Results 51 to 60 of about 338 (148)

C/NOFS observations of electromagnetic coupling between magnetically conjugate MSTID structures [PDF]

Journal of Geophysical Research: Space Physics, 2016
AbstractThis report demonstrates empirically that couplings between magnetically conjugate medium‐scale traveling ionospheric disturbances (MSTIDs) are electromagnetic in nature. This is accomplished by comparing plasma density, electric, and magnetic perturbations sampled simultaneously by sensors on the Communication/Navigation Outage Forecasting ...
W. J. Burke, C. R. Martinis, P. C. Lai, L. C. Gentile, C. Sullivan, R. F. Pfaff   +5 more
openaire   +1 more source

PyDARNMUSIC/PyDARNMUSICWeb: Software for SuperDARN Medium Scale Traveling Ionospheric Disturbance Visualization and Analysis

, 2023
Scale Traveling Ionospheric Disturbances (MSTIDs) are quasi-periodic variations of the F-region ionosphere with periods of 15 to 60 minutes and horizontal wavelengths of a few hundred kilometers that are often associated with atmospheric gravity waves ...
Tholley, Francis
core   +1 more source

Synthetic‐Data‐Driven Supervised Learning for Pixel‐Wise Recognition of Ionogram Layer Traces

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.
Abstract The significance of automatic ionogram data interpretation is growing with the increasing number of ionosondes operating at minute‐level cadence. In recent years, deep‐learning models have substantially advanced ionogram pattern recognition. However, they typically require extensive labeled ionospheric data sets for training.
Ruslan Sherstyukov, Alexander Kozlovsky, Thomas Ulich, Samson Moges, Thomas Leyser   +4 more
wiley   +1 more source

On using a double-thin-shell approach and TEC perturbation component to sound night-time mid-latitude E–F coupling

Earth, Planets and Space, 2022
Observations and theoretical analysis on the night-time mid-latitude ionospheric irregularities support the postulation of frequently coupled E and F regions.
Weizheng Fu, Tatsuhiro Yokoyama, Nicholas Ssessanga, Mamoru Yamamoto, Peng Liu   +4 more
doaj   +1 more source

First Detection of the Two‐Dimensional Vertical Propagation of Traveling Ionospheric Disturbances Associated With Atmospheric Gravity Waves in the Martian Ionosphere

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract We report the detection of a traveling ionospheric disturbance (TID) captured by the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) Active Ionospheric Sounding (AIS) instrument aboard the Mars Express spacecraft at 150–250 km altitude.
Rong Tian, Beatriz Sánchez‐Cano, Chunhua Jiang, Mark Lester, Dikshita Meggi, Simon Joyce, Christopher M. Fowler, Andrea Cicchetti, Mats Holmstrom, David Andrews, Pedro Machado   +10 more
wiley   +1 more source

Solar activity dependence for the relationship between nighttime medium-scale traveling ionospheric disturbance and sporadic E (Es) layer activities in summer during 1998–2019 over Japan

Earth, Planets and Space
To investigate solar activity dependence of the coupling between medium-scale traveling ionosphere disturbance (MSTID) and sporadic E (Es) layer, we analyzed the total electron content (TEC) obtained from a Japanese global positioning system (GPS ...
Veera Kumar Maheswaran, Yuichi Otsuka, James A. Baskaradas, Venkata Ratnam Devanaboyina, Sriram Subramanian, Atsuki Shinbori, Takuya Sori, Michi Nishioka, Septi Perwitasari   +8 more
doaj   +1 more source

Airglow imager, GNSS-TEC, and Ionosonde data on 15 September 2018

, 2022
These datasets are related to an event observed by the Hanle imager in which multiple dark bands of MSTID were involved in two dynamic interactions.
Sarkhel, Sumanta, Kannaujiya, S., Yadav, Virendra, Patgiri, Dipjyoti, Mondal, Subarna, Vivek, Chiranjeevi G., Rathi, Rahul, Sunda, Surendra, Sunil Krishna, M. V., Upadhayaya, A. K.   +9 more
core   +1 more source

Conjugate Ionospheric Electron Density Irregularities Induced by Very Low Frequency Transmissions at North West Cape, Australia

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract This study investigates the characteristics of ionospheric electron density irregularities induced by very low frequency (VLF) wave transmissions from North West Cape (NWC), Australia, using Swarm‐A satellite data from January 2014 to September 2024.
Ho‐Sung Choi, Jaeheung Park, Hyosub Kil   +2 more
wiley   +1 more source

Observation of daytime medium-scale traveling ionospheric disturbances using GNSS systems

Учёные записки Казанского университета: Серия Физико-математические науки, 2018
The paper considers the problems of detecting midlatitude MSTIDs with a low intensity of disturbance ∆N/N using the method of transionospheric sounding with GNSS signals.
R.O. Sherstyukov, A.D. Akchurin
doaj  

Ionospheric Response to the 8 April 2024 Total Solar Eclipse: Plasma Depletion and Eclipse‐Driven MsTIDs

Space Weather, Volume 24, Issue 4, April 2026.
Abstract The total solar eclipse on 8 April 2024 provided a unique opportunity to investigate the three‐dimensional (3‐D) ionospheric response under enhanced solar activity over North America. In this study, we processed high‐density GNSS observations from ∼1,700 stations to derive vertical total electron content and applied a multi‐term sinusoidal ...
Wenbin Liang, Xiyan Sun, Yuanfa Ji, Xiaodong Ren   +3 more
wiley   +1 more source