Results 31 to 40 of about 334 (115)

Investigation of Acoustic Waves in the Ionosphere Generated by a Deep Convection System Using Distributed Networks of GPS Receivers and Numerical Modeling

open access: yesGeophysical Research Letters, 2018
Acoustic waves generated in the lower atmosphere may become an important source of variability in the upper atmosphere. Although excited with small amplitudes compared to gravity waves, they are minimally subjected to viscous dissipation and may reach ...
Irfan Azeem   +2 more
doaj   +1 more source

Three‐Dimensional Reconstruction of Ionospheric Disturbances Using Tikhonov Regularization After 2022 Tonga Volcanic Eruption

open access: yesEarth and Space Science
Following significant natural hazards, traveling ionospheric disturbances (TIDs) are generated that affect the ionosphere. Understanding the three‐dimensional structure of these TIDs is crucial for understanding their propagation mechanisms.
Danial Abdollahi   +3 more
doaj   +1 more source

Some aspects of large-scale travelling ionospheric disturbances which originate at conjugate locations in auroral zones, cross the equator and sometimes encircle the earth [PDF]

open access: yesAnnales Geophysicae, 2011
The occurrence of large-scale travelling ionospheric disturbances (LS-TIDs) has been examined. Initially some literature on their generation is considered.
G. G. Bowman, I. K. Mortimer
doaj   +1 more source

Observations of ionospheric disturbances associated with the 2020 Beirut explosion by Defense Meteorological Satellite Program and ground-based ionosondes [PDF]

open access: yesAnnales Geophysicae
A major explosion that released a significant amount of energy into the atmosphere occurred in Beirut on 4 August 2020. The energy released may have reached the upper atmosphere and generated some traveling ionospheric disturbances (TIDs), which can ...
R. Pradipta, P.-C. Lai
doaj   +1 more source

The Persistent Ionospheric Responses Over Japan After the Impact of the 2011 Tohoku Earthquake

open access: yesSpace Weather, 2020
In this study, we report the persistent impacts of the 2011 Tohoku earthquake/tsunami on the ionosphere using the ground‐based Global Navigation Satellite System and FORMOSAT‐3/COSMIC total electron content.
Min‐Yang Chou   +3 more
doaj   +1 more source

Ionospheric Disturbances in GNSS TEC Data: SpaceX Falcon 9 Deorbit Maneuvers Over CONUS in April–May 2024

open access: yesGeophysical Research Letters
Traveling ionospheric disturbances (TIDs) driven by a large number of internal and external sources are detectable with dense networks of ground‐based Global Navigation Satellite System (GNSS) receivers' measurements of total electron content (TEC).
P. A. Inchin   +6 more
doaj   +1 more source

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

open access: yesJournal of Geophysical Research: Machine Learning and Computation
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 ...
Zhou Chen   +6 more
doaj   +1 more source

N-dimensional Lomb Scargle Periodogram analysis of traveling ionospheric disturbances using ionosonde data

open access: yesFrontiers in Astronomy and Space Sciences
There is a multitude of wave-like phenomena in Earth’s ionosphere and thermosphere such as acoustic waves, gravity waves, planetary waves, tides, and Traveling Ionospheric Disturbances (TIDs) which are the ionospheric manifestation of atmospheric waves ...
Joe Hughes   +8 more
doaj   +1 more source

Measurement of the Characteristics of TIDs Using Small and Regional Networks of GPS Receivers during the Campaign of 17–30 July of 2008

open access: yesInternational Journal of Geophysics, 2012
This scientific report presents the results of a dedicated experiment that was conducted within the framework of the Low-latitude ionospheric Sensor Network (LISN) observatory to measure the characteristics of medium-scale (hundreds of km) Traveling ...
Cesar E. Valladares, Matthew A. Hei
doaj   +1 more source

Franz von Liszt og vor tids kriminalpolitik

open access: yesNordisk Tidsskrift for Kriminalvidenskab, 1951
See abstract in article.
Stephan Hurwitz
doaj   +1 more source

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