Tracking the formation of the gradient part of the southeastern Baltic Sea cold intermediate layer  id статьи: 682
Тип публикации
статья в журнале
Журнал
Russian Journal of Earth Sciences
ISSN:1681-1208
Выходные данные
том
20
выпуск
3
страницы
ES3005
Абстракт
In order to study the peculiarities of the thermohaline structure of the Baltic Sea, we conducted a research based on the Copernicus Marine Environment Monitoring service (https://marine.copernicus.eu/) products and field data
collected in 2004-2006. The study of the reanalysed Baltic Sea hydrography allows us to show that it adequately reproduces elements of the thermohaline structure of the cold intermediate layer obtained from the measurement data.
Here we examine the hypothesis about the formation of a lower part of the cold intermediate layer in early spring under the influence of a mechanism related to the estuary salinity/density gradient along the main axis of the
Baltic Sea. Several numerical experiments were carried out to analyse the back trajectories of Lagrangian particles in the southeastern Baltic Sea. The analysis showed that in the Gdansk Basin, at the depth corresponding to the
lower part of the cold intermediate layer, there are particles coming from the Bornholm Basin and the Slupsk Channel. This confirms the contribution of the estuary salinity gradient to the formation of the lower part of the cold
intermediate layer.
Ключевые слова
COLD INTERMEDIATE LAYER, VERTICAL STRATIFICATION, BASIN-SCALE EXCHANGE, THERMOHALINE STRUCTURE, THE BALTIC SEA, LAGRANGIAN TRANSPORT
Дата занесения
2020-08-05 15:53:09