Direct measurements of western boundary currents off Brazil between 20°S and 28°S | Zendy

Müller Thomas J. | Zendy; Ikeda Yoshimine | Zendy; Zangenberg Norbert | Zendy; ato Luiz V. | Zendy

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Direct measurements of western boundary currents off Brazil between 20°S and 28°S

Author(s) -

Müller Thomas J.,

Ikeda Yoshimine,

Zangenberg Norbert,

ato Luiz V.

Publication year - 1998

Publication title -

journal of geophysical research: oceans

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.67

H-Index - 298

eISSN - 2156-2202

pISSN - 0148-0227

DOI - 10.1029/97jc03529

Subject(s) - hydrography , boundary current , current (fluid) , geology , oceanography , water mass , continental shelf , structural basin , boundary (topology) , deep water , hydrographic survey , climatology , ocean current , geomorphology , mathematical analysis , mathematics

Current measurements from three moored arrays on the Brazilian continental slope between 20°S and 28°S are investigated for the existence and strength of western boundary currents from near the surface down to the North Atlantic Deep Water. The Brazil Current is found to deepen southward from 100 m to more than 670 m and to strengthen its volume transport to 16.2 × 10 6 m 3 /s. Antarctic Intermediate Water is transported in a well‐developed boundary current southward at 28°S and northward north of Cabo Frio (24°S). This result supports earlier suggestions derived from the analysis of hydrographic data that Antarctic Intermediate Water enters the Brazil Basin from the east and bifurcates as it meets the continental break off Brazil. North Atlantic Deep Water is transported southward in a weakly developed boundary current that leads to lower estimates of volume transport than expected from earlier hydrographic data analysis.

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