Low-salinity plumes in the oceanic region of the Basque Country

Ferrer, L., Fontán, A., Mader, J., Chust, G., González, M., Valencia, V., Uriarte, Ad. and Collins, M.B. (2009) Low-salinity plumes in the oceanic region of the Basque Country Continental Shelf Research, 29, (8), pp. 970-984. (doi:10.1016/j.csr.2008.12.014).


Full text not available from this repository.


Low-salinity waters, within the upper layers of the water column, have been observed in the oceanic region of the southeastern limit of the Bay of Biscay (in March, 2007). This contribution assesses the potential role of large surface freshwater discharges from the Adour (France), Nervión, Oria, Deba, Urola, Urumea and Bidasoa (Basque Country) rivers, to explain the presence of these low-salinity waters. Such discharges, within the offshore waters, reached to at least 50 m in depth; likewise, extending over 15–20 km, in the horizontal. This pattern is confirmed by field data collected by offshore buoys, model results, and the analysis of satellite images. The presence of the low-salinity waters is corroborated by numerical simulations, performed by the ROMS (Regional Ocean Modeling System) hydrodynamic model, with the incorporation of river discharges. In order to simulate the freshwater movements and to identify their origin, particles were released at the river mouths and dispersed (by a Lagrangian particle-tracking model, LPTM), supplied by 3-hourly current fields derived from the ROMS model. The plumes of the Nervión, Oria, Urola and Urumea rivers appear to be the main factors contributing to the low-salinity field, at the offshore locations of the buoys. This pattern is related mainly to the prevailing oceano-meteorological conditions, over the period of analysis.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1016/j.csr.2008.12.014
ISSNs: 0278-4343 (print)
Keywords: Bay of Biscay, Low-salinity waters, Operational oceanography, River discharge
Subjects: G Geography. Anthropology. Recreation > GC Oceanography
ePrint ID: 66158
Date :
Date Event
30 April 2009Published
Date Deposited: 05 May 2009
Last Modified: 18 Apr 2017 21:43
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/66158

Actions (login required)

View Item View Item