Results 11 to 20 of about 395,689 (219)

Partitioning Hückel–London Currents into Cycle Contributions

open access: yesChemistry, 2021
Ring-current maps give a direct pictorial representation of molecular aromaticity. They can be computed at levels ranging from empirical to full ab initio and DFT.
Wendy Myrvold   +2 more
doaj   +1 more source

Concurrent Empirical Magnetic Reconstruction of Storm and Substorm Spatial Scales Using Data Mining and Virtual Spacecraft

open access: yesFrontiers in Physics, 2021
Data mining (DM) has ushered in a new era of empirical magnetic reconstructions of the magnetosphere via application of the k-nearest neighbors (kNN) method.
Grant K. Stephens, Mikhail I. Sitnov
doaj   +1 more source

Evolutions of equatorial ring current ions during a magnetic storm

open access: yesEarth and Planetary Physics, 2020
In this paper, we present evolutions of the phase space density (PSD) spectra of ring current (RC) ions based on observations made by Van Allen Probe B during a geomagnetic storm on 23–24 August 2016.
Zheng Huang, ZhiGang Yuan, XiongDong Yu
doaj   +1 more source

SIMULATION STUDY OF THE ENERGETIC NEUTRAL ATOM (ENA) IMAGING MONITORING OF THE GEOMAGNETOSPHERE ON A LUNAR BASE

open access: yesSolar-Terrestrial Physics, 2021
Since the moon’s revolution cycle is exactly the same as its rotation cycle, we can only see the moon always facing Earth in the same direction. Based on the clean particle radiation environment of the moon, a neutral atomic telemetry base station could ...
Li Lu   +6 more
doaj   +1 more source

Another way of deriving the ring current decay time during disturbed periods

open access: yesAnnals of Geophysics, 1995
Coupling parameter, E, and the total energy dissipated by the magnetosphere, UT, are determined for six disturbed periods, following three known criteria for UT computation.
J. R. Manzano, M. M. Zossi de Artigas
doaj   +1 more source

Ring current dynamics in the Earth's inner magnetosphere

open access: yes地球与行星物理论评, 2022
The terrestrial ring current, flowing near the equator at the altitude of 2 RE~7 RE, is one of the most significant electric current systems of the Earth's magnetosphere.
Yan Zhuang, Chao Yue
doaj   +1 more source

Quantifying adiabatic motion in the outer radiation belt and ring current with invariant matching

open access: yesFrontiers in Astronomy and Space Sciences
Adiabatic motion is a fundamental reversible process for geomagnetically trapped particle populations, including particles comprising the ring current and radiation belts.
D. E. da Silva   +3 more
doaj   +1 more source

Magnetosonic Harmonic Falling and Rising Frequency Emissions Potentially Generated by Nonlinear Wave‐Wave Interactions in the Van Allen Radiation Belts

open access: yesGeophysical Research Letters, 2018
Magnetosonic waves play a potentially important role in the complex evolution of the radiation belt electrons. These waves typically appear as discrete emission lines along the proton gyrofrequency harmonics, consistent with the prediction of the local ...
Nigang Liu   +4 more
doaj   +1 more source

Severe magnetic storm effects in the ionosphere over Istanbul:a case study

open access: yesAnnals of Geophysics, 2002
The present study concentrates on the effects on the ionosphere of an individual severe magnetic Storm of the Sudden Commencement (SSC)type,with SSC taking place in the daytime hours.The storm started on 29 October 1968 and went on to 2 November 1968 ...
H. Agopyan
doaj   +1 more source

The effects of particle injections on the ring current development during the 7-8 September 2017 geomagnetic storm

open access: yesFrontiers in Astronomy and Space Sciences, 2023
In this study we investigate the role of particle injections on the ring current development during the 7-8 September 2017 geomagnetic storm by applying a temporally and spatially varying data-driven outer boundary condition in numerical simulations of ...
C. P. Ferradas   +7 more
doaj   +1 more source

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