Ocean science: Enhanced diapycnal mixing by salt fingers in the thermocline of the tropical atlantic

Science

Volumn 308, Issue 5722, 2005, Pages 685-688

  Schmitt, R W ^a   Ledwell, J R ^a   Montgomery, E T ^a   Polzin, K L ^a   Toole, J M ^a  

^a WOODS HOLE OCEANOGRAPHIC INSTITUTION   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CARBON DIOXIDE; DATA ACQUISITION; GEOGRAPHICAL REGIONS; HEAT LOSSES; MICROSTRUCTURE; SALTS; TEMPERATURE DISTRIBUTION; TRACE ANALYSIS; TROPICAL ENGINEERING; TURBULENCE;

DIAPYCNAL MIXING; MECHANICAL TURBULENCE; SALT FINGERS; WESTERN ATLANTIC STAIRCASE;

OCEANOGRAPHY;

CARBON DIOXIDE; SODIUM CHLORIDE; TRACER;

MIXING; SALINITY; THERMOCLINE;

ARTICLE; ATLANTIC ISLANDS; DIFFUSION; DISPERSION; HEAT; HEAT TRANSFER; PRIORITY JOURNAL; SEA; THERMOCLINE; TURBULENT FLOW;

ATLANTIC OCEAN; ATLANTIC OCEAN (TROPICAL); OCEANIC REGIONS; WORLD;

EID: 17844410650     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.1108678     Document Type: Article

References (37)

1. M. E. Stern, Tellus 12, 172 (1960).
2. R. B. Lambert, W. Sturges, Deep-Sea Res. 24, 211 (1977).
3. R. W. Schmitt, J. Phys. Oceanogr. 11, 1015 (1981).
4. B. Ruddick, J. Phys. Oceanogr. 22, 1274 (1992).
5. R. W. Schmitt, H. Perkins, J. D. Boyd, M. C. Stalcup, Deep-Sea Res. 34, 1697 (1987).
6. M. Tsuchiya, L. D. Talley, J. Geophys. Res. 103, 12,899 (1998).
7. A. P. S. Wong, G. C. Johnson, J. Phys. Oceanogr. 33, 1493 (2003).
8. J. R. Ledwell, A. J. Watson, C. S. Law, Nature 364, 701 (1993).
9. J. R. Ledwell, A. J. Watson, C. S. Law, J. Geophys. Res. 103, 21,499 (1998).
10. K. L. Polzin, J. M. Toole, J. R. Ledwell, R. W. Schmitt, Science 276, 93 (1997).
11. J. R. Ledwell, E. T. Montgomery, K. L. Polzin, R. W. Schmitt, J. M. Toole, Nature 403, 179 (2000).
12. J. D. Boyd, H. Perkins, Deep-Sea Res. 34, 337 (1987).
13. R. W. Schmitt, Annu. Rev. Fluid Mech. 26, 255 (1994).
14. R. W. Schmitt, J. M. Toole, R. L. Koehler, E. C. Mellinger, K. W. Doherty, J. Atmos. Ocean. Tech. 5, 484 (1988).
15. R. W. Schmitt, Deep-Sea Res. 26A, 23 (1979).
16. R. Lueck, Deep-Sea Res. 34, 1677 (1987).
17. G. Marmorino, W. K. Brown, W. D. Morris, Deep-Sea Res. 34, 1667 (1987).
18. A. E. Gargett, R. W. Schmitt, J. Geophys. Res. 87, 8017 (1982).
19. T. J. McDougall, Deep-Sea Res. 38, 367 (1991).
20. T. R. Osborn, J. Phys. Oceanogr. 10, 83 (1980).
21. T. Osborn, C. Cox, Geophys. Fluid Dyn. 3, 321 (1972).
22. T. J. McDougall, in Small-Scale Turbulence and Mixing in the Ocean, J. N. a. B. Jamart, Ed. (Elsevier Oceanography Ser., vol. 46, Elsevier, New York, 1988), pp. 21-36.
23. L. St. Laurent, R. W. Schmitt, J. Phys. Oceanogr. 29, 1404 (1999).
24. The 95% confidence limits for the diffusivities were calculated using a "bootstrap" method with the statistics of 1000 random subsamples of half of the 165 stations for each of the measured variables. This treats each station as independent but does not account for possible systematic errors in the flux ratio or flux Richardson number.
25. M. C. Gregg, T. Sanford, Deep-Sea Res. 34, 1689 (1987).
26. M. E. Stern, Deep-Sea Res. 14, 747 (1967).
27. J. M. Toole, D. T. Georgi, Prog. Oceanogr. 10, 123 (1981).
28. C. J. Garrett, J. Phys. Oceanogr. 12, 952 (1982).
29. W. J. Merryfield, J. Phys. Oceanogr. 30, 1046 (2000).
30. T. M. Joyce, J. Phys. Oceanogr. 7, 626 (1977).
31. R. Ferrari, K. Polzin, J. Phys. Oceanogr. (in press).
32. M. C. Gregg, J. Geophys. Res. 94, 9686 (1989).
33. K. Polzin, J. M. Toole, R. W. Schmitt, J. Phys. Oceanogr. 25, 306 (1995).
34. E. Kunze, in Double-Diffusive Convection, A. Brandt and J. Fernando, Ed. Geophys. Monogr. 94, 313 (1995).
35. R. W. Schmitt, in Small-Scale Turbulence and Mixing in the Ocean, J. N. a. B. Jamart, Ed. (Elsevier Oceanography Ser., vol. 46, Elsevier, New York, 1988), pp. 435-452.
36. W. J. Schmitz, J. R. Luyten, R. W. Schmitt, Bull. Mar. Sci. 53, 1048 (1993).
37. We wish to thank the captains and crews of the R/Vs Oceanus and Seward Johnson for consistently fine work throughout our cruises. We also thank D. Wellwood, T. Bolmer, T. Farrar, T. Donoghue, B. Guest, C. Sellers, S. Birdwhistell, S. Sutherland, A. deBoer, L. Houghton, S. Ledwell, A. Benitez, G. Hernandez, and R. Brathwaite for scientific assistance during the cruises. This work was supported by the National Science Foundation under grants OCE-0081502 and OCE-0350743. This is Contribution Number 11284 of the Woods Hole Oceanographic Institution.