Skip to main content
European Commission logo print header
Contenido archivado el 2022-12-23

The Internal-Wave Field in the Arctic Ocean: Data Analysis, Physical and Numerical Modelling

Objetivo

The project unites the efforts of the two INTAS member institutions: The Netherlands Institute for Sea Research, the University of Oslo (Norway), and the Russian institutions: the Institute of Applied Physics of the Russian Academy of Sciences (Nizhny Novgorod), Shirshov Institute of Oceanology of the Russian Academy of Sciences (Moscow) and Arctic and Antarctic Research Institute (St.-Petersburg).
The main goal of the Project is to investigate theoretically, numerically and by means of field observations and laboratory experiments the fundamental properties of linear and non-linear internal waves in the Arctic seas.
Oceanic internal waves cause vertical mixing in the open ocean and determine the ocean stratification, circulation and short-term climate change. The understanding of these processes requires the consideration of energy transfer and redistribution in the ocean, which will be carried out within the project.
Different mechanisms of internal wave generation will be studied: tidal forcing over steep bottom topography, transformation of internal tides in the shelf zone, transformation of long internal waves within the sharp pycnocline or excitation of internal waves by drifting icebergs. The influence of internal waves on the parameters of solid ice-cover (both direct and by means of a cascade mechanism through the surface waves transformation) will be studied as well. Numerical modelling of the propagation of long non-linear internal waves in the typical Arctic conditions will result in compilation of the first Atlas of internal wave properties in the Arctic Ocean for different seasons.
The participants of the Project have gathered moored current and temperature measurement data. These data will be analysed to evaluate the energy of internal tides in the near zone of the sources and the energy losses of internal waves in the course of their propagation. We will investigate how the decay of tidal energy depends on the geometry of a topography source, the energy flux of barotropic tide, stratification, and bottom roughness along the way of wave propagation. Moored measurement will be combined with numerical modelling in order to develop a chart of internal wave amplitudes in the entire basin.
The proposal unites the teams that are internationally recognised team of the scientists, who have complementary skill, data, observation and laboratory systems as well as great theoretical experience. The joint efforts of these teams within the Project will result in obtaining new scientific results of internal wave physics, which will facilitate the analysis of data on the Arctic Ocean collected worldwide compiling the Atlas of wave parameters in different regions of the Arctic Ocean fruitful exchange of ideas in the field of internal wave dynamics.


Convocatoria de propuestas

Data not available

Régimen de financiación

Data not available

Coordinador

Netherlands Institute for Sea Research
Aportación de la UE
Sin datos
Dirección
P.O. Box 59
1790 AB Den Burg, Texel
Países Bajos

Ver en el mapa

Coste total
Sin datos

Participantes (4)