Results 71 to 80 of about 23,807 (281)

Halo Coronal Mass Ejections during Solar Cycle 24: reconstruction of the global scenario and geoeffectiveness [PDF]

, 2017
In this study we present a statistical analysis of 53 fast Earth-directed halo CMEs observed by the SOHO/LASCO instrument during the period Jan. 2009-Sep.
Messerotti, Mauro, Poedts, Stefaan, Rodriguez, Luciano, Scolini, Camilla   +3 more
core   +4 more sources

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

Origin of Intense Plasma Depletions After Midnight Over the Korean Peninsula During the Geomagnetic Storm on 11 May 2024

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract A band of total electron content (TEC) depletions of about 5–15 TEC unit passed over the Korean Peninsula after midnight during the geomagnetic storm on 11 May 2024. This magnitude of TEC depletions has not been previously reported in the region.
Hyosub Kil, Se‐Heon Jeong, Woo Kyoung Lee, Junseok Hong, Septi Perwitasari, Michi Nishioka, Prayitno Abadi   +6 more
wiley   +1 more source

A Study of the Morphology of Magnetic Storms Great Magnetic Storms [PDF]

, 1958
Average characteristics are determined for 74 great magnetic storms with sudden commencements that occurred in 1902-1945. The storm field is resolved for different epochs of storm time into tv;o parts: (i) Dst, which is independent of local time, that
Chapman, Sydney, Sugiura, Masahisa
core  

Efficiency of Electromagnetic Energy Transfer From Solar Wind to Ionosphere Through Magnetospheric Ultra‐Low Frequency Waves

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract Ultra‐low frequency (ULF) waves are a ubiquitous carrier of energy in geospace. However, their efficiency in transferring solar wind energy into the upper atmosphere remains a fundamental and not well‐understood question. This is due to their global presence, which cannot be fully quantified by spatially limited observations, and the need for ...
Dong Lin, Michael Hartinger, William Lotko, Wenbin Wang, Xueling Shi, Kareem Sorathia, Bharat Kunduri, Viacheslav Merkin, Kevin Pham, Michael Wiltberger   +9 more
wiley   +1 more source

A Study of the Morphology of Magnetic Storms: Moderate Magnetic Storms [PDF]

, 1957
Some average characteristics are determined for 136 moderate magnetic storms with sudden commencements that occurred during the interval 1902-1945.
Chapman, Sydney, Sugiura, Masahisa
core  

Geoeffectiveness and efficiency of CIR, Sheath and ICME in generation of magnetic storms

, 2011
We investigate relative role of various types of solar wind streams in generation of magnetic storms. On the basis of the OMNI data of interplanetary measurements for the period of 1976-2000 we analyze 798 geomagnetic storms with Dst < -50 nT and their ...
Akasofu, Alves, Alves, Borovsky, Borovsky, Burlaga, Burton, Cane, D'Amicis, Denton, Despirak, Despirak, Dmitriev, Dungey, Echer, Echer, Echer, Fairfield, Gonzalez, Gonzalez, Gonzalez, Guo, Huttunen, Huttunen, Huttunen, I. G. Lodkina, Jian, Khabarova, King, Koskinen, Lepping, Longden, Lopez, M. Y. Yermolaev, Mustajab, N. S. Nikolaeva, Nikolaeva, Nikolaeva, Plotnikov, Pulkkinen, Pulkkinen, Richardson, Rostoker, Russell, Thatcher, Tsurutani, Tsurutani, Turner, Weigel, Xu, Y. I. Yermolaev, Yermolaev, Yermolaev, Yermolaev, Yermolaev, Yermolaev, Yermolaev, Yermolaev, Yermolaev, Yermolaev, Yermolaev, Yermolaev, Yermolaev, Zhang   +63 more
core   +1 more source

Multi‐Species Energy‐Banded Ions in the Ionosphere During the 21 January 2005 Magnetic Storm: Low‐Altitude Edge of the Warm Plasma Cloak

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract During the 21–22 January 2005 magnetic storm, the FAST satellite observed warm (< few keV) ions in discrete energy bands on the dayside at ∼3,000 km altitude for more than 6.5 hr. We suggest that the ionospheric energy‐banded ions represent the low‐altitude edge of the warm plasma cloak observed simultaneously by magnetospheric satellites ...
J. U. Kozyra, M. W. Liemohn, C. A. Cattell, J. Dombeck, C. P. Escoubet, M. Thomsen, G. Lu, D. J. Knipp, L. J. Paxton, R. M. Skoug, H. A. Elliott, A. J. Davis, L. Rastaetter, D. DeZeeuw, C. Colpitts   +14 more
wiley   +1 more source

Analysis on the Impact of Geomagnetic Storm on Reactive Power and Voltage in Extrahigh Voltage Power Grid [PDF]

E3S Web of Conferences, 2019
With the growing scale of the power grid and the improvement of the voltage level, the geomagnetically induced currents (GICs) generated by geomagnetic storms has become one of the leading factors that cause large-scale power outages in power grid ...
Kang Lan, He Bin, Yang Peihong, Dong Xiaoling   +3 more
doaj   +1 more source

Deep Learning‐Based Prediction of High‐Speed Solar Wind Streams: Spatio‐Temporal Dependencies in Coronal Hole Dynamics

Earth and Space Science, Volume 13, Issue 1, January 2026.
Abstract High‐speed solar wind streams (HSS), originating from coronal holes (CH), are key drivers of space weather disturbances and heliospheric dynamics. However, forecasting HSS remains challenging due to the evolving morphology of CH. In this study, we present a deep learning‐based framework that models the spatiotemporal relationship between CH ...
J. J. Abraham‐Alowonle, Amr Hamada, Moataz Abdelwahab, Kanya Kusano, Ayman Mahrous   +4 more
wiley   +1 more source