Results 71 to 80 of about 1,392 (166)

Ionospheric Characterization Over Iran Using Multi‐Frequency IMB HF Transmitters and Global WSPRNET Reception During the 12 November 2025 Geomagnetic Storm

Space Weather, Volume 24, Issue 6, June 2026.
Abstract The Ionospheric Monitoring Beacon network in Iran provides continuous, multi‐frequency high‐frequency (HF) transmissions using WSPRNET modulation, enabling global reception and near–real‐time monitoring of ionospheric propagation conditions.
A. Mahmoudian, Saba Hafizi Lotfabadi, Mohammad Azimi   +2 more
wiley   +1 more source

Harnessing Satellite Constellations as Signals of Opportunity for an Enhanced Specification of the Satellite Drag Environment in the Critical LEO Regime

Space Weather
Enhancing the accuracy of orbit predictions for low‐Earth orbit (LEO) satellites and debris is vitally important for satellite owner/operators dedicated to ensuring the safety and sustainability of the LEO environment.
D. J. Fitzpatrick, E. K. Sutton, M. D. Pilinski, S. E. Palo   +3 more
doaj   +1 more source

Climatology of globally averaged thermospheric mass density [PDF]

Journal of Geophysical Research: Space Physics, 2010
We present a climatological analysis of daily globally averaged density data, derived from orbit data and covering the years 1967–2007, along with an empirical Global Average Mass Density Model (GAMDM) that encapsulates the 1986–2007 data. The model represents density as a function of the F10.7 solar radio flux index, the day of year, and the Kp ...
J. T. Emmert, J. M. Picone
openaire   +1 more source

Advancing Heliophysics and Space Weather Modeling Through Open Science

Space Weather, Volume 24, Issue 6, June 2026.
Abstract We present a community‐wide effort to develop a strategy and action plan to advance heliophysics and space weather modeling through open science. While open science has the potential to enhance the quality and pace of scientific discovery, its application to scientific modeling requires more careful consideration regarding open data and open ...
C. Corti, M. M. Kuznetsova, M. A. Reiss, J. Yue, J. Karpen, C. N. Arge, F. Bacchini, C. Bard, S. Bruinsma, R. M. Caplan, L. K. S. Daldorff, P. J. Deka, C. R. DeVore, S. Elvidge, N. Ganushkina, J. D. Huba, B. V. Jackson, V. Jordanova, J. A. Linker, H. Liu, J. G. Luhmann, S. Markidis, P. Mayank, V. Merkin, N. Moens, D. Odstrcil, Y. A. Omelchenko, M. Palmroth, S. Poedts, A. J. Ridley, Y. Shou, V. Tenishev, D. R. Themens, G. Toth, W. Wang, R.‐P. Wilhelm, M. A. Young, B. Cecconi, M.‐Y. Chou, D. De Zeeuw, G. L. Delzanno, C. Didigu, M. El Alaoui, S. Fung, J. Green, Z. Huang, L. K. Jian, L. J. Landwer, M. Lesko, P. MacNeice, A. Masson, M. L. Mays, P. M. Mehta, M. S. Miesch, E. Palmerio, M. Petrenko, E. Provornikova, L. Rastätter, L. Rusaitis, N. Sachdeva, E. Samara, D. Sur, A. Taktakishvili, J. Topper, T. Tsui, C. Verbeke, J. Wang, C. Wiegand, M. Wiltberger, Y. Zheng, M. M. Bisi, M. K. Georgoulis, T. Kodikara, T. Pulkkinen, A. Chartier, D. da Silva, A. Faturahman, K. Garcia‐Sage, D. Kondrashov, V. E. Ledvina, W. Liu, C. Pandey, E. Resnick, C. Shi, R. S. Weigel, K. Whitman, I. Zakharenkova, K. Zhang   +87 more
wiley   +1 more source

Unsupervised Deep Representation Learning for Infrasound Phase Identification

Earth and Space Science, Volume 13, Issue 6, June 2026.
Abstract Infrasound phase identification is challenging because atmospheric variability strongly influences signal propagation on short timescales that are not resolved by standard atmospheric models. While traditional approaches rely on propagation modeling and array‐derived parameters, recent work suggests that waveform structure itself encodes ...
Miro Ronac Giannone, Stephen Arrowsmith, Gil Averbuch   +2 more
wiley   +1 more source

Thermospheric density variations during extreme geomagnetic storms and their potential impact on the orbit of the China space station

Frontiers in Astronomy and Space Sciences
Temporal variation and spatial distribution of the thermospheric density can change significantly during geomagnetic storms. These variations in thermospheric density enhance atmospheric drag, posing risks to Low-Earth-Orbit (LEO) spacecraft.
Kun Zhang, Kun Zhang, Yanshi Huang, Yanshi Huang, Fengsi Wei, Fengsi Wei, Pingbing Zuo, Pingbing Zuo, Hao Yang, Jinlong Ji, Zehao Chen   +10 more
doaj   +1 more source

Impacts of E‐Region Neutral Wind Shear on Equatorial Plasma Bubbles: SAMI3 Simulations Including Metal Ions

Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract The vertical shear of horizontal neutral winds plays an important role in forming dense metallic layers in the E region. Previous studies suggest that metal ion layers may inhibit equatorial plasma bubble (EPB) development by enhancing E‐region Pedersen conductivity.
Minjing Li, Yue Deng, Joseph D. Huba, Zihan Wang   +3 more
wiley   +1 more source

An empirical model of long-term thermospheric density change

, 2012
Predicting the positions of satellites in Low Earth Orbit (LEO) requires a comprehensive understanding of the dynamic nature of the atmosphere. For objects in LEO the most significant orbit perturbation is atmospheric drag, which is a function of the ...
Saunders, Arrun, Saunders, A.
core  

Drivers of F‐Region Ionosphere Tidal Variability Caused by the Madden Julian Oscillation: Separating E‐Region Dynamo and Field‐Aligned Wind Effects

Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract The Madden–Julian Oscillation (MJO), a recurring intraseasonal (30–96 days) disturbance in the troposphere, strongly influences the E‐region and F‐region ionosphere through its modulation of atmospheric tides. Among these, the diurnal eastward wave number 3 (DE3) tide, driven by MJO‐modulated latent heating, carries MJO signals upward into the
Deepali Aggarwal, Jens Oberheide, B. C. Martinez, Xian Lu, Sunil Kumar   +4 more
wiley   +1 more source

An index description of the general characteristics of thermospheric density based on the Two-Line-Element datasets and the Spectral Whitening Method

<p>Data and code used in "An index description of the general characteristics of thermospheric density based on the Two-Line-Element datasets and the Spectral Whitening Method"</p ...
Wu, Yihan
core   +1 more source