Results 81 to 90 of about 334,315 (204)

Modelling of the ring current in Saturn's magnetosphere [PDF]

Annales Geophysicae, 2004
Abstract. The existence of a ring current inside Saturn's magnetosphere was first suggested by Smith et al. (1980) and Ness et al. (1981, 1982), in order to explain various features in the magnetic field observations from the Pioneer 11 and Voyager 1 and 2 spacecraft. Connerney et al.
Giampieri, G., Dougherty, M. K.
openaire   +3 more sources

Quantifying Non‐Maxwellian Properties of Ion Populations During Reconnection at Earth's Magnetopause

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract We investigate ion velocity‐space features within the exhaust of magnetopause reconnection using a global hybrid‐Vlasov simulation. The Hermite transform and Gaussian Mixture Model (GMM) are applied to quantify the complexity of velocity‐space structures that arise during the mixing of magnetospheric and magnetosheath ion populations.
I. Zaitsev, K. Papadakis, L. Pänkäläinen, M. Alho, S. Hoilijoki, U. Ganse, T. Roos, M. Palmroth   +7 more
wiley   +1 more source

Enhanced Retrieval of Raindrop Size Distribution by Integrating Disdrometer Observations and Atmospheric Variables With Machine Learning

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Accurate representation of raindrop size distribution (DSD) is crucial for understanding precipitation microphysics and improving quantitative precipitation forecasting. Conventional methods in numerical models often prescribe the DSD shape parameter as a constant or derive it from empirical relationships based solely on disdrometer ...
Limin Lin, Huiling Yuan, Xuwei Bao, Shangshang Yang, Lin Deng, Shuai Zhang, Yuanming Zhao   +6 more
wiley   +1 more source

Altitude Dependence of Quasi‐Static Potential Drop: The Effect of Ionospheric Protons

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Using an improved kinetic model that incorporates cold ionospheric protons and oxygen ions, we investigate the factors controlling the altitude range of the auroral acceleration region (AAR). In this model, parallel electric fields are generated via Dispersive Alfven Wave‐ Modified electron Acoustic Wave (DAW‐MEAW) coupling and sustained by ...
Run Shi, Jun Liang, Zejun Hu, Desheng Han, Qinghe Zhang   +4 more
wiley   +1 more source

Chapman Conference on Magnetospheric Currents

Eos, Transactions American Geophysical Union, 1983
A Chapman Conference on Magnetospheric Currents was held in Irvington, Va, during April 5–8, 1983. The purpose of this conference was to bring together theoretical and experimental researchers and students interested in electric currents in the earth's and other planets′ magnetospheres.
T. A. Potemra, J. N. Barfield
openaire   +1 more source

Offsets in the geomagnetic indices of the magnetospheric ring current

Solar-Terrestrial Physics, 2021
The paper considers changes in the daily average values of the Dst, SYM-H, ASY-H, and ASY-D indices and their dependence on the level of magnetic disturbance for the period 1981–2016. These indices are geomagnetic characteristics of the magnetospheric ring current. It has been established that the indices of the asymmetric component of the ring current
openaire   +4 more sources

Magnetospheric and ionospheric vortices response to positive solar wind dynamic pressure pulse

Frontiers in Astronomy and Space Sciences
In this study, we present in-situ observations and global MHD simulations of a clockwise-rotating magnetospheric vortex in the dawnside magnetosphere, accompanied by a conjugate clockwise equivalent ionospheric currents (EICs) vortex following a positive
Huayu Zhao, Huayu Zhao, Huigen Yang, Xinming Chen, Zanyang Xing, Zejun Hu, Dehong Huang, Bin Li, Beichen Zhang, Jianjun Liu   +9 more
doaj   +1 more source

Three Dimensional Computer Modeling of Magnetospheric Substorm [PDF]

Journal of Astronomy and Space Sciences, 1989
Magnetospheric substorm in the magnetotail region is studied numericallu by means of a three dimensional MHD code. The analytic solution for the quiet magnetotail is employed as an initial configuration.
Kyoung W. Min
doaj  

Instrumental Artefacts Can Reverse Apparent Lightning–Climate Trends

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Lightning is an Essential Climate Variable, yet long‐term detection records may be compromised by changes in detection technology. Using more than three decades of Austrian lightning observations (1992–2024), we show that instrumental artefacts can reverse the apparent sign of lightning–climate trends.
Hannes Wieser, Wolfgang Schulz, Georg J. Mayr   +2 more
wiley   +1 more source

Current closure in the pulsar magnetosphere [PDF]

Monthly Notices of the Royal Astronomical Society: Letters, 2018
ABSTRACT Current closure in the pulsar magnetosphere holds the key to its structure. We must determine not only the global electric circuit, but also the source of its electric charge carriers. We address this issue with the minimum number of assumptions: (1) The magnetosphere is everywhere ideal and force free, except above the polar ...
openaire   +2 more sources