Quiet and Disturbed Time Characteristics of Blanketing Es (Esb) During Solar Cycle 23
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DOI: 10.1002/2017ja023911
Abstract: A sporadic E layer with dense ionization blocks the upper ionospheric layers in ionosonde observations and it is called, blanketing sporadic E (Esb). Although earlier studies have demonstrated that Esb occurrence is dependent on solar… read more here.
Keywords: esb occurrence; solar activity; time; solar cycle ... See more keywords
Linear Forecasting of the F10.7 Proxy for Solar Activity
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DOI: 10.1002/2017sw001637
Abstract: The ability to accurately forecast variations in the solar extreme ultraviolet irradiance is important to many aspects of operational space weather. For example, variations in the Sun's radiative output at these wavelengths drive changes in… read more here.
Keywords: proxy solar; solar activity; linear forecasting; forecasting f10 ... See more keywords
Investigation of the relationship between the air pollution and solar activity
Sign Up to like & getrecommendations! Published in 2017 at "Astrophysics and Space Science"
DOI: 10.1007/s10509-017-3121-0
Abstract: How did the Sun affect the air pollution on the Earth? There are few papers about this question. This work investigates the relationship between the air pollution and solar activity by using the geophysical and… read more here.
Keywords: air; relationship; solar activity; air pollution ... See more keywords
Effects of solar activity on ionospheric current system in the Southeast Asia region
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DOI: 10.1007/s12648-020-01734-2
Abstract: The equatorial ionospheric current system is composed of equatorial electrojet (EEJ) and solar quiet (Sq) that flow in the eastward direction. That being mentioned, this study looked into the changes in ionospheric currents stemming from… read more here.
Keywords: ionospheric current; solar activity; asia region; southeast asia ... See more keywords
Ionospheric variability during quiet and disturb geomagnetic conditions for low and high solar activity year
Sign Up to like & getrecommendations! Published in 2021 at "Indian Journal of Physics"
DOI: 10.1007/s12648-021-02124-y
Abstract: Present Paper describes analysis of GPS-data recorded at low latitude station Hyderabad (Geographic latitude 17 $$^\circ $$ , 25′ N, longitude 78 $$^\circ $$ , 33′ E), India to study the effect of magnetic activity… read more here.
Keywords: activity; high solar; year; solar activity ... See more keywords
Launch malfunctions and space weather factors
Sign Up to like & getrecommendations! Published in 2017 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2017.10.039
Abstract: Abstract The space rocket launch malfunctions frequency has been analyzed depending on the level and the phase of solar activity cycle and the season of year. Comparative analysis of the temporal variations of the relative… read more here.
Keywords: solar activity; space; failed launches; malfunctions space ... See more keywords
Singular spectrum analysis of GPS derived ionospheric TEC variations over Nepal during the low solar activity period
Sign Up to like & getrecommendations! Published in 2020 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2020.01.014
Abstract: Abstract Accurate modeling of ionospheric total electron content (TEC) is an important aspect for mitigating the threats of trans-ionospheric delay error in satellite communication, earth observation, space-based navigation, timing applications as well as space weather… read more here.
Keywords: solar activity; analysis; gps derived; low solar ... See more keywords
Regional application of ANFIS in ionosphere time series prediction at severe solar activity period
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DOI: 10.1016/j.actaastro.2020.11.027
Abstract: Abstract The ionosphere and its activities play an important role in radio communications, space science and positioning. In this paper, we present efficiency of the adaptive neuro-fuzzy inference system (ANFIS) in ionosphere time series prediction… read more here.
Keywords: prediction; solar activity; time series; ionosphere time ... See more keywords
Variability of ionospheric parameters during solar minimum and maximum activity and assessment of IRI model
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DOI: 10.1016/j.asr.2016.11.027
Abstract: Abstract The ionospheric parameters (electron and ion plasma temperatures (Te and Ti) and total ion density, Ni) as obtained by the Indian SROSS-C2 satellite (altitude ∼500 km) have been investigated during low (year 1995, F 10.7… read more here.
Keywords: solar activity; variability ionospheric; ionospheric parameters; model ... See more keywords
Rhythmites of fossilized sedimentory laminae from the late Precambrian (∼680 Myears Ago) and current cycles of solar activity
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DOI: 10.1016/j.asr.2020.08.011
Abstract: Abstract Palaeoclimatic data (thickness variations in the Elatina Formation periglacial varves in the Flinderes Range, South Australia) with a spatial resolution of about one year and a time period of about 1334 years dated to the… read more here.
Keywords: myears ago; solar activity; late precambrian; 680 myears ... See more keywords
A solar activity correction term for the IRI topside electron density model
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DOI: 10.1016/j.asr.2020.11.012
Abstract: Abstract In situ measurements by the Low Earth Orbital (LEO) satellites, such as CHAMP, GRACE, and C/NOFS satellites have shown that the International Reference Ionosphere (IRI) model has shortcomings in describing the solar activity variation… read more here.
Keywords: model; electron density; solar activity; iri ... See more keywords