solar cycle variation
Solar cycle variation of the statistical distribution of the solar wind ε parameter and its constituent variables
... Wind solar wind observations to investigate the solar cycle variation of the solar wind driving of the ...used solar wind coupling parameters, Poynting flux, B 2 , the 𝜖 ...
9
The spatial density gradient of galactic cosmic rays and its solar cycle variation observed with the Global Muon Detector Network
... the solar wind ...yearly variation of ξ / cos ψ , ...the solar cycle variation of the anisotropy, therefore, it is necessary to correct the observed anisotropy for cos ψ and the ...
8
The solar cycle variation of topological structures in the global solar corona
... These corrected magnetograms form the lower boundary for the PFSS calculation code (van Ballegooijen et al. 1998). This code solves Laplace’s equation in 3D using spherical harmon- ics. The PFSS extrapolation is made ...
14
Solar cycle variation and its impact on critical frequency of F layer
... the solar activity which best suited for long term variability of the ...and solar radio flux have been used in earlier studies, but later it was found that these are not the best proxies for studying the ...
10
Longitudinal, seasonal and solar cycle variation in lunar tide influence on the equatorial electrojet
... Yizengaw et al., 2014). The strength of the EEJ has been determined at different longitudes using magnetometers lo- cated in the American, African, and Asian sectors. The mag- netometer stations used for this study ...
9
Solar cycle variation of magnetic flux ropes in a quasi static coronal evolution model
... Acknowledgements We thank A.A. van Ballegooijen, D.H. Mackay, A.N. Wilmot-Smith, D.I. Pontin and an anonymous referee for useful suggestions, and D.H. Mackay also for the use of parallel computing facilities obtained ...
18
Observed Solar Cycle Variation of the Stratospheric QBO Generated in the Mesosphere and Amplified by Upward Propagating Waves
... Analysis of zonal wind data supplied by the National Centers for Environ- mental Prediction (NCEP) provides observational evidence for the EAO [23] [24] [25]. And the EAO is observed varying with the F10.7 cm ...
21
Diurnal, seasonal and solar cycle variation in total electron content and comparison with IRI 2016 model at Birnin Kebbi
... al.: Variation in total electron content and comparison with IRI-2016 Figure ...Seasonal variation in TEC is dependent on thermospheric neutral com- positions, since during the day the Equator is hotter ...
15
Diurnal, seasonal, latitudinal and solar cycle variation of electron temperature in the topside F-region of the Indian zone ionosphere
... declining solar radiations becomes strong producing a pronounced decrease in the thermal elec- tron cooling rate and the resulting increase in the evening T e ...
12
Solar cycle modulation of Titan's ionosphere
... new solar maximum period of the Sun. However, the current maximum of solar cycle 24 is a very weak one and the values of the solar spec- tral irradiance are quite comparable to the values ...
11
Solar cycle influence on the interaction of the solar wind with Local Interstellar Cloud
... the solar wind – interstellar medium interaction ...the solar wind and interstellar charged ...11-year solar cycle variations of the solar wind dynamic ...heliopause variation is ...
19
How is open solar magnetic flux lost over the solar cycle?
... At solar minimum, the foot points of open solar field lines largely map to the polar regions and are strongly associated with the dark regions in soft X‐ray and EUV images known as coronal ...a solar ...
13
Long-term Variation of Solar Flare Indices in Relation to Sunspot Numbers from Solar Cycle 20 to 24
... cm solar flux, it would be sufficient to use either of the two solar indices and the use of both will not serve any extra purpose, Nevertheless, Still many investigators prefer to use both of these ...
9
Solar origins of solar wind properties during the cycle 23 solar minimum and rising phase of cycle 24
... of solar wind sources based on combinations of modern observations and ...early solar wind the- ory, although it retains certain ...modern solar wind still has its main source in open coronal ...
8
Dynamical response to the solar cycle
... where solar ultraviolet heating is greatest. The most important variation in solar forcing longer than the diurnal cycle is the annual ...wind variation associated with the annual ...
12
The Future of Solar Cycle Forecasts
... that Solar Cycle 25 will be at least as active as to Solar Cycle 24, and could be more ...of Solar Cycle 25 span from an average amplitude to small or ...of Solar ...
19
Influence of Solar Cycle Variations on Solar Spectral Radiation
... with solar variability are largely caused by variations in total solar irradiance and solar spectral irradiance with solar ...of solar radiation is crucial in determining atom- spheric ...
8
Solar cycle dependence of scaling in solar wind fluctuations
... the solar wind, this points to the possibility that the observed anisotropic scaling may not be solely the result of in situ turbulence, but may instead be the result of a superposition of signatures that are ...
12
Sources of solar wind over the solar activity cycle
... Fast solar wind has been recognized, about 40 years ago, to originate in polar coronal holes (CHs), that, since then, have been identified with sources of recurrent high speed wind ...the solar wind is ...
6
Solar Activity during the Rising Phase of Solar Cycle 24
... ABSTRACT Solar activity refers to any natural phenomenon occurring on the sun such as sunspots, solar flare and coronal mass ejection ...various solar features during January 2009 to December ...
5