Ionospheric variations over Indian low latitudes close to the equator and comparison with IRI-2012

P Pavan Chaitanya, AK Patra, N Balan… - Annales …, 2015 - angeo.copernicus.org
In this paper, we analyze daytime observations of the critical frequencies of the F2 (fo F2)
and F3 (fo F3) layers based on ionosonde observations made from Indian low latitudes …

The relationship between the quasi biennial oscillation and sunspot number

S Sagir, S Karatay, R Atici, A Yesil, O Ozcan - Advances in Space …, 2015 - Elsevier
In this study, the relationship between the monthly mean values of the Quasi Biennial
Oscillation (QBO) measured at 10 hPa and 70 hPa altitudes and Sunspot Number (SSN) for …

The relationship of stratospheric QBO with the difference of measured and calculated NmF2

K Kurt, A Yeşil, S Sağir, R Atici - Acta Geophysica, 2016 - Springer
The relationship between stratospheric QBO and the difference (ΔNmF2) between NmF2
calculated with IRI-2012 and measured from ionosondes at the Singapore and Ascension …

NmF2 and hmF2 measurements at 95 E and 127 E around the EIA northern crest during 2010–2014

BR Kalita, PK Bhuyan, A Yoshikawa - earth, planets and space, 2015 - Springer
The characteristics of the F2 layer parameters NmF2 and hmF2 over Dibrugarh (27.5° N, 95°
E, 17° N geomagnetic, 43° dip) measured by a Canadian Advanced Digital Ionosonde …

The relation between the refractive index of the equatorial ionospheric F2 region and long-term solar indices

S Sağır, A Yeşil - Wireless Personal Communications, 2018 - Springer
Ionospheric refractive index is especially important in the reflection and propagation of HF (3–
30 MHz) waves from the ionosphere. For this reason, in this study, the relation between the …

Variations of total electron content over high latitude region during the ascending phase of 24th solar cycle

AK Singh, RM Das, S Saini - Advances in Space Research, 2019 - Elsevier
The solar cycle variation and seasonal changes significantly affects the ionization process of
earth's ionosphere and required to be monitored in real time basis for regional level …

Comparison of the QBO and F10. 7 Solar Flux Effects on Total Mass Density

S Sağır, R Atıcı - Geomagnetism and Aeronomy, 2018 - Springer
The comparison of the Quasi Biennial Oscillation (QBO) and F10. 7 solar flux effects on Total
Mass Density (TMD) obtained from NRLMSIS-00 model for 90 km altitude of ionosphere …

The possible effect of stratospheric quasi-biennial oscillation on the critical frequency of the ionospheric F2-layer

S Sağir, R Atici, O Özcan - Pramana, 2018 - Springer
In this study, the coupling between the stratospheric quasi-biennial oscillation (QBO) and the
critical frequency of the ionospheric F2-layer (foF2) was analysed statistically. The multiple …

FoF2 variability at a southern low-latitude station and the performance of IRI-2016 model during ascending phase of solar cycle-24

SS Rao, M Chakraborty, R Pandey, AK Singh - Advances in Space …, 2019 - Elsevier
In this research, we have analyzed the data of the critical frequency of the F 2 region (foF 2)
ionosphere over the southern low-latitude station COCO (Keeling) Island (Geog. Lat. 12.20° …

[HTML][HTML] The assessment in terms of QBO of NeQuick 2 model

S Sağır, R Atıcı, Y Akalın, A Yeşil - The Egyptian Journal of Remote Sensing …, 2019 - Elsevier
The NeQuick 2 model which is a model calculated to ionospheric parameter was evaluated
in terms of the stratospheric QBO. The relationship with QBO of the difference (ΔNmF1) was …