Results 31 to 40 of about 338 (148)

A statistical analysis of medium-scale traveling ionospheric disturbances during 2014–2017 using the Hong Kong CORS network

Earth, Planets and Space, 2019
We report a statistical study of medium-scale traveling ionospheric disturbances (MSTIDs) during 2014–2017 in the low-latitude China region using the Hong Kong Continuously Operating Reference Stations network with a baseline length of 10–15 km ...
Guanyi Chen, Chen Zhou, Yi Liu, Jiaqi Zhao, Qiong Tang, Xiang Wang, Zhengyu Zhao   +6 more
doaj   +1 more source

Long-Term Study on Medium-Scale Traveling Ionospheric Disturbances Observed over the South American Equatorial Region

Atmosphere, 2021
Using data collected by the GNSS dual-frequency receivers network, de-trended TEC maps were generated to identify and characterize the medium-scale traveling ionospheric disturbances (MSTIDs) over the South American equatorial region (latitude: 0∘ to 15∘
Patrick Essien, Cosme Alexandre Oliveira Barros Figueiredo, Hisao Takahashi, Cristiano Max Wrasse, Diego Barros, Nana Ama Browne Klutse, Solomon Otoo Lomotey, Toyese Tunde Ayorinde, Delano Gobbi, Anderson V. Bilibio   +9 more
doaj   +1 more source

Observations of conjugate MSTIDs using networks of GPS receivers in the American sector [PDF]

Radio Science, 2016
AbstractThis study has used total electron content (TEC) values from an extended network of GPS receivers and a highly developed processing to characterize the conjugacy of medium‐scale traveling ionospheric disturbances (MSTIDs) over the American continent.
C. E. Valladares, R. Sheehan
openaire   +1 more source

Evaluation of Oblique and Fork Traces in Ionograms as Indicators of MSTIDs and Their Relationship to the Development of Spread-F at European Mid-Latitudes

Atmosphere
Oblique and Fork-shaped traces in ionosonde’s ionograms have been identified as manifestations of nighttime and daytime Medium-Scale Traveling Ionospheric Disturbances (MSTIDs), respectively.
Krishnendu Sekhar Paul, David Altadill, Ankitha Nandakumar, Haris Haralambous, Tobias G. W. Verhulst, Tiju J. Mathew   +5 more
doaj   +1 more source

Statistical Characteristics of Nighttime Medium‐Scale Traveling Ionospheric Disturbances From 10‐Years of Airglow Observation by the Machine Learning Method

Space Weather, 2023
For the first time, we used the machine learning method to analyze the statistical occurrence and propagation characteristics of nighttime medium‐scale traveling ionospheric disturbances (MSTIDs) from October 2011 to December 2021 observed by the all‐sky
Chang Lai, Jiyao Xu, Zhishuang Lin, Kun Wu, Donghe Zhang, Qinzeng Li, Longchang Sun, Wei Yuan, Yajun Zhu   +8 more
doaj   +1 more source

Quantifying Nighttime Gravity Wave‐Driven Mesosphere‐Ionosphere Coupling Over CONUS Using NASA AWE Radiance and GNSS TEC Observations

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract We present the first coordinated study of nighttime mesosphere‐ionosphere coupling over the continental United States (CONUS) from January through November 2024 using NASA Atmospheric Waves Experiment (AWE) airglow measurements near 87 km and GNSS Total Electron Content observations near 300 km.
Sreelekshmi Radhakrishnan Girijakumary, Xian Lu   +1 more
wiley   +1 more source

Dynamic Evolution of a Storm‐Time “Super‐EPB” Event Over China on the Magnetically Disturbed Night of 01 December 2023

Space Weather, Volume 24, Issue 10, October 2026.
Abstract This paper investigates the dynamic evolution of a storm‐time “Super‐EPB” event over China on 1 December 2023 (Kp ≤ 7, SYM/H ≥ −130 nT) using multi‐instrument observations. Occurring near sunset as the IMF‐Bz abruptly turned southward, with auroral extension to midlatitudes, the “Super‐EPB” extended to 40°N with an apex height of ∼2,460 km ...
Longchang Sun, Jiyao Xu, Wei Yuan, Yajun Zhu, Maosheng He, Wenjie Sun, Guozhu Li, Jiaojiao Zhang, Hong Gao, Aibin Zhang, Weijun Liu, Guojun Wang   +11 more
wiley   +1 more source

Climatology of Ionospheric Variability with MSTID Periods Observed Using Grape V1 HF Doppler Receivers

, 2023
Medium-Scale Traveling Ionospheric Disturbances (MSTIDs) are quasi-periodic variations of ionospheric electron density that are often associated with Atmospheric Gravity Waves (AGWs).
Romanek, Veronica
core   +1 more source

Connections Between Stratospheric GWs, the Polar Vortex, and MSTIDs From Longitudinally Distinct Regions During Nine Arctic Winters

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract Midlatitude medium‐scale traveling ionospheric disturbances (MSTIDs) are a common source of ionospheric variability that may influence GNSS‐based positioning and can disrupt HF‐communication channels. Here, we present a comprehensive nine‐winter analysis (2014–2023) that establishes a robust connection between stratospheric gravity waves (GWs)
S. Derghazarian, L. Goncharenko, V. L. Harvey, S.‐R. Zhang, A. Coster, E. Becker, G. Kwon   +6 more
wiley   +1 more source

Intertropical Convergence Zone as the Possible Source Mechanism for Southward Propagating Medium-Scale Traveling Ionospheric Disturbances over South American Low-Latitude and Equatorial Region

Atmosphere, 2022
This paper presents the Intertropical Convergence Zone (ITCZ) as the possible source mechanism of the medium-scale traveling ionospheric disturbances (MSTIDs) propagating to the southeast direction over the South American region. Using the data collected
Patrick Essien, Cosme Alexandre Oliveira Barros Figueiredo, Hisao Takahashi, Nana Ama Browne Klutse, Cristiano Max Wrasse, João Maria de Sousa Afonso, David Pareja Quispe, Solomon Otoo Lomotey, Tunde Toyese Ayorinde, José H. A. Sobral, Moses Jojo Eghan, Samuel Sanko Sackey, Diego Barros, Anderson V. Bilibio, Francis Nkrumah, Kwesi Akumenyi Quagraine   +15 more
doaj   +1 more source