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The Role of Atmosphere and Ocean Physical Processes in Enso : Volume 6, Issue 3 (09/09/2009)

By Philip, S. Y.

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Book Id: WPLBN0004021073
Format Type: PDF Article :
File Size: Pages 47
Reproduction Date: 2015

Title: The Role of Atmosphere and Ocean Physical Processes in Enso : Volume 6, Issue 3 (09/09/2009)  
Author: Philip, S. Y.
Volume: Vol. 6, Issue 3
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2009
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Van Oldenborgh, G. J., Collins, M., J. M. Van Den Hur, B. J., & Philip, S. Y. (2009). The Role of Atmosphere and Ocean Physical Processes in Enso : Volume 6, Issue 3 (09/09/2009). Retrieved from http://www.ebooklibrary.org/


Description
Description: Royal Netherlands Institute of Meteorology, De Bilt, The Netherlands. We examine the behaviour of the El Niño – Southern Oscillation (ENSO) in an ensemble of global climate model simulations with perturbations to parameters in the atmosphere and ocean components respectively. The influence of the uncertainty in these parametrisations on ENSO are investigated systematically. The ensemble exhibits a range of different ENSO behaviour in terms of the amplitude and spatial structure of the SST variability. The nature of the individual feedbacks that operate within the ENSO system are diagnosed using an Intermediate Complexity Model (ICM), which has been used previously to examine the diverse ENSO behaviour of the CMIP3 multi-model ensemble. Unlike in that case, the ENSO in these perturbed physics experiments is not principally controlled by variations in the mean climate state. Rather the parameter perturbations influence the ENSO characteristics by modifying the coupling feedbacks within the cycle. The associated feedbacks that contribute most to the ensemble variations are the response of SST to local wind variability and damping, followed by the response of SST to thermocline anomalies and the response of the zonal wind stress to those SST anomalies. Atmospheric noise amplitudes and oceanic processes play a relatively minor role.

Summary
The role of atmosphere and ocean physical processes in ENSO

Excerpt
AchutaRao, K. and Sperber, K. R.: ENSO simulation in coupled ocean-atmosphere models: are the current models better?, Climate Dyn., 27, 1–15, 2006.; AchutaRao, K. and Sperber, K. R.: Simulation of the El Niõ Southern Oscillation: Results from the Coupled Model Intercomparison Project, Climate Dyn., 19, 191–209, 2002.; Annan, J. D., Hargreaves, J. C., Ohgaito, R., Abe-Ouchi, A., and Emori, S.: Efficiently constraining climate sensitivity with ensembles of paleoclimate simulations, Scientific on-line letters on the atmosphere, 1, 181–184, 2005.; Burgers, G., Balmaseda, M. A., Vossepoel, F. C., van Oldenborgh, G. J., and van Leeuwen, P. J.: Balanced Ocean-Data Assimilation near the Equator, J. Phys.\ Oceanogr., 32, 2509–2529, 2002.; Burgers, G. J. H. and van Oldenborgh, G. J.: On the impact of local feedbacks in the Central Pacific on the ENSO cycle, J. Climate, 16, 2396–2407, 2003.; Capotondi, A., Wittenberg, A., and Masina, S.: Spatial and temporal structure of tropical Pacific interannual variability in 20th century coupled simulations, Ocean Modeling, 15, 274–298, 2006.; Clarke, A. J.: Why Are Surface Equatorial ENSO Winds Anomalously Westerly under Anomalous Large-Scale Convection?, J. Climate, 7, 1623–1627, 1994.; Collins, M.: Ensembles and probabilities: a new era in the prediction of climate change, Philosophical Transactions of the Royal Society A, 365 (1857), 1957–1970, 2007.; Collins, M.: An anthropogenic influence on El Niño, Nature Geoscience, in review, 2009.; Collins, M., Tett, S. F. B., and Cooper, C.: The internal climate variability of HadCM3, a version of the Hadley Centre coupled model without flux adjustments, Climate Dyn., 17, 61–81, 2001.; Collins, M., Booth, B., Harris, G., Murphy, J., Sexton, D., and Webb, M.: Towards Quantifying Uncertainty in Transient Climate Change, Climate Dyn., 27 (2-3), 127–147, 2006.; Fedorov, A. V. and Philander, S. G.: A stability analysis of tropical ocean-atmosphere interactions: bridging measurements and theory for El Niño, J. Climate, 14, 3086–3101, 2001.; Gill, A. E.: Some simple solutions for heat induced tropical circulation, Quart. J. Roy. Meteor. Soc., 106, 447–462, 1980.; Gill, A. E.: Atmosphere–Ocean Dynamics, Academic Press, Orlando, 662 pp., 1982.; Gordon, C., Cooper, C., Senior, C. A. and Banks, H., Gregory, J. M. andT. C. Johns, T. C., Mitchell, J. F. B., and A., W. R.: The simulation of SST, sea ice extents and ocean heat transport in a version of the Hadley Centre coupled model without flux adjustments, Climate Dyn., 16, 147–168, 2000.; Guilyardi, E.: El Niño - mean state - seasonal cycle interactions in a multi-model ensemble, Climate Dyn., 26, 329–348, 2006.; Guilyardi, E., Wittenberg, A., Fedorov, A., Collins, M., Wang, C., Capotondi, A., van Oldenborgh G.J., and Stockdale, T.: Understanding El Niño in Ocean-Atmosphere General Circulation Models: progress and challenges, Bull.\ Amer. Met. Soc., 90, 325–340, 2009.; Kirtman, B.: Oceanic Rossby wave dynamics and the ENSO period in a coupled model, J. Climate, 10, 1690–1704, 1997.; Harris, G., Sexton, D., Booth, B., Collins, M., Murphy, J., and Webb, M.: Frequency Distributions of Transient Regional Climate Change from Perturbed Physics Ensembles of General Circulation Model Simulations, Climate Dyn., 27, 357–375, 2006.; Knutti, R., Meehl, G. A., Allen, M. R., and Stainforth, D. A.: Constraining climate sensitivity from the seasonal cycle in surface temperature, J.\ Climate, 19, 4224–4233, 2006.; Lin, J. L.: The Double-{ITCZ} Problem in IPCC AR4 Coupled {GCMs}: Ocean-Atmosphere Feedback Analysis, J. Clim., 20, 4497–4525, 2007.; Lloyd, J., Guilyardi, E., Weller, H., and Slingo, J.: The Role of Atmosphere Feedbacks During ENSO in the CMIP3 Models, Atmos. Sci. Letts., submitted, 2009.; Merryfi

 

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