Results 61 to 70 of about 1,966 (233)
Turbulence of Tropical Cyclones: From Peristrophic to Zonostrophic
Journal of Geophysical Research: Atmospheres, Volume 130, Issue 14, 28 July 2025.Abstract Cyclostrophic rotation in the core region of tropical cyclones (TCs) imprints a distinct signature upon their turbulence structure. Its intensity is characterized by the radius of maximum wind, Rmw ${R}_{mw}$, and the azimuthal wind velocity at that radius, Umax ${U}_{max}$.
Boris Galperin +3 more
wiley +1 more source
Exploring Solar Granulation: from IMaX/SUNRISE to DKIST
Proceedings of the International Florida Artificial Intelligence Research Society ConferenceGranules are small cellular structures that populate the solar photosphere and are formed by the dynamic behavior of convection cells. This constant motion generates an evolving pattern of diverse granule types and intergranular regions across the ...
Reza Mansouri +2 more
doaj +1 more source
Solar photospheric spectrum microvariability
8 pages, 3 figures. To appear in Proceedings of IAU Symposium 400 (Solar and Stellar Multi-scale Activity; Medell\'in, July 2025), Cambridge University ...
Dravins, Dainis, Ludwig, Hans-Günter
openaire +2 more sources
Dynamical effects in solar photospheric flux tubes [PDF]
Astrophysics and Space Science, 1996 AbstractThe interaction of an intense flux tube, extending vertically through the photosphere, with p-modes in the ambient medium is modelled by solving the time dependent MHD equations in the thin flux tube approximation. It is found that a resonant interaction can occur, which leads to the excitation of flux tube oscillations with large amplitudes ...
openaire +1 more source
Slow Solar Wind: Origin in an Independent Small‐Scale Solar Dynamo
Geophysical Research Letters, Volume 52, Issue 13, 16 July 2025.Abstract Separation of the solar wind (SW) into three flow types (coronal mass ejections (CMEs), high speed streams (HSSs), and slow solar wind (SSW)) reveals an inverse relationship between the percentage of time Earth spends in SSW during a year and its annually averaged magnetic field strength (B).
E. W. Cliver +2 more
wiley +1 more source
Temporal evolution of small-scale internetwork magnetic fields in the solar photosphere (Corrigendum) [PDF]
, 2021 R. J. Campbell +7 more
openalex +1 more source
The Astrophysical JournalThe ubiquitous 5 minute solar p -mode oscillations, excited at the photosphere, play a crucial role in driving various coronal instabilities and mediating upward energy transport. These modes are strongly influenced by nonthermal electron populations. To
Souvik Das, Pralay Kumar Karmakar
doaj +1 more source
Iron Abundance in the Solar Photosphere: The Role of Ions, Non-LTE, Model Atmospheres, Oscillator Strengths, and Free Parameters [PDF]
, 2022 Floe Foxon
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Vortices in the solar photosphere
, 2012 Using numerical simulations of the magnetised solar photosphere and radiative diagnostics of the simulated photospheric models, we further analyse the physical nature of magnetic photospheric intergranular vortices. We confirm the magnetic nature of the vortices and find that most MHD Umov-Poynting flux is produced by horizontal vortex motions in the ...
Shelyag, S. +4 more
openaire +2 more sources
Multi-height probing of horizontal flows in the solar photosphere
Astronomy & AstrophysicsContext. Optical flow methods aim to infer horizontal (transverse, in the general case) velocities in the solar atmosphere from the temporal changes in maps of physical quantities, such as intensity or magnetic field.
Kostić T. +6 more
doaj +1 more source