Results 41 to 50 of about 65,677 (256)

Reconstructing Magnetotail Reconnection Events Using Data Mining is Feasible and Repeatable

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 1, February 2026.
Abstract Recently, Stephens et al. (2023), https://doi.org/10.1029/2022ja031066 utilized a data mining (DM) algorithm, applied to 26 years of magnetospheric magnetometer observations coupled with a flexible formulation of the magnetospheric magnetic field, to reconstruct the global configuration of the magnetotail when the Magnetospheric MultiScale ...
G. K. Stephens, R. S. Weigel, M. I. Sitnov, N. A. Tsyganenko   +3 more
wiley   +1 more source

Impact of Various Disturbance Sources on the Atmospheric Electric Field and Thunderstorm Activity of the Northern Tien-Shan

Atmosphere, 2023
Features of the manifestations of various sources of disturbances in the atmospheric electric field at the Tien-Shan high-mountain station have been studied, and the statistical relationship between solar and thunderstorm activity has been established ...
Valentina Antonova, Vadim Lutsenko, Galina Gordiyenko, Sergey Kryukov   +3 more
doaj   +1 more source

Low Frequency Oscillation Observed in the Ionosphere Around the Substorm Onsets

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Three substorm events in which Defense Meteorological Satellite Program (DMSP) spacecraft are geomagnetically co‐located with substorm onset locations in IMAGE far ultraviolet auroral images are analyzed. A Hilbert‐Huang Transform is used to decompose the DMSP B⊥ ${B}_{\perp }$ in the ionosphere to its intrinsic mode functions. A dominant mode
Simon Wing, Jay R. Johnson, Elmer C. Rivera, Arthur J. Hull, Peter Damiano   +4 more
wiley   +1 more source

Regional Characteristics of Geomagnetic Activity: Comparative Analysis of Local K and Global Kp Indices

Atmosphere
Geomagnetic activity reflects the complex coupling between the solar wind, magneto-sphere and ionosphere. While the global Kp index serves as a standard proxy for geo-magnetic disturbances, it obscures regional variations linked to local current systems ...
Vitaliy Kapytin, Alexey Andreyev, Vyacheslav Somsikov, Beibit Zhumabayev, Saule Mukasheva, Yekaterina Chsherbulova, Stanislav Utebayev   +6 more
doaj   +1 more source

Winter thunderstorms in Kamchatka [PDF]

E3S Web of Conferences, 2019
Winter thunderstorms in Kamchatka are rare meteorological phenomena. To investigate the nature of this phenomenon, time variations of quasistatic electric field and meteorological quantities at «Paratunka» observatory, IKIR FEB RAS (φ = 52:97° N; λ = 158:
Smirnov Sergey, Mikhailov Yury, Mikhailova Galina, Kapustina Olga   +3 more
doaj   +1 more source

Multipoint Observations of a SLAMS Evolution and Its Merger With Whistler Waves

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract We report multipoint observations of a merger between a Short Large‐Amplitude Magnetic Structure (SLAMS) and 1‐Hz whistler wave packets upstream of Earth's quasi‐parallel bow shock. Using high‐resolution data from the Magnetospheric Multiscale (MMS) mission in a string‐of‐pearls configuration, we track the SLAMS as it evolves, exhibiting ...
Mengmeng Wang, Yuri V. Khotyaintsev, Daniel B. Graham, Jing‐Huan Li, Ahmad Lalti, Cecilia Norgren   +5 more
wiley   +1 more source

Observation of the Large Forbush Decrease Event on 1–10 June 2025 at the Tien Shan Cosmic Ray Station

Atmosphere
An intensive disturbance of the heliosphere originating from a series of solar flares at the end of May 2025 revealed itself as an extremely strong Forbush decrease in the flux of galactic cosmic rays, which was observed at the worldwide network of ...
Alexander Shepetov, Olga Kryakunova, Rustam Koichubayev, Nikolay Nikolayevskiy, Vladimir Ryabov, Botakoz Seifullina, Irina Tsepakina, Valery Zhukov   +7 more
doaj   +1 more source

Plasma Conditions Govern the Reversible Transition Between STEVE and Picket Fence Emissions

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract On 6 May 2018, a remarkable subauroral optical event exhibiting three phases of evolution (Strong Thermal Emission Velocity Enhancement [STEVE] → Picket Fence → STEVE) and co‐occurrence with a stable auroral red arc was observed over Alberta, Canada.
Jinghan Wang, Jing Liu, Jun Liang, Shuhan Li   +3 more
wiley   +1 more source

Influence of the hypermagnetic field noise on the baryon asymmetry generation in the symmetric phase of the early universe

European Physical Journal C: Particles and Fields, 2021
We study a matter turbulence caused by strong random hypermagnetic fields (HMFs) that influence the baryon asymmetry evolution due to the Abelian anomalies in the symmetric phase in the early Universe.
Maxim Dvornikov, Victor B. Semikoz
doaj   +1 more source

The International Reference Ionosphere - A Model Ionosphere

Eos, 2023
An accurate and reliable description of Earth’s ionosphere is of critical importance because of our increased reliance on satellite technology and the significant impact the ionosphere has on it.
openaire   +1 more source