Ukrainian Antarctic journal

No 14 (2015): Ukrainian Antarctic Journal
Articles

Structure of water masses in the archipelago Argentine Islands

I. P. Neverovsky
Hydrometeorological Center of the Black Sea and Sea of Azov, 65009, Ukraine, Odesa, 89 Frantsuzsky Blvd.
Y. I. Popov
Ukrainian Scientific Center of Ecology of the Sea, 65009, Ukraine, Odesa, 89 Frantsuzsky Blvd.
V. N Sytov
Hydrometeorological Center of the Black Sea and Sea of Azov, 65009, Ukraine, Odesa, 89 Frantsuzsky Blvd.
A. S. Matygin
Hydrometeorological Center of the Black Sea and Sea of Azov, 65009, Ukraine, Odesa, 89 Frantsuzsky Blvd.
Published January 12, 2016
Keywords
  • water masses,
  • thermohaline structure,
  • monitoring,
  • Antarctic Peninsula

Abstract

The structure of the water masses in the region of the archipelago Argentine islands was investigated ac­cording to the data oceanographic survey. The survey consisted of 60 stations of inter-island zone archipelago and three orthogonal cuts (10-12 stations) in the deep Straits of Penola. The two-layer vertical structure with desalinated water and warm surface layer and salty and cold water of bottom layer was observed in the area of inter-island. The thermocline is located at depths of 20-30 m in the northern and southern parts of the island area. The thermocline is located at a depth of 30-40 m in a more shallow central part of the island area, because there existed favorable condi­tions for spring-summer warming. Analysis of form T, S-curves allows to conclude that the monitoring space-time structure of the thermohaline field interisland the waters area enough make in a single point. The outlet glaciers of the Antarctic Peninsula in the summer generate large volumes of meltwater and create conditions for the formation of a three-layer structure of water. Cold intermediate layer separates relatively warm and more salty deep-water from warmed and freshened in summer conditions of surface waters. Analysis of T, S-diagrams of water of different regions of the western shelf of the Antarctic Peninsula led to the conclusion of a transfer of intermediate and deep waters from the south.