A whirling ecosystem in the equatorial Atlantic
نویسندگان
چکیده
منابع مشابه
Distribution and activity of diazotrophs in the Eastern Equatorial Atlantic
The gene abundance and gene expression of six diazotroph populations from the Eastern Equatorial Atlantic in June 2007 were examined using nifH gene quantitative polymerase chain reaction (q PCR) methods. Of all the diazotrophs, Trichodesmium spp. was the most abundant with the highest number of gene copies in the Gulf of Guinea. Trichodesmium also had the highest nitrogenase gene transcript ab...
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[1] Equatorial zonal currents and associated oxygen distributions are studied using shipboard hydrographic data, trajectories from isopycnic floats drifting at about 300 m depth, and velocity time series from the upper 1100 m obtained at two equatorial moorings located at 35 W and 23 W. Mean profiles of zonal velocity measured by moored acoustic Doppler current profilers yielded a westward flow...
متن کاملSurface drifter pathways originating in the equatorial Atlantic cold tongue
[1] Subtropical cells (STCs) connect subduction zones of the eastern subtropics of both hemispheres to the equatorial current systems via equatorward flow in the thermocline. Some of this thermocline water is converted back into warm near-surface water in the eastern equatorial cold tongue from whence it is exported poleward. Here we examine the export pathways from the cold tongue in the Atlan...
متن کاملSeasonal cycle in the upper equatorial Atlantic Ocean
[1] The dynamics of the seasonal cycle in the upper equatorial Atlantic ocean are studied using observations and a hierarchy of ocean models. Distinctive features of the seasonal cycle are strong annual and semiannual components: eastward (westward) propagating sea surface height (SSH) and thermocline depth at the equator (off the equator) and westward propagating surface zonal currents at the ...
متن کاملHalocarbon emissions and sources in the equatorial Atlantic Cold Tongue
Introduction Conclusions References
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2002
ISSN: 0094-8276
DOI: 10.1029/2001gl014576