| Autor: |
Smith, R. O., Bryden, H. L., Stansfield, K. |
| Předmět: |
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| Zdroj: |
Ocean Science; 2008, Vol. 4 Issue 2, p133-149, 17p, 1 Chart, 16 Graphs, 2 Maps |
| Abstrakt: |
The deep convection that occurs in the western basin of the Mediterranean Sea was investigated using Argo float data over two consecutive winters in 2004-2005 and 2005-2006. The results showed deep mixed layers reaching 2000m in surprising locations, namely the eastern Catalan subbasin (39.785° N, 4.845° E) and the western Ligurian subbasin (43.392° N, 7.765° E). Subsequently, new deep water was formed in March of 2005 and 2006 with θ=12.89-12.92°C, S=38.48-38.49 and σθ =29.113 kgm-3. The deep water produced in the Ligurian subbasin during 2006 was more saline, warmer and denser than any historical observations of western Mediterranean deep water. The results show S, θ and σθ in the western Mediterranean deep water are higher than 1990s values, with a salinity increase of 1.5×10-3 yr-1, a temperature increase of 3.6×10-3 °C yr-1 and a density increase of 4.0×10-4 kgm-3 yr-1 apparent from a dataset of western Mediterranean deep water properties spanning 1955-2006. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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