Temperature fluctuations and current shear in Antarctic Bottom Water at the Vema Sill

Progress in Oceanography

Volumn 77, Issue 4, 2008, Pages 276-284

  Zenk, Walter ^a  

^a GEOMAR HELMHOLTZ CENTRE FOR OCEAN RESEARCH KIEL   (Germany)

Author keywords

Antarctic Bottom Water; Argentine Basin; Richardson numbers; Rio Grande Rise; Vema Channel; Vema Sill

Indexed keywords

BOUNDARY LAYERS; DATA REDUCTION; THERMAL EFFECTS; THERMISTORS;

ANTARCTIC BOTTOM WATER; ARGENTINE BASIN; RICHARDSON NUMBERS; RIO GRANDE RISE; VEMA CHANNEL;

WATER ANALYSIS;

ANTARCTIC BOTTOM WATER; BENTHIC BOUNDARY LAYER; CIRCUMPOLAR CURRENT; CURRENT; RICHARDSON NUMBER; TEMPERATURE; VERTICAL MIXING;

ARGENTINE BASIN; ATLANTIC OCEAN; RIO GRANDE RISE; VEMA CHANNEL; VEMA SILL;

EID: 44749085510     PISSN: 00796611     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.pocean.2006.05.006     Document Type: Article

References (26)

1. Arhan M., Carton X., Piola A., and Zenk W. Deep lenses of circumpolar water in the Argentine Basin. J. Geophys. Res. 107 C1 (2002) 101029-101040
2. Canuto V.M., Howard A., Cheng Y., and Dubovikov M.S. Ocean turbulence. Part I: one-point closure model - momentum and heat vertical diffusivities. J. Phys. Oceanogr. 31 (2001) 1413-1426
3. De Madron X.D., and Weatherly G.L. Circulation, transport and bottom boundary layers of deep currents in the Brazil Basin. J. Mar. Res. 52 (1994) 583-638
4. Hall M.M., McCartney M., and Whitehead J.A. Antarctic Bottom Water flux in the equatorial western Atlantic. J. Phys. Oceanogr. 27 (1997) 1903-1926
5. Hogg N. Hydraulic control and flow separation in a multi-layered fluid with application to the Vema Channel. J. Phys. Oceanogr. 13 (1983) 695-708
6. Hogg N., and Zenk W. Long-period changes in the bottom water flowing through Vema Channel. J. Geophys. Res. 102 C7 (1997) 15639-15646
7. Hogg N., Biscaye P., Gardener W., and Schmitz W.J. On the transport and modification of Antarctic Bottom Water in the Vema Channel. J. Mar. Res. 40 suppl. (1982) 231-263
8. Hogg N., Owens W.B., Siedler G., and Zenk W. Circulation in the deep Brazil Basin. In: Wefer G., Berger W.H., Siedler G., and Webb D.J. (Eds). The South Atlantic, Present and Past Circulation (1996), Springer-Verlag, Berlin 249-260
9. Hogg N., Siedler G., and Zenk W. Circulation and variability at the southern boundary of the Brazil Basin. J. Phys. Oceanogr. 29 (1999) 145-157
10. Jungclaus J.H., and Vanicek M. Frictionally modified flow in a deep ocean channel: application to the Vema Channel. J. Geophys. Res. 104 C9 (1999) 21123-21136
11. Lukas R., Santiago-Mandujano F., Bingham F., and Mantyla A. Cold bottom water events observed in the Hawaii Ocean time-series: implications for vertical mixing. Deep-Sea Res. I 48 (2001) 995-1021
12. McDonagh E.L., Arhan M., and Heywood K.J. On the circulation of bottom water in the region of the Vema Channel. Deep-Sea Res. I 49 (2002) 1119-1139
13. Mercier H., and Speer K.G. Transport of bottom water in the Romanche Fracture Zone and the Chain Fracture Zone. J. Phys. Oceanogr. 28 5 (1998) 779-790
14. Pätzold, J. et al., 1999. Report and Preliminary Results of Meteor-Cruise 41/3, Vitória - Salvador, 18.4.-15.5.1998. Berichte, Fachbereich Geowissenschaften, Universität Bremen, 129, 160pp.
15. Polzin K.L., Speer K.G., Toole J.M., and Schmitt R.W. Intense mixing of Antarctic Bottom Water in the equatorial Atlantic Ocean. Nature 380 (1996) 54-57
16. Reid J.L., Nowlin W.D., and Patzert W.C. On the characteristics and circulation of the southwestern Atlantic Ocean. J. Phys. Oceanogr. 7 1 (1977) 62-91
17. Saunders P.M. The dense northern overflows. In: Siedler G., Church J., and Gould J. (Eds). Ocean Circulation and Climate (2001), Academic Press, San Diego 401-417
18. Saunders P.M., and Fofonoff N. Conversion of pressure to depth in the ocean. Deep-Sea Res. 23 (1976) 109-111
19. Schulz, H.D., Devey, C.W., Pätzold, J., Fischer, G., 1999. GEO Bremen/GPI Kiel South Atlantic 1998, Cruise 41, 13 February-13 June 1998. METEOR-Berichte, Universität Hamburg, 99-3, 341pp.
20. Smythe-Wright D., and Boswell S. Abyssal circulation in the Argentine Basin. J. Geophys. Res. 103 C8 (1998) 15845-15851
21. Speer K.G., and Zenk W. The flow of Antarctic Bottom Water into the Brazil Basin. J. Phys. Oceanogr. 23 (1993) 2667-2682
22. Thorpe S.A. On the shape and breaking of finite amplitude internal gravity waves in a shear flow. J. Fluid Dyn. 85 (1978) 7-31
23. Zenk W., and Hogg N.G. Warming trend in Antarctic Bottom Water flowing into the Brazil Basin. Deep-Sea Res. I 43 9 (1996) 1461-1473
24. Zenk W., Speer K.G., and Hogg N.G. Bathymetry at the Vema Sill. Deep-Sea Res. I 40 (1993) 1925-1933
25. Zenk W., Siedler G., Lenz B., and Hogg N.G. Antarctic Bottom Water Flow through the Hunter Channel. J. Phys. Oceanogr. 29 11 (1999) 2785-2801
26. Zenk W., Morozov E., Sokov A., and Müller T.J. Vema Channel: Antarctic Bottom Water temperatures continue to rise. CLIVAR Exchanges 8 1 (2003) 24-26