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Space Weather, Volume 24, Issue 3, March 2026.Abstract Modeling the high‐latitude ionosphere‐thermosphere system is imperative to understanding the impacts of space weather on modern technology, such as communications and navigation systems. At low‐ and mid‐latitudes, physics‐based and empirical models are well‐developed and capture the variability of the ionosphere to a good degree of accuracy ...
Emma‐Claire Gurney +3 more
wiley +1 more source
Studies in ionogram analysis and interpretation
, 1975 The single-polynomial method for ionogram analysis is adapted to give a least-squares procedure in which the number of scaled virtual heights is greater than the number of terms in the real-height polynomial.
Lobb, R. J. (Richard J.)
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Journal of Astronomy and Space SciencesThe electron density profiles produced from the ionospheric sounding system are traditionally estimated by the inversion procedure based on the image analysis of the observed ionograms. Jang Bogo Vertical Incidence Pulsed Ionospheric Radar (VIPIR) with
Junho Back +6 more
doaj +1 more source
Data Services Upgrade: Perfecting the ISIS-I Topside Digital Ionogram Database
, 2015 The ionospheric topside sounders of the International Satellites for Ionospheric Studies (ISIS) program were designed as analog systems. More than 16,000 of the original telemetry tapes from three satellites were used to produce topside digital ionograms,
Huang, Xueqin +6 more
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"Hook" structure in MARSIS ionogram and its interpretation
, 2009 MARSIS/MEX is a low frequency radar used to sound the ionosphere of Mars. In general the echo trace associated with reflections in nadir indicates an ionosphere with a main maximum electron density at typically about 130 km altitude, and a monotonously ...
Wang, X.D. +5 more
core +1 more source
Selective layer-free blood serum ionogram based on ion-specific interactions with a nanotransistor
, 2018 Despite being ubiquitous in the fields of chemistry and biology, the ion-specific effects of electrolytes pose major challenges for researchers. A lack of understanding about ion-specific surface interactions has hampered the development and application ...
Sivakumarasamy, R. (author) +6 more
core +2 more sources
A penalized motion detection model for extracting ionospheric echoes from low signal-to-noise ratio Ionogram video images [PDF]
Measuring the altitude distribution of electron density in the upper atmosphere, known as the ionosphere, using HighFrequency radio wave reflections often causes the low signal-to-noise ratio of ionospheric echoes due to radio frequency interference.
Hiroshige, Yuu +10 more
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Ionogram inversion F1-layer treatment effect in raytracing
Annals of Geophysics, 2005 This paper shows the importance of the F1-layer shape in the electron density profiles obtained from ionograms with different inversion techniques when the profiles are used in ray tracing.
S. M. Radicella +2 more
doaj +1 more source
Variations in the ionosphere during an aurora substorm as observed by an ionosonde
Antarctic Record, 2008 In order to obtain a better understanding of the influence of precipitating electrons on the ionosphere, we tried to estimate their effect from ionosonde observation data (ionograms) during an aurora substorm.
Joji Watanabe +2 more
doaj +1 more source
Detection of 2D features in MARSIS ionogram pictures
, 2013 The work focuses on techniques for finding significant features in ionograms captured by the MARSIS instrument onboard the Mars Express spacecraft. Identification of these features helps in studying the ionosphere, magnetosphere and plasma surrounding ...
Pecka, Martin
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