Results 71 to 80 of about 2,528 (188)

Predicting Geomagnetic Activity in the Ascending and Declining Phases of the Solar Cycle

Space Weather, Volume 24, Issue 8, August 2026.
Abstract Most predictions of space climate, that is, the long‐term behavior of the solar‐terrestrial environment, have focused on forecasting the 11‐year sunspot cycle. Geomagnetic activity, on the other hand, has mainly been predicted in shorter, space weather timescales of up to days to weeks.
Timo Qvick, Timo Asikainen, Kalevi Mursula   +2 more
wiley   +1 more source

Dual-stage Flare Prediction Using a Full-disk Flare Index: Trend-disturbance Decomposition and Hybrid Forecasting Model

The Astrophysical Journal Supplement Series
Accurate prediction of solar flares is essential for space weather warnings and safeguarding technological infrastructure. This study proposes a dual-stage flare prediction framework leveraging the full-disk flare index (FI).
Shuainan Yan, Yanxia Cai, Bingxian Luo, Liqin Shi, Yanmei Cui   +4 more
doaj   +1 more source

Small-scale and transient extreme ultraviolet kernels in solar flare ribbons

Astronomy & Astrophysics
Aims. Flare ribbons form when energy released by coronal magnetic reconnection is deposited in the low layers of the solar atmosphere. Therefore, by studying the dynamics of flare ribbons, one obtains an indirect measurement of reconnection in the corona.
Collier H., Krucker S., Hayes L. A., Kraaikamp E., Berghmans D., Ryan D. F.   +5 more
doaj   +1 more source

Shade is a team effort in a South African forest‐savanna mosaic

Journal of Ecology, Volume 114, Issue 8, August 2026.
This study examined whether individual or ecosystem‐level traits are responsible for excluding shade‐intolerant grasses in forest understorey by developing a physical model to predict shade cast by the crown of an individual tree, and the canopy of densely packed trees.
Margaret W. Simon, Madelon F. Case, A. Carla Staver   +2 more
wiley   +1 more source

Cultural geography of heat: Artistic experiments with heat’s animacies

Geographical Research, Volume 64, Issue 3, August 2026.
A sustained, cultural geographical engagement with heat is long overdue. I advance this agenda by engaging with the work of contemporary artists. Artists are responding to uneven conditions of global heating by exploring heat’s animacies: how heat interweaves with the practices and textures of life.
Sasha Engelmann
wiley   +1 more source

Prolonged Photosensitivity Following Exposure to Glyphosate Herbicide

Photodermatology, Photoimmunology &Photomedicine, Volume 42, Issue 5, September 2026.
Jean Ayer, Donna Parkin, Lesley E. Rhodes   +2 more
wiley   +1 more source

Response of Topside Ionospheric Electron Density During Solar Flares Using 2014–2024 Swarm Satellite Measurements

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract This paper presents a global statistical investigation into the topside ionosphere electron density response to X‐class solar flares during geomagnetically quiet conditions (Kp ≤ $\mathit{\le }$ 2) using Swarm satellites (462–511 km) data from 2014 to 2024.
Kenny Palo Monontsi, John Bosco Habarulema, Alessio Pignalberi, Christopher Dzivhuluwani Ndiitwani   +3 more
wiley   +1 more source

Physics‐Embedded Deep Learning Reveals the Memory Effect of Ionospheric Electron Density in Response to Solar EUV Forcing

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Precise characterization of the electron density profile is crucial for optimizing high frequency communications. Reconstruction models often assume an instantaneous ionospheric response to solar forcing or using time delays, neglecting the time‐integrated cumulative “memory effect” of plasma dynamics.
Hongwei Gong, Hanxian Fang, Die Duan, Chao Xiao, Jintai Li, Chenghao Li, Hongtao Huang, Ganming Ren, Chuyue Zhou, Han Wu   +9 more
wiley   +1 more source

Disentangling Thermal and Abundance Characteristics in a Solar Flare Using SDO/AIA, Hinode/XRT, and MinXSS-1 Observations

The Astrophysical Journal
We investigate the thermal properties of a solar flare by the observations of the soft X-ray Telescope on board Hinode and the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory. Our analysis reveals a tenuous but hot plasma cloud
Xiaoyan Xie, Anna Chen, Crisel Suarez, Katharine K. Reeves, Soumya Roy, Christopher S. Moore, Nishu Karna, Joy Velasquez   +7 more
doaj   +1 more source

Solar Flare 1/f Fluctuations from Amplitude-Modulated Five-Minute Oscillation. [PDF]

Entropy (Basel), 2023
Morikawa M, Nakamichi A.
europepmc   +1 more source