Results 71 to 80 of about 13,437 (258)

How Does the Definition of a Geomagnetic Storm Affect the Contents of the Resulting Storm List?

Space Weather, Volume 24, Issue 5, May 2026.
Abstract A geomagnetic storm is a significant and prolonged disturbance of the Earth's magnetic field caused by an enhancement of the ring current. Storms are typically identified using magnetic field measurements from multiple ground‐based magnetometers, and the corresponding dates and times of multiple storms can be collated to form a storm list ...
Atlas M. Patrick, John C. Coxon, Sarah N. Bentley, Maria‐Theresia Walach, Kyle R. Murphy, I. Jonathan Rae, Isobel S. Lockley   +6 more
wiley   +1 more source

Observations of Electrostatic Solitary Waves in the Martian Magnetic Reconnection Exhaust Region

The Astrophysical Journal
This study reports for the first time the occurrence of electrostatic solitary waves during a reconnection exhaust event observed by NASA’s Mars Atmosphere and Volatile Evolution mission on 2015 February 9 in the dayside Martian magnetosheath region.
Nivedita Chakraborty, Devanandhan S, Satyavir Singh, Gurbax Singh Lakhina   +3 more
doaj   +1 more source

Geomagnetic disturbances on ground associated with particle precipitation during SC [PDF]

, 2010
We have examined several cases of magnetosphere compression by solar wind pressure pulses using a set of instruments located in the noon sector of auroral zone. We have found that the increase in riometric absorption (sudden commencement absorption, SCA)
Honary, F., Kozlovsky, A., Safargaleev, V., Turunen, T., Voronin, A.   +4 more
core   +3 more sources

AMPERE Observations of the Asymmetry Toward Stronger Birkeland Currents in the Northern Hemisphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract We quantify the asymmetry between the Birkeland currents (also known as field‐aligned currents) in the Northern and Southern Hemispheres. We use data from the Active Magnetosphere and Planetary Electrodynamics Response Experiment (AMPERE) in 2010–2024 inclusive for both hemispheres, compute the observed asymmetry, and then subtract the modeled
John C. Coxon, Sarah K. Vines, Wenli Mo, Matthew J. Townson, Clare E. J. Watt, I. Jonathan Rae, D. Shaun Bloomfield, Andrew W. Smith, Stephen E. Milan, Brian J. Anderson, Atlas M. Patrick, Maria C. Hasler   +11 more
wiley   +1 more source

Solar Wind‐Magnetosphere‐Ionosphere Coupling During the October 2024 Storms

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract Two geomagnetic storms occurred in October 2024 (Oct 6‐9 and 10–12), driven by the impact of a series of interplanetary coronal mass ejections on the magnetosphere. The first was a moderate storm, with peak Sym‐H near −150 nT, whereas the second was intense, Sym‐H reaching −340 nT.
S. E. Milan, M. K. Mooney, G. E. Bower, R. M. Hodnett, U. V. Amerstorfer, C. Möstl, A. Samsonov, B. J. Anderson, J. Gjerloev, S. K. Vines   +9 more
wiley   +1 more source

Low-latitude geomagnetic signatures during major solar energetic particle events of solar cycle-23 [PDF]

Annales Geophysicae, 2006
The frequency of occurrence of disruptive transient processes in the Sun is enhanced during the high solar activity periods. Solar cycle-23 evidenced major geomagnetic storm events and intense solar energetic particle (SEP) events.
R. Rawat, S. Alex, G. S. Lakhina
doaj   +1 more source

Activities in Sunspot Group NOAA 9393 [PDF]

, 2008
Watukosek Aeronautics and Space Observing Site (WKSO, LAPAN), observed sunspot in daily basis since 1987 using a sketch method. Sunspot group NOAA 9393 (or WKSO 0123) have been observed in March to early of April 2001.
Bachtiar, Anwar, Bambang, Setiahadi
core  

Magnetic Signatures of a Plasma Wake Behind the Swarm Satellites

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract This study provides first observational evidence of a plasma wake behind ESA's Swarm satellites, manifesting itself by a brief magnetic field strength spike and bipolar field variations in transverse direction. These magnetic signatures occur only near the dip‐equator where the magnetic declination is close to zero.
Chao Xiong, Xinyi Rang, Hermann Lühr, Fan Yin   +3 more
wiley   +1 more source

Design environment criteria Final report [PDF]

Meteoroid concentration, radiation effects, earth albedo criteria, and geomagnetism affecting spacecraft ...
Vachon, D. N.
core   +1 more source

Influence of the Eccentric Geomagnetic Dipole on Longitude Variations of Compressional Upstream Wave Amplitudes in the Topside Ionosphere: Results From the MSS‐1A Satellite

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Based on 2‐year magnetic data from the Macau science satellite, we investigate the compressional Pc3‐4 pulsations (between 16 and 100 mHz) driven by upstream waves (UWs). Our results confirm larger UWs amplitudes in the South Atlantic Anomaly (SAA) longitudes, agreeing with previous missions.
Chao Xiong, Haibin Liu, Hermann Lühr, Chunyu Xu   +3 more
wiley   +1 more source