Results 51 to 60 of about 449 (162)

YOLO‐Based Detection and Localization of Rocket Induced Traveling Ionospheric Disturbances

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract During rocket launches, atmospheric disturbances significantly impact the ionosphere, generating Traveling Ionospheric Disturbances (TIDs). These disturbances can affect radio communications and navigation systems and may pose risks to high‐speed aerospace vehicles.
Zhou Chen, Jiahao Zeng, Jing‐Song Wang, Yan Guo, Cunqun Fan, Fabao Yan, Hui Zhu   +6 more
wiley   +1 more source

An Ionospheric Storm Scale Index Based on TEC: Comparative Analysis for China Region

Space Weather, Volume 24, Issue 8, August 2026.
Abstract Defining a standardized ionospheric storm scale is challenging given the ionosphere's inherent complexity and susceptibility to multiple driving factors. In this study, a novel ionospheric storm scale (ISS) index is developed based on statistical analysis of total electron content (TEC) data from 257 ground‐based GNSS stations across China ...
Shuangshuang Shi, Yunfei Shi, Kefei Zhang, Bingfeng Tan, Fucheng Song, Peng Sun, Yu Li, Yifan Liu, Shouxing Zhao   +8 more
wiley   +1 more source

Tsunami Traveling Ionospheric Disturbances Triggered by the 29 July 2025 Mw 8.8 Kamchatka Earthquake Observed in Japan and Taiwan

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract The 29 July 2025 Mw 8.8 Kamchatka earthquake generated notable seismic and tsunami waves. The total electron content (TEC) derived by more than 1,400 ground‐based global navigation satellite system (GNSS) receiving stations in Japan and Taiwan is employed to examine the spatiotemporal evolution of seismic‐ and tsunami‐traveling ionospheric ...
Chun‐Yen Huang, Jann‐Yenq Liu, Chi‐Yen Lin, Tatsuhiro Yokoyama, Kenji Satake, Tien‐Chi Liu, Tung‐Yuan Hsiao, Charles Chien‐Hung Lin, Chia‐Hung Chen   +8 more
wiley   +1 more source

Multi-TID detection and characterization in a dense Global Navigation Satellite System receiver network [PDF]

, 2017
The medium-scale traveling ionospheric disturbances (MSTIDs) constitute the most frequent ionospheric wave signatures. We propose a method for detecting the number of simultaneous MSTIDs from a time series of high-pass-filtered Vertical Total Electron ...
Monte Moreno, Enrique, Enrique Monte-Moreno, Yang, Heng, Heng Yang, Manuel Hernández-Pajares, Hernández Pajares, Manuel   +5 more
core   +1 more source

How the 29 July 2025 M8.8 Kamchatka Earthquake Shook the Ionosphere Over Japan

Journal of Geophysical Research: Space Physics, Volume 131, Issue 7, July 2026.
Abstract This study investigates the mid‐field (∼1,100–3,800 km) ionospheric response to the 29 July 2025 Kamchatka earthquake over Japan using multi‐instrument observations, raytracing, and numerical simulations. Total electron content (TEC) observations from GPS satellite G04 and Galileo satellite E10 show a maximum TEC perturbation of ∼0.5–0.85 TECU
R. K. Barad, E. Astafyeva, S. A. Sanchez, E. A. Kherani, I. D. Ouar, C. Maréchal   +5 more
wiley   +1 more source

Investigation into the earliest generation of medium-scale traveling ionospheric disturbances with electrodynamic signatures using dense GNSS observations over Japan

Earth, Planets and Space
Understanding the earliest formation stages of medium-scale traveling ionospheric disturbances (MSTIDs) with electrodynamic signatures (commonly referred to as nighttime MSTIDs) is essential for comprehending their full development.
Weizheng Fu, Yuichi Otsuka, Tatsuhiro Yokoyama, Zezhong Li, Mamoru Yamamoto, Michi Nishioka, Hidekatsu Jin, Keisuke Hosokawa, Claudia Stolle   +8 more
doaj   +1 more source

Multi‐Step Gravity Wave Propagation From a Tropospheric Vortex to the Ionosphere Near the Tibetan Plateau

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract The atmosphere and ionosphere form a vertically coupled system in which disturbances in the lower atmosphere can modulate ionospheric variability. Using reanalysis data, ground‐based GNSS observations, and COSMIC‐2 profiles, we investigate gravity waves (GWs) generation and upward coupling during a southwest vortex (SWV) event over the Tibetan
Wei Yao, Huijun Le, Wenjie Sun, Libo Liu, Yiding Chen   +4 more
wiley   +1 more source

Comparative statistical study of mid-latitude MSTIDs over two latitudinal regions using dense GNSS network

, 2021
This work is devoted to potential sources and mechanisms of the mid-latitude MSTIDs formation based on the analysis and comparison of statistical data in two regions: 1 region near Samara ( 55 N. 50 E), 2 region near Sevastopol ( 45 N, 35 E).
Sherstyukov R.O., Akchurin A.D., Sherstyukov O.N.   +2 more
core  

Nighttime Midlatitude E‐F Coupling in Geomagnetic Conjugate Ionospheres: A Double Thin Shell Model and a Multi‐Source Data Investigation [PDF]

, 2023
Geomagnetic conjugate mid-latitude nighttime ionospheres are frequently simultaneously populated with electrified nighttime medium-scale traveling ionospheric disturbances (MSTIDs).
Tatsuhiro Yokoyama, Ssessanga, Nicholas, Yokoyama, Tatsuhiro, Ma, Guanyi, Guanyi Ma, Weizheng Fu, Nicholas Ssessanga, Mamoru Yamamoto, Fu, Weizheng, Yamamoto, Mamoru   +9 more
core   +1 more source

Periodic waves in the lower thermosphere observed by OI630 nm airglow images [PDF]

Annales Geophysicae, 2016
Periodic wave structures in the thermosphere have been observed at São João do Cariri (geographic coordinates: 36.5° W, 7.4° S; geomagnetic coordinates based on IGRF model to 2015: 35.8° E, 0.48° N) from September 2000 to November 2010 using OI630.0 ...
I. Paulino, A. F. Medeiros, S. L. Vadas, C. M. Wrasse, H. Takahashi, R. A. Buriti, D. Leite, S. Filgueira, J. V. Bageston, J. H. A. Sobral, D. Gobbi   +10 more
doaj   +1 more source