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Estimation Model of Global Ionospheric Irregularities: An Artificial Intelligence Approach
Space Weather, 2022The ionospheric sporadic E layer, the ionospheric irregularities of enhanced electron density, appears in the Earth's ionosphere at altitudes between 90 and 120 km, which supports the real‐world radio communication needs of many sectors reliant on ...
Penghao Tian +5 more
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Geophysical Research Letters, 2021
This study presents an image‐based convolutional long short‐term memory (convLSTM) machine learning algorithm to predict storm‐time ionospheric irregularities.
Lei Liu, Y. J. Morton, Y. Liu
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This study presents an image‐based convolutional long short‐term memory (convLSTM) machine learning algorithm to predict storm‐time ionospheric irregularities.
Lei Liu, Y. J. Morton, Y. Liu
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Large-Scale Ionospheric Irregularities Detected by Ionosonde and GNSS Receiver Network
IEEE Geoscience and Remote Sensing Letters, 2021Large-scale ionospheric irregularities, which occurred on September 8, 2017, were detected by the ionosonde and the Global Navigation Satellite System (GNSS) receiver network in this letter. The Wuhan ionospheric sounding system (WISS), deployed at Puer (
Chunhua Jiang +7 more
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IEEE Transactions on Geoscience and Remote Sensing, 2021
In this study, we characterized the variations in ionospheric irregularities and medium-scale traveling ionospheric disturbances (MSTIDs) simultaneously at mid-latitudes over central China based on high-fidelity observations of the total electron content
F. Huang +6 more
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In this study, we characterized the variations in ionospheric irregularities and medium-scale traveling ionospheric disturbances (MSTIDs) simultaneously at mid-latitudes over central China based on high-fidelity observations of the total electron content
F. Huang +6 more
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Ionospheric irregularities and scintillation
Advances in Space Research, 2003Abstract One of the important research objectives of the Space Weather Program is to understand the structure and formation of ionospheric plasma-density irregularities that cause scintillation of radio waves on transionospheric links. In this paper we briefly review some aspects of scintillation and irregularities: the relationship between ...
A.W. Wernik, J.A. Secan, E.J. Fremouw
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Ionospheric irregularity physics modelling
20th Aerospace Sciences Meeting, 1982Theoretical and numerical simulation techniques have been employed to study ionospheric F region plasma cloud striation phenomena, equatorial spread F phenomena, and high latitude diffuse auroral F region irregularity phenomena. Each of these phenomena can cause scintillation effects. The results and ideas from these studies are state-of-the-art, agree
S. OSSAKOW, M. KESKINEN, S. ZALESAK
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Irregularities in the ionosphere
Journal of Geophysical Research, 1953Electron clouds, both in the E and F regions of the ionosphere, have been detected at vertical incidence by means of a high-precision ionosphere sounding equipment. The clouds give rise to scattered echoes, which are delineated on an expanded sweep as individual pips, resolved out from the normal echoes.
R. Roy, J. K. D. Verma
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Dispersive motions of ionospheric irregularities
Journal of Atmospheric and Terrestrial Physics, 1970Abstract Cross correlation functions for satellite scintillations at spaced receivers, show a systematic skewness, indicative of dispersive motions of ionospheric irregularities. Other features of the correlation functions, such as secondary pumps frequently present at large time lags and a very obvious change in the shape of the curve over a long ...
Micheal D. Papagiannis +1 more
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Impacts of Ionospheric Irregularities on L-Band Geosynchronous Synthetic Aperture Radar
IEEE Transactions on Geoscience and Remote Sensing, 2020An L-band geosynchronous synthetic aperture radar (GEO SAR) system has to be confronted by an intractable issue of the decorrelations imposed by ionospheric irregularities.
Yifei Ji +5 more
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Reviews of Geophysics, 1975
Ionospheric irregularities are small‐scale structures in the ionospheric plasma density generally oriented so that the plasma density variations occur rapidly across the geomagnetic field but slowly (or not at all) along the geomagnetic field. On the practical side, they play an important role in satellite communication systems [Utlaut, 1974].The scale
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Ionospheric irregularities are small‐scale structures in the ionospheric plasma density generally oriented so that the plasma density variations occur rapidly across the geomagnetic field but slowly (or not at all) along the geomagnetic field. On the practical side, they play an important role in satellite communication systems [Utlaut, 1974].The scale
openaire +1 more source