Dr. Michael Sigmond


You have reached the old University of Toronto home page of Michael Sigmond
I am currently a research scientist at the Canadian Centre for Climate Modelling and Analysis at Environment Canada.
You can reach me at my new email address:
Michael dot Sigmond at ec.gc.ca


CV (last updated 14 March 2014)


Atmospheric large-scale circulation and its interactions with ocean and sea ice

















Publications (peer-reviewed): [with links to selected papers]


1.     Sigmond, M. and J.C. Fyfe, 2014: The Antarctic sea ice response to the ozone hole in climate models, J. Clim., 27, 1336 - 1342, doi 10.1175/JCLI-D-13-00590.1


2.     Kang, S. M., L. M. Polvani, J. C. Fyfe, S.-W. Son, M. Sigmond, G. J. P. Correa, 2013: Modeling evidence that ozone depletion has impacted extreme precipitation in the austral summer, Geophys. Res. Lett., 40, 4054-4059, doi:10.1002/grl.50769.


3.     Sigmond, M., J. F. Scinocca, V.V. Kharin, T.G. Shepherd, 2013:

Enhanced seasonal forecast skill following stratospheric sudden warmings,

Nature Geosci., 6, 98-102, doi:10.1038/ngeo1698.

[Press release]


4.     Sigmond, M., J. C. Fyfe, G.M. Flato, V.V. Kharin, W.J. Merryfield,

Seasonal forecast skill of Arctic sea ice area in a dynamical forecast system,

Geophys. Res. Lett., 40, 529-534, doi:10.1002/grl.50129


5.     Charlton-Perez, A.J., M. Baldwin, T. Birner, R.X. Black, A.H. Butler, N. Calvo, N.A.

Davis, E.P. Gerber, N. Gillett, S. Hardiman, J. Kim, K. Krueger, Y. Lee, E. Manzini, B.A.

McDaniel, L. Polvani, T. Reichler, T.A. Shaw, M. Sigmond, S. Son, M. Tohey, L.

Wilcox, S. Yoden, B. Christiansen, F. Lott, D. Shindell, S. Yukimoto, S. Watanabe,

On the lack of stratospheric dynamical variability in low-top versions of the CMIP5 models,

J. Geophys. Res., accepted.


6.     Sigmond, M., M. C. Reader, J.C. Fyfe, N. Gillett, 2011:

Drivers of past and future Southern Ocean change: stratospheric ozone versus greenhouse gas impacts,

Geophys. Res. Lett., 38, L12601, doi:10.1029/2011GL047120.

[AGU research spotlight]


7.     Kang, S.M., L.M. Polvani, J.C. Fyfe and M. Sigmond, 2011:

Impact of Polar Ozone Depletion on Subtropical Precipitation,

Science, 332, 951-954.

[In the news: Canada, Reuters, BBC]


8.     Simpson, I. R., T. G. Shepherd, and M. Sigmond, 2011:

Dynamics of the lower stratospheric circulation response to ENSO.

J. Atmos. Sc., 110627103230088, doi:10.1175/JAS-D-11-05.1.


9.     Butchart, N., A. J. Charlton-Perez, I. Cionni, S. C. Hardiman, P. H. Haynes, K. Kruger, P. Kushner, P. A. Newman, S. M. Osprey, J. Perlwitz, F. Sassi, M. Sigmond, L. Wang, H. Akiyoshi, J. Austin, S. Bekki, A. Baumgartner, G. Bodeker, P. Braesicke, C. Bruhl, M. Chipperfield, M. Dameris, S. Dhomse, H. Garny, P. Jockel, J.-F. Lamarque, M. Marchand, M. Michou, O. Morgenstern, T. Nakamura, S. Pawson, T. Peter, D. Plummer, J. Pyle, E. Rozanov, J. Scinocca, T. G. Shepherd, K. Shibata, D. Smale, R. Stolarski, H. Teyssedre, W. Tian, and Y. Yamashita, 2011:

Multimodel climate and variability of the stratosphere,

J. Geophys. Res., 116, D05102, doi:10.1029/2010JD014995.


10.  Forster, P., V. Fomichev, E. Rozanov, C. Cagnazzo, A. Jonsson, U. Langematz, B. Formin, M. Iacono, B. Mayer, E. Mlawer, G. Myhre, R. Portmann, H. Akiyoshi, V. Falaleeva, N. Gillett, A. Karpechko, J. Li, P. Lemennais, O. Morgenstern, S. Oberlander, M. Sigmond, and K. Shibata, 2011:

Evaluation of radiation scheme performance within chemistry-climate models,

J. Geophys. Res., 116, D10302, doi:10.1029/2010JD015361.


11.  McLandress, C., A. Jonsson, D.A. Plummer, M.C. Reader, J.F. Scinocca, T.G. Shepherd, M. Sigmond, 2011:

Separating the dynamical effects of climate change and ozone depletion: Part 2. Southern Hemisphere Troposphere,

J. Clim , 24, 1850-1868.


12.  Sigmond, M. and J. C. Fyfe, 2010:

Has the ozone hole contributed to increased Antarctic sea ice extent?,

Geophys. Res. Lett., 37, L18502, doi:10.1029/2010GL044301.

[AGU Research Spotlight]


13.  Sigmond, M., J. C. Fyfe, J. F. Scinocca, 2010:

Does the ocean impact the atmospheric response to stratospheric ozone depletion?

Geophys. Res. Lett., 37, L12706, doi:10.1029/2010GL043773.

[AGU Research Spotlight]


14.  Sigmond, M. and J. F. Scinocca, 2010:

The Influence of Basic State on the Northern Hemisphere Circulation Response to Climate Change,

J. Clim., 23, 1434-1446.


15.  Alexander, M.J., M. Geller, C. McLandress, S. Polavarapu, P. Preusse, F. Sassi, K. Sato, S. Eckermann, M. Ern, A. Hertzog, Y. Kawatani, M. Pulido, T. Shaw, M. Sigmond, R.Vincent, S. Watanabe, 2010:

A Review of Recent Developments on Gravity Wave Effects in Climate Models and the Global Distribution of Gravity Wave Momentum Flux,

Q. J. R. Meteorol. Soc., 136, 1103-1124.


16.  Butchart, N., A.J. Charlton-Perez, I. Cionni, S. C. Hardiman, K. Kruger, P. Kushner, P. Newman, S. M. Osprey, J. Perlwitz, F. Sassi, M. Sigmond, L. Wang, 2010:

Chapter 4: Stratospheric Dynamics,

SPARC Report on the Evaluation of Chemistry-Climate Models, V. Eyring, T. G. Shepherd, D. W. Waugh (Eds.), SPARC Report No. 5, WCRP-132, WMO/TD-No. 1526.


17.  Fomichev, V.I., P.M. Forster, C. Cagnazzo, A.I. Jonsson, U. Langematz, E. Rozanov, V. Falaleeva, B. Fomin, N. Gillett, M. Iacono, A. Karpechko, J. Li, P. Lemennais, B. Mayer, E. Mlawer, O. Morgenstern, G. Myhre, S. Oberlander, R. Portmann, M. Sigmond, 2010:

Chapter 3: Radiation,

SPARC Report on the Evaluation of Chemistry-Climate Models, V.Eyring, T. G. Shepherd, D. W. Waugh (Eds.), SPARC Report No. 5, WCRP-132, WMO/TD-No. 1526.


18.  Mitovski, T., I. Folkins, K. von Salzen, M. Sigmond, 2010:

Temperature, relative humidity, and divergence to high rainfall events in the tropics: Observations and models,

J. Clim, 23, 3613-3625, DOI: 10.1175/2010JCLI3436.1


19.  Morgenstern, O, H. Akiyoshi, S. Bekki, P. Braesicke, N. Butchart, M. P. Chipperfield, D. Cugnet, M. Deushi, S. S. Dhomse, R. Garcia, A.Gettelman, N. P. Gillett, S. C. Hardiman, J. Jumelet, D. Kinnison, J.-F. Lamarque, F. Lott, M. Marchand, M. Michou, T. Nakamura, D. Olivie, S. Pawson, T. Peter, D. Plummer, J. A. Pyle, E. Rozanov, D. Saint-Martin, J. F. Scinocca, K. Shibata, M. Sigmond, D. Smale, H Teyssedre, W. Tian, A. Voldoire, Y. Yamashita, 2010:

Anthropogenic forcing of the Northern Annular Mode in CCMVal-2 models,

J. Geophys. Res., 115, D00M03, doi:10.1029/2009JD013347.


20.  Scinocca, J. F., M.C. Reader, D. Plummer, M. Sigmond, P.J. Kushner, T.G. Shepherd and A.R. Ravishankara, 2009:

The Impact of Sudden Arctic Sea-Ice Loss on Stratospheric Polar Ozone Recovery,

Geophys. Res. Lett, 36, L24701, doi:10.1029/2009GL041239


21.  Shaw, T. A., M. Sigmond, J. F. Scinocca, and T. G. Shepherd, 2009:

Sensitivity of Simulated Climate to Conservation of Momentum in Gravity Wave Drag Parameterization,

J. Clim, 22, 2726-2742.


22.  Sigmond, M., J. F. Scinocca, and P. J. Kushner, 2008:

Impact of the Stratosphere on Tropospheric Climate Change,

Geophys. Res. Lett., 35, L12706, doi:10.1029/2008GL033573.

[AGU Journal highlight]


23.  Haklander, A. J., P. C. Siegmund, M. Sigmond, and H. M. Kelder, 2008:

How does the northern-winter wave driving of the Brewer-Dobson circulation increase in an enhanced-CO2 climate simulation?

Geophys. Res. Lett., 35, L07702, doi:10.1029/2007GL033054.


24.  Kodera, K., M. E. Hori, S. Yukimoto and M. Sigmond, 2008:

Solar modulation of the northern hemisphere winter circulation trends and its implications with increasing CO2,

Geophys. Res. Lett., 35, L03704


25.  Sigmond, M., P. J. Kushner, and J. F. Scinocca, 2007:

Discriminating robust and non-robust atmospheric circulation responses to global warming,

J. Geophys. Res., 112, D20121, doi:10.1029/2006JD008270.


26.  Butchart, N., A.A. Scaife, M. Bourqui, J. de Grandpre, S. H. E. Hare, J. Kettleborough, U. Langematz, E. Manzini, F. Sassi, K. Shibata, D. Shindell and M. Sigmond, 2006:

Simulations of anthropogenic change in the strength of the Brewer-Dobson circulation,

Clim. Dyn., 27, 727-741, doi: 10.1007/s00382-006-0162-4.


27.  Sigmond, M., P.C. Siegmund, E. Manzini, and H. Kelder, 2004:

A simulation of the separate climate effects of middle atmospheric and tropospheric CO2 doubling.

J. Climate, 17(12), 2352-2367.



28.  Sigmond, M., P.C. Siegmund, and H. Kelder, 2003:

Analysis of the coupling between the stratospheric meridional wind and the surface level zonal wind during 1979-93 NH extratropical winters.

Clim. Dyn., 21, 211-219, doi: 10.1007/s00382-003-0328-2.


29.  Fortuin, J.P.F., H.M. Kelder, M. Sigmond, R. Oemraw, and C.R. Becker, 2003:

Inertial instability flow in the troposphere over Suriname during the South American Monsoon.

Geophys. Res. Lett., 30, 1482, doi:10.1029/2002GL016754.


30.  Meloen, J., P.C. Siegmund, and M. Sigmond, 2001:

A Lagrangian computation of stratosphere-troposphere exchange in a tropopause folding event in the subtropical Southern Hemisphere.

Tellus, 53, 367-378.


31.  Sigmond, M., J. Meloen, and P.C. Siegmund, 2000:

Stratosphere-troposphere exchange in an extratropical cyclone, calculated with a Lagrangian method.

Ann. Geophys., 18, 573-582.


Publications (other):


1.     Sigmond, M., P. J. Kushner, W. A. Robinson and T. G. Shepherd, 2006:

Dynamics of the stratospheric circulation response to climate change,

SPARC newsletter 27, 10-12


2.     Sigmond, M., P.C. Siegmund, H. Kelder, 2005:

Zachtere winters door klimaatveranderingen op grote hoogte,

Nederlands tijdschrift voor natuurkunde, september 2005, 280-283


3.     Siegmund, P., M. Sigmond, and H. Kelder, 2004:

The stratosphere as a puppeteer of European winter climate

Eu. Phys. News, 35(3), 73-75.


4.     Sigmond M., 2003:

On the coupling between the stratosphere and the troposphere,

PhD thesis, Universiteitsdrukkerij Technische Universiteit Eindhoven, 120 pp.


5.     Sigmond M., 1999:

PV-mixing around the tropopause in an extratropical cyclone

Technical Report 221, KNMI





last modified: 18 April, 2013


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