Results 1 to 10 of about 5,479 (219)
Performance evaluation of IRI-Plas 2017 model with ionosonde data measurements of ionospheric parameters [PDF]
Heliyon, 2023 This study presents an evaluation of the performance of the International Reference Ionosphere Model augmented with the Plasmasphere (IRI Plas 2017) from the Addis Ababa Ionosonde Station, Ethiopia, for measuring ionospheric parameters at geographic (9 ...
Lake Endeshaw, Alene Seyoum
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New Chung-Li Ionosonde in Taiwan: System Description and Preliminary Results
Remote Sensing, 2022 In spite of being interrupted several times in its long history of operation since 1950, the routine observation of the ionosphere with various ionosondes installed at the Chung-Li ionosphere station in Taiwan has been achieved successively for more than
Ruey-Ming Kuong, Yen-Hsyang Chu
exaly +3 more sources
Implementation of an Electronic Ionosonde to Monitor the Earth’s Ionosphere via a Projected Column through USRP [PDF]
Sensors, 2017 This document illustrates the processes carried out for the construction of an ionospheric sensor or ionosonde, from a universal software radio peripheral (USRP), and its programming using GNU-Radio and MATLAB. The development involved the in-depth study
Jhon Jairo Barona Mendoza +2 more
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Calibrating an Ionosonde for Ionospheric Attenuation Measurements. [PDF]
Sensors (Basel), 2018 Vertical ionospheric soundings have been performed at almost all ionospheric observatories with little attention to measuring the attenuation of the signal between transmission and reception. When the absorption has been determined, this has been achieved by comparing the received power after the first and second reflections, but this method has some ...
Gilli L, Sciacca U, Zuccheretti E.
europepmc +5 more sources
Frontiers in Astronomy and Space Sciences, 2023 The investigation of sporadic E or Es layers typically relies on ground-based or satellite data. This study compares the Es layers recorded in ionograms with those detected using GNSS L1 signal-to-noise ratio data from FORMOSAT-3/COSMIC radio occultation
S. Sobhkhiz-Miandehi +6 more
exaly +3 more sources
The new AIS-INGV digital ionosonde
Annals of Geophysics, 2003 A new digital ionosonde called AIS-INGV (Advanced Ionospheric Sounder) was designed both for research and for routine service of HF radio wave propagation forecast.
J. A. Baskaradas +4 more
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Remote Sensing, 2018 The height of F2 peak (hmF2) is an essential ionospheric parameter and its variations can reflect both the earth magnetic and solar activities. Therefore, reliable prediction of hmF2 is important for the study of space, such as solar wind and extreme ...
Andong Hu, Kefei Zhang
exaly +3 more sources
Unusual Enhancements of NmF2 in Anyang Ionosonde Data [PDF]
Journal of Astronomy and Space Sciences, 2013 Sudden enhancements of daytime NmF2 appeared in Anyang ionosonde data during summer seasons in 2006-2007. In order to investigate the causes of this unusual enhancement, we compared Anyang NmF2’s with the total electron contents (GPS TECs) observed at ...
Jongyeon Yun +4 more
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The Comparison of Electron Density between CSES In Situ and Ground-Based Observations in China
Remote Sensing, 2022 As the observation accuracy of parameters in the ionosphere cannot be directly checked, the comparison with other observations is the main way to evaluate the data quality of satellite measurements.
Jing Liu +3 more
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A Regional Model of Topside Ionospheric Effective Scale Heights Derived From Ionosonde and GNSS TEC
Space Weather, 2023 Ionospheric scale height is critical for the structure of electron density profile in the ionosphere. However, mostly, the effective scale heights (fitted with mathematical functions) instead of topside ionospheric scale heights were used to reconstruct ...
Chunhua Jiang +6 more
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