Lomonosov Current

The Lomonosov current (also called Lomonosov Under Current or Equatorial Under-Current) is a deep current in the Atlantic Ocean.

The Lomonosov current was discovered in 1959 during the 5th cruise^[1]^[2] of the research vessel Mikhail Lomonosov by an expedition of the Marine Hydrophysical Institute of the Ukrainian SSR Academy of Sciences, based in Sevastopol.^[3] Researchers onboard set four buoy stations containing current chart recorders at 30°W. One of them, that was set at the intersection of this meridian with the equator under the thin layer of the South Equatorial Current had recorded the strong current eastwards. Its average flow speed was 96 cm per second and maximal speed — 119 cm per second.^[1] It is named after Mikhail Lomonosov.

The Lomonosov current is 200 km wide, 150m thick and flows to the east. It starts near the coast of Brazil at some 5°N, crosses the equator and ends at some 5°S in the Gulf of Guinea. Its speed ranges from 60 to 130 cm per second, maximal speed being achieved at depths between 50 m and 125 m.^[4] Transport of the Lomonosov current ranges from 22.5 to 28.3 Sverdrup.^[5]

References

1 2 Kolesnikov, A.G. (1966). Techenie Lomonosova (in Russian). Kiev: Naukova dumka. p. 4. |access-date= requires |url= (help)
↑ "Cruises of the MHI's Research Vessels". Marine Hydrophysical Institute. Archived from the original on 2007-11-08. Retrieved 2008-04-21.
↑ Russian Marine Expeditionary Investigations of the World Ocean. International Ocean Atlas and Information Series. Silver Spring, MD: Diane Publishing Co. December 2002. p. 29. ISBN 1-4289-6114-3. Retrieved 2008-04-21.
↑ Gouriou, Y. "3.3.2. Subsurface Circulation". Resources, fishing and biology of the tropical tunas of the Eastern Central Atlantic. FAO. Retrieved 2008-04-21.
↑ D. Bonhoure; et al. "The South Equatorial Sys Current". Surface Currents in the Atlantic Ocean. CIMAS. Retrieved 2008-04-21.

Ocean currents and gyres

Currents

Arctic Ocean	East Greenland North Icelandic Norwegian Transpolar Drift Stream

Atlantic Ocean	Angola Antilles Azores Baffin Island Benguela Brazil Canary Cape Horn Caribbean East Greenland East Iceland Falkland Florida Guinea Gulf Stream Irminger Labrador Lomonosov Loop North Atlantic North Brazil North Equatorial Norwegian Portugal Slope Jet South Atlantic South Equatorial West Greenland West Spitsbergen

Indian Ocean	Agulhas Agulhas Return East Madagascar Equatorial Counter Indian Monsoon Indonesian Throughflow Leeuwin Madagascar Mozambique Somali South Australian South Equatorial West Australian

Pacific Ocean	Alaska Aleutian California Cromwell Davidson East Australian East Korea Warm Equatorial Counter Humboldt Indonesian Throughflow Kamchatka Kuroshio Mindanao North Equatorial North Korea Cold North Pacific Oyashio South Equatorial Tasman Front

Southern Ocean	Antarctic Circumpolar Tasman Outflow

Gyres

Major gyres	Indian Ocean Gyre North Atlantic Gyre South Atlantic Gyre North Pacific Gyre South Pacific Gyre

Other gyres	Beaufort Gyre Ross Gyre Weddell Gyre

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Lomonosov Current

See also

References