Trends in Atlantic equatorial current variability | Zendy

William J. Emery | Zendy; Walter Zenk | Zendy; K. F. Huber | Zendy; Pierre Rual | Zendy; Paul Nowlan | Zendy

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Trends in Atlantic equatorial current variability

Author(s) -

William J. Emery,

Walter Zenk,

K. F. Huber,

Pierre Rual,

Paul Nowlan

Publication year - 1987

Publication title -

deutsche hydrographische zeitschrift

Language(s) - English

Resource type - Journals

ISSN - 0012-0308

DOI - 10.1007/bf02226280

Subject(s) - bathythermograph , geostrophic wind , geostrophic current , current (fluid) , equator , dynamic height , series (stratigraphy) , geology , temperature salinity diagrams , ocean current , sea surface height , climatology , geodesy , altimeter , oceanography , latitude , salinity , hydrography , paleontology

Approximately twice-monthly expendable bathythermograph (XBT) sections between Europe and Brazil, are used to characterize trends in the equatorial geostrophic surface currents orthogonal to the sections between September, 1980 and May, 1984. Using mean temperature-salinity relationships the upper layer temperature profiles are converted to density and used to compute 0/300 db dynamic height. Applying a second derivative method, at and near the equator, geostrophic surface currents are computed along each quasimeridional XBT section and time/space series of the equatorial currents are developed using spline interpolations in both time and space. Equatorial currents are mapped as time series of dynamic height and geostrophic current

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