Marine Dynamics and Modelling

The Marine Dynamics and Modelling group is conducting physical oceanography research of ice covered seas. Our main focus area is the Baltic Sea, but we are increasingly contributing to the Arctic Ocean research. Research interests of the group include development of marine observational systems, understanding variability and changes of the physical environment in the Baltic and the Arctic Ocean, development of ice-ocean numerical models and development of operational oceanography modelling systems.

 

The climate studies have a strong focus on the Arctic Ocean. Aim is examine heat and freshwater content in the Arctic Ocean and the freshwater transports from the Arctic Ocean to the North Atlantic as well as with the ocean-ice-atmosphere heat fluxes. This research is based on analyses of field observations as well as with conceptual modelling.

A key topic for us is also to examine an impact of the climate change to the Baltic Sea and project changes in hydrography, water level and ice condition in future. In particular, we are interested in a changes in variability and extreme conditions.

For research and operational purposes we are using and developing several community ocean circulation models including MIT-GCM, NEMO and HBM. We develop also stand alone components for ocean models. The key numerical modelling areas are short term prediction model for the Baltic, methods for seasonal ensemble predictions for the Baltic and the Arctic and sea ice dynamics and thickness distribution model.
 

 

Publications

2011

Oikkonen, A., and J. Haapala, 2011. Variability and changes of Arctic sea ice draft distribution - submarine sonar measurements revisited. The Cryosphere, 5, 917-929, 2011

Marsan, D., Weiss, J., Metaxian, J.P., Grangeon, J., Roux, P.F. And J. Haapala 2011. Low frequency bursts of horizontally-polarized waves in the Arctic sea-ice cover: a signature of remote, regional-scale icequakes? J. of Glaciology, Vol. 57, 102, 2011

Haas, C., Le Goff, H., Audrain, S., Perovich, D. and J. Haapala, 2011. Local and floe‐scale seasonal thickness changes in the Transpolar Drift. Annals of Glaciology 52 (57):97-102.

Pärn, O. and Haapala, J. 2011. Occurrence of synoptic flaw leads of sea ice in the Gulf of Finland. Boreal Env. Res. 16:71-78

2010

Nicolaus M, Gerland S, Hudson S, Hanson S, Haapala J, Perovich D. 2010. Seasonality of spectral albedo and transmittance as observed in the Arctic Transpolar Drift in 2007 J. Geophys. Res., doi:10.1029/2009JC0060742010

Tedesco L, Vichi M, Haapala J, Stipa T. 2010. A dynamic Biologically Active Layer for numerical studies of the sea ice ecosystem Ocean Modelling Vol. 35 p. 89-104

Anderson LG, Tanhua T, Björk G, Hjalmarsson S, Jones EP, Jutterström S, Rudels B, Swift JH, Wåhlström I. 2010. Arctic Ocean shelf - basin interaction, an active continental shelf CO2 pump and its impact on the degree of calcium carbonate dissolution. Deep Sea Res. I, 57, 869-879, doi:10.1016/j.dsr.2010.03.012.2010

Björk G, Anderson LG, Jakobsson M, Antony D, Eriksson B, Eriksson P, Janzén T, Jutterström S, Linders J, Löwemark L, Marcussen C, Olsson KA, Rudels B, Sellén E, Sölvsten M. 2010. Flow of Canadian Basin Deep Water in the Western Eurasian Basin of the Arctic Ocean Deep Sea Res. I, 57, 577-586, doi:10.1016/j.dsr.2010.01.0062010

Fer, I., Voet G, Seim KS, Rudels B, Latarius K. 2010. Intense mixing of the Faroe Bank Channel Overflow Geophys. Res Letters, 37, L02604, doi:10.1029/2009GL041924.2010

Paka VT, Rudels B, Quadfasel D, Zhurbas VM. 2010. Measurements of turbulence in the Zone of strong bottom current in the Strait of Denmark Doklady Akademii Nauk, 432, 110-114.2010

Rudels B. 2010. Constraints on exchanges in the Arctic Mediterranean ? Do they exist and can they be of use? Tellus, 62A, 109-122.

Roiha P, Westerlund A, Nummelin A, Stipa T. 2010. Ensemble forecasting of harmful algal blooms in the Baltic Sea Journal of Marine Systems Volume 83, Issues 3-4, November 2010, Pages 210-220.

Ryabchenko, V., Dvornikov, A., Haapala, J. and K. Myrberg, 2010. Modelling ice conditions in the easternmost Gulf of Finland in the Baltic Sea. Continental Shelf Research, 30(13), 1458-1471. doi:10.1016/j.csr.2010.05.006.

Sankelo P, Haapala J, Heiler I, Rinne E. 2010. Melt pond formation and temporal evolution at drifting station Tara during summer 2007 Polar Research, no. doi:10.1111/j.1751-8369.2010.00161.x

2009

Rudels B, Kuzmina N, Schauer U, Stipa T, Zhurbas V. 2009. Double-diffusive convection and interleaving in the Arctic Ocean ? Distribution and importance Geophysica, 45, 199-213.

Tedesco L, Vinci M, Haapala J, Stipa T. 2009. An enhanced sea-ice thermodynamic model applied to the Baltic Sea. Boreal Env. Res. 14: 68-80.

Marnela M, Rudels B, Eriksson P. 2009. Finnish studies of physical Arctic oceanography Geophysica, 45(1-2), 147-162

Leisti H, Riska K, Heiler I, Eriksson P, Haapala J. 2009. A method for observing compression in sea ice fields using IceCam Cold Regions Science and Technology, Volume 59, Issue 1, October 2009, Pages 65-77.

Rudels B. 2009. Arctic Ocean Circulation Encyclopedia of Ocean Science 2nd. Ed, " Eds J. Steele, S. Thorpe and K. Turekian. Academic Press, 3471-3486.2009

Vihma, T. and J. Haapala. 2009. Geophysics of sea ice in the Baltic Sea - a review. Progress in Oceanography, 80, 129-148 , doi: 10.1016/ j.pocean.2009.02.002