Seasonal and interannual variability of the water exchange in the Turkish Straits System estimated by modelling

 
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Seasonal and interannual variability of the water exchange in the Turkish Straits System estimated by modelling (EN)

LEMESHKO, E.
MADERICH, V.
ILYIN, Y.

A chain of simple linked models is used to simulate the seasonal and interannual variability of the Turkish Straits System. This chain includes two-layer hydraulic models of the Bosphorus and Dardanelles straits simulating the exchange in terms of level and density difference along each strait, and a one-dimensional area averaged layered model of the Marmara Sea. The chain of models is complemented also by the similar layered model of the Black Sea proper and by a one-layer Azov Sea model with the Kerch Strait. This linked chain of models is used to study the seasonal and interannual variability of the system in the period 1970-2009. The salinity of the Black Sea water flowing into the Aegean Sea increases by approximately 1.7 times through entrainment from the lower layer. The flow entering into the lower layer of the Dardanelles Strait from the Aegean Sea is reduced by nearly 80% when it reaches the Black Sea. In the seasonal scale, a maximal transport in the upper layer and minimal transport in the bottom layer are during winter/spring for the Bosphorus and in spring for the Dardanelles Strait, whereas minimal transport in upper layer and maximal undercurrent are during the summer for the Bosphorus Strait and autumn for the Dardanelles Strait. The increase of freshwater flux into the Black Sea in interannual time scales (41 m3s-1 per year) is accompanied by a more than twofold growth of the Dardanelles outflow to the North Aegean (102 m3s-1 per year). (EN)

info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion

Turkish Straits System, Black Sea, Aegean Sea, Marmara Sea, water exchange, seasonal and interannual variability. (EN)

Ελληνικό Κέντρο Θαλασσίων Ερευνών (ΕΛΚΕΘΕ) (EL)
Hellenic Centre for Marine Research (HCMR) (EN)

Mediterranean Marine Science

2015-07-27


Hellenic Centre for Marine Research (EN)

1960-2009 (EN)
Mediterranean Sea, Black Sea, Marmara Sea (EN)

1791-6763
1108-393X
Mediterranean Marine Science; Vol 16, No 2 (2015); 444-459 (EL)
Mediterranean Marine Science; Vol 16, No 2 (2015); 444-459 (EN)



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