Results 71 to 80 of about 634 (193)

Simulation of GIC in the North Island of Aotearoa New Zealand Based on Magnetotelluric Measurements

Space Weather, Volume 24, Issue 7, July 2026.
Abstract New magnetotelluric (MT) data, combined with older MT data are used to simulate geomagnetically induced currents (GIC) in the power network of the North Island of Aotearoa New Zealand for two geomagnetic storms. For the May 2024 G5 Gannon Storm, simulations use magnetic field data from two separate locations—the Intermagnet geomagnetic ...
K. M. Pratscher, M. Ingham, W. Heise, E. Bertrand, D. H. Mac Manus, C. J. Rodger, M. Dalzell   +6 more
wiley   +1 more source

Computations on the interaction of an interplanetary shock with the Earth's magnetosphere

Astrophysics and Space Science, 1977
We present the results of a one-dimensional computer simulation of the interaction between interplanetary shocks and the Earth's magnetosphere. The position of the bowshock as a function of solar wind velocity and interplanetary field direction is studied.
Pater, I. de, Weber, W.J.
openaire   +3 more sources

The θBn problem: Determination of local magnetic parameters of interplanetary shocks from in situ IMF data [PDF]

Geofísica Internacional, 2001
The angle θBn is the angle between the upstream magnetic field and the shock normal direction and is important for many phenomena in interplanetary physics.
Andre Balogh, J. Américo González-Esparza   +1 more
doaj  

A Model for Recommending Historical Similar Events in Forecasting CME Geoeffectiveness

Space Weather, Volume 24, Issue 7, July 2026.
Abstract Coronal mass ejections (CMEs) are among the key solar eruptive activities, triggering space weather disturbances. Thus, forecasting their geoeffectiveness has become a research focus. This study constructs a model to recommend similar events for forecasting the geoeffectiveness of CMEs.
Yurong Shi, Bingxian Luo, Jingjing Wang, Yanhong Chen, Siqing Liu   +4 more
wiley   +1 more source

Large, Long‐Lasting Mid‐Latitude Geomagnetically Induced Currents During a Moderate Geomagnetic Storm

Space Weather, Volume 24, Issue 7, July 2026.
Abstract Geomagnetically Induced Currents (GICs) are a key space weather hazard to ground‐based infrastructure, and can cause mis‐operation or even equipment failure. The solar wind interacts with the Earth's geomagnetic field, causing the magnetic field at ground level to vary with time.
A. W. Smith, C. J. Rodger, I. J. Rae, D. H. Mac Manus, M. A. Clilverd, J. Malone‐Leigh, J. C. Coxon, C. D. Beggan, J. Hübert, A. Renton, A. P. Dimmock, C. Forsyth, M.‐T. Walach, W. Sun, K. M. Pratscher, T. Petersen, M. Dalzell   +16 more
wiley   +1 more source

Variations of Heavy Ions in Interplanetary Shock Driven by Interplanetary Coronal Mass Ejections and Stream Interaction Regions

The Astrophysical Journal Supplement Series
In the solar wind, the fluctuation of heavy ion abundance serves as a crucial physical metric. This not only mirrors the attributes of the solar wind’s originating solar region but also signifies its influence on Earth’s magnetosphere.
Cong Wang, Qian Ye, Mu Li, Fei He, Xiaoxin Zhang   +4 more
doaj   +1 more source

Beyond Mean Solar Wind Conditions: Turbulence‐Aware Forecasting of the AE Index

Space Weather, Volume 24, Issue 7, July 2026.
Abstract The auroral electrojet (AE) index is a key indicator of high latitude geomagnetic activity and is widely used in operational space weather monitoring, yet forecasting AE from upstream solar wind conditions remains challenging due to nonlinear coupling, internal magnetospheric dynamics, and multiscale variability.
Cara L. Waters, Christopher H. K. Chen, Mathew J. Owens   +2 more
wiley   +1 more source

Turbulent Heating of Solar Wind Plasma Downstream of Magnetohydrodynamic Shocks

The Astrophysical Journal
Interplanetary (IP) shocks are believed to play a significant role in both amplifying the background level of turbulent fluctuations and in heating the bulk solar wind (SW). This study investigates the thermodynamic properties downstream of IP shocks. We
Alexander Pitňa, Jana Šafránková, Zdeněk Němeček, Gilbert Pi, Gary Zank, Lingling Zhao, Laxman Adhikari, Masaru Nakanotani   +7 more
doaj   +1 more source

Frequency‐Dependent Acoustic Reflection Coefficients of Flat Ground Assessed Using the Sonic Boom From the OSIRIS‐Rex Sample Return Capsule Recorded on Free Flying Balloons

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Low frequency sound can travel great distances in planetary atmospheres. When these waves reflect off the air/ground interface, energy may be absorbed or transferred to mechanical waves in the subsurface. This study describes the direct and reflected acoustic wave generated by the re‐entry of the OSIRIS‐REx Sample Return Capsule captured on a ...
Daniel C. Bowman, Jonathan M. Lees, Siddharth Krishnamoorthy, Elizabeth A. Silber, Jacob S. Izraelevitz, Ashish Goel, Emalee Hough, Zach Yap, Mirza Samnani, Michael J. Fleigle, Justin R. LaPierre, James A. Cutts, Attila Komjathy   +12 more
wiley   +1 more source

Modification of the Power Spectral Density of Magnetic Field Fluctuations by Quasi-perpendicular Interplanetary Shocks

The Astrophysical Journal Letters
We investigate the role of interplanetary (IP) shocks in solar wind turbulence using observations of Solar Orbiter, Parker Solar Probe, and Wind. Employing statistical analysis of quasi-perpendicular fast forward (FF) and fast reverse (FR) shocks, we ...
Byeongseon Park, Alexander Pitňa, Jana Šafránková, Zdeněk Němeček   +3 more
doaj   +1 more source