Results 81 to 90 of about 18,291 (244)

Geomagnetic storms predictions....

, 2014
Arecibo Observatory saturday academy student poster.
openaire   +1 more source

Simultaneous Observations of Electron Phase Space Density Variations in the Geostationary Orbit by GK2A, GOES‐16, and GOES‐17

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract This study presents simultaneous measurements of electron phase space density (PSD) gradients in geostationary orbit using data from GK2A, GOES‐16, and GOES‐17. By leveraging a three‐satellite configuration, we provide statistical results of PSD gradient estimation in invariant coordinates.
N.‐Y. Lee, J. Seon, G. W. Na, C.‐H. Lee, W.‐H. Seol, K.‐C. Kim   +5 more
wiley   +1 more source

Evolution of Anemone AR NOAA 10798 and the Related Geo-Effective Flares and CMEs

, 2008
We present a detailed examination of the features of the Active Region (AR) NOAA 10798. This AR generated coronal mass ejections (CMEs) that caused a large geomagnetic storm on 24 August 2005 with the minimum Dst index of -216 nT.
Alexander, Asai, Asai, Ayumi Asai, Bruzek, Delaboudiniére, Domingo, Forsyth, Gopalswamy, Gopalswamy, Gopalswamy, Gopalswamy, Gopalswamy, Gosling, Hale, Ishii, Kataoka, Kazunari Shibata, Ken'ichi Fujiki, Kojima, Kokubun, Kundu, Kurokawa, Lepping, Liu, Liu, Low, López Fuentes, Manoharan, Martin, Matsumoto, Mitsuo Oka, Mukai, Munro, Nagashima, Nat Gopalswamy, Rust, Ryuho Kataoka, Saito, Saito, Scherrer, Sheeley, Sheeley, Sheeley, Shibata, Shibata, Shibata, Takahashi, Takako T. Ishii, Terasawa, Tian, Tokumaru, Tokumaru, Tokumaru, Tousey, Verma, Vourlidas, Wang, Wang, Yashiro, Yokoyama, Yokoyama, Young, Zhang   +63 more
core   +1 more source

Formation of Continuum Emission Structures Associated With the Aurora

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Recent observations enabled by improvements in geospace remote‐sensing instrumentation have revealed the spatial structure of continuum emissions that appear to be associated with the aurora, but little is known about the formation and drivers of these structures.
J. Houghton, E. Spanswick, J. Liang, B. Gallardo‐Lacourt   +3 more
wiley   +1 more source

Intense Ground Magnetic Perturbations During the 2024 May and October Geomagnetic Storms

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract The May and October 2024 geomagnetic storms represent two of the most intense space weather events of Solar Cycle 25. While differing in global intensity, both storms produced extreme ionospheric disturbances, including equatorward auroral expansion to mid‐latitudes and rapid geomagnetic variations (dH/dt $\text{dH}/\text{dt}$).
P. De Michelis, E. Consolini, F. Giannattasio, G. Consolini   +3 more
wiley   +1 more source

Geomagnetic effects on cosmic ray propagation under different conditions for Buenos Aires and Marambio, Argentina [PDF]

, 2014
The geomagnetic field (Bgeo) sets a lower cutoff rigidity (Rc) to the entry of cosmic particles to Earth which depends on the geomagnetic activity. From numerical simulations of the trajectory of a proton using different models for Bgeo (performed with ...
Dasso, Sergio, Masías-Meza, Jimmy J.
core   +1 more source

The 10 October 2024 geomagnetic storm may have caused the premature reentry of a Starlink satellite

Frontiers in Astronomy and Space Sciences
In this short communication, we qualitatively analyze possible effects of the 10 October 2024 geomagnetic storm on accelerating the reentry of a Starlink satellite from very low-Earth orbit (VLEO). The storm took place near the maximum of solar cycle (SC)
Denny M. Oliveira, Denny M. Oliveira, Eftyhia Zesta, Dibyendu Nandy, Dibyendu Nandy   +4 more
doaj   +1 more source

Global GNSS Observation of Mesoscale Ionospheric Irregularities (2006–2024)

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Mesoscale ionospheric irregularities are statistically investigated using an unprecedented 19‐year long‐term global GNSS (Global Navigation Satellite System) TEC (total electron content) data set. These irregularities are represented by ionospheric fluctuations within a 5°× ${}^{\circ}\times $ 3.75° ${}^{\circ}$ (latitude by longitude) region ...
Shun‐Rong Zhang, Jing Liu, Anthea J. Coster, Sevag Derghazarian, Philip J. Erickson, Larisa P. Goncharenko, Nestor Aponte, William Rideout   +7 more
wiley   +1 more source

Behavior of radiation belts anomalous cosmic radionoise absorption in the aurora zone during the magnetic storms of 12-14 and 20-21 February 1964 [PDF]

Characteristics of radiation belt and ionospheric absorption of cosmic radio noise in auroral zone during geomagnetic ...
Driatskiy, V. M., Kuznetsov, S. N., Stolpovskiy, V. G., Vernov, S. N.   +3 more
core   +1 more source

Observations of Ion Density and Temperature around the International Space Station During two Geomagnetic Storms [PDF]

, 2018
The International Space Station (ISS) is a low Earth orbit research facility and host to an international crew. Geomagnetic storms cause changes in the Earth’s magnetic field and affect the ion density and temperature in the ionosphere which could pose a
Wright, Alex M
core   +1 more source