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Dr. Achim Stössel
Achim Stössel
(979) 862-4170
(979) 847-8879
Eller O&M 606

Texas A&M University O&M Building
Room 606 MS 3146 
College Station, Texas 77843


Ph.D. Physical Oceanography, University of Hamburg, Germany, 1990, Dissertation at Max Planck Institute for Meteorology, Hamburg.

M.S. Physical Oceanography, University of Hamburg, 1985, Thesis at German Hydrographic Institute, Hamburg.

B.S. Physical Oceanography, University of Kiel, Germany, 1977. 

Unlimited Master and Chief Mate certificate for Merchant Marine, Hamburg, 1986. 

M. Eng. Nautical Engineering, Maritime College, Hamburg, 1982.


OCNG 251: Oceanography
OCNG 410: Physical oceanography 
OCNG 608: Physical oceanography
OCNG 614: Dynamics of ocean and atmosphere 
OCNG 615: Numerical modeling of ocean circulation I 
OCNG 616: Numerical modeling of ocean circulation II 

Achim Stössel

Associate Professor
Physical Oceanography: Representation of Polar Processes in Climate Models

Research Interests

  • Representation of high-latitude Southern Ocean in global climate models
  • Impact of Antarctic sea-ice and convection on deep-ocean properties and circulation
  • Sea-ice and convection induced variability of deep-western boundary currents
  • Atmospheric boundary layer over heterogeneous sea ice
  • Model representation of oceanic convective plumes under Southern Ocean sea ice
  • Impact of Antarctic orographic effects on model representation of coastal polynyas
  • Development of open-ocean polynyas in high-resolution Earth system models

Current Projects/Collaborations:

  • Center for Space and Earth Science (CSES)/National Science Education Center (NSEC)/Los Alamos National Laboratory (LANL): Project “Open-Ocean Polynyas and Bottom Water Formation in a High-Resolution Earth System Model (ESM) Simulation”, includes extended visits of Ph.D. student Prajvala Kurtakoti at LANL. Collaborators: Milena Veneziani, Wilbert Weijer.
  • Max-Planck-Institute for Meteorology (MPI-M): Collaboration on “High Frequency and Mesoscale Variability of Sea Ice in High-Resolution MPI Ocean Model (MPIOM)” and “Propagation of Deep- and Bottom-Water Anomalies in High-Resolution versus Low-Resolution MPIOM”. Collaborators: Jin-Song von Storch, Dirk Notz, Helmuth Haak, Rüdiger Gerdes (AWI), Johann Jungclaus.

Selected Publications

  • Kurtakoti, P., Veneziani, M., Stössel, A., and Weijer, W. 2018. Preconditioning and formation of Maud Rise polynyas in a high-resolution Earth System Model. Journal of Climate, doi:   10.1175/JCLI-D-18-0392.1.
  • Stössel, A., von Storch, J-S., Notz, D., Haak, H., and Gerdes, R. 2018. High-frequency and meso-scale winter sea-ice variability in the Southern Ocean in a high-resolution global ocean model. Ocean Dynamics 68, 347-361, doi: 10.1007/s10236-018-1135-y.
  • Weijer, W., Veneziani, M., Stössel, A., Hecht, M., Jeffery, N., Jonko, A., Hodos, T., and Wang, H., 2017: Local Atmospheric Response to an Open-Ocean Polynya in a High-Resolution Climate Model. J. Climate, doi:10.1175/JCLI-D-16-0120.1.
  • Zhang, Z., Uotila, P., Stössel, A., Vihma, T., Liu, H., and Zhong, Y., 2017: Seasonal southern hemisphere multi-variable reflection of the southern annular mode in atmosphere and ocean reanalyses. Clim. Dyn., doi:10.1007/s00382-017-3698-6.
  • Stössel, A. 2017. Ice mechanics and structures. Encyclopedia of Marine and Offshore Engineering. Wiley, U.K., 1-9, doi:10.1002/9781118476406.emoe132.
  • Zhang, Z., Vihma, T., Stössel, A., and Uotila, P. 2015. The role of wind forcing from operational analyses for the model representation of Antarctic coastal sea ice. Ocean Modelling 94, 95-111.
  • Stössel, A., Notz, D., Haumann, F.A., Haak, H., Jungclaus, J., and Mikolajewicz, U. 2015. Controlling high-latitude southern ocean convection in climate models. Ocean modelling 86, 58-75.
  • Stössel, A., Zhang, Z., and Vihma, T. 2011. The effect of alternative real-time wind forcing on Southern Ocean sea-ice simulations. J.Geophys.Res.116, C11021, doi:10.1029/2011JC007328.
  • Cheon, W.G., and Stössel, A. 2009. Oceanic response to interactive momentum flux over southern hemisphere sea ice. J.Geophys.Res.114, C12002, doi:10.1029/2008JC005068.
  • Stössel, A., Cheon, W.G., and Vihma, T. 2008. Interactive momentum-flux forcing over sea ice in a global ocean GCM. J.Geophys.Res. 113, C05010, doi:10.1029/2007JC004173.
  • Stössel, A. 2008. Employing satellite-derived sea-ice concentration to constrain upper-ocean temperature in a global ocean GCM. J.Climate 21(17), 4498-4513 (Corrigendum 2010: J.Climate 23(9), 2450-2451).
  • Stössel, A., Stössel, M.M. and Kim, J.-T. 2007. High-resolution sea ice in long-term global ocean GCM integrations. Ocean Modelling 16, 206-223.
  • Stössel, A. and Kim, J.-T. 2006. Enhancing the resolution of sea ice in a global ocean GCM. Ocean Modelling 11(1-2), 28-48.
  • Powell, D.C., Markus, T., and Stössel, A. 2005. Effects of snow depth forcing on Southern Ocean sea ice simulations. J.Geophys.Res.110, C06001, doi:10.1029/2003JC002212.
  • Haapala, J., Lönnroth, N., and Stössel, A. 2005. A numerical study of open water formation in sea ice. J.Geophys.Res.110, C09011, doi:10.1029/2003JC002200.
  • Stössel, A. and Markus, T. 2004. Using satellite-derived ice concentration to represent Antarctic coastal polynyas in ocean climate models. J.Geophys.Res.109, C02014, doi:10.1029/2003JC001779.
  • Stössel, A., Yang, K., and Kim, S.-J. 2002. On the role of sea ice and convection in a global ocean model. J.Phys.Oceanogr.32, 1194-1208.
  • Stössel, A. and Kim, S.-J. 2001. Decadal deep-water variability in the subtropical Atlantic and convection in the Weddell Sea. J.Geophys.Res.106(C10), 22,425-22,440.
  • Kim, S.-J. and Stössel, A. 2001. Impact of subgrid-scale convection on global thermohaline properties and circulation. J.Phys.Oceanogr.31(3), 656-674.

Additional Information


  • Associate Professor, Dept. of Oceanography, TAMU, since 2000
  • Assistant Professor, Dept. of Oceanography, TAMU, 1994-2000
  • Research Scientist, Max Planck Institute for Meteorology (MPI-M), 1990-1994
  • Graduate Research Assistant, MPI-M, 1986-1990
  • Visiting Scientist, MPI-M, 1998, 2000, 2004, 2011-2018 (16 months total)
  • Visitor, Los Alamos National Laboratory, NM, 2013-2018 (1 month total)
  • Visiting Scientist, Finnish Meteorological Institute, Helsinki, 2010, 2011, 2013 (2 month total)
  • Visiting Scientist, Universite Catholique de Louvain, Belgium, 1997, 1998, 2013 (1 month total)
  • Visiting Scientist, Finnish Institute of Marine Research, Helsinki, 1986, 2003, 2004, 2006, 2008 (5 months total)
  • Visiting Scientist, Dept. of Geophysics, University of Helsinki, 2000-2002 (3 months total)
  • Visiting Scientist, Royal Netherlands Meteorological Institute, De Bilt, 1999 (2 months)
  • Visiting Scientist, German Climate Computing Center, Hamburg, 1996, 1997 (4 months total)
  • Nautical Officer, German Merchant Marine, 1982-1986 (2 years total)
  • Deckhand/Cadet, German and Finnish Merchant Marine, 1975-1981 (2 years total)

Former and current students

  • Seong Joong Kim, Ph.D. in 1998; 0.5 year as postdoc
  • Kun Yang, Ph.D. student (2 years)
  • Joong Tae Kim, Ph.D. in 2007
  • Nadja Lönnroth, Ph.D. student (1 year)
  • Christina Stover, M.S. in 2006 (co-chair)
  • Woo Geun Cheon, Ph.D. in 2008
  • Who Myung Kim, Ph.D. in 2013 (co-chair)
  • Zhaoru Zhang, Ph.D. in 2013 (2 years)
  • Benjamin Morgan, M.S. in 2011 (co-chair)
  • Prajvala Kurtakoti, current Ph.D. student
  • Amanda Walker, B.S. in 2015
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