Results 81 to 90 of about 11,853 (228)

Scaling in the space climatology of the auroral indices: Is SOC the only possible explanation ? [PDF]

, 2002
The study of the robust features of the magnetosphere is motivated both by new "whole system" approaches, and by the idea of "space climate" as opposed to "space weather".
Watkins, Nicholas
core   +2 more sources

Storm‐Time Dst Forecast: An Innovative Approach

Space Weather, Volume 24, Issue 5, May 2026.
Abstract One of the most persistent challenges in the space weather field is predicting the storm‐time response of the geospace without knowing the predicted drivers in the solar wind. Here, a new pattern recognition algorithm is developed to predict storm‐time Dst index from 1 hr to ∼4.5 days into the future. Storm‐time Dst patterns (or reference Dst)
Yongliang Zhang, Larry J. Paxton
wiley   +1 more source

Stationary magnetospheric convection on November 24, 1981. 2. Small-scale structures in the dayside cusp/cleft [PDF]

Annales Geophysicae, 1999
A case study of the dayside cusp/cleft region during an interval of stationary magnetospheric convection (SMC) on November, 24, 1981 is presented, based on detailed measurements made by the AUREOL-3 satellite. Layered small-scale field-aligned current
Y. I. Galperin, J. M. Bosqued, R. A. Kovrazhkin, A. G. Yahnin   +3 more
doaj   +1 more source

TOPOLOGIES OF CURRENT-FREE AXISYMMETRIC MAGNETOSPHERES IN STAR-DISK SYSTEMS

The Astrophysical Journal, 2009
Young stars are strongly magnetized. They interact with circumstellar disks through a shared magnetosphere. The interaction can have powerful effects on both the mass accretion from the disk to the star and the launch of magnetocentrifugal outflows. In this work, we show an extensive set of topological types of axisymmetric magnetospheres of the star ...
Ruben Krasnopolsky, Hsien Shang, Zhi-Yun Li   +2 more
openaire   +1 more source

GOES‐R Series X‐Ray Sensor (XRS): 2. On‐Orbit Measurements and Calibrations

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract An X‐Ray Sensor (XRS) has been onboard each of the National Oceanic and Atmospheric Administration (NOAA) Geostationary Operational Environmental Satellites (GOES) since 1975. XRS measures full‐disk soft X‐ray irradiance in two wavelength bands, 0.05–0.4 nm and 0.1–0.8 nm.
Janet L. Machol, Stefan M. Codrescu, Courtney L. Peck, Elysia S. Lucas, James F. Mothersbaugh III, Thomas N. Woods, Ann Marie Mahon, James Negus, Donald L. Woodraska, Thomas D. Eden Jr., Francis G. Eparvier, Andrew R. Jones, Brooke Kotten, Laurel A. Rachmeler, Andrew C. Wilson, Brian T. Kress, Juan V. Rodriguez, Rodney A. Viereck   +17 more
wiley   +1 more source

The Dynamics of Stellar Coronae Harboring Hot-jupiters II. A Space Weather Event on A Hot-jupiter

, 2011
We carry out a numerical simulation depicting the effects of a Coronal Mass Ejection (CME) event on a close-in giant planet in an extrasolar system. We drive the CME in a similar manner as in simulations of space weather events on Earth.
Cohen, Cohen, Cohen, Cohen, Cohen, Cohen, Cuntz, Gombosi, Güdel, I. V. Sokolov, Ip, J. J. Drake, Jacobs, Kashyap, Kivelson, Lammer, Liu, Lugaz, Manchester, Mayor, Murray-Clay, O. Cohen, Pillitteri, Pulkkinen, Roussev, Saar, Schneider, Schneider, Schneiter, Schwenn, Shkolnik, Shkolnik, Shkolnik, Shkolnik, Sánchez-Lavega, T. I. Gombosi, Telleschi, Titov, V. L. Kashyap   +38 more
core   +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

April 2000 geomagnetic storm: ionospheric drivers of large geomagnetically induced currents [PDF]

Annales Geophysicae, 2003
Geomagnetically induced currents (GIC) flowing in technological systems on the ground are a direct manifestation of space weather. Due to the proximity of very dynamic ionospheric current systems, GIC are of special interest at high latitudes ...
A. Pulkkinen, A. Thomson, E. Clarke, A. McKay   +3 more
doaj   +1 more source

Validation of VERB‐3D Simulation Results in Response to the COSPAR ISWAT Challenge

Space Weather, Volume 24, Issue 5, May 2026.
Abstract In response to the first long‐term simulation challenge issued by the COSPAR International Space Weather Action Team (ISWAT) G3‐04 team (“Internal Charging Effects and the Relevant Space Environment”), we evaluate the performance of the Versatile Electron Radiation Belt‐3D model by simulating the radiation belt electron dynamics for the entire
Xingzhi Lyu, Dedong Wang, Miroslav Hanzelka, Shangchun Teng, Alexander Y. Drozdov, Angelica Castillo, Yuri Y. Shprits   +6 more
wiley   +1 more source

Influences of various magnetospheric and ionospheric current systems on geomagnetically induced currents around the world [PDF]

Space Weather, 2017
AbstractGround‐based observations of geomagnetic field (B field) are usually a superposition of signatures from different source current systems in the magnetosphere and ionosphere. Fluctuating B fields generate geoelectric fields (E fields), which drive geomagnetically induced currents (GIC) in technological conducting media at the Earth's surface. We
J. S. de Villiers, M. Kosch, Y. Yamazaki, S. Lotz   +3 more
openaire   +5 more sources