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Antarctic Oceanographycal Research
 First Ukrainian Antarctic station (UAS)
"Academik Vernadsky"
(65°15'S, 64°16'W). The UAS "Academik Vernadsky" (ex. "Faraday") is
the oldest operational station in the Antarctic Peninsula area.
Galindez island, where the station is located, is a small island
in the Argentine islands Archipelago. The nearest point on the
mainland coast is some 5 km distant.
Ukrainian Antarctic Centre organized two marine Antarctic
expeditions with R/V Ernst Krenkel in 1997-1998 and two ones with
R/V Horizont in 2000 and 2002. The main aims of the marine Antarctic
expeditions are to provide input of wintering personnel and
materials, as well as to carry out the on route scientific
researches. Natural marine ecosystems in Antarctica, a base of which
is krill, geologic structures, ocean bottom relief, gravity and
magnetic anomalies, water circulation, meteorological conditions and
sea ice distribution are studied.
Results
  Correlation
between hydrodynamic, hydrophysic and hydrochemistry processes,
their dependence on atmosphere processes changes and regional
conditions are studied during marina expeditions. Studying of the
hydrometeorology conditions on biology productive zones forming, the
structure and variability of oceanographic fields in Atlantic sector
of Antarctic, research of dynamic role and “iciness“ in resources
potential formation are provided.
Working out and
adaptation to regional conditions the models of hydrographic
processes and diagnostic methods of state and forecasting the
evolution of oceanographic fields, the methods of satellite
monitoring and drift technology; study the structure and dynamics of
water, ice variability; discovery of climate characteristics, ocean
field peculiarities that develop an biologic productivity and
business significance are fulfilled.
Establishment of
correlation in hydro-optic characteristics, biology, and hydrology
parameters, study of anthropogenic influences in the station region
on hydro-optic characteristics of adjacent water are fulfilled.
The complex of
experimental works in the fields of marina biology, oceanology,
hydro-chemistry, industrial and acoustic oceanography were proposed.
Most interesting directions of explorations are: krill, salpas,
zooplankton and other factor of environment in the zones of high
biological activity (the Patagonia shelf and shelf of the East Cost
of Argentina, Scotia Sea. The research topics are: estimation of
krill capacity in regions of industrial fishing, dynamics and
structure of waters in that regions, explorations of the fronts and
large-scale sea currents as factors of creation of the fields
increased biological activity, the investigation of typical season
changes of wind field over South-West Atlantic and correspondent
changes in circulation of the waters for different seasons,
investigation of acoustic properties of polar marina media.
more information
Publications
Large-scale peculiarities of the temperature and salinity
fields of the sea surface along the route of the Seventh Ukrainian
Antarctic Expedition (Yu. Artamonov , A .Perov, Ukrainian
Antarctic Journal, ¹1, 146-148 (2003), in Russian)
On the basis of the hydrological data received during the 7th
Ukrainian Antarctic Expedition in January-March, 2002, the
large-scale peculiarities of the temperature and salinity fields of
the sea surface in the Atlantic Ocean and Mediterranean sea are
described. Sea surface front peculiarities are discussed. Seasonal
changes of hydrological parameters in the tropical and middle
latitude of the Atlantic Ocean were determined.
Peculiarities of the hydrological and hydrochemical water
structure in the region of Argentine Islands in February- March 2002
(Yu. Artamonov, A. Romanov, Yu. Vnukov, P. Lomakin, A. Perov,
I. Stepura, Ukrainian Antarctic Journal, ¹1, 17-24 (2003), in
Russian)
The structure and variability of the thermohaline and hydrochemical
elements and the characteristics of the currents in the region of
Argentine Islands are analyzed on the basis of oceanographic
observations during the 7th Ukrainian Antarctic Expedition
(February-March 2002). The results of the 7th Ukrainian Antarctic
Expedition and the results of previous Ukrainian expeditions to
Antarctica are compared. It is shown that in summer season the ice
fields have an impact on the water structure and currents.
Results of the Oceanographycal Research at the Western
Bransfield Strait during March 2002 (Yu. Artamonov, A.
Romanov, Yu. Vnucov, A . Perov, I. Stepura, Ukrainian Antarctic
Journal, ¹1, 7-16, (2003), in Russian)
On the basis of hydrological and hydrochemical data received during
the Seventh Ukrainian Antarctic Expedition (7th UAE, March, 2002)
the circulation, water mass structure and spatial distribution at
the Western Bransfield Strait and in the lagoon of volcanic
Deception Island are obtained. Formation of the Weddell Front of the
surface and deep layers and its peculiarities are discussed.
Comparison of received data with the results of the previous
expeditions is made. Features of hydrological and separate variables
of hydrochemical structure of the Deception Island lagoon in the
beginning of autumn period are shown.
Surface thermal fronts in the Southern Atlantic and its
seasonal variability obtained on the basis of satellite data
(Yu. Artamonov, N. Bulgakov, P. Lomakin, E. Skripaleva, A.
Artamonov, S. Stanichny, Ukrainian Antarctic Journal, ¹ 2, 5-14,
(2004), in Russian)
The main features of seasonal variability of the large-scale sea
surface thermal fronts in the Southern Atlantic have been
investigated using the SST satellite data. The comparative analysis
of the specific features of the front manifestations in the western
and central regions in the meridional sections along 65°, 50°, 40°,
30° and 10°W were carried out. It was shown that the fronts
intensity decreases from west to east. In seasonal cycle of the
fronts variability the annual harmonics are predominated. The
semi-annual harmonics are found near the South America and in the
eastern part of the investigated region.
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