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Remote-sensing observations of coastal sub-mesoscale eddies in the south-eastern Baltic

Gurova E., Chubarenko B.

Oceanologia

2012

No. 54 (4)

631-654

This paper presents an overview of the sub-mesoscale eddies observed in the coastal zone of the south-eastern Baltic near the shores of the Sambian Peninsula and the Curonian Spit based on CODAR (high-frequency coast-based radar) measurements and analysis of MODIS and ASAR satellite images for the period 30 March 2000-31 December 2011. It was found that when winds are predominantly SW, S or W, a wake eddy of varying size (up to 25 km in diameter) forms off Cape Taran and can cover the area between the shoreline and the 65 m isobath. Its longest lifetime, observed using MODIS images, was 6 days. Another location where coastal sub-mesoscale eddies (up to 10-15 km in diameter) of varying form regularly appear is the coastal slope near the southern and central part of the Curonian Spit.

Hydrology and morphology of two river mouth regions (temperate Vistula Delta and subtropical Red River Delta)

Pruszak Z., Ninh P. V., Szmytkiewicz M., Hung N. M., Ostrowski R.

Oceanologia

2005

No. 47 (3)

365-385

The paper presents a comparative analysis of two different river mouths from two different geographical zones (subtropical and temperate climatic regions). One is the multi-branch and multi-spit mouth of the Red River on the Gulf of Tonkin (Vietnam), the other is the smaller delta of the river Vistula on a bay of the Baltic Sea (Poland). The analysis focuses on the similarities and differences in the hydrodynamics between these estuaries and the adjacent coastal zones, the features of sediment transport, and the long-term morphodynamics of the river outlets. Salinity and water level are also discussed, the latter also in the context of the anticipated global effect of accelerated sea level rise. The analysis shows that the climatic and environmental conditions associated with geographical zones give rise to fundamental differences in the generation and dynamic evolution of the river mouths.