scholarly journals Energetic particle and other space weather events of solar cycle 24

2012 ◽  
Author(s):  
Nat Gopalswamy
Keyword(s):  
Solar Cycle ◽  
Space Weather ◽  
Energetic Particle ◽  
Weather Events ◽  
Solar Cycle 24 ◽  
Cycle 24

scholarly journals Geoeffective space weather events signatures in cosmic rays during the ascending phase of the solar cycle 24

2021 ◽  
Author(s):  
Agnieszka Gil ◽  
Monika Berendt-Marchel ◽  
Renata Modzelewska ◽  
Szczepan Moskwa ◽  
Agnieszka Siluszyk ◽  
...  
Keyword(s):  
Solar Cycle ◽  
Cosmic Rays ◽  
Space Weather ◽  
Weather Events ◽  
Solar Cycle 24 ◽  
Cycle 24

scholarly journals Indicators of Space Weather Events in Cosmic Rays Flux During the Solar Cycle 24

2019 ◽  
Author(s):  
Agnieszka Gil ◽  
Renata Modzelewska ◽  
Szczepan Moskwa ◽  
Agnieszka Siluszyk ◽  
Marek Siluszyk ◽  
...  
Keyword(s):  
Solar Cycle ◽  
Cosmic Rays ◽  
Space Weather ◽  
Weather Events ◽  
Solar Cycle 24 ◽  
Cycle 24

Solar flares, CMEs and solar energetic particle events during solar cycle 24

2018 ◽  
Vol 61 (2) ◽  
pp. 777-785 ◽  
Author(s):  
Bimal Pande ◽  
Seema Pande ◽  
Ramesh Chandra ◽  
Mahesh Chandra Mathpal
Keyword(s):  
Solar Cycle ◽  
Solar Flares ◽  
Energetic Particle ◽  
Solar Energetic Particle ◽  
Solar Energetic Particle Events ◽  
Solar Cycle 24 ◽  
Cycle 24

3He rich periods measured by the Suprathermal Ion Telescope (SIT) on STEREO-A during solar cycle 24

2021 ◽  
Author(s):  
Marlon Köberle ◽  
Radoslav Bucik ◽  
Nina Dresing ◽  
Bernd Heber ◽  
Andreas Klassen ◽  
...  
Keyword(s):  
Solar Cycle ◽  
Heavy Ions ◽  
Energetic Particle ◽  
Solar Energetic Particle ◽  
Detection Algorithm ◽  
Solar Cycle 24 ◽  
Time Periods ◽  
Cycle 24 ◽  
Automatic Detection Algorithm

<p><sup>3</sup>He-rich solar energetic particle (SEP) events are characterized by a peculiar elemental composition with rare species like <sup>3</sup>He or ultra-heavy ions tremendously enhanced over the solar system abundances.<br>We report on <sup>3</sup>He rich SEP periods measured by the Suprathermal Ion Telescope (SIT) onboard STEREO-A beginning in 2007 until 2020, covering the whole solar cycle 24.<br>The mass resolution capabilities of SIT do not allow to easily distinguish between <sup>3</sup>He and <sup>4</sup>He especially in cases of a low <sup>3</sup>He to <sup>4</sup>He ratio.<br>We therefore developed a semi-automatic detection algorithm to find time periods during which a <sup>3</sup>He enhancement can be statistically determined.<br>Using this method we found 112 <sup>3</sup>He rich periods.<br>These periods were further examined in regards of their <sup>3</sup>He/<sup>4</sup>He and Fe/O ratio. <br>Previously about ten <sup>3</sup>He-rich SEP periods measured by SIT on STEREO-A have been reported.<br>An association with in-situ electron measurements by STEREO-SEPT and STEREO-STE showed that ~60% of the 112 periods are accompanied with electron events.<br>The here presented catalogue of <sup>3</sup>He rich periods is intended to serve as a reference for the community.</p>

scholarly journals SOLAR SOURCES OF3He-RICH SOLAR ENERGETIC PARTICLE EVENTS IN SOLAR CYCLE 24

2015 ◽  
Vol 806 (2) ◽  
pp. 235 ◽  
Author(s):  
Nariaki V. Nitta ◽  
Glenn M. Mason ◽  
Linghua Wang ◽  
Christina M. S. Cohen ◽  
Mark E. Wiedenbeck
Keyword(s):  
Solar Cycle ◽  
Energetic Particle ◽  
Solar Energetic Particle ◽  
Solar Energetic Particle Events ◽  
Solar Cycle 24 ◽  
Cycle 24

scholarly journals Solar Variation and Super Geomagnetic Storm Event during March 10-31, 2015

2019 ◽  
Vol 9 (1) ◽  
pp. 2469-2472
Keyword(s):  
Magnetic Field ◽  
Solar Cycle ◽  
Geomagnetic Storm ◽  
Space Weather ◽  
Solar Flares ◽  
Storm Event ◽  
Earth Magnetic Field ◽  
Solar Cycle 24 ◽  
Cycle 24

CMEs and solar flares are important solar ejections which are the cause of storm in Heliosphere. These ejections are producing a change in Earth magnetic field. In this paper we have studied heliospheric disturbance of solar cycle 24 during period from 10 March to 31 March 2015. We observed that a huge explosion of magnetic field and plasma from the Sun’s corona on 15 March 2015 and associated solar flares have disturbed space weather towards earth causes strongest geomagnetic storm on 17 March 2015. We found that Dst value reached to its minimum is -223 nT and a FDs during the period on 17 March 2015.

scholarly journals GLOBAL DISTURBANCE OF EARTH’S MAGNETOSPHERE AND ITS CONNECTION WITH SPACE WEATHER

2020 ◽  
Vol 6 (1) ◽  
pp. 51-62
Author(s):  
Nadezhda Kurazhkovskaya
Keyword(s):  
Solar Wind ◽  
Solar Cycle ◽  
Space Weather ◽  
Interplanetary Medium ◽  
Dynamic Pressure ◽  
Annual Number ◽  
Solar Cycles ◽  
Winter Solstice ◽  
Solar Cycle 24 ◽  
Cycle 24

This paper deals with extreme conditions of the global magnetosphere disturbance: very quiet and greatly disturbed, and their relationship with interplanetary medium parameters. The degree of global magnetosphere disturbance was estimated from the monthly and annual number of magnetically quiet and magnetically disturbed days. The cyclic and seasonal distributions of magnetically quiet and disturbed days were compared, and their relationship with interplanetary medium parameters in solar cycles 20–24 was analyzed. Magnetically quiet days are shown to be mainly observed at the ascending phase of solar activity and during the winter solstice season. Magnetically disturbed days dominate at the descending phase of the solar cycle and during the equinox season. An anomalously large increase in the number of quiet days was found in solar cycle 24 as compared to previous cycles. It has been established that the cyclic variation in the annual number of quiet and disturbed days is determined by the behavior and magnitude of the speed, temperature, dynamic pressure of solar wind plasma and the interplanetary magnetic field modulus. The detected burst in the number of quiet days during the ascending phase of solar cycle 24 is assumed to reflect internal processes on the Sun and related changes in interplanetary medium parameters. The patterns of cyclical and seasonal variation in the number of magnetically quiet and disturbed days and their relationship with the solar wind parameters can be used to predict space weather.

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