The oceanic zone of convergence on the eastern edge of the Pacific warm pool: A synthesis of results and implications for El Niño-Southern Oscillation and biogeochemical phenomena

Journal of Geophysical Research: Oceans

Volumn 106, Issue C2, 2001, Pages 2363-2386

  Picaut, Joel ^a,e   Ioualalen, Mansour ^b   Delcroix, Thierry ^b   Masia, François ^b   Murtugudde, Ragu ^c   Vialard, Jérome ^d  

^a INSTITUT DE RECHERCHE POUR LE DÉVELOPPEMENT   (France)

^b INSTITUT DE RECHERCHE POUR LE DÉVELOPPEMENT   (New Caledonia)

^c UNIVERSITY OF MARYLAND   (United States)

^d EUROPEAN CENTRE FOR MEDIUM RANGE WEATHER FORECASTS   (United Kingdom)

^e LEGOS   (France)

Author keywords

[No Author keywords available]

Indexed keywords

SCOMBRIDAE;

BIOGEOCHEMISTRY; CONVERGENCE; EL NINO-SOUTHERN OSCILLATION; OCEANIC FRONT; WARM POOL;

(WEST); PACIFIC OCEAN;

EID: 0035085605     PISSN: None     EISSN: 21699291     Source Type: Journal    
DOI: 10.1029/2000jc900141     Document Type: Article

References (125)

1. Ando, K., and M. J. McPhaden, Variability of surface layer hydrography in the tropical Pacific Ocean, J. Geophys. Res., 102, 23,063-23,078, 1997.
2. Barnston, A. G., M. Chelliah, and S. B. Goldenberg, Documentation of a high ENSO-related SST region in the equatorial Pacific, Atmos. Ocean, 35, 367-383, 1997.
3. Battisti, D. S., Dynamics and thermodynamics of a warming event in a coupled tropical atmosphere-ocean model, J. Atmos. Sc., 45, 2889-2919, 1988.
4. Battisti, D. S., and A. C. Hirst, Interannual variability in a tropical atmosphere ocean model: Influence of the basic state, ocean geometry and nonlinearity, J. Atmos. Sci., 46, 1687-1712, 1989.
5. Battisti, D. S., and E. S. Sarachik, Understanding and predicting ENSO, Rev. Geophys., 33, 1367-1376, 1995.
6. Betts, A. K., and W. Ridgway, Climatic equilibrium of the atmospheric convective boundary-layer over a tropical Ocean, J. Atmos. Sci., 46, 2621-2641, 1989.
7. Bjerknes, J., Atmospheric teleconnections from the equatorial Pacific, Mon. Weather Rev., 97, 163-172, 1969.
8. Blanke, B., and P. Delecluse, Low-frequency variability of the tropical Atlantic ocean simulated by a general circulation model with mixed layer physics, J. Phys. Oceanogr., 23, 1363-1388, 1993.
9. Boulanger, J.-P., and L. Fu, Evidence of boundary reflection of Kelvin and first-mode Rossby waves from TOPEX/Poseidon sea level data, J. Geophys. Res., 101, 16,361-16,371, 1996.
10. Boulanger, J.-P., and C. Menkes, Propagation and reflection of long equatorial waves in the Pacific Ocean during the 1992-1993 El Niño, J. Geophys. Res., 100, 25,041-25,059, 1995.
11. Boulanger, J. P., and C. Menkes, Long equatorial wave reflection in the Pacific Ocean from TOPEX/Poseidon data during the 1992-1998 period, Clim. Dyn., 15, 205-225, 1999.
12. 2 measurements in the equatorial Pacific Ocean, Tellus, Ser. B, 51, 490-508, 1999.
13. Cane, M. A., and R. J. Patton, A numerical model for low frequency equatorial dynamics, J. Phys. Oceanogr., 14, 1853-1863, 1984.
14. Chambers, D. P., B. D. Tapley, and R. H. Steward, Measuring heat storage changes in the equatorial Pacific: A comparison between TOPEX altimetry and Tropical-Atmosphere-Ocean buoys, J. Geophys. Res., 103, 18,591-18,597, 1998.
15. Chavez, F. P., and R. T. Barber, An estimate of new production in the Equatorial Pacific, Deep Sea Res., Part A, 34, 1229-1243, 1987.
16. Chen, D. K., L. Rothstein, and A. J. Busalacchi, A hybrid vertical mixing scheme and its application to tropical ocean models, J. Phys. Oceanogr., 24, 2156-2179, 1994.
17. Cheney, R. E., N. Doyle, B. C. Douglas, R. Agreen, L. Miller, E. Timmerman, and D. McAdoo, The complete GEOSAT altimeter GDR handbook, NOAA Rep., 79 pp., Natl. Oceanic and Atmos. Admin., Rockville, Maryland, 1991.
18. Clarke, A. J., Why are surface equatorial ENSO winds anomalously westerly under anomalous large-scale convection?, J. Phys. Oceanogr., 7, 1623-1627, 1994.
19. Clarke, A. J., J. Wang, and S. Van Gorder, A simple warm-pool displacement ENSO model, J. Phys. Oceanogr., 30, 1679-1691, 2000.
20. Cronin, M. F., and M. J. McPhaden, Upper ocean salinity balance in the western equatorial Pacific, J. Geophys. Res., 103, 27,567-27,587, 1998.
21. Dandonneau, Y., Seasonal or aperiodic cessation of oligotrophy in the tropical Pacific Ocean, in Toward a Theory on Biological-Physical Interactions in the World Ocean, edited by B. J. Rotchild, pp. 137-156, Kluwer Acad., New-York, 1988.
22. Delcroix, T., Observed surface oceanic and atmospheric variability in the tropical Pacific at seasonal and ENSO timescales: A tentative overview, J. Geophys. Res., 103, 18,611-18,633, 1998.
23. Delcroix, T., and J. Picaut, Zonal displacement of western equatorial Pacific "fresh pool," J. Geophys. Res., 103, 1087-1098, 1998.
24. Delcroix, T., G. Eldin, M.-H. Radenac, J. Toole, and E. Firing, Variations of the western equatorial Pacific Ocean, 1986-1988, J. Geophys. Res., 97, 5423-5447, 1992.
25. Delcroix, T., G. Eldin, M. McPhaden, and A. Morliere, Effects of westerly wind bursts upon the western equatorial Pacific Ocean, February-April 1991, J. Geophys. Res., 98, 16,379-16,385, 1993.
26. Delcroix, T., J.-P. Boulanger, F. Masia, and C. Menkes, Geosat-derived sea-level and surface-current anomalies in the equatorial Pacific, during the 1986-1989 El Niño and La Niña, J. Geophys. Res., 99, 25,093-25,107, 1994.
27. Delcroix, T., C. Hénin, V. Porte, and P. Arkin, Precipitation and sea-surface salinity in the tropical Pacific ocean, Deep Sea Res., Part I, 43, 1123-1141, 1996.
28. Delcroix, T., B. Dewitte, Y. du Penhoat, F. Masia, and J. Picaut, Equatorial waves and warm pool displacements during the 1992-1998 ENSO events: Observations and modeling, J. Geophys. Res., 105, 26,045-26,062, 2000.
29. Delecluse, P., G. Madec, M. Imbard, and C. Levy, OPA version 7: General Circulation Model reference manual, Internal Rep. 93/05, 140 pp.. Lab. d'Océanogr. Dyn. et de Climatol., Paris, France, 1993.
30. Deser, C., and J. M. Wallace, Large-scale atmospheric circulation features of warm and cold episodes in the tropical Pacific, J. Clim., 3, 1224-1281, 1990.
31. Dewitte, B., G. Reverdin, and C. Maes, Vertical structure of an OGCM simulation of the equatorial Pacific in 1985-1995, J. Phys. Oceanogr., 29, 1542-1570, 1999.
32. du Penhoat, Y., T. Delcroix, and J. Picaut, Interpretation of Kelvin/Rossby waves in the equatorial Pacific from model-Geosat data intercomparison during the 1986-1987 El Niño, Oceanol. Acta, 15, 545-554, 1992.
33. Doulman, D. J., Development and expansion of the tuna purse seine fishery, in Tuna Issues and Perspectives in the Pacific Islands Region., edited by D. J. Doulman, East-West Center, Univ. of Hawaii at Manoa, Honolulu, 133-160, 1987.
34. Eldin, G., M.-H. Radenac, and M. Rodier, Physical and nutrient variability in the upper equatorial Pacific associated with westerly wind forcing and wave activity in October 1994, Deep-Sea Res., Part II, 44, 1783-1800, 1997.
35. 2 accumulation, Nature, 398, 597-601, 1999.
36. Fonteneau, A., Atlas of tropical tuna fisheries, world catches and environment, in ORSTOM Editions, Paris, 192 pp., Institut de recherche pour le Développement, Paris, 1997.
37. Frankignoul, C., F. Bonjean, and G. Reverdin, Interannual variability of surface currents in the tropical Pacific during 1987-1993, J. Geophys. Res., 101, 3629-3647, 1996.
38. Fu, C., H. Diaz, and J. Fletcher, Characteristics of the response of sea-surface temperature in the central Pacific associated with warm episodes of the southern oscillation, Mon. Weather Rev., 114, 1716-1738, 1986.
39. Gadgil, S., P. V. Joseph, and N. V. Joshi, Ocean-atmosphere coupling over monsoon regions, Nature, 312, 141-143, 1984.
40. Geisler, J. E., M. L. Blackmon, G. T. Bates, and S. Munoz, Sensitivity of January climate response to the magnitude and position of equatorial Pacific sea surface temperature anomalies, J. Atmos. Sci., 42, 1037-1149, 1985.
41. Gent, P., and M. A. Cane, A reduced Gravity, primitive equation model of the upper equatorial ocean, J. Comput. Phys., 81, 444-480, 1989.
42. Gill, A. E., Changes in thermal structure of the equatorial Pacific during the 1972 El Niño as revealed by bathythermograph observations, J. Phys. Oceanogr., 12, 1373-1387, 1983.
43. Godfrey J. S., R. A. Houze, R. H. Johnson, R. Lukas, J.-L. Redelsperger, A. Sumi, and R. Weller R, Coupled Ocean-Atmosphere Response Experiment (COARE): An interim report, J. Geophys. Res,., 103, 14,395-14,450, 1998.
44. Graham, N. E., and T. P. Barnett, Sea surface temperature, sea surface wind divergence, and convection over tropical oceans, Science, 238, 657-659, 1987.
45. Graham, N. E., T. P. Barnett, and R. Wilde, On the roles of tropical and midlatitude SSTs in forcing interannual to interdecadal variability in the winter Northern Hemisphere circulation, J. Clim., 7, 1416-1441, 1994.
46. Guilderson, T. P., and D. P. Schrag, Abrupt shift in subsurface temperatures in the tropical Pacific associated with changes in El Niño, Science, 2981, 240-243, 1998.
47. Hansen D. V., and M. S. Swenson, Mixed layer circulation during EqPac and some thermochemical implications for the equatorial cold tongue, Deep Sea Res., Part II, 43, 707-724, 1996.
48. Harrison D. E., and N. K. Larkin, El Niño-Southern oscillation sea surface temperature and wind anomalies, 1946-1993, Rev. Geophys., 36, 353-399, 1998.
49. Hayes, S. P., L. J. Mangum, J. Picaut, A. Sumi, and K. Takeuchi, TOGA-TAO: A moored array for real-time measurements in the tropical Pacific Ocean, Bull. Am. Meteorol. Soc., 72, 339-347, 1991.
50. Hénin, C., and J. Grelet, A merchant ship thermosalinograph network in the tropical Pacific, Deep-Sea Res., Part II, 43, 1833-1855, 1996.
51. Hénin, C., Y. du Penhoat, and M. Ioualalen, Observations of sea-surface salinity in the western Pacific fresh pool: Large scale changes during 1992-1995, J. Geophys. Res., 103, 7523-7536, 1998.
52. Hirst, A. C., Slow instabilities in tropical ocean basin-global atmosphere models, J. Atmos. Sci., 45, 830-852, 1988.
53. Ho, C.-R., X.-H. Yan, and Q. Zheng, Satellite observations of upper-layer variabilities in the western Pacific warm pool, Bull. Am. Meteorol. Soc., 76, 669-679, 1995.
54. Hoerling, M. P., A. Kumar, and M. Zhong, El Niño, La Niña, and the nonlinearities of their teleconnections, J. Clim., 10, 1769-1786, 1997.
55. 2) in the central and western equatorial Pacific, west of 160° W, Geophys. Res. Lett., 23, 1781-1784, 1996.
56. Kessler, W. S., M. J. McPhaden, and K. M. Weickmann, Forcing of intraseasonal Kelvin waves in the equatorial Pacific, J. Geophys. Res., 100, 10,613-10,631, 1995.
57. Kuroda, Y., and M. J. McPhaden, Variability in the western equatorial Pacific Ocean during Japanese Pacific Climate Study cruises in 1989 and 1990, J. Geophys. Res., 98, 4747-4759, 1993.
58. Lau, K.-M., and H. Weng, Interannual, decadal-interdecadal, and global warming signals in sea surface temperature during 1955-97, J. Clim., 12, 1257-1267, 1999.
59. Le Borgne, R., and M. Rodier, Net Zooplankton and the biological pump: A comparison between the oligotrophic and mesotrophic equatorial Pacific, Deep Sea Res., Part II, 44, 2003-2023, 1997.
60. Le Borgne, R., M. Rodier, and G. Eldin, FLUPAC cruise focuses on ocean carbon cycle, U. S. JGOFS Newsl., 9-11, January 1995.
61. Legler, D. M., and J. J. O'Brien, Atlas of the Tropical Pacific Wind Stress Climatology 1971-1980, 182 pp., Dep. of Meteorol., Florida State Univ., Tallahassee, 1984.
62. Lehodey P., M. Bertignac, J. Hampton, A. Lewis, and J. Picaut, El Niño Southern Oscillation and tuna in the western Pacific, Nature, 389, 715-718, 1997.
63. Lehodey, P., J.-M. Andre, M. Bertignac, J. Hampton, A. Stoens, C. Menkes, L. Memery, and N. Grima, Predicting skipjack tuna forage distributions in the equatorial Pacific using a coupled dynamical bio-geochemichal model, Fish. Oceanogr., 7, 317-325, 1998.
64. Lemasson, L., and B. Piton, Anomalie dynamique de la surface de la mer le long de l'équateur dans l'océan Pacifique, Cah. ORSTOM, Ser. Oceanogr., 6, 39-45, 1968.
65. Lindzen, R., and S. Nigam, On the role of sea surface temperature gradients in forcing low-level winds and convergence in the tropics, J. Atmos. Sci., 44, 2418-2436, 1987.
66. Liu, T., and C. Gautier, Thermal forcing on the tropical Pacific from satellite data, J. Geophys. Res., 95, 13,209-13,217, 1990.
67. Liu, W. T., A. Z. Zhang, and J. K. B., Bishop, Evaporation and solar irradiance as regulators of sea-surface temperature in annual and interannual changes, J. Geophys. Res., 99, 12,623-12,637, 1994.
68. Lukas, R., and E. Lindström, The mixed layer of the western equatorial Pacific Ocean, J. Geophys. Res., 96, 3343-3457, 1991.
69. Lukas, R., and P. Webster, TOGA-COARE, Tropical Ocean Global Atmosphere program and Coupled Ocean Atmosphere Response Experiment, Oceanus, 35, 62-65, 1992.
70. Maes, C., G. Madec, and P. Delecluse, Sensitivity of an equatorial Pacific OGCM to the lateral diffusion, Mon. Weather Rev., 125, 958-971, 1997.
71. Maes, C., P. Delecluse, and G. Madec, Impact of westerly wind bursts on the warm pool of the TOGA-COARE domain in an OGCM, Clim. Dyn., 14, 55-70, 1998.
72. Maes, C., D. Behringer, R. W. Reynolds, and M. Ji, Retrospective analysis of the salinity variability in the western tropical Pacific Ocean using an indirect minimization approach, J. Atmos. Oceanic Technol., in press, 2000.
73. Mangum, L. J., S. P. Hayes, J. M. Toole, Z. Wang, S. Pu, and D. Hu, Thermohaline structure and zonal pressure gradient in the western equatorial Pacific, J. Geophys. Res., 95, 7279-7288, 1990.
74. Mantua N. J., and D. S. Battisti, Evidence for the delayed oscillator mechanism for ENSO: The observed oceanic Kelvin mode in the far western Pacific, J. Phys. Oceanogr., 24, 691-699, 1994.
75. McCreary, J. P., Eastern tropical ocean response to changing wind systems with application to El Niño, J. Phys. Oceanogr., 6, 632-645, 1976.
76. McCreary, J. P., Equatorial beams, J. Mar. Res., 42, 395-430, 1984.
77. McPhaden, M., TOGA-TAO and the 1991-93 El Niño Southern Oscillation event, Oceanog., 6, 36-44, 1993.
78. McPhaden, M. J., and J. Picaut, El Niño-Southern Oscillation displacement of the western equatorial Pacific warm pool, Science, 250, 1385-1388, 1990.
79. McPhaden, M. J., and B. A. Taft, On the dynamics of seasonal to intraseasonal variability in the eastern equatorial Pacific, J. Phys. Oceanogr., 18, 1713-1732, 1988.
80. McPhaden, M. J., and J. Yu, Equatorial waves and the 1997-98 El Niño, Geophys. Res. Lett., 26, 2961-2964, 1999.
81. McPhaden M. J., F. Bahr, Y. du Penhoat, E. Firing, S. P. Hayes, P. P. Niiler, P. L. Richardson, and J. M. Toole, The response of the western equatorial Pacific Ocean to westerly wind bursts during November 1989 to January 1990, J. Geophys. Res., 97, 14,289-14,303, 1992.
82. McPhaden, M. J., et al., The tropical ocean global atmosphere observing system: A decade of progress, J. Geophys. Res., 103, 14,169-14,240, 1998.
83. Murtugudde, R. G., and A. J. Busalacchi, Salinity effects in a tropical ocean model, J. Geophys. Res., 103, 3283-3300, 1998.
84. Murtugudde, R. G., S. R. Signorini, J. R. Christian, A. J. Busalacchi, C. R. McLain, and J. Picaut, Ocean color variability of the tropical Indo-Pacific basin observed by SeaWiFS during 1997-98, J. Geophys. Res., 104, 18,351-18,366, 1999.
85. Neelin, J. D., D. S. Battisti, and A. C. Hirst, ENSO theory, J. Geophys. Res., 103, 14,261-14,290, 1998.
86. Palmer, T., and D. Mansfield, Response of two atmospheric general circulation models to sea surface temperature anomalies in the tropical east and west Pacific, Nature, 310, 483-485, 1984.
87. Perigaud, C., and B. Dewitte, El Niño-La Niña events simulated with Cane and Zebiak's model and observed with satellite or in situ data, part I: Model data comparison, J. Clim., 9, 66-84, 1996.
88. Philander, S. G. H., El Niño, La Niña, and the Southern Oscillation, 293 pp., Academic, San Diego, Calif., 1990.
89. Philander, S. G. H., and R. C. Pacanowski, The generation of equatorial currents, J. Geophys. Res., 85, 1123-1136, 1980.
90. Picaut, J., and R. Tournier, Monitoring the 1979-1985 equatorial Pacific current transports with expendable bathythermograph data, J. Geophys. Res., 100, 3263-3277, 1991.
91. Picaut, J., and T. Delcroix, Equatorial wave sequence associated with the warm pool displacement during the 1986-1989 El Niño and La Niña, J. Geophys. Res., 96, 18,398-18,408, 1995.
92. Picaut, J., A. J. Busalacchi, M. J. McPhaden, and B. Camusat, Validation of the geostrophic method for estimating zonal currents at the equator from Geosat altimeter data, J. Geophys. Res., 95, 3015-3024, 1990.
93. Picaut, J., M. Ioualalen, C. Menkes, T. Delcroix, and M. J. McPhaden, Mechanism of the zonal displacements of the Pacific Warm Pool, implications for ENSO, Science, 274, 1486-1489, 1996.
94. Picaut, J., F. Masia, and Y. du Penhoat, An advective-reflective conceptual model for the oscillatory nature of the ENSO, Science, 277, 663-666, 1997.
95. Poulain, P. M., Estimates of horizontal divergence and vertical velocity in the equatorial Pacific, J. Phys. Oceanogr., 23, 601-607, 1993.
96. Ralph, E. A., K. Bi, P. P. Niiler, and Y. du Penhoat, A Lagrangian description of the western equatorial Pacific response to the wind burst of December 1992, J. Clim., 10, 1706-1721, 1997.
97. Reverdin, G., C. Frankignoul, E. Kestenare, and M. J. McPhaden, A climatology of the seasonal currents in the equatorial Pacific, J. Geophys. Res., 99, 20,323-20,344, 1994.
98. Reynolds, D., and T. Smith, Improved global sea surface temperature analyses using optimum interpolation, J. Clim., 7, 929-948, 1994.
99. Roemmich, D., M. Morris, W. R. Young, and J.-R. Donguy, Fresh equatorial jets, J. Phys. Oceanogr., 24, 540-558, 1994.
100. Schneider, E. K., B. Huang, and J. Shukla, Ocean wave dynamics and El Niño, J. Clim., 8, 2415-2439, 1995.
101. Schneider N., T. Barnett, M. Latif, and T. Stockdale, Warm pool physics in a coupled GCM, J Clim., 9, 219-239, 1996.
102. Schopf, P. S., and M. J. Suarez, Vacillations in a coupled ocean-atmosphere model, J. Atmos. Sci., 45, 549-566, 1988.
103. Seager, R., M. Blumenthal, and Y. Kushnir, An advective atmospheric mixed layer model for ocean modeling purposes; Global simulation of surface heat fluxes, J. Clim., 8, 1951-1964, 1995.
104. Smith, T. M., R. W. Reynolds, R. E. Livezey, and D. C. Stokes, Reconstruction of historical sea surface temperature using empirical orthogonal functions, J. Climate, 9, 1403-1420, 1996.
105. Shinoda, T., and R. Lukas, Lagrangian mixed layer modelling of the western equatorial Pacific, J. Geophys. Res., 100, 2523-2541, 1995.
106. Sprintall, J., and M. J. McPhaden, Surface layer variations observed in multiyear time series measurements from the western equatorial Pacific, J. Geophys. Res., 101, 22,513-22,533, 1994.
107. Sprintall, J., and M. Tomczak, Evidence of the barrier layer in the surface layer of the tropics, J. Geophys. Res., 97, 7305-7316, 1992.
108. Stoens A., et al., The coupled physical-new production system in the equatorial Pacific during the 1992-1995 El Niño, J. Geophys. Res., 104, 3323-3339, 1999.
109. Trenberth, K., and T. Hoar, The 1990-1995 El Niño-Southern Oscillation event: Longest on record, Geophys. Res. Lett., 23, 57-60, 1996.
110. Vialard, J., and P. Delecluse, An OGCM study for the TOGA decade, part I, Role of salinity in the physics of the western Pacific fresh pool, J. Phys. Oceanogr., 28, 1071-1088, 1998a.
111. Vialard, J., and P. Delecluse, An OGCM study for the TOGA decade, part II, Barrier-layer formation and variability, J. Phys. Oceanogr., 28, 1089-1106, 1998b.
112. Vialard, J., C. Menkes, J.-P. Boulanger, P. Delecluse, E. Guilyardi, M. J. McPhaden, and G. Madec, A model study of oceanic mechanisms affecting equatorial sea surface temperature during the 1997-98 El Niño, J. Phys. Oceanogr., in press, 2000.
113. Wallace, J. M., Effect of deep convection on the regulation of tropical sea surface temperature, Nature, 357, 230-231, 1992.
114. Wang, W., and M. J. McPhaden, The surface layer heat balance in the equatorial Pacific Ocean, part II, Interannual variability, J. Phys. Oceanogr., in press, 2000.
115. Webster, P. J., and R. Lukas, TOGA-COARE: The Coupled Ocean Atmosphere Response Experiment, Bull. Am. Meteorol Soc., 9, 1377-1416, 1992.
116. Wu, Z., E. S. Sarachik, and D. S. Battisti, Thermally forced surface winds on an equatorial beta-plane, J. Atmosph. Sci., 56, 2029-2037, 1999.
117. Wyrtki, K., El Niño - the dynamic response of the equatorial Pacific ocean to atmospheric forcing, J. Phys. Oceanogr., 5, 572-584, 1975.
118. Wyrtki, K., The slope of sea level along the equator during the 1982-83 El Niño, J. Geophys. Res., 89, 10,419-10,424, 1984.
119. Wyrtki, K., Water displacements in the Pacific and the genesis of El Niño cycles, J. Geophys. Res., 90, 7129-7132, 1985.
120. Xie, P., and P. Arkin, Analyses of global monthly precipitation using gauge observations, satellite estimates, and numerical model predictions, J. Clim., 9, 840-858, 1996.
121. Yan, X.-H., Y. He, W. T. Liu, Q. Zheng, and C.-H. Ho, Centroid movement of the western Pacific warm pool during the three recent El Niño-Southern Oscillation events, J. Phys. Oceanogr., 27, 837-845, 1997.
122. Yang, S., K.-M. Lau, and P. S. Schopf, Sensitivity of the tropical Pacific Ocean to precipitation-induced freshwater flux, Clim. Dyn., 15, 737-750, 1999.
123. Yoder J. A., S. G. Ackleson, R. T. Barber, P. Flament, and W. M. Balch, A line in the sea, Nature, 371, 689-692, 1994.
124. You, Y., Salinity variability and its role in the barrier layer formation during TOGA-COARE, J. Phys. Oceanogr., 25, 2778-2807, 1995.
125. Zebiak, S. E., and M. A. Cane, A model of El Niño Southern Oscillation, Mon. Weather Rev., 115, 2262-2278, 1987.