Results 41 to 50 of about 113 (110)

The Double Peak Superposition on the Equatorial Ionization Anomaly Crests During the 23 April 2023 Storm

Geophysical Research Letters, Volume 51, Issue 22, 28 November 2024.
Abstract The typical equatorial ionization anomaly (EIA) exhibits two crests around the magnetic equator. Here we reported evidence for a double‐peak superposition at the EIA crest of each hemisphere, forming a four‐peak structure, with the additional peaks located ∼10° poleward of normal crests, as observed by CSES at 500 km altitudes on dayside ...
Yanyan Yang, Chao Xiong, Shun‐Rong Zhang, Rui Yan, He Huang, Zhima Zeren, Weixing Pu, Song Xu, Jianping Huang, Hengxin Lu, Yue Xu, Xuhui Shen   +11 more
wiley   +1 more source

Lithosphere-atmosphere-ionosphere coupling as governing mechanism for preseismic short-term events in atmosphere and ionosphere [PDF]

Natural Hazards and Earth System Sciences, 2004
We present a general concept of mechanisms of preseismic phenomena in the atmosphere and ionosphere. After short review of observational results we conclude: 1.
O. Molchanov, E. Fedorov, A. Schekotov, E. Gordeev, V. Chebrov, V. Surkov, A. Rozhnoi, S. Andreevsky, D. Iudin, S. Yunga, A. Lutikov, M. Hayakawa, P. F. Biagi   +12 more
doaj  

The first joint experimental results between SURA and CSES

Earth and Planetary Physics, 2018
In June 2018, for the first time, the SURA heating facility in Russia , together with the in-orbit China Seismo-Electromagnetic Satellite (CSES), carried out a series of experiments in emitting high frequency (HF) O-mode radio waves to disturb the ...
XueMin Zhang, Vladimir Frolov, ShuFan Zhao, Chen Zhou, YaLu Wang, Alexander Ryabov, DuLin Zhai   +6 more
doaj   +1 more source

Near‐Real‐Time Identification of the Source of Ionospheric Disturbances

Journal of Geophysical Research: Space Physics, Volume 129, Issue 11, November 2024.
Abstract The ionosphere is characterized by a large number of disturbances generated in response to a wide range of phenomena, including natural hazards, space weather and man‐made events. Identification of the origin of ionospheric disturbances (ID), especially in real or near‐real‐time (NRT), is an extremely difficult task, and it is one of the most ...
B. Maletckii, E. Astafyeva
wiley   +1 more source

Observation and Analysis of VLF Electromagnetic Pulse Sequences Triggered by Solar Flares on the CSES

Atmosphere
This study investigates the influence of solar flare events on the time–frequency characteristics of very low frequency (VLF) signals based on observations from the China Seismo–Electromagnetic Satellite (CSES) satellite.
Siyu Liu, Ying Han, Jianping Huang, Zhong Li, Xuhui Shen, Qingjie Liu   +5 more
doaj   +1 more source

A Numerical Consideration on the Correlation Between Magnitude of Earthquakes and Current Intensity Causing ULF Electromagnetic Wave Emission

Radio Science, Volume 59, Issue 7, July 2024.
Abstract Numerous studies have reported anomalous ultralow frequency (ULF) electromagnetic fields preceding earthquakes. In this paper, we estimate the current intensity responsible for generating the earthquake‐related ULF fields under the assumption that the origin is a current flowing at the hypocenter and that it has the same frequency dependence ...
Ryota Kimura, Yoshiaki Ando, Leo Kukiyama, Tomoya Masuzawa, Katsumi Hattori, Masashi Hayakawa   +5 more
wiley   +1 more source

Empowering Machine Learning Forecasting of Labquake Using Event‐Based Features and Clustering Characteristics

Journal of Geophysical Research: Machine Learning and Computation, Volume 1, Issue 2, June 2024.
Abstract Following recent advances of machine learning (ML), we present a novel approach to extract spatiotemporal seismo‐mechanical features from Acoustic Emission (AE) catalogs to empower ML‐based forecasting. The AE data were recorded during laboratory stick‐slip experiments on granite samples cut by rough faults.
Sadegh Karimpouli, Grzegorz Kwiatek, Yehuda Ben‐Zion, Patricia Martínez‐Garzón, Georg Dresen, Marco Bohnhoff   +5 more
wiley   +1 more source

Evaluation of the satellite’s wake effect on the electric field detector onboard the CSES-01 satellite

Earth and Planetary Physics
This study aimed to evaluate the wake effect on the electric field detector (EFD) onboard the China Seismo-Electromagnetic Satellite (CSES-01). Through a series of experiments and analyses, we confirmed that the disturbance phenomenon from probe B of the
JianPing Huang, ZongYu Li, Zhong Li, XingHong Zhu, JunGang Lei, YuanQing Miao, WenJing Li   +6 more
doaj   +1 more source

Characterizing Liquid Water in Deep Martian Aquifers: A Seismo‐Electric Approach

Journal of Geophysical Research: Planets, Volume 129, Issue 5, May 2024.
Abstract Deep Martian aquifers harboring liquid water could hold vital insights for current and past habitability. We show that with seismo‐electric interface responses (IRs) we can quantitatively characterize subsurface water on Mars. Full‐waveform simulations and sensitivity analyses across diverse Martian aquifer scenarios demonstrate the technique ...
N. Roth, T. Zhu, Y. Gao
wiley   +1 more source

Dynamically triggered seismicity on a tectonic scale: A review

Deep Underground Science and Engineering, Volume 3, Issue 1, Page 1-24, March 2024.
Research on the mechanism and models of earthquake triggering by dynamic disturbances is reviewed. The drawbacks of the available research works on earthquake triggering are pointed out. Some suggestions on scientific issues of earthquake triggering for future research are proposed.
Chengzhi Qi, Mingyang Wang, Gevorg Kocharyan, Artem Kunitskikh, Zefan Wang   +4 more
wiley   +1 more source