Reconstruction of the space and time variability of thermohaline fields in the Sevastopol Bay |
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| Authors: | É N Mikhailova N B Shapiro |
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| Institution: | (1) Marine Hydrophysical Institute, Ukrainian Academy of Sciences, Sevastopol, Ukraine |
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| Abstract: | The aim of the present work is to reconstruct the space and time variability of the three-dimensional fields of currents,
temperature, salinity, and density in the Sevastopol Bay under the influence of the actual external factors in 1999. For this
purpose, we use a version of the numerical multilayer model on the σ-coordinates. A vast array of the data of observations
accumulated as a result of regular monitoring of the Sevastopol Bay contains, in particular, the data on the sea-surface temperature
measured with six-hour intervals (at the hydrometeorological station located near the center of the bay) and almost monthly
vertical profiles of temperature and salinity obtained at seven hydrological stations. The comparison of the numerical results
with the data of observations enables us to conclude that, in general, the model fairly correctly describes the space structure
and rearrangements of the fields of temperature and salinity. Among the most important distinctions, we can mention the fact
that the fresh river water penetrating into the bay is mixed with seawater faster than predicted by the model. We also discuss
the causes of these distinctions.
Translated from Morskoi Gidrofizicheskii Zhurnal, No. 5, pp. 23–39, September–October, 2008. |
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