Results 21 to 30 of about 2,463,485 (172)
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020 The analytical description of the topside ionosphere included in the NeQuick model is studied in detail. First, the modeled scale height behavior is analyzed at infinity and for the lowest part of the topside region; in the latter case, the analysis is ...
Alessio Pignalberi +5 more
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Progress in investigating long-term trends in the mesosphere, thermosphere, and ionosphere [PDF]
Atmospheric Chemistry and Physics, 2023 This article reviews main progress in investigations of long-term trends in the mesosphere, thermosphere, and ionosphere over the period 2018–2022. Overall this progress may be considered significant. The research was most active in the area of trends in
J. Laštovička
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Phenomena in the ionosphere-magnetosphere system induced by injection of powerful HF radio waves into nightside auroral ionosphere [PDF]
, 2005 International audienceExperimental results from three ionospheric HF pumping experiments in overdense E or F regions are summarized. The experiments were conducted by the use of the EISCAT HF Heating facility located near Tromsø, Norway, allowing HF ...
N. F. Blagoveshchenskaya +13 more
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Manifestation of solar activity in the global topside ion composition − a study based on satellite data [PDF]
Annales Geophysicae, 2005 The solar cycle variation of the most important parameters characterizing the ion composition in the topside ionosphere is studied. For this purpose data from the ACTIVE mission (the IK-24 satellite) for the maximum of solar cycle 22 (aver F10.7~200),
V. Truhlík, L. Trísková, J. Šmilauer
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Space Weather, 2022 Modeling the Earth's ionosphere is a critical component of forecasting space weather, which in turn impacts radio wave propagation, navigation and communication.
S. Dutta, M. B. Cohen
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Upgrades to the topside sounders model assisted by Digisonde (TaD) and its validation at the topside ionosphere [PDF]
Journal of Space Weather and Space Climate, 2012 This paper presents a series of improvements made in the Topside Sounders Model assisted by Digisonde (TaD), verification results on these improvements, and its validation at the topside part of the profile. The TaD is based on the simple empirical functions for the O+/H+ transition height (hT), the topside electron density scale height (HT), and their
Fidanova Stefka +4 more
openaire +2 more sources
Topside Ionosphere and Plasmasphere Modelling Using GNSS Radio Occultation and POD Data [PDF]
Remote Sensing, 2021 A 3D-model approach has been developed to describe the electron density of the topside ionosphere and plasmasphere based on Global Navigation Satellite System (GNSS) measurements onboard low Earth orbit satellites. Electron density profiles derived from ionospheric Radio Occultation (RO) data are extrapolated to the upper ionosphere and plasmasphere ...
Fabricio S. Prol, M. Mainul Hoque
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Space Weather, 2021 The topside ionosphere accounts for a dominant part of the ionospheric total electron content, whereas accurate global modeling of topside ionospheric electron density (Ne) profile has not been fully achieved.
Qiaoling Li +10 more
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Remote Sensing, 2023 Given the potential of low-earth orbit (LEO) satellites in terms of navigation enhancement, accurately estimating the differential code bias (DCB) of GNSS satellites and LEO satellites is an important research topic. In this study, to obtain accurate DCB
Yifan Wang +4 more
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Remote Sensing, 2021 The global total electron content (TEC) map in 2013, retrieved from the International Global Navigation Satellite Systems (GNSS) Service (IGS), and the International Reference Ionosphere (IRI-2016) model are used to monitor the diurnal evolution of the ...
Xin Wan +7 more
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