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  5.     <title>UTas ePrints - Ocean response and feedback to the SST dipole in the Tropical Atlantic</title>
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  13.     <meta content="Joyce, T.M." name="eprints.creators_name" />
  14. <meta content="Frankignoul, C." name="eprints.creators_name" />
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  29. <meta content="Atlantic, SST, dipole, feedback, climate, equatorial" name="eprints.keywords" />
  30. <meta content="The equatorial SST dipole represents a mode of climate variability in the tropical Atlantic Ocean that is
  31. closely tied to cross-equatorial flow in the atmosphere, from the cold to the warm hemisphere. It has been
  32. suggested that this mode is sustained by a positive feedback of the tropical winds on the cross-equatorial SST
  33. gradient. The role, if any, of the tropical ocean is the focus of this investigation, which shows that at the latitudes
  34. of the SST signal (centered on 108N/S) there is a weak positive feedback suggested in data from the last half
  35. century, that the cross-equatorial wind stress is closely coupled to this SST gradient on monthly time scales
  36. with no discernable lag, and that the period from January to June is the most active period for coupling. Northward
  37. (southward) anomalies of cross-equatorial wind stress are associated with a substantial negative (positive) wind
  38. stress curl. This wind system can thus drive a cross-equatorial Sverdrup transport in the ocean from the warm
  39. to the cold side of the equator (opposite the winds) with a temporal lag of only a few months. The oceanic
  40. observations of subsurface temperature and a numerical model hindcast also indicate a clear relationship between
  41. this mode of wind-driven variability and changes in the zonal transport of the North Equatorial Countercurrent.
  42. It is estimated that the time-dependent oceanic flow is capable of providing a significant contribution to the
  43. damping of the SST dipole but that external forcing is essential to sustaining the coupled variability." name="eprints.abstract" />
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  55. <meta content="Capotondi, A., and M. A. Alexander, 2001: Rossby waves in the
  56. tropical North Pacific and their role in decadal thermocline variability.
  57. J. Phys. Oceanogr., 31, 3496-3515.
  58. Carton, J. A., X. Cao, B. S. Giese, and A. M. da Silva, 1996: Decadal
  59. and interannual SST variability in the tropical Atlantic. J. Phys.
  60. Oceanogr., 26, 1165-1175.
  61. Carton, J. A., M. Chepurin, X. Cao, and B. Giese, 2000: A simple ocean data
  62. assimilation analysis of the global upper ocean, 1950-95. Part
  63. I: Methodology. J. Phys. Oceanogr., 30, 294-309.
  64. Chang, P., L. Ji, and H. Li, 1997: A decadal climate variation in the
  65. tropical Atlantic Ocean from thermodynamics and air-sea interactions.
  66. Nature, 385, 516-518.
  67. Chang, P., R. Saravanan, L. Ji, and G. C. Hegerl, 2000: The effect of local
  68. sea surface temperatures on the atmospheric circulation over the
  69. tropical Atlantic sector. J. Climate, 13, 2195-2216.
  70. Chang, P., L. Ji, and R. Saravanan, 2001: A hybrid coupled model study
  71. of tropical Atlantic variability. J. Climate, 14, 361-390.
  72. Clarke, A. J., and A. Lebedev, 1997: Interannual and decadal changes
  73. in equatorial wind stress in the Atlantic, Indian, and Pacific
  74. Oceans and the Eastern Ocean Coastal Response. J. Climate, 10,
  75. 1722-1729.
  76. Conkright, M. E., and Coauthors, 1998: Temperature. Vol. 5, World
  77. Ocean Database 1998, CD-ROM Scientific Dataset, Version 1.0,
  78. National Oceanographic Data Center Internal Rep. 14.
  79. Czaja, A., P. van der Vaart, and J. Marshall, 2002: A diagnostic study
  80. of the role of remote forcing in tropical Atlantic variability. J.
  81. Climate, 15, 3280-3290.
  82. Dommenget, D., and M. Latif, 2000: Interannual to decadal variability
  83. in the tropical Atlantic. J. Climate, 13, 777-792.
  84. Doney, S. C., S. Yeager, G. Danabasoglu, W. G. Large, and J. C.
  85. McWilliams, 2003: Modeling global oceanic interannual variability
  86. (1958-1997): Simulation design and model-data evaluation.
  87. NCAR Tech. Rep. NCAR/TN-4521STR, 48 pp.
  88. Enfield, D. B., and D. A. Mayer, 1997: Tropical Atlantic SST variability
  89. and its relation to El Nino-Southern Oscillation. J. Geophys.
  90. Res., 102, 929-945.
  91. Frankignoul, C., 1999: A cautionary note on the use of statistical
  92. atmospheric models in the middle latitudes: Comments on &quot;Decadal
  93. variability in the North Pacific as simulated by a hybrid
  94. coupled model.&quot; J. Climate, 12, 1871-1872.
  95. Frankignoul, C., and K. Hasselmann, 1977: Stochastic climate models. Part II:
  96. Application to sea-surface temperature anomalies and thermocline
  97. variability. Tellus, 29, 284-305.
  98. Frankignoul, C., and E. Kestenare, 2002: The surface heat flux feedback. Part
  99. 1: Estimates from observations in the Atlantic and the North
  100. Pacific. Climate Dyn., 19, 633-647.
  101. Frankignoul, C., E. Kestenare, M. Botzet, A. F. Carril, H. Drange, A. Pardens, L. Terray,
  102. and R. Sutton, 2004: An intercomparison between the surface
  103. heat flux feedback in five coupled models, COADS, and the
  104. NCEP reanalysis. Climate Dyn., 22, 373-388.
  105. Gent, P. R., and J. C. McWilliams, 1990: Isopycnal mixing in ocean
  106. circulation models. J. Phys. Oceanogr., 20, 150-155.
  107. Gent, P. R., J. Willebrand, T. J. McDougall, and J. C. McWilliams, 1995:
  108. Parameterizing eddy-induced tracer transports in ocean circulation
  109. models. J. Phys. Oceanogr., 25, 463-474.
  110. Gent, P. R., F. O. Bryan, G. Danabasoglu, S. C. Doney, W. R. Holland, W.
  111. G. Large, and J. C. McWilliams, 1998: The NCAR Climate
  112. System Model global ocean component. J. Climate, 11, 1287-
  113. 1306.
  114. Hanawa, K., P. Rual, R. Bailey, A. Sy, and M. Szabados, 1995: A
  115. new depth-time equation for Sippiocan TSK T-7, T-6, and T-4
  116. expendable bathythermographs (XBT). Deep-Sea Res., A8,
  117. 1423-1451.
  118. Hastenrath, S., 1990: Decadal-scale changes of the circulation in the
  119. tropical Atlantic sector associated with Sahel drought. Int. J.
  120. Climatol., 10, 459-472.
  121. Hellerman, S., and M. Rosenstein, 1983: Normal monthly wind stress
  122. over the World Ocean with error estimates. J. Phys. Oceanogr.,
  123. 13, 1093-1104.
  124. Houghton, R. W., 1991: The relationship of sea surface temperature to
  125. thermocline depth at annual and interannual time scales in the
  126. tropical Atlantic Ocean. J. Geophys. Res., 96, 15 173-15 185.
  127. Houghton, R. W., and Y. Tourre, 1992: Characteristics of low-frequency sea surface temperature fluctuations in the tropical Atlantic. J. Climate,
  128. 5, 765-771.
  129. Joyce, T. M., 1988: On the wind-driven cross-equatorial flow in the
  130. Atlantic Ocean. J. Phys. Oceanogr., 18, 793-799.
  131. Joyce, T. M., C. Deser, and M. A. Spall, 2000: The relation between decadal
  132. variability of subtropical mode water and the North Atlantic
  133. Oscillation. J. Climate, 13, 2550-2569.
  134. Kalnay, E., and Coauthors, 1996: The NCEP/NCAR 40-Year Reanalysis
  135. Project. Bull. Amer. Meteor. Soc., 77, 437-471.
  136. Katz, E. J., 1993: An interannual study of the Atlantic North Equatorial
  137. Countercurrent. J. Phys. Oceanogr., 23, 116-123.
  138. Kushnir, Y., R. Seager, and J. Miller, 2002: A simple coupled model
  139. of tropical Atlantic decadal climate variability. Geophys. Res.
  140. Lett., 29, 2133, doi:10.1029/2002GL015874.
  141. Large, W. G., and P. R. Gent, 1999: Validation of vertical mixing in
  142. an equatorial ocean model using large eddy simulations and
  143. observations. J. Phys. Oceanogr., 29, 449-464.
  144. Large, W. G., G. Danabasoglu, and S. Doney, 1997: Sensitivity to surface
  145. forcing and boundary layer mixing in a global ocean model:
  146. Annual-mean climatology. J. Phys. Oceanogr., 27, 2418-2447.
  147. Large, W. G., G. Danabasoglu, J. C. McWilliams, P. R. Gent, and F. O. Bryan, 2001:
  148. Equatorial circulation of a global ocean climate model with anisotropic
  149. horizontal viscosity. J. Phys. Oceanogr., 31, 518-536.
  150. Mehta, V. M., 1998: Variability of the tropical ocean surface temperatures
  151. at decadal-multidecadal timescales. Part I: The Atlantic
  152. Ocean. J. Climate, 11, 2351-2375.
  153. Melice, J.-L., and J. Servain, 2003: The tropical Atlantic meridional
  154. SST gradient index and its relationships with the SOI, NAO,
  155. and Southern Ocean. Climate Dyn., 20, 447-464.
  156. Merle, J., and S. Arnault, 1985: Seasonal variability of the surface
  157. dynamic topography in the tropical Atlantic Ocean. J. Mar. Res.,
  158. 43, 267-288.
  159. Moura, D. W., and J. Shukla, 1981: On the dynamics of droughts in
  160. northeast Brazil: Observations, theory and numerical experiments
  161. with a general circulation model. J. Atmos. Sci., 38, 2653-
  162. 2675.
  163. Nobre, P., and J. Shukla, 1996: Variations of sea surface temperature,
  164. wind stress, and rainfall over the tropical Atlantic and South
  165. America. J. Climate, 9, 2464-2479.
  166. Philander, S. G., 1989: El Nino, La Nina, and the Southern Oscillation.
  167. Academic Press, 293 pp.
  168. Qiu, B., and T. M. Joyce, 1992: Interannual variability in the midand
  169. low-latitude western North Pacific. J. Phys. Oceanogr., 22,
  170. 1062-1079.
  171. Reynolds, R. W., and T. M. Smith, 1994: Improved global sea surface
  172. temperature analysis using optimum interpolation. J. Climate, 7,
  173. 929-948.
  174. Ruiz-Barradas, A., J. A. Carton, and S. Nigam, 2000: Structure of
  175. interannual-to-decadal climate variability in the tropical Atlantic
  176. sector. J. Climate, 13, 3285-3297.
  177. Seager, R., Y. Kushnir, P. Chang, N. Naik, J. Miller, andW. Hazeleger,
  178. 2001: Looking for the role of the ocean in tropical Atlantic
  179. decadal climate variability. J. Climate, 14, 638-655.
  180. Servain, J., 1991: Simple climatic indices for the tropical Atlantic Ocean
  181. and some applications. J. Geophys. Res., 96, 15 137-15 146.
  182. Servain, J., G. Clauzet, and I. C. Wainer, 2003: Modes of tropical Atlantic
  183. climate variability observed by PIRATA. Geophys. Res. Lett.,
  184. 30, 8003, doi:10, 1029/22002GL015124.
  185. Smith, S. R., D. M. Legler, and K. V. Verzone, 2001: Quantifying
  186. uncertaintities in NCEP reanalysis using high-quality research
  187. vessel observations. J. Climate, 14, 4062-4072.
  188. Sutton, R. T., S. P. Jewson, and D. P. Rowell, 2000: The elements of
  189. climate variability in the tropical Atlantic region. J. Climate, 13,
  190. 3261-3284.
  191. White, W. B., 1995: Design of a global observing system for the
  192. gyre-scale upper ocean temperature variability. Progress in
  193. Oceanography, Vol. 36, Pergamon, 169-217.
  194. Xie, S.-P., 1999: A dynamic ocean-atmosphere model of the tropical
  195. Atlantic decadal variability. J. Climate, 12, 64-70.
  196. Yang, J., 1999: A linkage for decadal climate variations in Labrador
  197. Sea and the tropical Atlantic Ocean. Geophys. Res. Lett., 26,
  198. 1023-1026.
  199. Zhou, Z., and J. Carton, 1998: Latent heat flux and interannual variability
  200. of the coupled atmosphere-ocean system. J. Atmos. Sci.,
  201. 55, 494-501." name="eprints.referencetext" />
  202. <meta content="Joyce, T.M. and Frankignoul, C. and Yang, J. and Phillips, Helen E. (2004) Ocean response and feedback to the SST dipole in the Tropical Atlantic. Journal of Physical Oceanography, 34 (11). pp. 2525-2540. ISSN 1520-0485" name="eprints.citation" />
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  211. <meta content="The equatorial SST dipole represents a mode of climate variability in the tropical Atlantic Ocean that is
  212. closely tied to cross-equatorial flow in the atmosphere, from the cold to the warm hemisphere. It has been
  213. suggested that this mode is sustained by a positive feedback of the tropical winds on the cross-equatorial SST
  214. gradient. The role, if any, of the tropical ocean is the focus of this investigation, which shows that at the latitudes
  215. of the SST signal (centered on 108N/S) there is a weak positive feedback suggested in data from the last half
  216. century, that the cross-equatorial wind stress is closely coupled to this SST gradient on monthly time scales
  217. with no discernable lag, and that the period from January to June is the most active period for coupling. Northward
  218. (southward) anomalies of cross-equatorial wind stress are associated with a substantial negative (positive) wind
  219. stress curl. This wind system can thus drive a cross-equatorial Sverdrup transport in the ocean from the warm
  220. to the cold side of the equator (opposite the winds) with a temporal lag of only a few months. The oceanic
  221. observations of subsurface temperature and a numerical model hindcast also indicate a clear relationship between
  222. this mode of wind-driven variability and changes in the zonal transport of the North Equatorial Countercurrent.
  223. It is estimated that the time-dependent oceanic flow is capable of providing a significant contribution to the
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  338.     <h1 class="ep_tm_pagetitle">Ocean response and feedback to the SST dipole in the Tropical Atlantic</h1>
  339.     <p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Joyce, T.M.</span> and <span class="person_name">Frankignoul, C.</span> and <span class="person_name">Yang, J.</span> and <span class="person_name">Phillips, Helen E.</span> (2004) <xhtml:em>Ocean response and feedback to the SST dipole in the Tropical Atlantic.</xhtml:em> Journal of Physical Oceanography, 34 (11). pp. 2525-2540. ISSN 1520-0485</p><p style="margin-bottom: 1em" class="not_ep_block"></p><table style="margin-bottom: 1em" class="not_ep_block"><tr><td valign="top" style="text-align:center"><a href="http://eprints.utas.edu.au/813/1/Joyce2004jpo.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" class="ep_doc_icon" border="0" /></a></td><td valign="top"><a href="http://eprints.utas.edu.au/813/1/Joyce2004jpo.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />1457Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input accept-charset="utf-8" value="809" name="docid" type="hidden" /><div class=""><input value="Request a copy" name="_action_null" class="ep_form_action_button" onclick="return EPJS_button_pushed( '_action_null' )" type="submit" /> </div></form></td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://dx.doi.org/10.1175/JPO2640.1">http://dx.doi.org/10.1175/JPO2640.1</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">The equatorial SST dipole represents a mode of climate variability in the tropical Atlantic Ocean that is&#13;
  340. closely tied to cross-equatorial flow in the atmosphere, from the cold to the warm hemisphere. It has been&#13;
  341. suggested that this mode is sustained by a positive feedback of the tropical winds on the cross-equatorial SST&#13;
  342. gradient. The role, if any, of the tropical ocean is the focus of this investigation, which shows that at the latitudes&#13;
  343. of the SST signal (centered on 108N/S) there is a weak positive feedback suggested in data from the last half&#13;
  344. century, that the cross-equatorial wind stress is closely coupled to this SST gradient on monthly time scales&#13;
  345. with no discernable lag, and that the period from January to June is the most active period for coupling. Northward&#13;
  346. (southward) anomalies of cross-equatorial wind stress are associated with a substantial negative (positive) wind&#13;
  347. stress curl. This wind system can thus drive a cross-equatorial Sverdrup transport in the ocean from the warm&#13;
  348. to the cold side of the equator (opposite the winds) with a temporal lag of only a few months. The oceanic&#13;
  349. observations of subsurface temperature and a numerical model hindcast also indicate a clear relationship between&#13;
  350. this mode of wind-driven variability and changes in the zonal transport of the North Equatorial Countercurrent.&#13;
  351. It is estimated that the time-dependent oceanic flow is capable of providing a significant contribution to the&#13;
  352. damping of the SST dipole but that external forcing is essential to sustaining the coupled variability.</p></div><table style="margin-bottom: 1em" cellpadding="3" class="not_ep_block" border="0"><tr><th valign="top" class="ep_row">Item Type:</th><td valign="top" class="ep_row">Article</td></tr><tr><th valign="top" class="ep_row">Keywords:</th><td valign="top" class="ep_row">Atlantic, SST, dipole, feedback, climate, equatorial</td></tr><tr><th valign="top" class="ep_row">Subjects:</th><td valign="top" class="ep_row"><a href="http://eprints.utas.edu.au/view/subjects/260403.html">260000 Earth Sciences &gt; 260400 Oceanography &gt; 260403 Physical Oceanography</a></td></tr><tr><th valign="top" class="ep_row">Collections:</th><td valign="top" class="ep_row">UNSPECIFIED</td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">813</td></tr><tr><th valign="top" class="ep_row">Deposited By:</th><td valign="top" class="ep_row"><span class="ep_name_citation"><span class="person_name">Dr Helen E Phillips</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">15 Mar 2007</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">08 Feb 2008 12:19</td></tr><tr><th valign="top" class="ep_row">ePrint Statistics:</th><td valign="top" class="ep_row"><a target="ePrintStats" href="/es/index.php?action=show_detail_eprint;id=813;">View statistics for this ePrint</a></td></tr></table><p align="right">Repository Staff Only: <a href="http://eprints.utas.edu.au/cgi/users/home?screen=EPrint::View&amp;eprintid=813">item control page</a></p>
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