Variability of mesozooplankton spatial distribution in the North Aegean Sea, as influenced by the Black Sea waters outflow

Satellite data from the SeaWiFS sensor has been used to determine chlorophyll-a contents in the North Aegean Sea using SEADAS 3.3 software. The data is used to extract knowledge on water movements/flow phenomena using chlorophyll as a “tracer” but will also indicate water quality. More than 100 SeaWiFS scenes from 1998 up to 2001 have been analyzed in terms of hydrodynamic phenomena, mainly the transport and spreading pattern of Black Sea Water in the North Aegean Sea but also concerning the water quality and its seasonal and yearly variation at the mouth region of the Dardanelles. Some comparison with earlier studies using NOAA AVHRR thermal data and historical CZCS scenes is also made.

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INTER-annual/decadal variability of the north Aegean Sea hydrodynamics over 1960-2000

Mediterranean Marine Science ◽

10.12681/mms.852 ◽

2014 ◽

Vol 15 (4) ◽

pp. 696 ◽

Cited By ~ 1

Author(s):

V. VERVATIS ◽

N. SKLIRIS ◽

S. S. SOFIANOS

Keyword(s):

Decadal Variability ◽

Sea Water ◽

Salt Content ◽

Aegean Sea ◽

The Black Sea ◽

Minor Role ◽

Freshwater Flux ◽

The North ◽

North Aegean ◽

North Aegean Sea

Results from a high-resolution hindcast model experiment, supported by available observations, reveal an increasing salinity trend in the north Aegean during the Eastern Mediterranean Transient (EMT), largely controlled by increases in the flow rate and salinity of water masses of Levantine origin entering the domain through the Myconos-Ikaria strait as a response to an acceleration of the Aegean thermohaline cell. Changes in the Dardanelles inflow (increasing salinity) and in the surface freshwater flux (increasing Evaporation-Precipitation), although both contribute to a higher salt content of the basin during the EMT, play a minor role in the inter-annual/decadal variability of the freshwater budget. A long-term decreasing temperature trend is observed from the 1960s to the early 1990s. It is superimposed on the salinity-preconditioning phase over the 1980s and early 1990s. Both signals are, concomitantly, favouring conditions for intense Dense Water Formation (DWF) in the north Aegean Sea. In addition, the northward displacement of the Black Sea Water front over the EMT, leads to the expansion of convective cells towards the north and to higher formation rates associated with both colder and saltier surface waters.

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Modelling the impact of Black Sea water inflow on the North Aegean Sea hydrodynamics

Ocean Dynamics ◽

10.1007/s10236-010-0277-3 ◽

2010 ◽

Vol 60 (3) ◽

pp. 585-596 ◽

Cited By ~ 19

Author(s):

Margarita Tzali ◽

Sarantis Sofianos ◽

Anneta Mantziafou ◽

Nikolaos Skliris

Keyword(s):

Black Sea ◽

Sea Water ◽

Aegean Sea ◽

Water Inflow ◽

The North ◽

North Aegean ◽

North Aegean Sea ◽

The Impact

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The influence of Black Sea Water inflow and its synoptic time-scale variability in the North Aegean Sea hydrodynamics

Ocean Dynamics ◽

10.1007/s10236-016-0923-5 ◽

2016 ◽

Vol 66 (2) ◽

pp. 195-206 ◽

Cited By ~ 6

Author(s):

Apostolia-Maria Mavropoulou ◽

Anneta Mantziafou ◽

Ewa Jarosz ◽

Sarantis Sofianos

Keyword(s):

Black Sea ◽

Time Scale ◽

Sea Water ◽

Aegean Sea ◽

Water Inflow ◽

The North ◽

North Aegean ◽

North Aegean Sea

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Circulation and hydrological characteristics of the North Aegean Sea: a contribution from real-time buoy measurements

Mediterranean Marine Science ◽

10.12681/mms.255 ◽

2002 ◽

Vol 3 (1) ◽

pp. 21 ◽

Cited By ~ 20

Author(s):

K. NITTIS ◽

L. PERIVOLIOTIS

Keyword(s):

General Circulation ◽

Sea Water ◽

Aegean Sea ◽

The Black Sea ◽

Hydrological Characteristics ◽

The North ◽

Open Sea ◽

North Aegean ◽

North Aegean Sea ◽

Water Outflow

In the framework of the POSEIDON Project, a network of open sea oceanographic buoys equipped with meteorological and oceanographic sensors has been operational in the Aegean Sea since 1998. The analysis of upper-ocean physical data (currents at 3m, temperature and salinity at 3-40m depths) collected during the last 2 years from the stations of the North Aegean basin indicates a strong temporal variability of flow field and hydrological characteristics in both synoptic and seasonal time scales. The northern part of the basin is mainly influenced by the Black Sea Water outflow and the mesoscale variability of the corresponding thermohaline fronts, while the southern stations are influenced by the general circulation of the Aegean Sea with strong modulations caused by the seasonally varying atmospheric forcing.

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