The Black Sea general circulation and climatic temperature and salinity fields
MetadataShow full item record
The Black Sea is a nearly enclosed ocean basin, exhibiting many features common with larger ocean basins. Lacking an open boundary and having a limited exchange with sources of fresh and salt water, this basin is an ideal laboratory for developing and evaluating numerical circulation models. The present report describes one numerical model of the Black Sea, developed by Bulgarian and Russian scientists. The new approach has the advantages of both diagnostic models (incorporation of experimental data) and prognostic models (producing hydrodynamical adjustment and filtered fields). Successive application of diagnostic and prognostic models is used. The temperature and salinity fields obtained from observations, and currents obtained from diagnostic models, are used as the initial approximation to the prognostic model. Judicious selection of an integration time prevents over-smoothing of the results while preserving the stability of the solution. Using this model, caculations have been made at 25 levels over a grid interval of 0.25° (latitude) by 0.5°. Input data consist of nearly 50,000 observations taken over nearly 100 years, averaged over 0.5° by 0.5° cells. Seasonal fields of temperature, salinity, and velocity form the output of these experiments. The results provide the basis for various hypotheses that must be tested using future field observations and more sophisticated models.
Suggested CitationTechnical Report: Trukhchev, Dimitur Ivanov, Demin, Yurii Leonidovich, "The Black Sea general circulation and climatic temperature and salinity fields", 1992-09, DOI:10.1575/1912/856, https://hdl.handle.net/1912/856
Showing items related by title, author, creator and subject.
Jayne, Steven R. (American Meteorological Society, 2009-07)A parameterization of vertical diffusivity in ocean general circulation models has been implemented in the ocean model component of the Community Climate System Model (CCSM). The parameterization represents the dynamics ...
Chechelnitsky, Michael Y. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1999-06)Data assimilation methods, such as the Kalman filter, are routinely used in oceanography. The statistics of the model and measurement errors need to be specified a priori. In this study we address the problem of estimating ...
Tziperman, Eli (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1987-02)This thesis studies the role of cross-isopycnal mixing in general circulation dynamics, from both the theoretical and observational points of view. The first two chapters discuss some theoretical aspects of cross-isopycnal ...