Anticyclonic and cyclonic eddies of subtropical origin in the subantarctic zone south of Africa

Journal of Geophysical Research: Oceans

Volumn 116, Issue 11, 2011, Pages

  Arhan, Michel ^a   Speich, Sabrina ^b   Messager, Christophe ^a   Dencausse, Guillaume ^a,c   Fine, Rana ^d   Boye, Marie ^e  

^a IFREMER   (France)

^b Centre Bretagne   (France)

^c OBSERVATOIRE MIDI PYRÉNÉES   (France)

^d UNIVERSITY OF MIAMI   (United States)

^e Universite de Bretagne Occidentale   (France)

Author keywords

[No Author keywords available]

Indexed keywords

DOPPLER EFFECT; HEAT FLUX; HYDROGRAPHIC SURVEYS; STORMS;

ACOUSTIC DOPPLER CURRENT PROFILERS; AIR SEA FLUX; BIOGEOCHEMICAL TRACERS; CONTINENTAL SLOPE; CYCLONIC EDDY; LOW OXYGEN; SEA SURFACE HEIGHT; SOUTH AFRICA; SUBANTARCTIC ZONES; SUBTROPICAL WATER; SWIRL VELOCITIES; WATER PROPERTIES; WATER-MASS PROPERTIES;

TROPICS;

ACOUSTIC DOPPLER CURRENT PROFILER; AIR-SEA INTERACTION; ANTICYCLONE; EDDY COVARIANCE; KINEMATICS; SEA SURFACE HEIGHT; SUBANTARCTIC REGION; SUBTROPICAL CONVERGENCE; TRACER; WATER MASS;

AFRICA; AGULHAS RIDGE; ATLANTIC OCEAN;

EID: 80052490017     PISSN: None     EISSN: 21699291     Source Type: Journal    
DOI: 10.1029/2011JC007140     Document Type: Article

References (44)

1. Arhan, M., H. Mercier, and J. R. E. Lutjeharms (1999), The disparate evolution of three Agulhas rings in the South Atlantic Ocean, J. Geophys. Res., 104, 20,987-21,005, doi:10.1029/1998JC900047.
2. Baker-Yeboah, S., D. A. Byrne, and D. R. Watts (2010a), Observations of mesoscale eddies in the South Atlantic Cape Basin: Baroclinic and deep barotropic eddy variability, J. Geophys. Res., 115, C12069, doi:10.1029/ 2010JC006236.
3. Baker-Yeboah, S., G. R. Flierl, G. G. Sutyrin, and Y. Zhang (2010b), Transformation of an Agulhas eddy near the continental slope, Ocean Sci., 6, 143-159, doi:10.5194/os-6-143-2010.
4. Belkin, I. M., and A. L. Gordon (1996), Southern Ocean fronts from the Greenwich meridian to Tasmania, J. Geophys. Res., 101, 3675-3696, doi:10.1029/95JC02750. (Pubitemid 26470372)
5. Boebel, O., J. Lutjeharms, C. Schmid, W. Zenk, T. Rossby, and C. Barron (2003), The Cape Cauldron: A regime of turbulent inter-ocean exchange, Deep Sea Res., Part II, 50, 57-86, doi:10.1016/S0967-0645(02)00379-X. (Pubitemid 36035100)
6. Branellec, P., M. Arhan, and S. Speich (2010), Projet GoodHope: Campagne BONUS/GOODHOPE-Rapport de données CTD-O2, Ifremer internal report, Rep. OPS/LPO/10-02, 282 pp., Ifremer, Issy-les-Moulineaux, France. [Available at http://stockage.univ-brest.fr/~speich/BONUS-GoodHope/gh08-rapp-hydroSM.pdf]
7. Chapman, P., C. M. Duncombe Rae, and B. R. Allanson (1987), Nutrients, chlorophyll and oxygen relationships in the surface layers at the Agulhas Retroflection, Deep-Sea Res., 34, 1399-1416, doi:10.1016/0198-0149(87)90134-8.
8. Dencausse, G. (2009), Echanges indo-atlantiques d'eau subtropicale en relation aux structures frontales et de méso-échelle: Utilisation de la série temporelle altimétrique de niveau de la mer, thèse de doctorat, 214 pp., Univ. de Bretagne Occidentale, Brest, France.
9. Dencausse, G., M. Arhan, and S. Speich (2010), Routes of Agulhas rings in the southeastern Cape Basin, Deep Sea Res., Part I, 57, 1406-1421, doi:10.1016/j.dsr.2010.07.008.
10. Dencausse, G., M. Arhan, and S. Speich (2011), Is there a continuous Subtropical Front south of Africa?, J. Geophys. Res., 116, C02027, doi:10.1029/2010JC006587.
11. Doglioli, A. M., B. Blanke, S. Speich, and G. Lapeyre (2007), Tracking coherent structures in a regional ocean model with wavelet analysis: Application to Cape Basin eddies, J. Geophys. Res., 112, C05043, doi:10.1029/2006JC003952.
12. Donners, J., S. S. Drijfhout, and A. C. Coward (2004), Impact of cooling on the water mass exchange of Agulhas rings in a high resolution ocean model, Geophys. Res. Lett., 31, L16312, doi:10.1029/2004GL020644. (Pubitemid 39428489)
13. Fairall, C. W., E. F. Bradley, J. E. Hare, A. A. Grachev, and J. B. Edson (2003), Bulk parameterization on air-sea fluxes: Updates and verification for the COARE algorithm, J. Clim., 16, 571-591, doi:10.1175/1520-0442(2003) 016〈0571:BPOASF〉2.0.CO;2. (Pubitemid 37164410)
14. Fine, R. A. (2011), Observations of CFCs and SF6 as ocean tracers, Annu. Rev. Mar. Sci., 3, 173-195, doi:10.1146/annurev.marine.010908.163933.
15. Fine, R. A., M. J. Warner, and R. F. Weiss (1988), Water mass modifications at the Agulhas Retroflaction: Chlorofluoromethane studies, Deep Sea Res., 35, 311-332, doi:10.1016/0198-0149(88)90013-1.
16. Flierl, G. R. (1981), Particle motions in large amplitude wave fields, Geophys. Astrophys. FluidDyn., 18, 39-74, doi:10.1080/03091928108208773.
17. Garzoli, S. L., P. L. Richardson, C. M. Duncombe Rae, D. M. Fratantoni, G. J. Goni, and A. J. Roubicek (1999), Three Agulhas rings observed during the Benguela Current Experiment, J. Geophys. Res., 104, 20,971-20,985, doi:10.1029/1999JC900060.
18. Gladyshev, S., M. Arhan, A. Sokov, and S. Speich (2008), A hydrographic section from South Africa to the southern limit of the Antarctic Circum-polar Current at the Greenwich meridian, Deep Sea Res., Part I, 55, 1284-1303, doi:10.1016/j.dsr.2008.05.009.
19. Gordon, A. L., J. R. E. Lutjeharms, and M. L. Gründlingh (1987), Stratification and circulation at the Agulhas retro flection, Deep Sea Res., 34, 565-599, doi:10.1016/0198-0149(87)90006-9.
20. Gordon, A. L., R. F. Weiss, M. W. 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.
21. Gouriou, Y., and C. Kermabon (1997), Traitement des données LADCP, Doc. Sci. ORSTOM Cayenne O.P.21, Off. de la Rech. Sci. et Tech. d'Outre-Mer, Paris.
22. Herbette, S., Y. Morel, and M. Arhan (2004), Subduction of a surface vortex under an outcropping front, J. Phys. Oceanogr., 34, 1610-1627, doi:10.1175/1520-0485(2004)034〈1610:SOASVU〉2.0.CO;2. (Pubitemid 39066743)
23. Izenic, Y, C. Kermabon, F. Gaillard and P. Lherminier (2005), Cascade 5.3: Logiciel de traitement et d'analyse des mesures ADCP de coque-Documentation utilisateur. Rapport technique, Ifremer, Issy-les-Moulineaux, France.
24. Lutjeharms, J. R. E. (1988), Meridional heat transport across the Sub-Tropical Convergence by a warm eddy, Nature, 331, 251-254, doi:10.1038/331251a0.
25. Lutjeharms, J. R. E., and H. R. Valentine (1988), Eddies at the Subtropical Convergence south of Africa, J. Phys. Oceanogr., 18, 761-774, doi:10.1175/1520-0485(1988)018〈0761:EATSCS〉2.0.CO;2.
26. Lutjeharms, J. R. E., and R. C. van Ballegooyen (1988), The retroflection ofthe Agulhas Current, J. Phys. Oceanogr., 18, 1570-1583, doi:10.1175/1520- 0485(1988)018〈1570:TROTAC〉2.0.CO;2.
27. Lutjeharms, J. R. E., O. Boebel, and H. T. Rossby (2003), Agulhas cyclones, Deep Sea Res., Part II, 50, 13-34, doi:10.1016/S0967-0645(02)00378-8. (Pubitemid 36035098)
28. McDonagh, E. L., and K. J. Heywood (1999), The origin of an anomalous ring in the southeast Atlantic, J. Phys. Oceanogr., 29, 2050-2064, doi:10.1175/1520-0485(1999)029〈2050:TOOAAR〉2.0.CO;2. (Pubitemid 30061297)
29. Mercier, H., M. Arhan, and J. R. E. Lutjeharms (2003), Upper-layer circulation in the eastern equatorial and South Atlantic ocean in January-March 1995, Deep Sea Res., Part I, 50, 863-887, doi:10.1016/S0967-0637(03)00071-2. (Pubitemid 37332233)
30. Morrow, R., F. Birol, D. Griffin, and J. Sudre (2004), Divergent pathways of cyclonic and anti-cyclonic ocean eddies, Geophys. Res. Lett., 31, L24311, doi:10.1029/2004GL020974. (Pubitemid 40301208)
31. Olson, D. B., R. A. Fine, and A. L. Gordon (1992), Convective modifications of water masses in the Agulhas, Deep Sea Res., 39, S163-S181, doi:10.1016/S0198-0149(11)80010-5.
32. Orsi, A. H., T. Whitworth III, and W. D. Nowlin (1995), On the meridional extent and fronts of the Antarctic Circumpolar Current, Deep Sea Res. Part I, 42, 641-673, doi:10.1016/0967-0637(95)00021-W. (Pubitemid 26462963)
33. Penven, P., J. R. E. Lutjeharms, P. Marchesiello, C. Roy, and S. J. Weeks (2001), Generation of cyclonic eddies by the Agulhas Current in the lee ofthe Agulhas Bank, Geophys. Res. Lett, 28, 1055-1058, doi:10.1029/2000GL011760. (Pubitemid 32569206)
34. Richardson, P. L. (2007), Agulhas leakage into the Atlantic estimated with subsurface floats and surface drifters, Deep Sea Res. Part I, 54,1361-1389, doi:10.1016/j.dsr.2007.04.010. (Pubitemid 47095310)
35. Rintoul, S. R., and T. W. Trull (2001), Seasonal evolution ofthe mixed layer in the Subantarctic Zone south of Australia, J. Geophys. Res., 106, 31,447-31,462, doi:10.1029/2000JC000329.
36. Rouault, M., and J. R. E. Lutjeharms (2000), Air-sea exchange over an Agulhas eddy at the Subtropical Convergence, Global Atmos. Ocean Syst, 7, 125-150.
37. Rubio, A., B. Blanke, S. Speich, N. Grima, and C. Roy (2009), Mesoscale eddy activity in the southern Benguela upwelling system from satellite altimetry and model data, Prog. Oceanogr., 83(1-4), 288-295, doi:10.1016/j.pocean.2009. 07.029.
38. Small, R. J., S. P. DeSzoeke, S. P. Xie, L. O'Neill, H. Seo, Q. Song, P. Cornillon, M. Spall, and S. Minobe (2008), Air-sea interaction over ocean fronts and eddies, Dyn. Atmos. Oceans, 45, 274-319, doi:10.1016/j.dynatmoce. 2008.01.001.
39. Speich, S., and F. Dehairs (2008), The MD166 BONUS-GOODHOPE cruise, LPO UMR 6523, CNRS-IFREMER-IRD-UBO, Rep. OPS/LPO/08-06, 245 pp., Ifremer, Issy-les-Moulineaux, France.
40. Stramma, L., and R. G. Peterson (1990), The South Atlantic Current, J. Phys. Oceanogr., 20, 846-859, doi:10.1175/1520-0485(1990)020〈 0846:TSAC〉2.0.CO;2.
41. Swart, S., and S. Speich (2010), An altimetry-based gravest empirical mode south of Africa: 2. Dynamic nature ofthe Antarctic Circumpolar Current fronts, J. Geophys. Res., 115, C03003, doi:10.1029/2009JC005300.
42. Swart, S., S. Speich, I. J. Ansorge, G. J. Goni, S. Gladyshev, and J. R. E. Lutjeharms (2008), Transport and variability of the Antarctic Circumpolar Current south of Africa, J. Geophys. Res., 113, C09014, doi:10.1029/ 2007JC004223.
43. Van Aken, H. M., A. K. van Veldhoven, C. Veth, W. P. M. de Ruijter, P. J. van Leeuwen, S. S. Drijfhout, C. P. Whittle, and M. Rouault (2003), Observation of a young Agulhas ring, Astrid, during MARE in March 2000, Deep Sea Res., Part II, 50, 167-195, doi:10.1016/S0967-0645(02) 00383-1. (Pubitemid 36035104)
44. Visbeck, M. (2002), Deep velocity profiling using lowered acoustic Doppler current profilers: Bottom track and inverse solutions, J. Atmos. Oceanic Technol, 19(5), 794-807, doi:10.1175/1520-0426(2002)019〈0794: DVPULA〉2.0.CO;2. (Pubitemid 34657946)