Search Results - "Parrot, Michel"

Statistical analysis of an ionospheric parameter as a base for earthquake prediction by Li, Mei, Parrot, Michel

“…This paper is related to the use of ionospheric density variations to tentatively predict earthquakes. The results of this statistical analysis are presented…”
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Statistical analysis of automatically detected ion density variations recorded by DEMETER and their relation to seismic activity by Michel Parrot

“…Many examples of ionospheric perturbations observed during large seismic events were recorded by the low-altitude satellite DEMETER. However, there are also…”
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Additional attenuation of natural VLF electromagnetic waves observed by the DEMETER spacecraft resulting from preseismic activity by Píša, David, Němec, František, Santolík, Ondřej, Parrot, Michel, Rycroft, Michael

“…We use VLF electromagnetic wave data measured by the DEMETER (Detection of Electro‐Magnetic Emissions Transmitted from Earthquake Regions) satellite at an…”
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Observation of ionospherically reflected quasiperiodic emissions by the DEMETER spacecraft by Hanzelka, Miroslav, Santolík, Ondřej, Hajoš, Mychajlo, Němec, František, Parrot, Michel

“…Quasiperiodic (QP) electromagnetic emissions are whistler mode waves at typical frequencies of a few kHz characterized by a periodic time modulation of their…”
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Chorus and chorus‐like emissions seen by the ionospheric satellite DEMETER by Parrot, Michel, Santolík, Ondřej, Nĕmec, František

“…A lot of different emissions have been detected by the low‐altitude satellite DEMETER (Detection of Electro‐Magnetic Emissions Transmitted from Earthquake…”
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Special issue of Planetary and Space Science ‘DEMETER’ by Parrot, Michel

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On the use of ELF/VLF emissions triggered by HAARP to simulate PLHR and to study associated MLR events by Parrot, Michel, Němec, Frantisěk, Cohen, Morris B., Gołkowski, Mark

“…A spectrogram of Power Line Harmonic Radiation (PLHR) consists of a set of lines with frequency spacing corresponding exactly to 50 or 60 Hz. It is distinct…”
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Variations in Energetic Particle Fluxes around Significant Geomagnetic Storms Observed by the Low-Altitude DEMETER Spacecraft by Gohl, Stefan, Němec, František, Parrot, Michel

“…A superposed epoch analysis is conducted for five geomagnetic storms in the years 2005 and 2006 with the aim to understand energetic particle flux variations…”
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Contrasting the efficiency of radiation belt losses caused by ducted and nonducted whistler-mode waves from ground-based transmitters by Rodger, Craig J., Carson, Bonar R., Cummer, Steven A., Gamble, Rory J., Clilverd, Mark A., Green, Janet C., Sauvaud, Jean-André, Parrot, Michel, Berthelier, Jean-Jacques

“…It has long been recognized that whistler‐mode waves can be trapped in plasmaspheric whistler ducts which guide the waves. For nonguided cases these waves are…”
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Statistical Research on Seismo-Ionospheric Ion Density Enhancements Observed via DEMETER by Zheng, Lin, Yan, Rui, Parrot, Michel, Zhu, Keying, Zhima, Zeren, Liu, Dapeng, Xu, Song, Lv, Fangxian, Shen, Xuhui

“…In this paper, in order to investigate the correlation between seismic activity and ionospheric density variation, nighttime ion density (Ni) data from IAP…”
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Spatial analyses on pre-earthquake ionospheric anomalies and magnetic storms observed by China seismo-electromagnetic satellite in August 2018 by Liu, Jann-Yenq Tiger, Shen, Xuhui, Chang, Fu-Yuan, Chen, Yuh-Ing, Sun, Yang-Yi, Chen, Chieh-Hung, Pulinets, Sergey, Hattori, Katsumi, Ouzounov, Dimitar, Tramutoli, Valerio, Parrot, Michel, Chen, Wei-Sheng, Liu, Cheng-Yan, Zhang, Fei, Liu, Dapeng, Zhang, Xue-Min, Yan, Rui, Wang, Qiao

“…The China Seismo-Electromagnetic Satellite (CSES), with a sun-synchronous orbit at 507 km altitude, was launched on 2 February 2018 to investigate…”
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Attenuation of electromagnetic waves at the frequency ~1.7 kHz in the upper ionosphere observed by the DEMETER satellite in the vicinity of earthquakes by David Píša, František Němec, Michel Parrot, Ondřej Santolík

“…The DEMETER satellite was the first satellite specifically dedicated to the recording of electromagnetic phenomena connected with seismic activity. Almost 6.5…”
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Analysis of subprotonospheric whistlers observed by DEMETER: A case study by Chum, Jaroslav, Santolik, Ondrej, Parrot, Michel

“…Subprotonospheric (SP) whistlers consist of a series of low‐dispersion components that result from repeated reflections between the base of the ionosphere and…”
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Tropospheric and Ionospheric Anomalies Induced by Volcanic and Saharan Dust Events as Part of Geosphere Interaction Phenomena by Tramutoli, Valerio, Marchese, Francesco, Falconieri, Alfredo, Filizzola, Carolina, Genzano, Nicola, Hattori, Katsumi, Lisi, Mariano, Liu, Jann-Yenq, Ouzounov, Dimitar, Parrot, Michel, Pergola, Nicola, Pulinets, Sergey

“…In this work, we assessed the possible relation of ionospheric perturbations observed by Detection of Electro-Magnetic Emissions Transmitted from Earthquake…”
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Radiation belt electron precipitation by man-made VLF transmissions by Gamble, Rory J., Rodger, Craig J., Clilverd, Mark A., Sauvaud, Jean-André, Thomson, Neil R., Stewart, S. L., McCormick, Robert J., Parrot, Michel, Berthelier, Jean-Jacques

“…Enhancements of drift‐loss cone fluxes in the inner radiation belt have been observed to coincide with the geographic location of the powerful VLF transmitter…”
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Ionospheric variations observed by the DEMETER satellite in the mid-latitude region during strong earthquakes by Sarkar, S., Gwal, A.K., Parrot, Michel

“…The French micro-satellite DEMETER (Detection of Electromagnetic Emissions Transmitted from Earthquake Regions) was launched on June 29, 2004. The orbit of…”
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Ground-based transmitter signals observed from space: Ducted or nonducted? by Clilverd, Mark A., Rodger, Craig J., Gamble, Rory, Meredith, Nigel P., Parrot, Michel, Berthelier, Jean-Jacques, Thomson, Neil R.

“…The principal loss mechanism for electrons from the inner radiation belt (1.2 < L < 2.0) and slot region (2.0 < L < 3.0) is atmospheric precipitation driven by…”
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Seismo-ionospheric anomalies of the GPS-TEC appear before the 12 May 2008 magnitude 8.0 Wenchuan Earthquake by Jhuang, Hau-Kun, Ho, Yi-Ying, Kakinami, Yoshihiro, Liu, Jann-Yenq, Oyama, Ko-Ichiro, Parrot, Michel, Hattori, Katsumi, Nishihashi, Masahide, Zhang, Donghe

“…In this paper, the total electron content (TEC) of Global Ionosphere Maps (GIMs) is normalized and employed to study the seismo-ionospheric anomalies at the…”
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Anomalous phenomena in DC–ULF geomagnetic daily variation registered three days before the 12 May 2008 Wenchuan MS 8.0 earthquake by Li, Mei, Yao, Li, Wang, YaLi, Parrot, Michel, Hayakawa, Masashi, Lu, Jun, Tan, HanDong, Xie, Tao

“…The hourly data of the vertical Z and the horizontal H components of 37 ground–based DC–ULF geomagnetic stations are examined during 20 April–12 May 2008. On 9…”
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Radiation belt electron precipitation into the atmosphere: Recovery from a geomagnetic storm by Rodger, Craig J., Clilverd, Mark A., Thomson, Neil R., Gamble, Rory J., Seppälä, Annika, Turunen, Esa, Meredith, Nigel P., Parrot, Michel, Sauvaud, Jean-André, Berthelier, Jean-Jacques

“…Large geomagnetic storms are associated with electron population changes in the outer radiation belt and the slot region, often leading to significant…”
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