Results 11 to 20 of about 128 (95)

Assessment of models for the prediction of the Travelling Ionospheric Disturbance activity index in mid-latitude Europe [PDF]

Journal of Space Weather and Space Climate
Given the impact the ionosphere electron density has on radio wave propagation, understanding, characterizing and predicting its behaviour and associated perturbations is of high importance.
Ferreira Arthur Amaral, Borries Claudia, Borges Renato Alves   +2 more
doaj   +3 more sources

Global propagation features of large-scale traveling ionospheric disturbances during the magnetic storm of 7~10 November 2004 [PDF]

Annales Geophysicae, 2012
Larger-scale traveling ionospheric disturbances (LSTIDs) were studied using the total electron content (TEC) data observed from global GPS network in the regions of North America, Europe, and East Asia during the magnetic storm of 7~10 November 2004 ...
Q. Song, Q. Song, F. Ding, W. Wan, B. Ning, L. Liu   +5 more
doaj   +2 more sources

Climatology of large-scale Traveling Ionospheric Disturbances above Europe during the 2014–2023 period

Journal of Space Weather and Space Climate
This study analyzes the climatology of Large Scale Traveling Ionospheric Disturbances (LSTIDs) over Europe from 2014 to 2023 using the HF-Interferometry method (HF-INT), which provides LSTIDs’ activity detected in near-real-time by a network of European ...
Segarra Antoni, Altadill David, de Paula Víctor, Navas-Portella Víctor   +3 more
doaj   +2 more sources

Identification of potential precursors for the occurrence of Large-Scale Traveling Ionospheric Disturbances in a case study during September 2017 [PDF]

Journal of Space Weather and Space Climate, 2020
Traveling Ionospheric Disturbances (TIDs) reflect changes in the ionospheric electron density which are caused by atmospheric gravity waves. These changes in the electron density impact the functionality of different applications such as precise ...
Ferreira Arthur Amaral, Borries Claudia, Xiong Chao, Borges Renato Alves, Mielich Jens, Kouba Daniel   +5 more
doaj   +2 more sources

Simultaneous observations of large-scale traveling ionospheric disturbances on the nightside and dayside middle latitude [PDF]

Annales Geophysicae, 2012
In this paper, we present further observational evidence for the transpolar propagation of large-scale traveling ionospheric disturbances (LSTIDs) from their nightside source region to the dayside reported by Cai et al. (2011).
H. T. Cai, H. T. Cai, F. Yin, F. Yin, S. Y. Ma, S. Y. Ma, J. S. Xu, J. S. Xu, Y. W. Liu, Y. W. Liu   +9 more
doaj   +2 more sources

Neural network-based short-term forecast of Large Scale Travelling Ionospheric Disturbance occurrence above middle and southern Europe

Journal of Space Weather and Space Climate
Large-Scale Traveling Ionospheric Disturbances (LSTIDs) are wave-like perturbations of the ambient ionospheric electron density that can have adverse effects on radio wave propagation within or across the ionosphere.
Themelis Konstantinos, Belehaki Anna, Koutroumbas Konstantinos, Segarra Antoni, de Paula Victor, Navas-Portella Victor, Altadill David   +6 more
doaj   +2 more sources

Automatic Detection of Large‐Scale Traveling Ionospheric Disturbances Using GNSS Data and Image Processing Techniques

Space Weather
Large‐scale traveling ionospheric disturbances (LSTIDs) are wave‐like structures propagating through the ionosphere from auroral to lower latitudes, affecting radar‐based technologies and satellite navigation.
Marco Guerra, Claudio Cesaroni, Nicola Fiorentino, Federico Tosone, Vincenzo Ventriglia, Emanuele Pica, Elvira Astafyeva, Boris Maletckii, Luca Spogli   +8 more
doaj   +2 more sources

Transition region of TEC enhancement phenomena during geomagnetically disturbed periods at mid-latitudes [PDF]

Annales Geophysicae, 2005
Large-scale TEC perturbations/enhancements observed during the day sectors of major storm periods, 12-13 February 2000, 23 September 1999, 29 October 2003, and 21 November 2003, were studied using a high resolution GPS network over
K. Unnikrishnan, K. Unnikrishnan, A. Saito, Y. Otsuka, M. Yamamoto, S. Fukao   +5 more
doaj   +2 more sources

Investigation of the Ionospheric Response on Mother’s Day 2024 Geomagnetic Superstorm over the European Sector

Atmosphere
The present study examines the negative ionospheric response over Europe during two geomagnetic storms on 10–13 May 2024, known as the Mother’s Day geomagnetic superstorm.
Krishnendu Sekhar Paul, Haris Haralambous, Mefe Moses, Christina Oikonomou, Stelios M. Potirakis, Nicolas Bergeot, Jean-Marie Chevalier   +6 more
doaj   +2 more sources

An explainable Machine Learning model for Large-Scale Travelling Ionospheric Disturbances forecasting

Journal of Space Weather and Space Climate
Large-Scale Travelling Ionospheric Disturbances (LSTIDs) are wave-like ionospheric fluctuations, generally triggered by geomagnetic storms, which play a critical role in space weather dynamics.
Ventriglia Vincenzo, Guerra Marco, Cesaroni Claudio, Spogli Luca, Altadill David, Segarra Antoni, Galkin Ivan, Barta Veronika, Verhulst Tobias G.W., de Paula Víctor, Navas-Portella Víctor, Berényi Kitti A., Belehaki Anna   +12 more
doaj   +2 more sources