scholarly journals Extreme ultraviolet solar irradiance during the rising phase of solar cycle 24 observed by PROBA2/LYRA

2012 ◽  
Vol 2 ◽  
pp. A14 ◽  
Author(s):  
Matthieu Kretzschmar ◽  
Ingolf E. Dammasch ◽  
Marie Dominique ◽  
Joe Zender ◽  
Gaël Cessateur ◽  
...  
Keyword(s):  
Solar Cycle ◽  
Solar Irradiance ◽  
Extreme Ultraviolet ◽  
Solar Cycle 24 ◽  
Cycle 24

scholarly journals Solar Irradiance from 165 to 400 nm in 2008 and UV Variations in Three Spectral Bands During Solar Cycle 24

Solar Physics ◽  
2016 ◽  
Vol 291 (12) ◽  
pp. 3527-3547 ◽  
Author(s):  
M. Meftah ◽  
D. Bolsée ◽  
L. Damé ◽  
A. Hauchecorne ◽  
N. Pereira ◽  
...  
Keyword(s):  
Solar Cycle ◽  
Solar Irradiance ◽  
Spectral Bands ◽  
Solar Cycle 24 ◽  
Cycle 24

Changes of solar extreme ultraviolet spectrum in solar cycle 24

2016 ◽  
Vol 121 (7) ◽  
pp. 6844-6854 ◽  
Author(s):  
Jianping Huang ◽  
Yongqiang Hao ◽  
Donghe Zhang ◽  
Zuo Xiao
Keyword(s):  
Solar Cycle ◽  
Extreme Ultraviolet ◽  
Ultraviolet Spectrum ◽  
Solar Cycle 24 ◽  
Cycle 24

Regression Analysis of Sunspot Numbers for the Solar Cycle 24 in Comparison to Previous Three Cycles

2014 ◽  
Vol 4 (2) ◽  
pp. 477-483
Author(s):  
Debojyoti Halder
Keyword(s):  
Regression Analysis ◽  
Solar Cycle ◽  
Sunspot Number ◽  
The Sun ◽  
Sunspot Numbers ◽  
Solar Cycle 24 ◽  
Current Cycle ◽  
Cycle 24

Sunspots are temporary phenomena on the photosphere of the Sun which appear visibly as dark spots compared to surrounding regions. Sunspot populations usually rise fast but fall more slowly when observed for any particular solar cycle. The sunspot numbers for the current cycle 24 and the previous three cycles have been plotted for duration of first four years for each of them. It appears that the value of peak sunspot number for solar cycle 24 is smaller than the three preceding cycles. When regression analysis is made it exhibits a trend of slow rising phase of the cycle 24 compared to previous three cycles. Our analysis further shows that cycle 24 is approaching to a longer-period but with smaller occurrences of sunspot number.

Empirical Relationship Between CME Parameters and Geo-effectiveness of Halo CMEs in the Rising Phase of Solar Cycle 24 (2011 – 2013)

Solar Physics ◽  
2015 ◽  
Vol 290 (5) ◽  
pp. 1417-1427 ◽  
Author(s):  
A. Shanmugaraju ◽  
M. Syed Ibrahim ◽  
Y.-J. Moon ◽  
A. Mujiber Rahman ◽  
S. Umapathy
Keyword(s):  
Solar Cycle ◽  
Empirical Relationship ◽  
Solar Cycle 24 ◽  
Halo Cmes ◽  
Cycle 24

scholarly journals Vertical Thermospheric Density Profiles From EUV Solar Occultations Made by PROBA2 LYRA for Solar Cycle 24

Space Weather ◽  
2017 ◽  
Vol 15 (12) ◽  
pp. 1649-1660 ◽  
Author(s):  
E. M. B. Thiemann ◽  
M. Dominique ◽  
M. D. Pilinski ◽  
F. G. Eparvier
Keyword(s):  
Solar Cycle ◽  
Density Profiles ◽  
Solar Cycle 24 ◽  
Cycle 24
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