Costas Varotsos

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Βαρώτσος Κωνσταντίνος.jpg

Costas Varotsos (Greek: Κώστας Βαρώτσος; born 14 August 1956) is a Greek physicist known from his contribution to the global climate-dynamics research and remote sensing.[1]


Varotsos pointed out the occurrence of major sudden stratospheric warming over Antarctica in September 2002, an event which resulted in both the smaller-sized ozone hole over Antarctica and its splitting into two holes.[2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] (see Highlights of United Nations Environmental Programme.[18])

Prior to September 2002, it was thought, that a major sudden stratospheric warming could happen only in the Northern Hemisphere. His follow-up work on this subject published in Eos Transactions - the official Journal of the American Geophysical Union;[2][19][20][21] and the Europhysics News.

Varotsos suggested the fractal structure of the total ozone and temperature in the Earth's atmosphere. In 2005-2006 he showed that processes based on the nonlinear nature of the atmospheric dynamics could probably address the question “What caused the southern hemisphere to exhibit very strong planetary waves in 2002?” This evidence is based on his new finding that the fluctuations of the total ozone content and temperature exhibit long-range correlations.[22][23][24][25]

Varotsos has contributed to the fields of Remote Sensing, Atmospheric Physics & Chemistry, and Environmental change with 10 international books (monographs[1]) published by Springer Publishing during 2000-2013.


  1. ^ a b "Prof. Dr. Costas Varotsos CV". Retrieved 2013-10-07. 
  2. ^ a b Kondratyev, K. Ya, and A. P. Cracknell (2005). "Preface". International Journal of Remote Sensing , 26, 3331-3332. Retrieved 2013-12-02. 
  3. ^ Von Savigny, C., et al. (2005). "The ozone hole breakup in September 2002 as seen by SCIAMACHY on ENVISAT". Journal of the Atmospheric Sciences, 62, 721-734. Retrieved 2013-12-02. 
  4. ^ Glatthor, N., et al. (2005). "Mixing processes during the Antarctic vortex split in September-October 2002 as inferred from source gas and ozone distributions from ENVISAT-MIPAS". Journal of the Atmospheric Sciences, 62, 787-800. Retrieved 2013-12-02. 
  5. ^ Manney, Gloria L., et al. (2005). "Simulations of dynamics and transport during the September 2002 Antarctic major warming". Journal of the Atmospheric Sciences, 62, 690-707. Retrieved 2013-12-02. 
  6. ^ Pazmiño, Andrea F., et al. (2005). "Impact of Antarctic polar vortex occurrences on total ozone and UVB radiation at southern Argentinean and Antarctic stations during 1997–2003 period". Journal of Geophysical Research: Atmospheres (1984–2012), 110.D3. Retrieved 2013-12-02. 
  7. ^ Bortoli, D., et al. (2005). "Stratospheric nitrogen dioxide in the Antarctic". Journal of Remote Sensing, 26, 3395-3412. Retrieved 2013-12-02. 
  8. ^ Dowdy, Andrew J., et al. (2007). "Polar mesosphere and lower thermosphere dynamics: 2. Response to sudden stratospheric warmings". Journal of Geophysical Research: Atmospheres (1984–2012), 112.D17. Retrieved 2013-12-02. 
  9. ^ Wang, D. Y., et al. (2005). "Longitudinal variations of temperature and ozone profiles observed by MIPAS during the Antarctic stratosphere sudden warming of 2002". Journal of Geophysical Research: Atmospheres (1984–2012), 110.D20. Retrieved 2013-12-02. 
  10. ^ Gillett, N. P., et al. (2011). "Attribution of observed changes in stratospheric ozone and temperature". Atmospheric Chemistry and Physics , 11, 599-609. Retrieved 2013-12-02. 
  11. ^ Hofmann, D. J., B. J. Johnson, and S. J. Oltmans (2009). "Twenty-two years of ozonesonde measurements at the South Pole". International Journal of Remote Sensing , 30, 3995-4008. Retrieved 2013-12-02. 
  12. ^ Siegmund, Peter, Henk Eskes, and Peter van Velthoven (2005). "Antarctic ozone transport and depletion in austral spring 2002". Journal of the Atmospheric Sciences , 62, 838-847. Retrieved 2013-12-02. 
  13. ^ Poberaj, C. Schnadt, Johannes Staehelin, and Dominik Brunner (2011). "Missing stratospheric ozone decrease at Southern Hemisphere middle latitudes after Mt. Pinatubo: a dynamical perspective". Journal of the Atmospheric Sciences , 68, 1922-1945. Retrieved 2013-12-02. 
  14. ^ Jadin, E. A., and P. N. Vargin (2004). "Antarctic Ozone Hole in 2002 and SST anomalies in the South Oceans". Proc. Quadr. Ozone Symp, 1-8 June 2004, Kos, Greece , 1033-1034. 
  15. ^ Troshichev, O., and I. Gabis (2005). "Effects of solar UV irradiation on dynamics of ozone hole in Antarctica". Journal of atmospheric and solar-terrestrial physics , 67, 93-104. Retrieved 2013-12-02. 
  16. ^ Chubachi, S., K. Miyagawa, and Y. Makino (2005). "A case study of the low total ozone event over Europe on 14 February 2001". International Journal of Remote Sensing , 26, 3423-3431. Retrieved 2013-12-02. 
  17. ^ Jain, S. L., et al. (2008). "Trend Analysis of Total Column Ozone over New Delhi, India". MAPAN-Journal of Metrology Society of India , 23, 63-69. 
  18. ^ Varotsos, C. (2002). "The Southern Hemisphere Ozone Hole Split in 2002" (PDF). ESPR-Environmental Science and Pollution Research, 9, 375-376. Retrieved 2013-12-02. 
  19. ^ Varotsos, C. (2003). "Why did a "no-ozone-hole" episode occur in Antarctica?". Eos, Transactions American Geophysical Union , 84, 183. Retrieved 2013-12-02. 
  20. ^ Jadin, E. A., et al. (2005). "Influence of atmospheric circulation variations on the ozone layer". International Journal of Remote Sensing , 26, 3467-3478. Retrieved 2013-12-02. 
  21. ^ Semane, N., et al. (2006). "An unusual stratospheric ozone decrease linked to isentropic air-mass transport as observed over Irene (25.5° S, 28.1° E) in mid-May 2002". Atmospheric Chemistry and Physics , 6, 1927-1936. Retrieved 2013-12-02. 
  22. ^ Chattopadhyay, Goutami, and Surajit Chattopadhyay (2009). "Autoregressive forecast of monthly total ozone concentration: A neurocomputing approach". Computers & Geosciences , 35, 1925-1932. Retrieved 2013-12-02. 
  23. ^ Nerushev, A. F. (2008). "Perturbations of the ozone layer induced by intense atmospheric vortices". International Journal of Remote Sensing , 29, 2705-2732. Retrieved 2013-12-02. 
  24. ^ Hu, Y., and Q. Fu (2009). "Stratospheric warming in Southern Hemisphere high latitudes since 1979". Atmospheric Chemistry and Physics , 9, 4329-4340. Retrieved 2013-12-02. 
  25. ^ Lekien, Francois, and Chad Coulliette. (2007). "Chaotic stirring in quasi-turbulent flows". Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences , 365(1861), 3061-3084. Retrieved 2013-12-02.