Annual cycle and variability of the North Brazil current

Journal of Physical Oceanography

Volumn 28, Issue 1, 1998, Pages 103-128

  Johns, W E ^a   Lee, T N ^a   Beardsley, R C ^b   Candela, J ^b   Limeburner, R ^b   Castro, B ^c  

^a UNIVERSITY OF MIAMI   (United States)

^b WOODS HOLE OCEANOGRAPHIC INSTITUTION   (United States)

^c UNIVERSITY OF SÃO PAULO   (Brazil)

Author keywords

[No Author keywords available]

Indexed keywords

CURRENTS; NORTH BRAZIL CURRENT; SEASONAL CYCLE; TRANSPORT PROCESSES; UPPER OCEAN; WIND FORCING;

ATLANTIC, (TROPICAL);

EID: 0031971926     PISSN: 00223670     EISSN: None     Source Type: Journal    
DOI: 10.1175/1520-0485(1998)028<0103:ACAVOT>2.0.CO;2     Document Type: Article

References (66)

1. Akima, H., 1970: A new method of interpolation and smooth curve fitting based on local procedures. J. Assoc. Comput. Mach., 17, 589-602.
2. Alessi, C. A., S. L. Lentz, R. C. Beardsley, and B. M. Castro, 1992: A Multidisciplinary Amazon Shelf SEDiment Study (AMASSEDS): Physical Oceanography Moored Array Component. Tech Rep. 92-36, 87 pp., [Available from Woods Hole Oceanographic Institute, Woods Hole, MA 02543.]
3. Anderson, D. L. T., and P. B. Rowlands, 1976: The Somali Current response to the southwest monsoon: The relative importance of local and remote forcing. J. Mar. Res., 34, 395-417.
4. _, and R. A. Corry, 1985: Seasonal transport variations in the Florida Straits: A model study. J. Phys. Oceanogr., 15, 773-786.
5. 2 tide on the Amazon Shelf. J. Geophys. Res., 100, 2283-2319.
6. Boning, C. W., R. Döscher, and H. J. Isemer, 1991: Monthly mean wind stress and Sverdrup transports in the North Atlantic: A comparison of the Hellerman-Rosenstein and Isemer-Hasse climatologies. J. Phys. Oceanogr., 21, 221-235.
7. Brown, W. S., W. E. Johns, K. D. Leaman, J. P. McCreary, R. L. Molinari, P. L. Richardson, and C. Rooth, 1992: A Western Tropical Atlantic Experiment(WESTRAX). Oceanography, 5(1), 73-77.
8. Brace, J. G., J. L. Kerling, and W. H. Beatty III, 1985: On the North Brazil eddy field. Progress in Oceanography, Vol. 14, Pergamon, 57-63.
9. Candela, J., R. C. Beardsley, and R. Limeburner, 1992: Separation of tidal and subtidal currents in ship-mounted acoustic Doppler current profiler (ADCP) observations. J. Geophys. Res., 97(C1), 769-788.
10. Carton, J. A., 1992: Tropical Atlantic Ocean eddies collide with the coast of South America (abstract). Eos Trans. Amer. Geophys. Union, 73(51), (Ocean Sciences Meeting Suppl.), 22.
11. Cochrane, J. D., F. J. Kelly, and C. R. Oiling, 1979: Subthermocline countercurrents in the western equatorial Atlantic Ocean. J. Phys. Oceanogr., 9, 724-738.
12. Colin, C., B. Bourles, R. Chuchla, and F. Dangu, 1994: Western boundary current variability off French Guiana as observed from moored current measurements. Oceanol. Acta, 17, 345-354.
13. Csanady, G. T., 1985: A zero potential vorticity model of the North Brazilian Coastal Current. J. Mar. Res., 43, 553-579.
14. Didden, N., and F. Schott, 1993: Eddies in the North Brazil Current retroflection region observed by Geosat altimetry. J. Geophys. Res., 98, 20121-20131.
15. Düing, W., and F. Schott, 1978: Measurements in the source region of the Somali Current during the monsoon reversal. J. Phys. Oceanogr., 8, 278-289.
16. Fine, R. A., and R. L. Molinari, 1988: A continuous deep western boundary current between Abaco (26.5°N) and Barbados (13°N). Deep-Sea Res., 35(9), 141-1450.
17. Flagg, C. N., R. L. Gordon, and S. McDowell, 1986: Hydrographic and current observations on the continental slope and shelf of the western equatorial Atlantic. J. Phys. Oceanogr., 16, 1412-1429.
18. Fratantoni, D. M., W. E. Johns, and T. L. Townsend, 1995: Rings of the North Brazil Current: Their structure and behavior inferred from observations and a numerical simulation. J. Geophys. Res., 100(C6), 10633-10654.
19. Geyer, W. R., R. C. Beardsley, S. J. Lentz, J. Candela, R. Limeburner, W. E. Johns, B. M. Castro, and I. D. Soares, 1996: Physical oceanography of the Amazon Shelf. Contin. Shelf Res., 16(5/6), 575-616.
20. Gordon, A. L., 1986: Interocean exchange of thermocline water. J. Geophys. Res., 91, 5037-5046.
21. _, R. F. Weiss, W. M. Smethie Jr., and M. J. Warner, 1992: Thermocline and intermediate water communication between the South Atlantic and Indian Oceans. J. Geophys. Res., 97, 7223-7240.
22. Greatbatch, R. J., and A. Goulding, 1989: Seasonal variations in a linear barotropic model of the North Atlantic driven by the Hellerman and Rosenstein wind stress field. J. Phys Oceanogr., 19, 572-595.
23. Hellerman, S., and M. Rosenstein, 1983: Normal monthly wind stress over the world ocean with error estimates. J. Phys. Oceanogr., 13, 1093-1104.
24. Hurlburt, H. E., and J. D. Thompson, 1976: A numerical model of the Somali Current. J. Phys. Oceanogr., 6, 646-664.
25. Johns, W. E., 1988: Near-surface current measurements in the Gulf Stream using an upward-looking acoustic Doppler current profiler. J. Atmos. Oceanic Technol., 5, 602-613.
26. _, T. N. Lee, F. A. Schott, R. J. Zantopp, and R. H. Evans, 1990: The North Brazil Current retroflection: Seasonal structure and eddy variability. J. Geophys. Res., 95(C12), 22 103-22 120.
27. _, D. M. Fratantoni, and R. J. Zantopp, 1993: Deep western boundary current variability off northeastern Brazil. Deep-Sea Res., 40, 293-310.
28. Katz, E., 1993: An interannual study of the North Equatorial Countercurrent. J. Phys. Oceanogr., 23, 116-123.
29. Lee, T. N., W. E. Johns, R. J. Zantopp, and E. Fillenbaum, 1996: Moored observations of volume transport and variability in western boundary currents of the subtropical North Atlantic at 26.5°N. J. Phys. Oceanogr., 26, 446-466.
30. Lentz, S. J., 1995a: The Amazon River plume during AmasSeds: Subtidal current variability and the importance of wind forcing. J. Geophys. Res., 100, 2377-2390.
31. _, 1995b: Seasonal variations in the Amazon plume structure inferred from historical hydrographie data. J. Geophys. Res., 100, 2391-2400.
32. _, and R. Limeburner, 1995: The Amazon River plume during AmasSeds: Spatial characteristics and salinity variability. J. Geophys. Res., 100, 2355-2375.
33. Lighthill, M. J., 1969: Dynamic response of the Indian Ocean to the onset of the southwest monsoon. Philos. Trans. Roy. Soc. London, A265, 45-92.
34. Limeburner, R., R. C. Beardsley, I. Soares, S. Lentz, and J. Candela, 1995: Lagrangian flow observations of the Amazon River discharge into the North Atlantic. J. Geophys. Res., 100(C2), 2401-2415.
35. Lukas, R., E. Firing, P. Hacker, P. L. Richardson, C. A. Collins, R. Fine, and R. Gammon, 1991: Observations of the Mindanao Current during the western equatorial Pacific Ocean circulation study. J. Geophys Res., 96(C4), 7089-7104.
36. Mayer, D. A., and R. H. Weisberg, 1993: A description of COADS surface meteorological fields and the implied Sverdrup transports for the Atlantic Ocean from 30°S to 60°N. J. Phys. Oceanogr., 23, 2201-2221.
37. McCartney, M. S., 1993: Crossing of the equator by the deep western boundary current in the western Atlantic Ocean. J. Phys. Oceanog., 23, 1953-1974.
38. McClean, J. L., and J. M. Klinck, 1995: Description and vorticity analysis of 50-day oscillations in the western tropical region of the CME Model. J. Phys. Oceanogr., 25, 2498-2517.
39. Metcalf, W., and M. Stalcup, 1967: Origin of the Atlantic Equatorial Undercurrent. J. Geophys. Res., 72, 4959-4975.
40. Molinari, R. L., and E. Johns, 1994: Upper layer temperature structure of the western tropical Atlantic. J. Geophys. Res., 99(C9), 18225-18233.
41. _, R. A. Fine, and E. Johns, 1992: The deep western boundary current in the tropical North Atlantic Ocean. Deep-Sea Res., 39(11/12), 1967-1984.
42. Nittrouer, C. A., D. J. DeMaster, A. G. Figueiredo, and J. M. Rome, 1991: AmasSeds: An interdisciplinary investigation of a complex coastal environment. Oceanography, 4, 3-7.
43. Philander, S. G. H., and R. C. Pacanowski, 1980: The generation of equatorial currents. J. Geophys. Res., 85(C2), 1123-1136.
44. _, and _, 1986: A model of the season cycle in the tropical Atlantic Ocean. J. Geophys. Res., 91, 14 192-14 206.
45. Richardson, P. L., and D. Walsh, 1986: Mapping climatological seasonal variations of surface currents in the tropical Atlantic using ship drifts. J. Geophys. Res., 91, 10537-10550.
46. _, and W. J. Schmitz Jr., 1993: Deep cross-equatorial flow in the Atlantic measured with SOFAR floats. J. Geophys. Res., 98(C5), 8371-8387.
47. _, S. Arnault, S. Garzoli, and J. G. Bruce, 1992: Annual cycle of the Atlantic North Equatorial Countercurrent. Deep-Sea Res., 39(6), 997-1014.
48. _, G. E. Hufford, R. Limeburner, and W. S. Brown, 1994: North Brazil Current retroflection eddies. J. Geophys. Res., 99(C3), 5081-5093.
49. Rintoul, S., 1991: South Atlantic interbasin exchange. J. Geophys. Res.. 96, 2675-2692.
50. Roemmich, D., 1983: The balance of geostrophic and Ekman transports in the tropical Atlantic Ocean. J. Phys. Oceanogr., 13, 1534-1539.
51. _, and C. Wunsch, 1985: Two transatlantic sections: Meridional circulation and heat flux in the subtropical North Atlantic Ocean. Deep-Sea Res., 32, 609-664.
52. Schmitz, W., Jr., and P. Richardson, 1991: On the sources of the Florida Current. Deep-Sea Res., 38 (Suppl.), S379-S409.
53. _, and M. S. McCartney, 1993: On the North Atlantic circulation. Rev. Geophys., 31(1), 29-49.
54. Schott, F. A., and C. W. Boning, 1991: The WOCE Model in the western equatorial Atlantic: Upper layer circulation. J. Geophys. Res., 96(C4), 6993-7004.
55. _, J. C. Swallow, and M. Fieux, 1990: The Somali Current at the equator: Annual cycle of currents and transports in the upper 1000 m and connection to neighbouring latitudes. Deep-Sea Res., 37, 1825-1848.
56. _, J. Fischer, J. Reppin, and U. Send, 1993: On mean and seasonal currents and transports at the western boundary of the equatorial Atlantic. J. Geophys. Res., 98(C8), 14353-14368.
57. _, L. Stramma, and J. Fischer, 1995: The warm water inflow into the western tropical Atlantic boundary regime, spring 1994. J. Geophys. Res., 100(C12), 24745-24760.
58. Stramma, L., 1991: Geostrophic transport of the south equatorial current in the Atlantic. J. Mar. Res., 49, 281-294.
59. _, J. Fischer, and J. Reppin, 1995: The North Brazil Undercurrent. Deep-Sea Res. Part I, 42, 773-795.
60. Swallow, J. C., F. A. Schott, and M. Fieux, 1991: Structure and transport of the East African coastal current. J. Geophys. Res., 96(C12), 22245-22257.
61. Taylor, G. I., 1921: Diffusion by continuous movements. Proc. London Math. Soc., 2, 196-211.
62. Weisberg, R. H., and T. J. Weingartner, 1988: Instability waves in the equatorial Atlantic Ocean. J. Phys. Oceanogr., 18, 1641-1657.
63. Whitehead, R. H., and V. Worthington, 1982: The flux and mixing rates of Antarctic Bottom Water within the North Atlantic. J. Geophys. Res., 87, 7903-7924.
64. Wilson, W. D., E. Johns, and R. L. Molinari, 1994: Upper layer circulation in the western tropical North Atlantic Ocean during August 1989. J. Geophys. Res., 99(C11), 22513-22523.
65. Wyrtki, K., L. Magaard, and J. Hager, 1976: Eddy energy in the oceans. J. Geophys. Res., 81, 2641-2646.
66. Zantopp, R. J., W. E. Johns, and T. N. Lee, 1993: Moored current meter observations off Northeast Brazil (STAGS-11 Array). RSMAS, University of Miami, Tech. Rep., 93-005, 56 pp. [Available from Dr. W. E. Johns, RSMAS, University of Miami, 4600 Rickenbacker Cswy., Miami, FL 33149.]