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Sea level variations and their dependency on meteorological and hydrological forcing: Analysis of altimeter and surface data for the Black Sea ArchiMer
Stanev, Ev; Le Traon, Pierre-yves; Peneva, El.
TOPEX/Poseidon (TIP) altimeter data in the Black Sea are analyzed for almost 5 years in parallel with available hydrological and meteorological data with the aim of studying the water balance and the dependency of sea level oscillations on meteorological and hydrological forcing. This forcing induces seasonal variations of mean sea level with oscillations of similar to 10-15 cm. The consistency between satellite and tidal gauge data is demonstrated in several coastal locations, and a mean ascending trend of similar to 3 cm yr(-1) is found in the two data sets. The variability in all components of water balance, including the Bosphorus outflow calculated as the difference between the fresh water flux and the time rate of sea level change estimated from...
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Ano: 2000 URL: http://archimer.ifremer.fr/doc/00079/19034/16616.pdf
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On the assimilation of climatological data by means of numerical circulation models, exemplified for the mediterranean-sea ArchiMer
Stanev, Ev; Friedrich, Hj.
Based on Levitus' (1982) data set, a combination of robust diagonstic and fully prognostic techniques is used to evaluate for the Mediterranean Sea a climatology consistent with the physics of the GFDL-OGCM. Model experiments are carried out with 28 levels and with a horizontal resolution of DELTA-lambda = 1/3-degrees, DELTA-phi = 1/4-degrees. The model is forced mechanically by wind stress taken from Hellerman and Rosenstein's (1983) data. Sea surface temperature and salinity are prescribed from Levitus' (1982) data. Exchange flows in the Strait of Gibraltar are explicitly prescribed with 1.5 x 10(6) m3s-1. The focus is put on the analysis of initial and boundary conditions data. The dynamical effects of the exchange flows in the Strait of Gibraltar, as...
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Ano: 1991 URL: http://archimer.ifremer.fr/doc/00102/21371/18971.pdf
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Oceanic response to atmospheric forcing derived from different climatic data sets. Intercomparison study for the Black Sea ArchiMer
Staneva, Jv; Stanev, Ev.
Available climatic and atmospheric analysis data have been used to prepare forcing functions for the Black Sea numerical model, based on the Bryan-Semtner-Cox Modular Ocean Model and including parameterizations for the atmosphere-ocean exchange, inflow through the strait of Bosphorus and the Mediterranean plume. Atmospheric data from different sources are compared and the drawbacks of some of them illustrated. A new wind stress data set, based on ship observations, is prepared. Compared to the existing wind stress estimates, the present ones use additional data and more accurate parameterization of the boundary layer physics. The intercomparison between forcing data sets is focused on the heat flux and freshwater flux at the sea surface. The model...
Tipo: Text Palavras-chave: Mer Noire; Échange d'eau; Échange de chaleur; Tension du vent; Modélisation numérique; Black Sea; Water exchange; Heat exchange; Wind stress; Numerical modelling.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/00325/43664/43206.pdf
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On the seasonal response of intermediate and deep-water to surface forcing in the mediterranean-sea ArchiMer
Stanev, Ev; Friedrich, Hj; Botev, Sv.
Tipo: Text
Ano: 1989 URL: http://archimer.ifremer.fr/doc/00131/24225/22218.pdf
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