Results 61 to 70 of about 91,577 (233)

Recurrent and sporadic Forbush decreases during solar cycles 23–24

Solar-Terrestrial Physics, 2019
A comparison has been made between recurrent (associated with high-speed streams from coronal holes) and sporadic (caused by interplanetary coronal mass ejections (ICMEs)) Forbush decreases (FDs) in solar cycles 23 and 24 (as well as in the maxima of ...
Melkumyan A.A., Belov A.V., Abunina M.A., Abunin A.A., Eroshenko E.A., Oleneva V.A., Yanke V.G.   +6 more
doaj   +1 more source

IMPACT OF METEOROLOGICAL STORMS ON THE E-REGION OF THE IONOSPHERE IN 2017–2018

Solar-Terrestrial Physics, 2020
The paper presents the results of observations of the sporadic Es layer during the period of meteorological disturbances in Kaliningrad in October 2017 and 2018 under quiet geomagnetic conditions. During the meteorological storms (October 29–30, 2017 and
O.P. Borchevkina, I.V. Karpov, M.I. Karpov, N.A. Korenkova, V.I. Vlasov, V.S. Leshchenko   +5 more
doaj   +1 more source

IZMIRAN candidate field model for IGRF-13

Earth, Planets and Space, 2021
The International Geomagnetic Reference Field (IGRF) model is a combination of the several models developed by independent groups of scientists using different approaches for the selection of input data and methods for calculating harmonic coefficients ...
Valeriy G. Petrov, Tatyana N. Bondar
doaj   +1 more source

Laboratory Realization of Magnetopause‐Like Reconnection in Space Plasma Environment Research Facility (SPERF)

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract Magnetic reconnection explosively converts magnetic energy into plasma heating and particle acceleration. At Earth's magnetopause, reconnection governs solar wind‐magnetosphere coupling and drives global convection. Understanding these processes requires resolving reconnection's spatiotemporal evolution, which is difficult for in situ ...
Kai Huang, Wenbin Ling, Huibo Tang, Jian Guan, Jihua Yang, Jiayin Xie, Gaoyuan Peng, Hanru Ma, Nan Wang, Tianyi Zhang, Zheng Cao, Shangkun Ren, Yangguang Ke, Ke Han, Yunning Dong, Yaowen Lu, Peng E, Quanming Lu   +17 more
wiley   +1 more source

Forbush Effects Associated with Disappeared Solar Filaments

Atmosphere
The Forbush effects (FEs) in cosmic rays associated with interplanetary disturbances caused by the disappearance of solar filaments (DSFs) outside active regions (ARs) are considered.
Olga Kryakunova, Botakoz Seifullina, Maria Abunina, Nataly Shlyk, Artem Abunin, Nikolay Nikolayevskiy, Irina Tsepakina   +6 more
doaj   +1 more source

Barometric effect of neutron component of cosmic rays at Antarctic station «Mirny»

Solar-Terrestrial Physics, 2016
The barometric effect of cosmic ray neutron component was estimated on the example of the Antarctic station Mirny. We used hourly data from continuous monitoring of neutron component and data from a local weather station for 2007–2014.
Kobelev P.G., Аbunin А.А., Аbunina M.А., Preobrazhensky M.S., Smirnov D.V., Lukovnikova А.А.   +5 more
doaj   +1 more source

Ultra‐Fast Measurements of Precipitating Electrons in Earth's Cusp—A Source of Flickering Aurora Near 1 RE

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract We present electron measurements from the Acute Precipitating Electron Spectrometer (APES) that flew on the VISualizing Ion Outflow via Neutral atom imaging during a Substorm‐2 (VISIONS‐2) sounding rocket which launched from Svalbard, Norway into dayside cusp aurora.
R. G. Michell, M. Samara, G. Grubbs, D. Rowland, R. Pfaff, J. H. Clemmons   +5 more
wiley   +1 more source

Linking Very Near‐Earth Reconnection (VNERX) to Mid‐Latitude GICs: Evidence From the 7 September 2017 Storm

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract Geomagnetically Induced Currents (GICs) are a hazard to power systems. In this letter, we present a case study to understand why a Sudden‐Commencement‐associated 20A GIC spike, measured at mid‐latitude in Virginia, US, increased to 30A within 2 min of interplanetary shock arrival.
Bhagyashree Waghule, Delores J. Knipp, Grant K. Stephens, David M. Malaspina   +3 more
wiley   +1 more source

A PLL-Based Doppler Method Using an SDR-Receiver for Investigation of Seismogenic and Man-Made Disturbances in the Ionosphere

Geosciences
The article describes in detail the equipment and method for measuring the Doppler frequency shift (DFS) on an inclined radio path, based on the principle of the phase-locked loop using an SDR receiver for the investigation of seismogenic and man-made ...
Nazyf Salikhov, Alexander Shepetov, Galina Pak, Vladimir Saveliev, Serik Nurakynov, Vladimir Ryabov, Valery Zhukov   +6 more
doaj   +1 more source

Dynamic Mode Transitions and Intermittent Features of Magnetic Reconnection at the Magnetopause: MMS Observation

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract By analyzing continuous Magnetospheric Multiscale observations at the magnetopause boundary layer, combining both magnetohydrodynamic and kinetic signatures, we have successfully captured dynamic magnetic reconnection processes in exceptional detail. Our results demonstrate that magnetic reconnection exhibits rapid transitions between distinct
X.‐K. Wang, X.‐C. Dong, M. W. Dunlop, K. J. Trattner, E.‐Z. Zhao, T.‐Y. Wang, J.‐S. Zhao, T. Yang, X.‐W. Sun, J. Liu, X. Li, G.‐Q. Liu, J.‐B. Cao   +12 more
wiley   +1 more source