Polar vortex animation during Stratospheric Sudden Warming / Stratospheric Vortex Weakening events (Southern-Hemisphere)

Animated evolution of Southern-Hemisphere’s stratospheric polar vortex at 10 hPa

The evolution of Stratospheric Sudden Warming (SSW) or Stratospheric Vortex Weakening (SVW) events. Final warming events are included. Detection criterion uses -4.5 as threshold to illustrate minor events as well. Dates indicate weakest vortex state according to SAM index and therefore differ from classical SSW definition. Please refer to [1, 2] for detailed methodology for computing annular modes index. Other relevant references for annular mode indices include [3, 4, 5, 6]

[1] [doi] P. Martineau and S. Son, “Quality of reanalysis data during stratospheric vortex weakening and intensification events,” Geophys. res. lett., vol. 37, iss. L22801, 2010.
[Bibtex]
@article{Martineau2010,
author = {Martineau, Patrick and Son, Seok-Woo},
doi = {10.1029/2010GL045237},
file = {:C$\backslash$:/Users/Patrick/Documents/Mendeley Desktop//Martineau, Son - 2010.pdf:pdf},
journal = {Geophys. Res. Lett.},
number = {L22801},
title = {{Quality of reanalysis data during stratospheric vortex weakening and intensification events}},
volume = {37},
year = {2010}
}
[2] [doi] P. Martineau and S. Son, “Planetary-scale wave activity as a source of varying tropospheric response to stratospheric sudden warming events: A case study,” J. geophys. res. atmos., 2013.
[Bibtex]
@article{Martineau2013,
author = {Martineau, Patrick and Son, Seok-woo},
doi = {10.1002/jgrd.50871},
file = {:C$\backslash$:/Users/Patrick/Documents/Mendeley Desktop/Martineau, Son - 2013.pdf:pdf},
issn = {2169897X},
journal = {J. Geophys. Res. Atmos.},
month = oct,
title = {{Planetary-scale wave activity as a source of varying tropospheric response to stratospheric sudden warming events: A case study}},
url = {http://doi.wiley.com/10.1002/jgrd.50871},
year = {2013}
}
[3] M. P. Baldwin and T. J. Dunkerton, “Propagation of the Arctic Oscillation from the stratosphere to the troposphere,” J. geophys. res., vol. 104, p. 30,930–937,946, 1999.
[Bibtex]
@article{Baldwin1999,
author = {Baldwin, Mark P and Dunkerton, Timothy J},
file = {:C$\backslash$:/Users/Patrick/Documents/Mendeley Desktop//Baldwin, Dunkerton - 1999.pdf:pdf},
journal = {J. Geophys. Res.},
pages = {30,930--937,946},
title = {{Propagation of the Arctic Oscillation from the stratosphere to the troposphere}},
volume = {104},
year = {1999}
}
[4] D. W. J. Thompson and J. M. Wallace, “Annular Modes in the Extratropical Circulation. Part I: Month-to-Month Variability,” J. climate, vol. 13, pp. 1000-1016, 2000.
[Bibtex]
@article{Thompson2000,
author = {Thompson, David W J and Wallace, John M},
file = {:C$\backslash$:/Users/Patrick/Documents/Mendeley Desktop/Thompson, Wallace - 2000.pdf:pdf},
journal = {J. Climate},
pages = {1000--1016},
title = {{Annular Modes in the Extratropical Circulation. Part I: Month-to-Month Variability}},
volume = {13},
year = {2000}
}
[5] D. W. J. Thompson, M. P. Baldwin, and J. M. Wallace, “Stratospheric Connection to Northern Hemisphere Wintertime Weather : Implications for Prediction,” J. climate, vol. 15, pp. 1421-1428, 2002.
[Bibtex]
@article{Thompson2002,
author = {Thompson, David W J and Baldwin, Mark P and Wallace, John M},
file = {:C$\backslash$:/Users/Patrick/Documents/Mendeley Desktop/Thompson, Baldwin, Wallace - 2002.pdf:pdf},
journal = {J. Climate},
pages = {1421--1428},
title = {{Stratospheric Connection to Northern Hemisphere Wintertime Weather : Implications for Prediction}},
volume = {15},
year = {2002}
}
[6] [doi] M. P. Baldwin and D. W. J. Thompson, “A Critical Comparison of Stratosphere-Troposphere Coupling Indices,” Q. j. r. mereorol. soc., vol. 135, pp. 1661-1672, 2009.
[Bibtex]
@article{Baldwin2009,
author = {Baldwin, Mark P and Thompson, David W J},
doi = {10.1002/qj.479},
file = {:C$\backslash$:/Users/Patrick/Documents/Mendeley Desktop/Baldwin, Thompson - 2009.pdf:pdf},
journal = {Q. J. R. Mereorol. Soc.},
pages = {1661--1672},
title = {{A Critical Comparison of Stratosphere-Troposphere Coupling Indices}},
volume = {135},
year = {2009}
}

Warning: substr() expects parameter 2 to be long, string given in /home/pmartineau/webapps/work/wp-content/themes/twentytwelvechild/custom2.php on line 40

Stratospheric Sudden Warming , October 16 2012 , Stratospheric Vortex Weakening


Warning: fopen(http://www.meteo.mcgill.ca/~pmartineau/updated_graphs/svw_anim/all_s_stats/.txt): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in /home/pmartineau/webapps/work/wp-content/themes/twentytwelvechild/custom2.php on line 45

Warning: fgets() expects parameter 1 to be resource, boolean given in /home/pmartineau/webapps/work/wp-content/themes/twentytwelvechild/custom2.php on line 46

Warning: fclose() expects parameter 1 to be resource, boolean given in /home/pmartineau/webapps/work/wp-content/themes/twentytwelvechild/custom2.php on line 47
  • Minimum SAM during event

  • Stratospheric sudden warming 2012_10_16


    Warning: substr() expects parameter 2 to be long, string given in /home/pmartineau/webapps/work/wp-content/themes/twentytwelvechild/custom2.php on line 40

    Stratospheric Sudden Warming , September 27 2002 , Stratospheric Vortex Weakening


    Warning: fopen(http://www.meteo.mcgill.ca/~pmartineau/updated_graphs/svw_anim/all_s_stats/.txt): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in /home/pmartineau/webapps/work/wp-content/themes/twentytwelvechild/custom2.php on line 45

    Warning: fgets() expects parameter 1 to be resource, boolean given in /home/pmartineau/webapps/work/wp-content/themes/twentytwelvechild/custom2.php on line 46

    Warning: fclose() expects parameter 1 to be resource, boolean given in /home/pmartineau/webapps/work/wp-content/themes/twentytwelvechild/custom2.php on line 47
  • Minimum SAM during event

  • Stratospheric sudden warming 2002_09_27


    Warning: substr() expects parameter 2 to be long, string given in /home/pmartineau/webapps/work/wp-content/themes/twentytwelvechild/custom2.php on line 40

    Stratospheric Sudden Warming , August 24 2002 , Stratospheric Vortex Weakening


    Warning: fopen(http://www.meteo.mcgill.ca/~pmartineau/updated_graphs/svw_anim/all_s_stats/.txt): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in /home/pmartineau/webapps/work/wp-content/themes/twentytwelvechild/custom2.php on line 45

    Warning: fgets() expects parameter 1 to be resource, boolean given in /home/pmartineau/webapps/work/wp-content/themes/twentytwelvechild/custom2.php on line 46

    Warning: fclose() expects parameter 1 to be resource, boolean given in /home/pmartineau/webapps/work/wp-content/themes/twentytwelvechild/custom2.php on line 47
  • Minimum SAM during event

  • Stratospheric sudden warming 2002_08_24


    Warning: substr() expects parameter 2 to be long, string given in /home/pmartineau/webapps/work/wp-content/themes/twentytwelvechild/custom2.php on line 40

    Stratospheric Sudden Warming , November 1 1988 , Stratospheric Vortex Weakening


    Warning: fopen(http://www.meteo.mcgill.ca/~pmartineau/updated_graphs/svw_anim/all_s_stats/.txt): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in /home/pmartineau/webapps/work/wp-content/themes/twentytwelvechild/custom2.php on line 45

    Warning: fgets() expects parameter 1 to be resource, boolean given in /home/pmartineau/webapps/work/wp-content/themes/twentytwelvechild/custom2.php on line 46

    Warning: fclose() expects parameter 1 to be resource, boolean given in /home/pmartineau/webapps/work/wp-content/themes/twentytwelvechild/custom2.php on line 47
  • Minimum SAM during event

  • Stratospheric sudden warming 1988_11_01


    Warning: substr() expects parameter 2 to be long, string given in /home/pmartineau/webapps/work/wp-content/themes/twentytwelvechild/custom2.php on line 40

    Stratospheric Sudden Warming , September 28 1988 , Stratospheric Vortex Weakening


    Warning: fopen(http://www.meteo.mcgill.ca/~pmartineau/updated_graphs/svw_anim/all_s_stats/.txt): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in /home/pmartineau/webapps/work/wp-content/themes/twentytwelvechild/custom2.php on line 45

    Warning: fgets() expects parameter 1 to be resource, boolean given in /home/pmartineau/webapps/work/wp-content/themes/twentytwelvechild/custom2.php on line 46

    Warning: fclose() expects parameter 1 to be resource, boolean given in /home/pmartineau/webapps/work/wp-content/themes/twentytwelvechild/custom2.php on line 47
  • Minimum SAM during event

  • Stratospheric sudden warming 1988_09_28

    Leave a Reply

    Your email address will not be published. Required fields are marked *