Results 111 to 120 of about 69,455 (207)

Field‐Aligned Currents and Auroral Precipitation During the Terrestrial Alfvén Wing State

open access: yesGeophysical Research Letters, Volume 52, Issue 12, 28 June 2025.
Abstract When sub‐Alfvénic (Alfvén Mach number MA< ${\mathrm{M}}_{A}< $1) plasmas impact Earth, Alfvén wings (AWs) develop. A Multiscale Atmosphere Geospace Environment simulation of the April 2023 storm, validated by Active Magnetosphere and Planetary Electrodynamics Response Experiment data, reveals the field‐aligned‐current (FAC) generation ...
B. L. Burkholder   +5 more
wiley   +1 more source

The earth's trapped radiation belts [PDF]

open access: yes
The near-earth charged particle environment is discussed in terms of spacecraft design criteria.
Mcelroy, M. B., Noll, R. B.
core   +1 more source

Impact of Increasing Greenhouse Gases on the Ionosphere and Thermosphere Response to a May 2024‐Like Geomagnetic Superstorm

open access: yesGeophysical Research Letters, Volume 52, Issue 12, 28 June 2025.
Abstract The Community Earth System Model (CESM) Whole Atmosphere Community Climate Model with thermosphere‐ionosphere eXtension (WACCM‐X) is used to investigate how the ionosphere‐thermosphere response to a May 2024‐like geomagnetic storm changes with increasing greenhouse gases.
Nicholas M. Pedatella   +4 more
wiley   +1 more source

H-alpha synoptic charts of solar activity during the first year of solar cycle 20, October 1964 - August 1965 [PDF]

open access: yes
Solar activity during the period October 28, 1964 through August 27, 1965 is presented in the form of charts for each solar rotation constructed from observations made with the chromospheric H-alpha spectra line.
Mcintosh, P. S.
core   +1 more source

Solar variability, weather, and climate [PDF]

open access: yes
Advances in the understanding of possible effects of solar variations on weather and climate are most likely to emerge by addressing the subject in terms of fundamental physical principles of atmospheric sciences and solar-terrestrial physis.

core   +1 more source

A basing of the diffusion approximation derivation for the four-wave kinetic integral and properties of the approximation [PDF]

open access: yesNonlinear Processes in Geophysics, 2002
A basing of the diffusion approximation derivation for the Hasselmann kinetic integral describing nonlinear interactions of gravity waves in deep water is discussed.
V. G. Polnikov
doaj  

Re-evaluation of cosmic ray cutoff terminology [PDF]

open access: yes
The study of cosmic ray access to locations inside the geomagnetic field has evolved in a manner that has led to some misunderstanding and misapplication of the terminology originally developed to describe particle access.
Byrnak, B.   +8 more
core   +1 more source

Numerical simulation of helical-vortex effects in Rayleigh-Bénard convection [PDF]

open access: yesNonlinear Processes in Geophysics, 2006
A numerical approach is substantiated for searching for the large-scale alpha-like instability in thermoconvective turbulence. The main idea of the search strategy is the application of a forcing function which can have a physical interpretation.
G. V. Levina, I. A. Burylov
doaj  

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