Studies of the Influence of Galactic Cosmic Rays on the Cloud Cover of the Earth. Review of Research in Recent Decades


  • Irina P. Mkurnalidze
  • Naili I. Kapanadze



Galactic cosmic rays, cloud cover, temperature anomaly, global temperature


A review of scientific studies of the existence of the influence of galactic cosmic rays on cloudiness on Earth and, accordingly, on climatic fluctuations is given. Corresponding illustrations are presented.  Describes the work on this topic, carried out in the international center CERN (project "CLOUD"). The article examines the research of the last decades.


Mkurnalidze I., Kapanadze N. Cosmic Rays and their Influence on the Earth's Atmosphere (Contemporary Achievements). Int. Sc. Conf. „Modern Problems of Ecology“, Proc., ISSN 1512-1976, v. 7, Tbilisi-Telavi, Georgia, 26-28 September, 2020, pp. 279-283, (in Georgian)

Svensmark H. Variation cosmic ray flux and global cloud coverage a missing link in solar-climate relationship, Journal at Atmospheric and Solar-Terrestrial Physics, vol.59, issue 11, 1997, pp. 1125-1132.

Krivova N.A., Vieira L.E.A., Solanki S.K. Reconstruction of Solar spectral irradiance since the Maunder minimum, Journal of Geophysical Research Spice physics, vol. 115, issue A12, 2010.

Benestad R.E. Learning from mistakes in climate research, Theoretical and applied climatology, 126, 2016, pp. 699-703.

Meweldt R. Cosmic rays Hit Spare Age High Solar Eruptions and Energetic Particles, (Geophysical Monograph Series) 1st Edition, ISBN-13:978-0875904306, ISBN-10:0875904300, 365p.

Pierce P.J, Adams C. Cosmic rays affect cloud condensation nuclei by altering new particle formation rates? Geophysical Research Letters, vol.36, issue 9, 2009.

Kazil J., Lovejing E.R.L. Aerosol nucleation over ocean and the role of galactic cosmic rays. Atmos. Chem. Phys.,6, 4905-4924-2006, 1006.

Sloan T., Wolfendale A.W. Cosmic rays, solar activity and the climate. Environmental Research Letters, Vol.8, Num.4, 2013.

Calogovic J. et. al Sudden cosmic ray decreases: No change of global cloud cover. Geophysical Research Letters, Vol.37, issue 3, 2010.

Kristjansson J.E. et. al. Cosmic Rays, CCN and Clouds-reassessment using MODIS data. Atmos. Chem. Phys. Discuss., 8, 13265-13299, 2008.

Krissansen-Totton J., Davies R. Investigation of cosmic ray-cloud connections using MISR. Department of Physics the University of Oucklend, New Zeland, 2013.

Veretenenko S., Ogurtsov M., Lindholm M., Jolkenen R. Galactic Cosmic Rays and Low Clouds: Possible Reasons for Correlation Reversal. Submitted: December 12th 2017 Reviewed:February 14th 2018 Published: August 22nd 2018, DOI:10.5772/intechopen. 75428

Abdussamatov H.I. Earth’s Climate Does Not Depend on Variations in Cosmic Rays and Cloud Coverage. Geomagnetism and Aeronomy, 59, Publish 11 March 2020, pp. 935-941.

Amiranashvili A., Bliadze T., Chikhladze V. Photochemical smog in Tbilisi. Monograph, Trans. of Mikheil Nodia institute of Geophysics, ISSN 1512-1135, v. 63, Tb., 2012, 160 p., (in Georgian).

Amiranashvili A.G. On the Role of Cosmic and Radioactive Radiation on the Formation of the Secondary Aerosols in Atmosphere. Int. Conference “Near-Earth Astronomy 2007”, Abstract, Terskol, Russia, September 3-7, 2007, p. 85.

Amiranashvili A.G., Amiranashvili V.A., Bakradze T.S., Chikhladze V.A., Glonti N. Ya., Kharchilava J.F., Tuskia I.I On the Influence of Cosmic Rays on the Secondary Aerosols Formation in the Atmosphere. 7th Int. Conference "Problems of Geocosmos", Abstract, St. Petersburg, Russia, May 26 - 30, 2008.

Todua M., Didebulidze G. G. Cosmic factors influence on the inter-annual variations of the green 557.7 Nm line and red 630.0 Nm line nightglow intensities and their possible coupling with cloud covering at Abastumani (41.75°N, 42.82°E). Acta Geophysica, v. 62, iss. 2, 2014, pp.381-399.

Didebulidze G.G., Todua M. Investigation of presence of cosmic factors in the inter-annual distributions of cloudless days and nights in Abastumani. Sun and Geosphere, v.10, No.1, 2015, pp. 59-63.

Amiranashvili A.G., Bakradze T.S., Ghlonti N.Ya., Khurodze T.V., Tuskia I.I. On the Connection Between Annual Variations of the Intensity of Galactic Cosmic Rays and the Changeability of Cloudiness and Air Temperature in Tbilisi. Journal of the Georgian Geophysical Society, Issue B. Physics of Atmosphere, Ocean and Space Plasma, v.19B, Tbilisi, 2016, pp. 128-134.

Amiranashvili A., Bakradze T., Erkomaishvili T., Ghlonti N., Tuskia I. On the Relationship of Annual Variations of the Intensity of Galactic Cosmic Rays with the Variability of Total Cloudiness, Atmospheric Precipitation and Air Temperature in Tbilisi in 1966-2015. Journal of the Georgian Geophysical Society, ISSN: 1512-1127, Physics of Solid Earth, Atmosphere, Ocean and Space Plasma, v. 23(2), 2020, pp. 64 – 71.

Kirkby J. Interview by Paola Catapano and Matthew Chalmers. CERN, May 2020.




How to Cite

Mkurnalidze, I. P. ., & Kapanadze, N. I. . (2021). Studies of the Influence of Galactic Cosmic Rays on the Cloud Cover of the Earth. Review of Research in Recent Decades. JOURNAL OF THE GEORGIAN GEOPHYSICAL SOCIETY, 24(2).