Quasi-periodicities in cosmic rays and time lag with the solar activity at a middle latitude neutron monitor: 1982-2017

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F18%3A00497094" target="_blank" >RIV/61389005:_____/18:00497094 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/s10509-018-3467-y" target="_blank" >http://dx.doi.org/10.1007/s10509-018-3467-y</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10509-018-3467-y" target="_blank" >10.1007/s10509-018-3467-y</a>

Result language

angličtina

Original language name

Quasi-periodicities in cosmic rays and time lag with the solar activity at a middle latitude neutron monitor: 1982-2017

Original language description

Galactic cosmic rays (GCRs) after entering the heliosphere are continuously modulated by the change in solar wind and the associated heliosphericmagnetic field. GCRs also follow about 11 year sunspot cycle in an inverse way with some time lag of few months to years, which usually varies from cycle to cycle Badruddin etal. 2007, Kane 2014, Aslam and Badruddin 2015 (e.g. Badruddin et al. in Astron. Astrophys. 466(2):697-704, 2007, Kane in Sol. Phys. 289:2669-2675, 2014, Aslam and Badruddin in Sol. Phys. 290:2333, 2015). In this work, we have investigated solar modulation of GCRs measured at three mid cut-off rigidity neutron monitor stations for the period of 1982 to 2017, covering two complete solar cycles and a major part of the recent cycle24. We study the time lag between GCRs intensity and various solar, geomagnetic and interplanetary parameters separately during the solar cycles under investigation. Further, we have investigated the presence and temporal evolution of mid term quasi-periodicities of GCRs time series during the above mentioned phases utilizing both Morlet wavelet transform and Scargle periodogram technique. Power spectral analysis indicates the presence of several mid term quasi-periodicities including Rieger type and Quasi-biennial oscillations. We discuss the findings and compare them with results of other authors.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10308 - Astronomy (including astrophysics,space science)

Project

<a href="/en/project/EF15_003%2F0000481" target="_blank" >EF15_003/0000481: Research Center of Cosmic Rays and Radiation Events in the Atmosphere</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Astrophysics and Space Science

ISSN

0004-640X

e-ISSN

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Volume of the periodical

363

Issue of the periodical within the volume

12

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

17

Pages from-to

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UT code for WoS article

000450075200001

EID of the result in the Scopus database

2-s2.0-85056430479