A shallow core of Mediterranean water off western Portugal

Abstract From an analysis of several sets of hydrological data taken in the Gulf of Cadiz area and off the southern half of the western coast of Portugal, it was possible to identify and establish the continuity of a shallow vein of Mediterranean Water, distinct from the already well-established two main cores. Its thermohaline characteristics, in the form of temperature and salinity maxima in the vertical profiles, allowed its identification at density ( σ t ) levels between 27.25 and 27.45 with an equilibrium depth between 400 and 700 m and with a thickness of 50 to 100 m.