos-1809 (at a height of ~800 km) have revealed localized disturbances of the quasi-stationary electric field up to 25 mV/m and concomitant variations in the electron density N e up to 6 % over regions with strong atmospheric disturbances [Sorokin et al, 2005].…”

Section: Introductionmentioning

confidence: 99%

Influence of the Vongfong 2014 Hurricane on the Ionosphere and Geomagnetic Field as Detected by Swarm Satellites: 2. Geomagnetic Disturbances

Martines-Bedenko

Pilipenko²,

Захаров

et al. 2019

Solar-Terrestrial Physics

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Strong meteorological disturbances in the atmosphere, accompanied by the generation of waves and turbulence, can affect ionospheric plasma and geomagnetic field. To search for these effects, we have analyzed electromagnetic measurement data from low-orbit Swarm satellites during flights over the typhoon Vongfong 2014. We have found that there are “magnetic ripples” in the upper ionosphere that are transverse to the main geomagnetic field fluctuations of small amplitude (0.5–1.5 nT) with a predominant period of about 10 s caused by small-scale longitudinal currents. Presumably, these quasiperiodic fluctuations are produced by the satellite’s passage through the quasiperiodic ionospheric structure with a characteristic scale of ~70 km induced by the interaction of acoustic waves excited by the typhoon with the E-layer of the ionosphere. In one of the flights over the typhoon, a burst of high-frequency noise (~0.3 Hz) was observed, which can be associated with the excitation of the ionospheric Alfven resonator by atmospheric turbulence.

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Section: Introductionmentioning

confidence: 99%

Influence of the Vongfong 2014 Hurricane on the Ionosphere and Geomagnetic Field as Detected by Swarm Satellites: 2. Geomagnetic Disturbances

Martines-Bedenko

Pilipenko²,

Захаров

et al. 2019

Solar-Terrestrial Physics

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“…Xiao et al, , 2012. In some papers, those authors found the possible response of TCs even in the topside ionosphere from Cosmos-1809 and Intercosmos 24 satellite observations (Mikhailova et al, 2000;Isaev et al, 2002Isaev et al, , 2012.…”

Section: Introductionmentioning

confidence: 99%

Meteorological effects in the lower ionosphere as based on VLF/LF signal observations

Рожной

Solovieva

Левин

et al. 2014

Nat. Hazards Earth Syst. Sci.

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Abstract. Very low and low frequency (VLF/LF) data recorded in the FarN) are investigated to study the meteorological effects in the lower ionosphere. The results demonstrate the sensitivity of the VLF/LF signals to the variations of atmospheric pressure, humidity, wind velocity and temperature, and the VLF/LF record at the station of Yuzhno-Kurilsk is found to be most sensitive to those variations of atmospheric parameters. The region under consideration is characterized by high winter cyclonic activity in mid-latitudes and strong summer and autumn typhoon activity in low latitudes. VLF/LF signal variations during eight tropical cyclones (TCs) with different intensity are considered. Negative nighttime anomalies in the signal amplitude that are most probably caused by TC activity are found for six events. Those anomalies are observed during 1-2 days when TCs move inside the sensitivity zones of the subionospheric paths. Perturbations of the VLF signal observed during two TCs can be caused by both the TC influence and seismic activity, but no correlation between TC intensity and magnitude of the signal anomalies is found. Spectral analysis of the typhoon-induced disturbed signals revealed the fluctuations with time periods in the range of 7-16 and 15-55 min that corresponds to the range of internal gravity waves periods.

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“…Burke et al (1992) reported the observations of AC electric fields $40 mV/m and correlated intensity bursts of upward magnetic field-aligned fluxes of 1 keV electrons over hurricane Debby. Mikhailova et al (2000) development. Data on DC electric fields with magnitudes up to 20 mV/m observed in the upper ionosphere over the tropical cyclone zone were presented by Isaev et al (2002a, b).…”

Section: Introductionmentioning

confidence: 99%

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

Сорокин

Isaev

Yaschenko

et al. 2005

Journal of Atmospheric and Solar-Terrestrial Physics

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Variations of ULF-VLF electric fields in the external ionosphere over powerful typhoons in Pacific Ocean

Cited by 19 publications

References 1 publication

Influence of the Vongfong 2014 Hurricane on the Ionosphere and Geomagnetic Field as Detected by Swarm Satellites: 2. Geomagnetic Disturbances

Influence of the Vongfong 2014 Hurricane on the Ionosphere and Geomagnetic Field as Detected by Swarm Satellites: 2. Geomagnetic Disturbances

Meteorological effects in the lower ionosphere as based on VLF/LF signal observations

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

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