Results 51 to 60 of about 1,743 (137)

Monitoring the Solar Wind Before It Reaches L1

Space Weather, Volume 23, Issue 11, November 2025.
Abstract Space weather predictions of the solar wind impacting Earth are usually first based on remote‐sensing observations of the solar disc and corona, and eventually validated and/or refined with in situ measurements taken at the Sun–Earth Lagrange L1 point, where real‐time monitoring probes are located.
Erika Palmerio
wiley   +1 more source

The Error Estimation of Transverse Coronal Loop Oscillation Parameters Based on Least Chi-squares Fitting

The Astrophysical Journal Supplement Series
Transverse oscillations of coronal loops not only influence coronal dynamics, but also provide a new perspective for coronal detection. To enhance their exploitation and utilization, accurately estimating the oscillation parameters is crucial.
Hongbo Li, Hengqiang Feng, Zhanjun Tian, Qiangwei Cai, Guoqing Zhao, Yan Zhao   +5 more
doaj   +1 more source

Longitudinal oscillations in density stratified and expanding solar waveguides

, 2012
Waves and oscillations can provide vital information about the internal structure of waveguides they propagate in. Here, we analytically investigate the effects of density and magnetic stratification on linear longitudinal magnetohydrodynamic (MHD) waves.
Andries, De Pontieu, DeForest, Fujimura, G. Verth, Kliem, Lin, Luna-Cardozo, M. Luna-Cardozo, Mariska, Mariska, Mathioudakis, Mendoza-Briceño, Mendoza-Briceño, Polyanin, R. Erdélyi, Ruderman, Sigalotti, Tsuneta, Uchida, Verth, Verth, Wang   +22 more
core   +1 more source

The Performance of DIXSG on Characterizing Global and Regional Ionospheric Disturbances Utilizing Geodetic Receiver Network‐A Case Study

Space Weather, Volume 23, Issue 10, October 2025.
Abstract As the 25th solar cycle enters a highly active phase, the resulting ionospheric irregularities induce disturbances in signals of Global Navigation Satellite System (GNSS), significantly disrupting its global stable positioning, navigation, and timing services.
Dongsheng Zhao, Xueli Zhang, Peicheng Zhang, Hao Liu, Kefei Zhang, Wang Li, Andong Hu, Longjiang Li, Shuanglei Cui, Yuhao Hou, Craig M. Hancock, Andrzej Krankowski   +11 more
wiley   +1 more source

Measuring the Coronal Magnetic Field with 2D Coronal Seismology: A Forward-modeling Validation

The Astrophysical Journal Supplement Series
In recent years, a two-dimensional (2D) coronal seismology technique applied to spectral-imaging data from the Coronal Multi-channel Polarimeter (CoMP) and Upgraded Coronal Multi-channel Polarimeter (UCoMP) has enabled routine measurement of the global ...
Zihao Yang, Matthias Rempel, Sarah Gibson, Giuliana de Toma   +3 more
doaj   +1 more source

Motion magnification in coronal seismology [PDF]

, 2016
We introduce a new method for the investigation of low-amplitude transverse oscillations of solar plasma non-uniformities, such as coronal loops, individual strands in coronal arcades, jets, prominence fibrils, polar plumes, and other contrast features ...
Anfinogentov, Sergey, Nakariakov, Valery M.   +1 more
core   +2 more sources

Characteristics of Large‐Scale Traveling Ionospheric Disturbances During the 10 May 2024 Geomagnetic Storm

Space Weather, Volume 23, Issue 10, October 2025.
Abstract Based on the total electron content (TEC) observation in the Asian‐Australian and American sectors, this paper investigates the characteristics and hemispheric asymmetry of large‐scale traveling ionospheric disturbances (LSTIDs) during the 10 May 2024 superstorm. We found that the amplitudes and meridional phase velocities of LSTIDs in the two
Tingwei Han, Huijun Le, Yuyan Yang, Wenbo Li, Wenjie Sun, Han Ma, Yijia Zhou, Bowei Liu, Rongjin Du, Libo Liu, Yiding Chen, Ruilong Zhang   +11 more
wiley   +1 more source

Enhanced Global Ionospheric Mapping Using Deep Ensemble Neural Networks With Uncertainty Quantification

Space Weather, Volume 23, Issue 7, July 2025.
Abstract Global ionospheric mapping is essential for ionospheric research. However, conventional approaches often struggle to accurately capture small‐scale ionospheric variations. This study proposes a deep ensemble method based on neural networks (NNs) that generates high‐accuracy global vertical total electron content (VTEC) maps along with ...
Shuyin Mao, Yuanxin Pan, Grzegorz Kłopotek, Matthias Schartner, Hana Krásná, Aletha de Witt, Benedikt Soja   +6 more
wiley   +1 more source

Thermally damped linear compressional waves in a 2D solar coronal model [PDF]

, 2007
The high resolution observations (TRACE and SOHO) of waves in coronal structures have revealed a rapid damping of modes, sometimes their damping length being of the same order as their wavelength. The rapid damping of modes in coronal loops permits us to
Ballai, I., Marcu, A., Orza, B.
core   +1 more source

A Two‐Step Method for Enhancing Thermospheric Mass Density Empirical Model

Space Weather, Volume 23, Issue 5, May 2025.
Abstract With the rapid development of Low Earth Orbit constellations, the importance of accurately estimating thermospheric mass density is steadily increasing. Current empirical models still exhibit unavoidable biases in estimating thermospheric mass density.
Yu Guo, Fei Guo, Xiaohong Zhang, Yan Yang, Dengkui Mei, Xiaodong Ren   +5 more
wiley   +1 more source