Director of the St. Petersburg branch of the IO RAS, Honored Scientist of the RF, DSc (Technical Sciences), Prof., Anatoliy Rodionov
Address: 1st Line 30,Vasilievsky Island, St. Petersburg, 199053, Russia

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Site of the St. Petersburg Branch of the IO RAS

Recent research achievements

Surface and internal tides in the Arctic Ocean have been modeled. The significance of the contribution of diapicnic mixing induced by internal tidal waves to the formation of the ocean climate has been proved.

It is shown that climate warming will lead to the expansion of anoxic and hypoxic zones. A reduction in nutrient load under the Baltic Sea Action Plan will only partially offset the negative effects of warming.
Alternative approaches to the theory of underwater vision are proposed. Methods for calculating the image contrast, signal-to-noise ratio, and detection and recognition ranges of underwater objects are proposed. The reality of the generation of turbulence in the field of potential waves has been proved: both theoretically and experimentally. The developed mechanism of the transition of wave energy into turbulence energy.

Laboratories of the St. Petersburg branch of the IO RAS

Children categories

Laboratory of geophysical boundary layers

Head: Dr. Alexey Zimin


The main areas of research:

Extreme (rogue) waves: statistics, mechanics and probabilistic forecast methods.
Investigation of nonlinear and short-period internal waves by contact and remote methods.
Coupled modelling of the atmospheric boundary layer and ocean wind waves.
Parametrization of ocean – atmosphere interaction for weather and climate models.
Geodynamic analysis of deep sedimentary basins.

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Laboratory for modeling ocean biogeochemical cycles

Head: Dr. Vladimir Ryabchenko


The main areas of research:

Modelling the variability of biogeochemical cycles including the carbon cycle in oceans and seas.
Modelling of distribution of pollutants in water bodies.
Climate change impact on marine ecosystems and the eutrophication of inland seas.
Basics of the operational system for forecasting the weather and the state of water bodies in the Northwestern region of Russia.

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Laboratory of ocean and atmospheric optics

Head: Dr. Maxim Rodionov

Images of an underwater test object in an experiment on a laboratory setup: undistorted (left), distorted by excitement, instantaneous (right) and reconstructed

The main direction of research:

Fundamental and applied investigations of the optical methods of World ocean study.
New directions of research. Within the framework of the main theme, it is planned to conduct full-scale experiments to study the spatial inhomogeneities of hydrooptical characteristics and record hydrophysical processes using the developed radiometric lidar.

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Laboratory of numerical experiments in ocean dynamics

Head: Dr. Dmitriy Romanenkov

Averaged (over a tidal period) integral (in depth) density of baroclinic tidal energy  in the Arctic Ocean

The main areas of research:

Modelling of the surface and internal tides in the Arctic Ocean.
Influence of the White Sea on tides in the adjacent seas of the North European Basin.
Role of the spatial inhomogeneity of the bottom hydrodynamical roughness on tidal dynamics and energetics in shallow adjacent seas.
Spectral method of construction and numerical solution of non-hydrostatic hydrodynamic models with an open boundary.
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