Results 21 to 30 of about 5,388 (217)
This study presents observations of nighttime spread F/ionospheric irregularities and spread Es at low and middle latitudes in the South East Asia longitude of China sectors during the recovery phase of the 7–9 September 2017 geomagnetic storm.
Lehui Wei +7 more
semanticscholar +1 more source
The paper aims at an experimental study of the mechanisms of long-distance high-frequency (HF) propagation and spatial and temporal variations of the ionospheric parameters during the first hours of a severe geomagnetic storm of April 23, 2023 by ...
A. Zalizovski +11 more
doaj +1 more source
Thermospheric Parameters during Ionospheric G-Conditions
For the first time thermospheric parameters (neutral composition, exospheric temperature and vertical plasma drift related to thermospheric winds) have been inferred for ionospheric G-conditions observed with Millstone Hill ISR on 11–13 September 2005 ...
Loredana Perrone +2 more
doaj +1 more source
We used ground-based ionosonde observations at Ganzi (31.2° N, 100.4° E) to validate the COSMIC measurement in the middle latitude region of China during low solar activity.
Liangchen Hu +3 more
doaj +1 more source
A near-real-time computerized ionospheric tomography (CIT) technique was developed over the East Asian sector to specify the 3-D electron density field.
Nicholas Ssessanga +4 more
semanticscholar +1 more source
Ionospheric clutter is a major factor affecting the performance of high-frequency surface wave radar (HFSWR). Previous studies have been mainly focused on the development of ionospheric clutter suppression methods involving delicate signal processing ...
Xuguang Yang +3 more
doaj +1 more source
A Comparative Study on Radio Frequency Interference Suppression and foF2 Scaling for Ionograms
In this paper, we compare the performances of radio frequency interference (RFI) suppression between radio frequency interference mitigation (RFIM) and frequency-domain adaptive clutter suppression (FACS) algorithms that apply to ionograms for foF2 ...
Zhao-Yu Chen +6 more
doaj +1 more source
The Comparison of Electron Density between CSES In Situ and Ground-Based Observations in China
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
doaj +1 more source
Climatology of Spread F over Tucumán from Massive Statistical Analysis of Autoscaled Data
Automatic ionogram interpretation methods developed for real-time ionospheric monitoring can be applied in retrospective studies to analyze large quantities of data. The Autoscala software, implemented for such a purpose, includes a routine for automatic
Carlo Scotto, Dario Sabbagh
doaj +1 more source
The new AIS-INGV digital ionosonde
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
doaj +1 more source

