Oceano-meteorological conditions and coupling in the southeastern Bay of Biscay, for the period 2001–2005: A comparison with the past two decades

摘要: Abstract This contribution describes oceano-meteorological conditions, investigating their coupling, within the southeastern part of Bay Biscay. The study focuses upon: (i) simple relationships between atmospheric temperature and sea surface (SST); (ii) complex relationships, such as heat salt content associated with precipitation–evaporation balance river flow; (iii) dynamic aspects (Ekman transport, upwelling–downwelling turbulence winter mixed layer depth), related to wind speed direction. Some seasons first five-year period 21st century have been defined “extreme” (warm summer in 2003; cold long 2005; very dry spring etc.). present confirms presence frequent seasonal anomalies; they appear indicate a “deseasonalisation”, relation classical cycle Atlantic climatic regime, at mid-latitudes. term means that winter–summer duality prevails against establishment (in terms values mean duration), autumn transitional seasons. In contrast, time-series is characterised by its relatively scarce anomalies, annual values. addition, significant coupling meteorological oceanographic conditions observed over area, confirming forcing drives, great extent, surface; water column properties, lesser degree.