By directly measuring the current, determining the transport of bottom water from the Antarctic through the Romanche and Chain fracture zones, in the Equatorial Atlantic. Documenting temporal fluctuations in transport.
-27 stations for hydrology and geochemistry. -Deployment of 8 current meter moorings. -Analyses of salinity, concentrations of dissolved oxygen, in CFM 11 and 12 of samples taken during CTD stations (32 samples per station). -XBT Sippican measurements. -Shipboard Doppler acoustic current meter. -Surveys by EM12D multibeam echosounder.
Location map
Positionning system
Geodetic system : WORLD GEODETIC SYSTEM 1984 = WGS84
Thierry Virginie, Mercier Herle, Treguier Anne-Marie (2006). Seasonal fluctuations in the deep central equatorial Atlantic Ocean: a data-model comparison. Ocean Dynamics, 56(5-6), 581-593. https://doi.org/10.1007/s10236-005-0045-y
Ferron Bruno, Treguier Anne-Marie, Mercier Herle (2004). Modelling of the bottom water flow through the Romanche Fracture Zone with a primitive equation model - Part 2: Comparison of vertical mixing parameterisations with observations. Ocean Modelling, 6(2), 177-190. https://doi.org/10.1016/S1463-5003(03)00024-6
Messias Mj, Andrie C, Memery Laurent, Mercier Herle (1999). Tracing the North Atlantic Deep Water through the Romanche and Chain fracture zones with chlorofluoromethanes. Deep-sea Research Part I-oceanographic Research Papers, 46(7), 1247-1278. https://doi.org/10.1016/S0967-0637(99)00005-9
Andrie C, Ternon Jf, Messias Mj, Memery Laurent, Bourles B (1998). Chlorofluoromethane distributions in the deep equatorial Atlantic during January-March 1993. Deep-sea Research Part I-oceanographic Research Papers, 45(6), 903-930. https://doi.org/10.1016/S0967-0637(98)00003-X
