Results 91 to 100 of about 1,552 (215)
<p>This dataset contains airglow image data (airglow_image.mat) and ionogram data (ionogram_data.mat) obtained from Zhuhai Station (113.58°E, 22.35°N) on April 3, 2022. The airglow images ranged from 12:30-20:04 UT.
Zhong, Jiahao, Song, Xingyan
core +1 more source
, 2011 The topside-sounders on the four satellites of the International Satellites for Ionospheric Studies (ISIS) program were designed as analog systems. The resulting ionograms were displayed on 35-mm film for analysis by visual inspection.
Benson, R. F. +4 more
core
Ipomoea fistulosa (aguapeí, mandiyurá) intoxication on goats. Effects on hemogram and ionogram
, 2005 Ipomoea fistulosa es unaplanta de amplia distribución en el noreste argentino, que causa intoxicaciones en caprinosde cría extensiva. Para evaluar sus efectos sobre algunos parámetros clínicos, el hemogramay el ionograma, se provocó la intoxicación ...
Acosta, Ofelia Cristina +6 more
core +1 more source
Deep Neural Network-Based Inversion Method for Electron Density Profiles in Ionograms
AtmosphereAccurate inversion of ionograms of the ionosonde is of great significance for studying ionospheric structure and radio wave propagation. Traditional inversion methods usually describe the electron density profile based on preset polynomial functions, but
Longlong Niu +5 more
doaj +1 more source
Influence of Non-vertical Echoes to Ionogram Scaling
, 2011 Digisonde DPS 4 replaced the older ionosonde IPS 42 KEL Aerospace in the Observatory Pruhonice in January 2004. Additional information about the wave polarization enables us to determine and to distinguish exactly between ordinary and extraordinary wave ...
Kouba, Daniel
core
Modeling ionograms and critical plasma frequencies with neural networks
Frontiers in Astronomy and Space SciencesIonosondes offer broad spatial coverage of the lower ionosphere, supported by a global network of affordable instruments. This motivates the exploration of new methods that exploit this geographical coverage to capture spatially dependent characteristics
Enrique L. Rojas +2 more
doaj +1 more source
Remote SensingIonospheric oblique backscatter sounding is an effective means of monitoring the ionosphere which can be used as a frequency selection system to serve HF communication and ensure its quality and stability. But how to obtain effective information from the
Chuqi Cai +3 more
doaj +1 more source
On new detailed ionogram signatures of Equatorial Plasma Bubbles from non-equatorial station during low solar activity [PDF]
, 2015 A first - time direct comparison between climatology of spread F (SF) observed at Phu Thuy and DMSP, C/NOFS satellite measurements during years of low solar activity conditions 2007 - 2010, together with ionosonde observations under the same solar ...
Trang, Nguyen Thu +2 more
core
Effect of quality and flow trimming on dataset metrics, aggregated by kit used.
, 2013 AT = Analysis trim, QT = Quality trim, HRI = High-residual ionogram trim (1-mers and 2-mers), HRI3 = High-residual ionogram trim (1-mer, 2-mer, 3-mers).
Philip Hugenholtz (13833) +4 more
core +1 more source
Enhancing the ISIS-I Topside Digital Ionogram Database
, 2018 Selected original analog telemetry tapes from three of the topside-sounder satellites of theInternational Satellites for Ionospheric Studies (ISIS) program, namely Alouette 2, ISIS I, and ISIS II, wereused in an earlier project to produce more than ...
Benson, Robert F. +4 more
core