Results 51 to 60 of about 1,577 (144)

The Magnetosphere‐Ionosphere‐Ground Responses to the May 2024 Super Solar Storm

open access: yesSpace Weather, Volume 23, Issue 4, April 2025.
Abstract Earth suffered the attack of the strongest geomagnetic storm in the last 20 years (Kp = 9, Dst∼ ${\sim} $ −400 nT) occurred on 11 May 2024. Taking advantage of the LEO multi‐parameter CSES satellite (launched in 2018) with a large inclination angle 97° $97{}^{\circ}$, with the joint observations of NOAA and GOES, we present a comprehensive ...
Zhenxia Zhang   +15 more
wiley   +1 more source

Electric properties of granitic rocks [PDF]

open access: yes, 2010
The objective of this work is to clarify the role of water content on the charge trans- port mechanisms of different granitic rocks. The mineralogical content of the rocks will also be taken into account. From the electrical point of view these materials
Albino, A.   +6 more
core  

Magnetic storm free ULF analysis in relation with earthquakes in Taiwan [PDF]

open access: yes, 2012
Despite early optimism, pre-earthquake anomalous phenomena can be determined by using enhanced amplitude at the ultra-low-frequency range from geomagnetic data via the Fourier transform.
C.-H. Chen   +8 more
core   +1 more source

Analysis of Seismic Ionospheric Effects and Prediction of TEC During Earthquakes Occurred in Indonesia Based on GPS Data

open access: yesAdvances in Astronomy, Volume 2025, Issue 1, 2025.
Total electron content (TEC), which quantifies the quantity of free electrons in the Earth’s ionosphere, is a crucial parameter that experiences discrepancies during seismic events. This study investigates the potential of utilizing TEC prediction at the BAKO position in Indonesia during earthquakes. TEC data and solar parameters were collected for six
R. Mukesh   +5 more
wiley   +1 more source

An Improved Pattern Informatics Method for Extracting Ionospheric Disturbances Related to Seismicity Based on CSES Data: A Case Study of the Mw7.3 Maduo Earthquake

open access: yesEarth and Space Science, Volume 11, Issue 12, December 2024.
Abstract The exploration of multi‐layer coupling mechanisms between earthquakes and the ionosphere is crucial for utilizing ionospheric precursors in earthquake prediction. A significant research task involves continuously tracking the spatio‐temporal changes in ionospheric parameters, acquiring comprehensive seismic anomaly information, and capturing “
Weixi Tian   +5 more
wiley   +1 more source

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

open access: yesGeophysical 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   +11 more
wiley   +1 more source

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

open access: yesNatural 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   +12 more
doaj  

The first joint experimental results between SURA and CSES

open access: yesEarth 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   +6 more
doaj   +1 more source

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

open access: yesJournal 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

open access: yesAtmosphere
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   +5 more
doaj   +1 more source

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