Caribbean-Atlantic water exchange through the Anegada-Jungfern passage

Abstract

Measurements of the salinity, oxity, and silicate from hydrographic stations occupied at opposite ends of the Anegada‐Jungfern Passage have been plotted graphically against potential temperature θ. The water column has been divided into six layers on the basis of distinctive features in the θ‐S, θ‐O2, and θ‐silicate relationships. The differences and similarities between these features at opposite ends of the passage are correlated with geostrophic current computations to describe the current pattern through this passage. At about the 700‐m level the predominant current changes from a shallow flow into the Caribbean to a deeper outflow. In a layer 200 m thick immediately above sill depth (1815 m) the current alternates between inflow and outflow. The net transport through the passage is an inflow of roughly 1.4 Sv (1 Sv = 106 m3/s), mostly in the upper 400–500 m of the water column. The results are consistent with the distribution of water properties and, in the case of the deepest layers, with direct current measurements made at the same time.

Hydrographic and Biological Survey of a Surface‐Intensified Anticyclonic Eddy in the Caribbean Sea

“…Below the patches of SSW, an oxygen minimum indicated the presence of TACW ( Figure A1c). TACW originates in the tropical Atlantic Ocean and enters the Caribbean Sea through the southeastern passages ( Figure A2; Metcalf, 1976;Morrison & Nowlin, 1982). Although the origin of this oxygen depletion in this layer remains unclear, the mean current pattern suggest that TACW originates near Angola (Portela et al, 2018).…”

Contourite drift evolution and related coral growth in the eastern Gulf of Mexico and its gateways

“…2,000 m deep) (Sturges 1975;Metcalf 1976). Water masses like the Antarctic Intermediate Water (AAIW), coming from the south enter the Caribbean via the Antilles Passages.…”

Reconstructing marine productivity of the Cariaco Basin during marine isotope stages 3 and 4 using organic‐walled dinoflagellate cysts

“…Studies on paleoproductivity are therefore important because they place constraints on past ocean circulation, nutrient distribution and on the history of the oceanic carbon cycle. In spite of the significant role that the Caribbean Sea plays in the heat and mass transport from the tropics to higher latitudes [e.g., Gordon , 1967; Metcalf , 1976; Mooers and Maul , 1998; Schmidt et al , 2004], studies on late Quaternary paleoproductivity in this region are scarce [ J. I. Martinez et al , 2007; Kameo et al , 2004]. The Caribbean Sea is generally characterized by nutrient‐depleted surface waters.…”