Apr -- July: Blooms continue to develop into a Great Atlantic Sargassum Belt (extends northwestward by the North Brazil Current and North Equatorial Current
, and eastward to the West Africa coast by the North Equatorial Counter Current)
Scientists can use those measurements to understand with unprecedented resolution what happens to the equatorial current
system just west of the Galapagos Islands during an El Nino.
There it might catch the North Equatorial Current
The experiment studies the North Equatorial Current
, a westward flowing body of water east of the Philippines, which divides the Philippine current into the Kuroshio Current (northward) and the Mindanao Current (southward).
In the Pacific, warm waters along the South American coast are transported westward by the South Equatorial Current
. This allows the cold current and upwelling to produce the cold coastal waters.
(27.) Ships traversing the doldrums between the North and South Atlantic gyre had to contend with the influence of the Guinea Current, North Equatorial Current
, Equatorial Counter Current, South Equatorial Current
and Brazil Current.
In the Indian Ocean, anomalously northwesterly winds east of Madagascar in 2015 resulted in anomalous eastward flow (a diminished westward South Equatorial Current
), consistent with slightly low sea level and OHC anomalies east of Madagascar, coupled with much higher sea level and OHC anomalies to the north.
On the east side, nearly halfway across the Atlantic, is the southerly flowing Canary Current; and on its south side, about level with southern Florida, is the westerly flowing North Atlantic Equatorial Current
. All four currents deposit masses of sargassum seaweed, which covers much of the Sargasso Sea's surface.
There are particularly large differences in regions in the North Pacific centered on 10[degrees]N and 40[degrees]N, which are relevant to intensification of the North Equatorial Current
and reduction of the Kuroshio extension, as well as in some local regions around the Drake Passage and in the northern North Atlantic.
Adjacent waters at either side of the upwelling area show warm waters of ~29[degrees]C (yellow tones), which can be associated with the equatorial current
. These features are also evident when observing the average profile of SST, corresponding to transect for 'normal' winters 1996, 1998 and 1999 (Figure 3a), whereas that for winter 1997 was rather different.
Social anthropologists find it particularly fascinating as some of the island's original inhabitants came from Southeast Asia with the South Equatorial current
, which flows towards Africa during August and September.