Large halocline variations in the Northern Baltic Proper and associated meso- and basin-scale processes

The Northern Baltic Proper is a splitting area of the Baltic Seasaline water route towards the two terminal basins - the Gulfof Finland and the Western Gotland Basin. Large halocline variations(vertical isopycnal displacements of more than 20 m, intra-haloclinecurrent speeds above 20 cm s<sup>...

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Main Authors: Jüri Elken, Pentti Mälkki, Pekka Alenius, Tapani Stipa
Format: Article
Language:English
Published: Institute of Oceanology of the Polish Academy of Sciences 2006-06-01
Series:Oceanologia
Subjects:
Online Access:http://www.iopan.gda.pl/oceanologia/48_S.html#A6
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author Jüri Elken
Pentti Mälkki
Pekka Alenius
Tapani Stipa
author_facet Jüri Elken
Pentti Mälkki
Pekka Alenius
Tapani Stipa
author_sort Jüri Elken
collection DOAJ
description The Northern Baltic Proper is a splitting area of the Baltic Seasaline water route towards the two terminal basins - the Gulfof Finland and the Western Gotland Basin. Large halocline variations(vertical isopycnal displacements of more than 20 m, intra-haloclinecurrent speeds above 20 cm s<sup>-1</sup> appear during and followingSW wind events, which rapidly increase the water storage in theGulf of Finland and reverse the standard estuarine transport,causing an outflow in the lower layers. In the channel of variabletopography, basin-scale barotropic flow pulses are convertedinto baroclinic mesoscale motions such as jet currents, sub-surfaceeddies and low-frequency waves. The associated dynamics is analysedby the results from a special mesoscale experiment, routine observationsand numerical modelling.
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spelling doaj.art-f80806a65fdc4e169d474052d84e624b2025-03-02T01:23:39ZengInstitute of Oceanology of the Polish Academy of SciencesOceanologia0078-32342006-06-0148S91117Large halocline variations in the Northern Baltic Proper and associated meso- and basin-scale processesJüri ElkenPentti MälkkiPekka AleniusTapani StipaThe Northern Baltic Proper is a splitting area of the Baltic Seasaline water route towards the two terminal basins - the Gulfof Finland and the Western Gotland Basin. Large halocline variations(vertical isopycnal displacements of more than 20 m, intra-haloclinecurrent speeds above 20 cm s<sup>-1</sup> appear during and followingSW wind events, which rapidly increase the water storage in theGulf of Finland and reverse the standard estuarine transport,causing an outflow in the lower layers. In the channel of variabletopography, basin-scale barotropic flow pulses are convertedinto baroclinic mesoscale motions such as jet currents, sub-surfaceeddies and low-frequency waves. The associated dynamics is analysedby the results from a special mesoscale experiment, routine observationsand numerical modelling.http://www.iopan.gda.pl/oceanologia/48_S.html#A6Baltic SeaGulf of FinlandHaloclineCurrentsMesoscale eddies
spellingShingle Jüri Elken
Pentti Mälkki
Pekka Alenius
Tapani Stipa
Large halocline variations in the Northern Baltic Proper and associated meso- and basin-scale processes
Oceanologia
Baltic Sea
Gulf of Finland
Halocline
Currents
Mesoscale eddies
title Large halocline variations in the Northern Baltic Proper and associated meso- and basin-scale processes
title_full Large halocline variations in the Northern Baltic Proper and associated meso- and basin-scale processes
title_fullStr Large halocline variations in the Northern Baltic Proper and associated meso- and basin-scale processes
title_full_unstemmed Large halocline variations in the Northern Baltic Proper and associated meso- and basin-scale processes
title_short Large halocline variations in the Northern Baltic Proper and associated meso- and basin-scale processes
title_sort large halocline variations in the northern baltic proper and associated meso and basin scale processes
topic Baltic Sea
Gulf of Finland
Halocline
Currents
Mesoscale eddies
url http://www.iopan.gda.pl/oceanologia/48_S.html#A6
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AT penttimalkki largehaloclinevariationsinthenorthernbalticproperandassociatedmesoandbasinscaleprocesses
AT pekkaalenius largehaloclinevariationsinthenorthernbalticproperandassociatedmesoandbasinscaleprocesses
AT tapanistipa largehaloclinevariationsinthenorthernbalticproperandassociatedmesoandbasinscaleprocesses