Results 31 to 40 of about 600 (183)

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

What Determines the Brightness of the Magnetically Open Solar Corona?: Insights from Three-dimensional Radiative Magnetohydrodynamic Simulations and Observations

The Astrophysical Journal
We investigate the relationship between solar coronal holes and open-field regions using three-dimensional radiative magnetohydrodynamic simulations combined with remote-sensing observations from the Solar Dynamics Observatory (SDO).
Haruhisa Iijima
doaj   +1 more source

Living Crystallization‐Driven Self‐Assembly: Entering an Era of Functional Customization

Aggregate, Volume 7, Issue 7, July 2026.
Living CDSA achieves fine regulation of nanostructures when adopting block copolymers as basic units. Researchers can realize functional customization by means of intrinsic design, exogenous modification, and surface engineering. The developed multifunctional nanomaterials find wide applications in catalysis, optoelectronics, and biomedicine.
Chenchen Gao, Yao Lu, Zhenyan Ji, Peiwen Wang, Xiaomin Cai, Jiawei Tao, Huibin Qiu   +6 more
wiley   +1 more source

Temperature of the Polar Inner Heliosheath: Connection to Solar Activity

The Astrophysical Journal, 2023
We study the thermodynamics of the plasma protons in the polar regions of the inner heliosheath (IHS) and its connection with solar activity over solar cycle 24.
G. Livadiotis, D. J. McComas, E. J. Zirnstein   +2 more
doaj   +1 more source

The Photospheric Footpoints of Solar Coronal Hole Jets [PDF]

The Astrophysical Journal, 2021
Abstract We study the photospheric footpoints of a set of 35 coronal jets in a coronal hole as observed by Hinode/EIS. We use SDO/AIA data to coalign the spectroscopic EIS data with SDO/HMI line-of-sight magnetograms and calculate the plane-of-sky flow field using local correlation tracking (LCT) on SDO/HMI white light images.
openaire   +1 more source

Interplanetary Tracking of the 23 March 2024 CME: Computer Tomographic Analyses of IPS, White‐Light, and Type II Radio Burst Observations

Journal of Geophysical Research: Space Physics, Volume 131, Issue 7, July 2026.
Abstract We analyze the propagation of a coronal mass ejection (CME) observed on 23 March 2024, at 01:25 UT by SOHO/LASCO using a multi‐instrument and multi‐method approach. The study combines Interplanetary Scintillation (IPS), type II radio bursts, white‐light, in‐situ observations, and 3D tomographic reconstruction of the inner heliospheric density.
G. Baron, E. Aguilar‐Rodríguez, O. Chang, M. M. Bisi, B. V. Jackson, J. C. Mejía‐Ambriz, R. A. Fallows, Whitham D. Reeve, C. Monstein, Javier Bussons Gordo, Manuel Prieto Mateo   +10 more
wiley   +1 more source

Validation of Long-term Solar Coronal Modeling Using FORWARD

The Astrophysical Journal Supplement Series
This research aims to evaluate the capabilities of two of the most widely used coronal models over multiple solar cycles and to study variations in solar coronal structures over an extended period across multiple channels. We have created a comprehensive
Gergely Koban, Judit Szente, Bart van der Holst, Gabor Toth, Enrico Landi   +4 more
doaj   +1 more source

What drives solar-EUV jets seen in equatorial coronal holes?

Results in Physics, 2016
Recent observations of jets in solar coronal holes that include multi-wavelength data such as EUV movies have shown that most of those jets are not driven in the way suggested by the standard model.
M.L. Adams, R.L. Moore
doaj   +1 more source

Study of the solar coronal hole rotation

Advances in Space Research, 2018
Abstract Rotation of coronal holes is studied using data from SDO/AIA for 2014 and 2015. A new approach to the treatment of data is applied. Instead of calculated average angular velocities of each coronal hole centroid and then grouping them in latitudinal bins for calculating average rotation rates of corresponding latitudes, we compiled instant ...
N.B. Oghrapishvili, S.R. Bagashvili, D.A. Maghradze, T.Z. Gachechiladze, D.R. Japaridze, B.M. Shergelashvili, T.G. Mdzinarishvili, B.B. Chargeishvili   +7 more
openaire   +2 more sources

The UK Met Office’s Coronal Mass Ejection (CME) Ensemble Prediction System

Space Weather, Volume 24, Issue 7, July 2026.
Abstract We describe the 24‐member Coronal Mass Ejection (CME) ensemble prediction system that is used operationally at the UK's Met Office Space Weather Operations Center (MOSWOC) to forecast the arrival time of CMEs at Earth. The ensemble system was built on ad‐hoc assumptions and there is the need to investigate whether the technique can be improved
Siegfried Gonzi, D. R. Jackson, F.‐X. Bocquet, V. J. Pizzo, E. Adamson, G. Millward, A. R. Marble, D. Odstrcil, C. N. Arge   +8 more
wiley   +1 more source