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FoF2 long-term trend linked to Earth's magnetic field secular variation at a station under the northern crest of the equatorial ionization anomaly
(American Geophysical Union, 2016-01)
Long-term trend of the critical frequency of the F2 ionospheric region, foF2, at Phu Thuy station (21.03°N, 105.96°E), Vietnam, located under the northern crest of the equatorial ionization anomaly, EIA, is studied. Annual ...
Incidence of solar cycle 24 in nighttime foF2 long-term trends for two Japanese ionospheric stations
(Springer, 2020-06)
Ionospheric long-term trend studies are of great scientific interest since they contribute to the more general and controversial climatic change issue. In this paper we analyze the effect of the inclusion of solar cycle ...
Quasi-biennial oscillation in foF2 at the south crest of the equatorial anomaly
(Elsevier, 2009-12)
The aim of this paper is to report some periodicities observed in the ionospheric parameter foF2 measured at Tucuman (26.9°S; 65.4°W), station placed near the southern crest of the equatorial anomaly. For that, monthly ...
Some ionospheric storm effects at equatorial and low latitudes
(Elsevier, 2014-04)
In this paper, the response of the equatorial and low latitude ionosphere to three intense geomagnetic storms occurred in 2002 and 2003 is reported. For that, critical frequency of F2-layer foF2 and the peak height hmF2 ...
Some ionospheric storm effects at equatorial and low latitudes
(Elsevier, 2014-03-04)
In this paper, the response of the equatorial and low latitude ionosphere to three intense geomagnetic storms occurred in 2002 and 2003 is reported. For that, critical frequency of F2-layer foF2 and the peak height hmF2 ...
Ionospheric high frequency wave propagation using different IRI hmF2 and foF2 models
(Elsevier, 2019-12)
High frequency (HF) electromagnetic wave propagation is commonly used in long-distance communication and detection. The ionosphere is a highly variable medium affecting this propagation. However, mean climatological ...
Performance evaluation of GIM‐TEC assimilation of the IRI‐Plas model at two equatorial stations in the American sector
(American Geophysical Union, 2017-05-15)
Empirical models of the ionosphere, such as the International Reference Ionosphere (IRI) model, play a vital role in evaluating the environmental effect on the operation of space‐based communication and navigation technologies. ...
Ionospheric response to the 3 August 2010 geomagnetic storm at mid and mid-high latitudes
(Elsevier, 2013-01)
The global ionospheric response to the geomagnetic storm occurred of 3 August 2010 is studied in terms of the ionospheric parameter foF2. Data from three longitudinal sectors (Asia/Pacific, Europe/Africa and America) ...