Response and impact of equatorial ocean dynamics and tropical instability waves in the tropical Atlantic under global warming: A regional coupled downscaling study

Journal of Geophysical Research: Oceans

Volumn 116, Issue 3, 2011, Pages

  Seo, Hyodae ^a,b   Xie, Shang Ping ^a  

^a UNIVERSITY OF HAWAII   (United States)

^b WOODS HOLE OCEANOGRAPHIC INSTITUTION   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

COMPUTER SIMULATION; GLOBAL WARMING; HEAT FLUX; OCEAN CURRENTS; RAIN; TROPICS; WATER WAVES;

ASYMMETRIC CHANGE; CHANGING CLIMATE; COUPLED CLIMATE MODEL; COUPLED MODELS; DOWN-SCALING; DYNAMIC DOWNSCALING; DYNAMIC INSTABILITY; DYNAMICAL PROCESS; EDDY HEAT FLUXES; EQUATORIAL PACIFIC; EQUATORIAL WINDS; GEOPHYSICAL FLUID DYNAMICS LABORATORIES; NEAR-SURFACE; OCEAN DYNAMICS; REGIONAL MODEL; SURFACE WARMING; TROPICAL ATLANTIC; TROPICAL INSTABILITY WAVES; VERTICAL VELOCITY; ZONAL CURRENTS;

CLIMATE MODELS;

CLIMATE EFFECT; CLIMATE MODELING; DOWNSCALING; FLUID DYNAMICS; GLOBAL WARMING; HEAT FLUX; MARINE ATMOSPHERE; NUMERICAL MODEL; RAINFALL; REGIONAL CLIMATE; STRATIFICATION; UPWELLING; VERTICAL PROFILE;

ATLANTIC OCEAN; ATLANTIC OCEAN (TROPICAL);

EID: 79953250062     PISSN: None     EISSN: 21699291     Source Type: Journal    
DOI: 10.1029/2010JC006670     Document Type: Article

References (122)

1. Alexander, M. A., I. Blade, M. Newman, J. R. Lanzante, N. Lau, and J. Scott (2002), The atmospheric bridge: The influence of ENSO teleconnections on air-sea interaction over global oceans, J. Clim., 15, 2205-2231, doi:10.1175/1520-0442(2002)0152.0.CO;2. (Pubitemid 35371976)
2. An, S. I. (2008), Interannual variations of the tropical ocean instability wave and ENSO, J. Clim., 21, 3680-3686, doi:10.1175/2008JCLI1701.1.
3. Baturin, N. G., and P. P. Niiler (1997), Effects of instability waves in the mixed layer of the equatorial Pacific, J. Geophys. Res., 102, 27,771-27,793, doi:10.1029/97JC02455.
4. Brandt, P., F. A. Schott, C. Provost, A. Kartavtseff, V. Hormann, B. Bourles, and J. Fischer (2006), Circulation in the central equatorial Atlantic: Mean and intraseasonal to seasonal variability, Geophys. Res. Lett., 33, L07609, doi:10.1029/2005GL025498. (Pubitemid 43772900)
5. Breugem, W. P., W. Hazeleger, and R. J. Haarsma (2006), Multimodel study of tropical Atlantic variability and change, Geophys. Res. Lett., 33, L23706, doi:10.1029/2006GL027831. (Pubitemid 47407896)
6. Breugem, W. P., W. Hazeleger, and R. J. Haarsma (2007), Mechanisms of northern tropical Atlantic variability and response to CO2 doubling, J. Clim., 20, 2691-2705, doi:10.1175/JCLI4137.1. (Pubitemid 46979771)
7. Bryden, H. L., and E. C. Brady (1989), Eddy momentum and heat fluxes and their effect on the circulation of the equatorial Pacific Ocean, J. Mar. Res., 47, 55-79, doi:10.1357/002224089785076389.
8. Cane, M., A. C. Clement, A. Kaplan, Y. Kushnir, D. Pozdnyakov, R. Seager, S. E. Zebiak, and R. Murtugudde (1997), Twentieth-century sea surface temperature trends, Science, 275, 957-960, doi:10.1126/ science.275.5302.957.
9. Carton, J. A., and Z. Zhou (1997), Annual cycle of sea surface temperature in the tropical Atlantic Ocean, J. Geophys. Res., 102, 27,813-27,824, doi:10.1029/97JC02197.
10. Carton, J. A., X. Cao, B. S. Giese, and A. M. da Silva (1996), Decadal and interannual SST variability in the tropical Atlantic Ocean, J. Phys. Oceanogr., 26, 1165-1175, doi:10.1175/1520-0485(1996)0262.0.CO;2.
11. Carton, J. A., G. Chepurin, X. Cao, and B. Giese (2000), A simple ocean data assimilation analysis of the global upper ocean 1950-95. Part I: Methodology, J. Phys. Oceanogr., 30, 294-309, doi:10.1175/1520- 0485(2000)0302.0.CO;2. (Pubitemid 30218341)
12. Chang, P. (1994), A study of the seasonal cycle of sea surface temperature in the tropical Pacific Ocean using reduced gravity models, J. Geophys. Res., 99, 7725-7741, doi:10.1029/93JC03561. (Pubitemid 24405931)
13. Chang, P., et al. (2006), Climate fluctuations of tropical coupled systems- The role of ocean dynamics, J. Clim., 19, 5122-5174, doi:10.1175/ JCLI3903.1. (Pubitemid 44712437)
14. Chavez, F. P., P. G. Strutton, G. E. Friedrich, R. A. Feely, G. Feldman, D. Folay, and M. J. McPhaden (1999), Biological and chemical response of the equatorial Pacific Ocean to the 1997-98 El Niño, Science, 286, 2126-2131, doi:10.1126/science.286.5447.2126. (Pubitemid 129516281)
15. Chelton, D. B., and M. H. Freilich (2005), Scatterometer-based assessment of 10-m wind analysis from the operational ECMWF and NCEP numerical weather prediction models, Mon. Weather Rev., 133, 409-429, doi:10.1175/MWR-2861.1. (Pubitemid 40323046)
16. Chelton, D. B., F. J. Wentz, C. L. Gentemann, R. A. de Szoeke, and M. G. Schlax (2000), Satellite microwave SST observations of transequatorial tropical instability waves, Geophys. Res. Lett., 27, 1239-1242, doi:10.1029/1999GL011047. (Pubitemid 32040550)
17. Chelton, D. B., S. K. Esbensen, M. G. Schlax, N. Thum, M. H. Freilich, F. J. Wentz, C. L. Gentemann, M. J. McPhaden, and P. S. Schopf (2001), Observations of coupling between surface wind stress and sea surface temperature in the eastern tropical Pacific, J. Clim., 14, 1479-1498, doi:10.1175/1520- 0442(2001)0142.0.CO;2. (Pubitemid 33038334)
18. Clement, A. C., R. Seager, M. A. Cane, and S. E. Zebiak (1996), An ocean dynamical thermostat, J. Clim., 9, 2190-2196, doi:10.1175/1520-0442 (1996)0092.0.CO;2.
19. Clement, A. C., R. Byrgman, and J. R. Norris (2009), Observational and model evidence for positive low-level cloud feedback, Science, 325, 460-464, doi:10.1126/science.1171255.
20. Cox, M. D. (1980), Generation and propagation of 30-day waves in a numerical model of the Pacific, J. Phys. Oceanogr., 10, 1168-1186, doi:10.1175/1520-0485(1980)0102.0.CO;2.
21. Davey, M., et al. (2002), STOIC: A study of coupled model climatology and variability in tropical ocean regions, Clim. Dyn., 18, 403-420, doi:10.1007/s00382-001-0188-6. (Pubitemid 34161947)
22. Delworth, T. L., et al. (2006), GFDL's CM2 global coupled climate models. Part I: Formulation and simulation characteristics, J. Clim., 19, 643-674, doi:10.1175/JCLI3629.1.
23. Deser, C., J. J. Bates, and S. Wahl (1993), The influence of sea surface temperature gradients on stratiform cloudiness along the equatorial front in the Pacific Ocean, J. Clim., 6, 1172-1180, doi:10.1175/1520-0442 (1993)0062.0.CO;2. (Pubitemid 24396383)
24. de Szoeke, S. P., and S.-P. Xie (2008), The tropical eastern Pacific seasonal cycle: Assessment of errors and mechanisms in IPCC AR4 coupled ocean-atmosphere general circulation models, J. Clim., 21, 2573-2590, doi:10.1175/2007JCLI1975.1.
25. Dewitte, B., C. Cibot, C. Périgaud, S. I. An, and L. Terray (2007), Interaction between near-annual and ENSO modes in a CGCM simulation: Role of equatorial background mean state, J. Clim., 20, 1035-1052, doi:10.1175/JCLI4060.1. (Pubitemid 46554530)
26. DiNezio, P. N., A. C. Clement, G. A. Vecchi, B. J. Soden, B. P. Kirtman, and S. K. Lee (2009), Climate response of the equatorial Pacific to global warming, J. Clim., 22, 4873-4892, doi:10.1175/2009JCLI2982.1.
27. Düing, W., et al. (1975), Meanders and long waves in the equatorial Atlantic, Nature, 257, 280-284, doi:10.1038/257280a0.
28. Evans, W., P. G. Strutton, and F. P. Chavez (2009), Impact of tropical instability waves on nutrient and chlorophyll distributions in the equatorial Pacific, Deep Sea Res. Part I, 56, 178-188, doi:10.1016/j. dsr.2008.08.008.
29. Fairall, C. W., E. F. Bradley, D. P. Rogers, J. D. Edson, and G. S. Young (1996), Bulk parameterization of air-sea fluxes for Tropical Ocean Global Atmosphere Coupled-Ocean Atmosphere Response Experiment, J. Geophys. Res., 101, 3747-3764, doi:10.1029/95JC03205. (Pubitemid 26470414)
30. Fedorov, A. V., and G. Philander (2001), A stability analysis of the tropical ocean-atmosphere interactions: Bridging measurements and theory for El Niño, J. Clim., 14, 3086-3101, doi:10.1175/1520-0442(2001)0142.0.CO;2. (Pubitemid 33045281)
31. Flament, P., S. Kennan, R. Knox, P. Niiler, and R. Bernstein (1996), The three-dimensional structure of an upper ocean vortex in the tropical Pacific Ocean, Nature, 383, 610-613, doi:10.1038/383610a0. (Pubitemid 26347579)
32. Giannini, A., R. Saravanan, and P. Chang (2003), Oceanic forcing of Sahel rainfall on interannual to interdecadal time scales, Science, 302, 1027-1030, doi:10.1126/science.1089357. (Pubitemid 37386191)
33. Gorgues, T., C. Menkes, O. Aumont, J. Vialard, Y. Dandonneau, and L. Bopp (2005), Biogeochemical impact of tropical instability waves in the equatorial Pacific, Geophys. Res. Lett., 32, L24615, doi:10.1029/ 2005GL024110.
34. Graham, N. E., and T. P. Barnett (1987), Observations of sea surface temperatures, convection and surface wind divergence over tropical oceans, Science, 238, 657-659, doi:10.1126/science.238.4827.657.
35. Haidvogel, D. B., H. G. Arango, K. Hedstrom, A. Beckmann, P. Malanotte- Rizzoli, and A. F. Shchepetkin (2000), Model evaluation experiments in the North Atlantic Basin: Simulations in nonlinear terrain-following coordinates, Dyn. Atmos. Oceans, 32, 239-281, doi:10.1016/S0377- 0265(00)00049-X. (Pubitemid 30638776)
36. Ham, Y.-G., and I. S. Kang (2011), Improvement of seasonal forecasts with inclusion of tropical instability waves on initial conditions, Clim. Dyn., doi:10.1007/s00382-010-0743-0, in press.
37. Hansen, D., and C. A. Paul (1984), Genesis and effects of long waves in the equatorial Pacific, J. Geophys. Res., 89, 10,431-10,440, doi:10.1029/ JC089iC06p10431.
38. Hashizume, H., S.-P. Xie, M. Fujiwara, M. Shiotani, T. Watanabe, Y. Tanimoto, W. T. Liu, and K. Takeuchi (2002), Direct observations of atmospheric boundary layer response to SST variations associated with tropical instability waves over the eastern equatorial Pacific, J. Clim., 15, 3379-3393, doi:10.1175/1520-0442(2002)0152.0.CO;2. (Pubitemid 36093736)
39. Hastenrath, S., and L. Greischar (1993), Further work on the prediction of northeast Brazil rainfall anomalies, J. Clim., 6, 743-758, doi:10.1175/ 1520-0442(1993)0062.0.CO;2. (Pubitemid 23382905)
40. Hayes, S. P., M. J. McPhaden, and J. M. Wallace (1989), The influence of sea surface temperature on surface wind in the eastern equatorial Pacific: Weekly to monthly variability, J. Clim., 2, 1500-1506, doi:10.1175/ 1520-0442(1989)0022.0.CO;2.
41. Hazeleger, W., and P. de Vries (2003), Fate of the Equatorial Undercurrent in the Atlantic, in Interhemispheric Water Exchange in the Atlantic Ocean, Elsevier Oceanogr. Ser., vol. 66, edited by G. J. Goni and P. Malanotte-Rizzoli, pp. 175-191, doi:10.1016/S0422-9894(03) 80146-0, Elsevier, Amsterdam.
42. Hormann, V., and P. Brandt (2007), Atlantic Equatorial Undercurrent and associated cold tongue variability, J. Geophys. Res., 112, C06017, doi:10.1029/2006JC003931. (Pubitemid 47343146)
43. Huffman, G. J., R. F. Adler, D. T. Bolvin, G. Gu, E. J. Nelkin, K. P. Bowman, Y. Hong, E. F. Stocker, and D. B. Wolff (2007), TheTRMMmulti-satellite precipitation analysis: Quasi-Global, multi-year, combined-sensor precipitation estimates at fine scale, J. Hydrometeorol., 8, 38-55, doi:10.1175/JHM560.1. (Pubitemid 46444451)
44. Jochum, M., and R. Murtugudde (2006), Temperature advection by tropical instability waves, J. Phys. Oceanogr., 36, 592-605, doi:10.1175/JPO2870.1.
45. Jochum, M., P. Malanotte-Rizzoli, and A. Busalacchi (2004a), Tropical instability waves in the Atlantic Ocean, Ocean Modell., 7, 145-163, doi:10.1016/S1463-5003(03)00042-8. (Pubitemid 38300713)
46. Jochum, M., R. Murtugudde, P. Malanotte-Rizzoli, and A. Busalacchi (2004b), Internal variability in the Atlantic Ocean, in Earth Climate: The Ocean-atmosphere Interaction, Geophys. Monogr. Ser., vol. 147, edited by C. Wang, S.-P. Xie, and J. A. Carton, pp. 181-188, AGU, Washington, D. C.
47. Jochum, M., R. Murtugudde, R. Ferrari, and P. Malanotte-Rizzoli (2005), The impact of horizontal resolution on the tropical heat budget in an Atlantic Ocean model, J. Clim., 18, 841-851, doi:10.1175/JCLI-3288.1. (Pubitemid 40518227)
48. Jochum, M., M. F. Cronin, W. S. Kessler, and D. Shea (2007), Observed temperature advection by tropical instability waves, Geophys. Res. Lett., 34, L09604, doi:10.1029/2007GL029416. (Pubitemid 47008158)
49. Jochum, M., G. Danabasoglu, M. Holland, Y. O. Kwon, and W. G. Large (2008), Ocean viscosity and climate, J. Geophys. Res., 113, C06017, doi:10.1029/2007JC004515.
50. Juang, H. M. H., and M. Kanamitsu (1994), The NMC nested regional spectral model, Mon. Weather Rev., 122, 3-26, doi:10.1175/1520-0493 (1994)1222.0.CO;2.
51. Kanamitsu, M., W. Ebisuzaki, J. Woollen, S. K. Yang, J. J. Hnilo, M. Fiorino, and G. L. Potter (2002), NCEP-dOE AMIP-II Reanalysis (R-2), Bull. Am. Meteorol. Soc., 83, 1631-1643, doi:10.1175/BAMS- 83-11-1631(2002)0832.3.CO;2.
52. Kawase, H., T. Yoshikane, M. Hara, F. Kimura, T. Yasunari, B. Ailikun, H. Ueda, and T. Inoue (2009), Intermodel variability of future changes in the Baiu rainband estimated by the pseudo global warming downscaling method, J. Geophys. Res., 114, D24110, doi:10.1029/2009JD011803.
53. Kennan, S. C., and P. J. Flament (2000), Observations of a tropical instability vortex, J. Phys. Oceanogr., 30, 2277-2301, doi:10.1175/1520- 0485(2000)0302.0.CO;2.
54. Kimura, F., and A. Kitoh (2007), Downscaling by pseudo global warming method, final report, pp. 43-46, Impact of Clim. Change on Agric. Prod. Syst. in the Arid Areas, Kyoto, Japan.
55. Klein, S. A., and D. L. Hartmann (1993), The seasonal cycle of low stratiform clouds, J. Clim., 6, 1587-1606, doi:10.1175/1520-0442(1993) 0062.0.CO;2. (Pubitemid 24396418)
56. Knutson, T. R., and S. Manabe (1995), Time-mean response over the tropical Pacific to increased CO2 in a coupled ocean-atmosphere model, J. Clim., 8, 2181-2199, doi:10.1175/1520-0442(1995)0082.0.CO;2. (Pubitemid 26472929)
57. Knutson, T. R., J. J. Sirutis, S. T. Garner, G. A. Vecchi, and I. M. Held (2008), Simulated reduction in Atlantic hurricane frequency under twenty-first-century warming conditions, Nat. Geosci., 1, 359-364, doi:10.1038/ngeo202.
58. Kug, J.-s., Y.-G. Ham, F.-f. Jin, and I.-s. Kang (2010), Scale interaction between tropical instability waves and low-frequency oceanic flows, Geophys. Res. Lett., 37, L02710, doi:10.1029/2009GL041020.
59. Legeckis, R. (1977), Long waves in the eastern equatorial Pacific Ocean: A view from a geostationary satellite, Science, 197, 1179-1181, doi:10.1126/science.197.4309.1179.
60. Legeckis, R., W. Pichel, and G. Nesterczuk (1983), Equatorial long waves in geostationary satellite observations and in a multichannel sea surface temperature analysis, Bull. Am. Meteorol. Soc., 64, 133-139, doi:10.1175/1520-0477(1983)0642.0.CO;2.
61. Li, T., T. F. Hogan, and C. P. Chang (2000), Dynamic and thermodynamic regulation of ocean warming, J. Atmos. Sci., 57, 3353-3365, doi:10.1175/1520- 0469(2000)0572.0.CO;2.
62. Lien, R. C., E. A. D'Asaro, and C. E. Menkes (2008), Modulation of equatorial turbulence by tropical instability waves, Geophys. Res. Lett., 35, L24607, doi:10.1029/2008GL035860.
63. Lindzen, R. S., and S. Nigam (1987), On the role of sea surface temperature gradients in forcing low-level winds and convergence in the tropics, J. Atmos. Sci., 44, 2418-2436, doi:10.1175/1520-0469(1987)0442.0.CO;2.
64. Liu, W. T., X. Xie, P. S. Polito, S.-P. Xie, and H. Hashizume (2000), Atmospheric manifestation of tropical instability waves observed by QuikSCAT and Tropical Rain Measuring Mission, Geophys. Res. Lett., 27, 2545-2548, doi:10.1029/2000GL011545. (Pubitemid 32040320)
65. Liu, Z. (1998), The role of ocean in the response of tropical climatology to global warming: The west-east contrast, J. Clim., 11, 864-875, doi:10.1175/1520-0442(1998)0112.0.CO;2. (Pubitemid 28426402)
66. Liu, Z., S. Vavrus, F. He, N. Wen, and Y. Zhong (2005), Rethinking tropical ocean response to global warming: The enhanced equatorial warming, J. Clim., 18, 4684-4700, doi:10.1175/JCLI3579.1. (Pubitemid 43051403)
67. Löptien, U., C. Eden, A. Timmermann, and H. Dietze (2009), Effects of biologically induced differential heating in an eddy-Permitting coupled ocean-ecosystem model, J. Geophys. Res., 114, C06011, doi:10.1029/ 2008JC004936.
68. Masina, S., S. Philander, and A. Bush (1999), An analysis of tropical instability waves in a numerical model of the Pacific Ocean: 2. Generation and energetics of the waves, J. Geophys. Res., 104, 29,613-29,635, doi:10.1029/1999JC900227.
69. Mechoso, C., et al. (1995), The seasonal cycle over the tropical Pacific in general circulation model, Mon. Weather Rev., 123, 2825-2838, doi:10.1175/1520-0493(1995)1232.0.CO;2.
70. Meehl, G. A., and W. M. Washington (1996), El Niño-like climate change in a model with increased atmospheric CO2 concentration, Nature, 382, 56-60, doi:10.1038/382056a0.
71. Menkes, C. E., J. G. Vialard, S. C. Kennan, J. P. Boulanger, and G. V. Madec (2006), A modeling of the impact of tropical instability waves on the heat budget of the eastern equatorial Pacific, J. Phys. Oceanogr., 36, 847-865, doi:10.1175/JPO2904.1. (Pubitemid 44018673)
72. Miller, R. (1997), Tropical thermostats and low cloud cover, J. Clim., 10, 409-440, doi:10.1175/1520-0442(1997)0102.0.CO;2.
73. Misra, V., and M. Kanamitsu (2004), Anomaly nesting: A methodology to downscale seasonal climate simulations from AGCMs, J. Clim., 17, 3249-3262, doi:10.1175/1520-0442(2004)0172.0. CO;2. (Pubitemid 39364849)
74. Mitchell, T. P., and J. M. Wallace (1992), The annual cycle in equatorial convection and sea surface temperature, J. Clim., 5, 1140-1156, doi:10.1175/1520-0442(1992)0052.0.CO;2. (Pubitemid 23379653)
75. Moum, J. N., A. Lien, A. Perlin, J. D. Nash, M. C. Gregg, and P. J. Wiles (2009), Sea surface cooling at the equator by subsurface mixing in tropical instability waves, Nat. Geosci., 2, 761-765, doi:10.1038/ngeo657.
76. Moura, A. D., and J. Shukla (1981), On the dynamics of droughts in northeast Brazil: Observation, theory, and numerical experiments with a general circulation model, J. Atmos. Sci., 38, 2653-2675, doi:10.1175/ 1520-0469(1981)0382.0.CO;2.
77. Nagura, M., K. Ando, and K. Mizuno (2008), Pausing of the ENSO cycle: A case study from 1998 to 2002, J. Clim., 21, 342-363, doi:10.1175/ 2007JCLI1765.1. (Pubitemid 351395650)
78. Okumura, Y., S.-P. Xie, A. Numaguti, and Y. Tanimoto (2001), Tropical Atlantic air-sea interaction and its influence on the NAO, Geophys. Res. Lett., 28, 1507-1510, doi:10.1029/2000GL012565. (Pubitemid 32575968)
79. Philander, S. G. H. (1976), Instabilities of zonal equatorial currents, J. Geophys. Res., 81, 3725-3735, doi:10.1029/JC081i021p03725.
80. Philander, S. G. H., and P. Delecluse (1983), Coastal currents in low latitudes (with application to the Somali and El Niño currents), Deep Sea Res., 30, 887-902, doi:10.1016/0198-0149(83)90006-7. (Pubitemid 14465454)
81. Qiao, L., and R. H. Weisberg (1995), Tropical instability wave kinematics: Observations from the Tropical Instability Wave Experiment (TIWE), J. Phys. Oceanogr., 100, 8677-8693.
82. Ramanathan, V., and W. Collins (1991), Thermodynamic regulation of ocean warming by cirrus clouds deduced from observations of the 1987 El Niño, Nature, 351, 27-32, doi:10.1038/351027a0. (Pubitemid 21896523)
83. Reynolds, R. W., T. M. Smith, C. Liu, D. B. Chelton, K. S. Casey, and M. G. Schlax (2007), Daily high-Resolution blended analyses for sea surface temperature, J. Clim., 20, 5473-5496, doi:10.1175/2007JCLI1824.1. (Pubitemid 350285911)
84. Richter, I., and S.-P. Xie (2008), On the origin of equatorial Atlantic biases in coupled general circulation models, Clim. Dyn., 31, 587-598, doi:10.1007/s00382-008-0364-z.
85. Roberts, M. J., et al. (2009), Impact of resolution on the tropical Pacific circulation in a matrix of coupled models, J. Clim., 22, 2541-2556, doi:10.1175/2008JCLI2537.1.
86. Ruiz-barradas, A., J. A. Carton, and S. Nigam (2003), Role of the atmosphere in climate variability of the tropical Atlantic, J. Clim., 16, 2052-2065, doi:10.1175/1520-0442(2003)0162.0.CO;2. (Pubitemid 36906631)
87. Schott, F. A., M. Dengler, P. Brandt, K. Affler, J. Fischer, B. Bourles, Y. Gouriou, R. L. Molinari, and M. Rhein (2003), The zonal currents and transports at 35°W in the tropical Atlantic, Geophys. Res. Lett., 30(7), 1349, doi:10.1029/2002GL016849.
88. Schudlich, R., and J. F. Price (1992), Diurnal cycles or current, temperature and turbulent dissipation in a model of the equatorial upper ocean, J. Geophys. Res., 97, 5409-5422, doi:10.1029/91JC01918.
89. Seager, R., and R. Murtugudde (1997), Ocean dynamics, thermocline adjustment, and regulation of tropical SST, J. Clim., 10, 521-534, doi:10.1175/1520-0442(1997)0102.0.CO;2.
90. Seo, H., M. Jochum, R. Murtugudde, and A. J. Miller (2006), Effect of ocean mesoscale variability on the mean state of tropical Atlantic climate, Geophys. Res. Lett., 33, L09606, doi:10.1029/2005GL025651. (Pubitemid 43997547)
91. Seo, H., A. J. Miller, and J. O. Roads (2007a), The Scripps Coupled Ocean- Atmosphere Regional (SCOAR) model, with applications in the eastern Pacific sector, J. Clim., 20, 381-402, doi:10.1175/JCLI4016.1. (Pubitemid 46332516)
92. Seo, H., M. Jochum, R. Murtugudde, A. J. Miller, and J. O. Roads (2007b), Feedback of tropical instability wave-Induced atmospheric variability onto the ocean, J. Clim., 20, 5842-5855, doi:10.1175/JCLI4330.1.
93. Seo, H., M. Jochum, R. Murtugudde, A. J. Miller, and J. O. Roads (2008), Precipitation from African easterly waves in a coupled model of the tropical Atlantic, J. Clim., 21, 1417-1431, doi:10.1175/2007JCLI1906.1. (Pubitemid 351728492)
94. Shaffrey, L., et al. (2009), U.K. HiGEM: The new U.K. high resolution global environment model-Model description and basic evaluation, J. Clim., 22, 1861-1896, doi:10.1175/2008JCLI2508.1.
95. Shchepetkin, A. F., and J. C. McWilliams (2005), The regional oceanic modeling system (ROMS): A split-explicit, free-surface, topographyfollowing- coordinate ocean model, Ocean Modell., 9, 347-404, doi:10.1016/j.ocemod.2004.08. 002. (Pubitemid 40306754)
96. Small, R. J., S. P. de Szoeke, 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.
97. Small, R. J., K. J. Richards, S.-P. Xie, P. Dutrieux, and T. Miyama (2009), Damping of tropical instability waves caused by the action of surface currents on stress, J. Geophys. Res., 114, C04009, doi:10.1029/ 2008JC005147.
98. Strutton, P. G., J. P. Ryan, and F. P. Chavez (2001), Enhanced chlorophyll associated with tropical instability waves in the equatorial Pacific, Geophys. Res. Lett., 28, 2005-2008, doi:10.1029/2000GL012166. (Pubitemid 34039403)
99. Sutton, R. T., W. A. Norton, and S. P. Jewson (2001), The North Atlantic Oscillation-What role for the ocean?, Atmos. Sci. Lett., 1, 89-100, doi:10.1006/asle.2000.0018.
100. Vecchi, G. A., and B. J. Soden (2007), Global warming and the weakening of the tropical circulation, J. Clim., 20, 4316-4340, doi:10.1175/ JCLI4258.1. (Pubitemid 47457033)
101. Vecchi, G. A., B. J. Soden, A. T. Wittenberg, I. M. Held, A. Leetmaa, and M. J. Harrison (2006), Weakening of tropical Pacific atmospheric circulation due to anthropogenic forcing, Nature, 441, 73-76, doi:10.1038/ nature04744.
102. von Schuckmann, K., P. Brandt, and C. Eden (2008), Generation of tropical instability waves in the Atlantic Ocean, J. Geophys. Res., 113, C08034, doi:10.1029/2007JC004712.
103. Wallace, J. M., T. P. Mitchell, and C. Deser (1989), The influence of sea surface temperature on surface wind in the eastern equatorial Pacific: Seasonal and interannual variability, J. Clim., 2, 1492-1499, doi:10.1175/1520- 0442(1989)0022.0.CO;2.
104. Wang, W., and M. J. McPhaden (1999), The surface-layer heat balance in the equatorial Pacific Ocean. Part I: Mean seasonal cycle, J. Phys. Oceanogr., 29, 1812-1831, doi:10.1175/1520-0485(1999)0292.0.CO;2. (Pubitemid 30061300)
105. Weisberg, R. H. (1984), Instability waves observed on the equator in the Atlantic Ocean during 1983, Geophys. Res. Lett., 11, 753-756, doi:10.1029/GL011i008p00753. (Pubitemid 14627910)
106. Weisberg, R. H., and T. J. Weingartner (1988), Instability waves in the equatorial Atlantic Ocean, J. Phys. Oceanogr., 18, 1641-1657, doi:10.1175/1520-0485(1988)0182.0.CO;2.
107. Wittenberg, A. T. (2002), ENSO response to altered climates, Ph.D. thesis, 475 pp., Princeton Univ., Princeton, N. J.
108. Wittenberg, A. T., A. Rosati, N. C. Lau, and J. J. Ploshay (2006), GFDL's CM2 global coupled climate models. Part III: Tropical Pacific climate and ENSO, J. Clim., 19, 698-722, doi:10.1175/JCLI3631.1.
109. Wu, Q., and K. P. Bowman (2007), Multiyear satellite observations of the atmospheric response to Atlantic tropical instability waves, J. Geophys. Res., 112, D19104, doi:10.1029/2007JD008627. (Pubitemid 350226623)
110. Xie, S.-P. (1994), On the genesis of the equatorial annual cycle, J. Clim., 7, 2008-2013, doi:10.1175/1520-0442(1994)0072.0. CO;2.
111. Xie, S.-P., and J. A. Carton (2004), Tropical Atlantic variability: Patterns, mechanisms, and impacts, in Ocean-atmosphere Interaction and Climate Variability, Geophsy. Monogr. Ser., vol. 147, edited by C. Wang, S.-P. Xie, and J. A. Carton, pp. 121-142, AGU, Washington, D. C.
112. Xie, S.-P., T. Miyama, Y. Wang, H. Xu, S. P. de Szoeke, R. J. Small, K. J. Richards, T.Mochizuki, and T. Awaji (2007), A regional ocean-atmosphere model for eastern Pacific climate: Towards reducing tropical biases, J. Clim., 20, 1504-1522, doi:10.1175/JCLI4080.1. (Pubitemid 46681946)
113. Xie, S.-P., C. Deser, G. A. Vecchi, J. Ma, H. Teng, and A. T. Wittenberg (2010), Global warming pattern formation: Sea surface temperature and rainfall, J. Clim., 23, 966-986, doi:10.1175/2009JCLI3329.1.
114. Yoder, J. A., S. G. Ackleson, R. T. Barber, P. Flament, and W. M. Balch (1994), A line in the sea, Nature, 371, 689-692, doi:10.1038/371689a0. (Pubitemid 24329615)
115. Yoshimura, K., and M. Kanamitsu (2009), Specification of external forcing for regional model integrations, Mon. Weather Rev., 137, 1409-1421, doi:10.1175/2008MWR2654.1.
116. Yu, J.-y., and W. T. Liu (2003), A linear relationship between ENSO intensity and tropical instability wave activity in the eastern Pacific Ocean, Geophys. Res. Lett., 30(14), 1735, doi:10.1029/2003GL017176.
117. Yu, L., and R. A. Weller (2007), Objectively analyzed air-sea heat fluxes for the global ice-free oceans (1981-2005), Bull. Am. Meteorol. Soc., 88, 527-539, doi:10.1175/BAMS-88-4-527. (Pubitemid 46784458)
118. Yu, Z., K. P. McCreary, and J. A. Proehl (1995), Meridional asymmetry and energetics of tropical instability waves, J. Phys. Oceanogr., 25, 2997-3007, doi:10.1175/1520-0485(1995)0252.0. CO;2. (Pubitemid 26464146)
119. Yu, Z., P. S. Schopf, and J. P. McCreary (1997), On the annual cycle of upper-Ocean circulation in the eastern equatorial Pacific, J. Phys. Oceanogr., 27, 309-324, doi:10.1175/1520-0485(1997)0272.0.CO;2.
120. Zahn, M., and H. von Storch (2010), Decreased frequency of North Atlantic polar lows associated with future climate warming, Nature, 467, 309-312, doi:10.1038/nature09388.
121. Zebiak, S. E. (1993), Air-sea interaction in the equatorial Atlantic region, J. Clim., 6, 1567-1586, doi:10.1175/1520-0442(1993) 0062.0.CO;2. (Pubitemid 24396372)
122. Zhang, R. H., and A. J. Busalacchi (2008), Rectified effects of tropical instability wave (TIW)-Induced atmospheric wind feedback in the tropical Pacific, Geophys. Res. Lett., 35, L05608, doi:10.1029/2007GL033028. (Pubitemid 351676018)