Publications by De-Zheng Sun

Publications by De-Zheng Sun

Publications

Books

  1. Sun, D.-Z. and F. Bryan (eds), 2010: Climate Dynamics: Why Does Climate Vary?". AGU Monograph, 216 pages, AGU.

Journal Articles & Book Chapters

  1. Zhao, Y. and D.-Z. Sun, 2022: ENSO Asymmetry in CMIP6 Models, J. Climate, in press.

  2. Lin, X., Y. Qiu, and D.-Z. Sun, 2019: Thermohaline Structures and Heat/Freshwater Transports of Mesoscale Eddies in the Bay of Bengal Observed by Argo and Satellite Data. Remote Sensing, 11, 2989; doi:10.3390/rs11242989

  3. Zhang, L., D.-Z. Sun,, and K.B. Karnuskas, 2019: The role of the Indian Ocean in determining the tropical pacific SSTresponse to radiative forcing in an idealized model. Dynamics of the Atmosphere and Oceans, 86, 1-9. doi: 10.1016/j.dynatmoce.2019.02.003.

  4. Hua, L., D.-Z. Sun, and Y. Yu, 2019: Why Do We Have El Niño: Quantifying A Diabatic and Nonlinear Perspective Using Observations. Climate Dynamics, 52(11), 6705-6717. DOI : 10.1007/s00382-018-4541-4

  5. Chen, L., D.-Z. Sun, L. Wang, T. Li, 2018: A further study on the simulation of cloud radiative feedbacks in the ENSO cycle in the tropical Pacific with a focus on the asymmetry, Asia-Pacific Journal of Atmospheric Sciences, 55 (3), 303-316. doi:10.1007/s13143-018-0064-5.

  6. Chen, L., L. Wang, T. Li, D.-Z. Sun, 2018: Contrasting cloud radiative feedbacks during warm pool and cold tongue El Ninos, Scientific Online Letters on the Atmosphere, 14, 126-131. doi:10.2151/sola.2018-022

  7. Yang, M., G. J. Zhang, and D.-Z. Sun, 2018: Precipitation and Moisture in Four Leading CMIP5 Models: Biases across Large-scale Circulation Regimes and Their Attribution to Dynamic and Thermodynamic Factors. J. Climate, 31, 5089--5016.

  8. Liang, J., X.-Q. Yang, and D.-Z. Sun, 2017: Factors Determining the Asymmetry of ENSO. J. Climate, 30, 6097-6106. DOI: 10.1175/JCLI-D-16-0923.1

  9. Sun, Y., F. Wang, and D.-Z. Sun, 2016: Weak ENSO asymmetry due to weak nonlinear air-sea interaction in CMIP5 climate models. Adv. Atmos. Sci., 33(3), 352-364.

  10. Hua, L., Y. Yu, and D.-Z. Sun, 2015: A Further Study of ENSO Rectification: Results From an OGCM With a Seasonal Cycle. J. Climate, 28, 1362-1382.

  11. Zhang, T. and D.-Z. Sun, 2014: ENSO Asymmetry in CMIP5 models. J. Climate, 27, 4070-4093

  12. Sun, D.-Z., T. Zhang, Y. Sun, and Y. Yu, 2014: Rectification of El Nino-Southern Oscillation into Climate Anomalies of Decadal and Longer Time-scales: Results from Forced Ocean GCM Experiments. J. Climate, 27 , 2545-2561.

  13. Shuai, J., Z. Zhang, D.-Z. Sun, F. Tao, and P. Shi, 2013: ENSO, climate variability and crop yields in China. Clim. Res., 58, 133-148.

  14. Chen, L., Y. Yu, and D.-Z. Sun, 2013: Cloud and Water Vapor Feedbacks To El Nino Warming: Are They Still Biased in CMIP5 Models? J. Climate, 26, 4947-4961

  15. Ogata, T., S.-P. Xie, A. Wittenberg, and D.-Z. Sun, 2013: Interdecadal amplitude modulation of El Nino/Southern Oscillation and its impacts on tropical Pacific decadal variability. J. Climate, 26, 7280-7297.

  16. Sun, Y., D.-Z. Sun, F. Wang, and L. Wu, 2013: The Western Pacific Warmpool and ENSO Asymmetry in CMIP3 Models. Adv. Atmos. Sci., 30, 940-953doi: 10.1007/s00376-012-2161-1.

  17. Sheffield, J., S.J. Camargo, R. Fu, Q. Hu, X. Jiang, N. Johnson, K.B. Karnauskas, J. Kinter, S. Kumar, B. Langenbrunner, E. Maloney, A.a Mariotti, J. E. Meyerson, D. Neelin, Z. Pan, A. Ruiz-Barradas, R Seager; Y. L Serra, D.-Z. Sun, C. Wang, S.-P. Xie, J.Y. Yu, T. Zhang, M. Zhao, 2013: North American Climate in CMIP5 Experiments. Part II: Evaluation of 20th Century Intra-Seasonal to Decadal Variability. J. Climate, 26 (23), 9247-9290.

  18. Liang, J., X.-Q. Yang, and D.-Z. Sun, 2012: The effect of ENSO events on the Tropical Pacific Mean Climate: Insights from an Analytical Model. J. Climate, 25 , 7590-7606.

  19. Eric Guilyardi, Wenju Cai, Mat Collins, Alexey Fedorov, Fei-Fei Jin, Arun Kumar, De-Zheng Sun, Andrew Wittenberg, 2011: New strategies for evaluating ENSO processes in climate models. BAMS, 236, 235-238.

  20. Wu, C., T. Zhou, D.-Z. Sun, Q. Bao, 2011: Water vapor and cloud radiative forcings over the Pacific Ocean simulated by the LASG/IAP AGCM: Sensitivity to convection schemes Advances in Atmospheric Sciences, 28, 809-98.

  21. Zhang, T., M.P. Hoerling, J. Perlwitz, D.-Z. Sun, and D. Murray, 2010 Physics of U.S. surface temperature response to ENSO. J. Climate, 24, 4874-4887.

  22. Sun, D.-Z., and F.O. Bryan, 2010: Preface. "Climate Dynamics: Why Does Climate Vary?". AGU Geophysical Monograph, Edited by D.-Z. Sun and F. Bryan, AGU.

  23. Sun, D.-Z. and F.O. Bryan, 2010: Introduction. page 1-2, "Climate Dynamics: Why Does Climate Vary?". AGU Geophysical Monograph, Edited by D.-Z. Sun and F. Bryan, AGU.

  24. Sun, D.-Z., 2010: The Diabatic and Nonlinear Aspects of El Nino Southern Oscillation: Implications for its Past and Future Behavior. page 79-104. "Climate Dynamics: Why Does Climate Vary?". AGU Geophysical Monograph, Edited by D.-Z. Sun and F. Bryan, AGU.

  25. Wu, C., T. Zhou, R. Yu, and D.-Z.Sun, 2010: Regime behavior in the SST-cloud forcing relationships over the Pacific cold-tongue region. Atmos. Oceanic Sci. Lett., 3, 271-276.

  26. Penland C., D.-Z.Sun, and A. Capontondi, 2010: An Introduction to El Nino and La Nina. page 53--64. "Climate Dynamics: Why Does Climate Vary?". AGU Geophysical Monograph, Edited by D.-Z. Sun and F. Bryan, AGU.

  27. Sura, P. and D.-Z. Sun, 2009: Ocean-Atmosphere Coupling-Preface. Special Issue on Ocean-Atmosphere Coupling, Atmospheric Research, 94 , 1-2(doi:10.1016/j.atmosres.2009.07.003)

  28. Zhang,T.,D.-Z. Sun, R. Neal, and P. Rasch, 2009: An Evaluation of ENSO Asymmetry in the Community Climate System Models: A View from the Subsurface. J.Climate, 22, 5933-5961.

  29. Yu, Y., and D.-Z. Sun, 2009: Response of ENSO and the Mean State of the Tropical Pacific to Extratropical Cooling/Warming: A Study Using the IAP Coupled Model. J. Climate, 22 5902-5917.

  30. Sun, D.-Z., Y. Yu, and T. Zhang, 2009: Tropical Water Vapor and Cloud Feedbacks in Climate Models: A Further Assessment Using Coupled Simulations. J. Climate, 22, 1287-1304.

  31. Zhang, T., and D.-Z. Sun, 2008: What Causes the Excessive Response of the Clear-Sky Greenhouse Effect to El Nin˜o Warming in the NCAR Community Atmosphere Models? J. Geophys. Research, 113, D02108, doi:10.1029/2007JD009247.

  32. Sun, D.-Z., 2007: The Role of ENSO in Regulating its Background State. In "Nonlinear Dynamics in Geosciences", pages 537-555, Springer New York, 604 pages, Edited by J. Elsner and A. Tsonis.

  33. Sun, D.-Z. and T. Zhang 2006: A Regulatory Effect of ENSO on the Time-Mean Thermal Stratification of the Equatorial Upper Ocean. Geophys. Res. Lett., Vol. 33, L07710, doi:10.1029/2005GL025296.

  34. Sun, D.-Z., T. Zhang, C. Covey,S. Klein, W.D. Collins, J.J. Hack, J.T. Kiehl, G.A. Meehl, I.M. Held, and M. Suarez, 2006 : Radiative and Dynamical Feedbacks Over the Equatorial Cold-tongue: Results from Nine Atmospheric GCMs. J. Climate , 19 , 4059-4074.

  35. Zhang, T. and D.-Z. Sun, 2006 :Response of water vapor and clouds to El Nino warming in three NCAR models J. Geophys. Res.,111 , D17103, doi:10.1029/2005JD006700 .

  36. Sun, D.-Z., 2004: The Control of Meridional Differential Heating Over the Level of ENSO activity: A Heat-Pump Hypothesis. page 71--83. In Earth's Climate: The Ocean-Atmosphere Interaction, AGU Geophysical Monograph, Vol. 147, 414 pages. Edited by C. Wang, S.-P. Xie, and J. Carton.

  37. Sun, D.-Z., T. Zhang, and S.-I. Shin, 2004 : The effect of subtropical cooling on the amplitude of ENSO: a numerical study. J. Climate , 17, 3786-3798.

  38. Sun, D.-Z., J. Fasullo, T. Zhang, and A. Roubicek, 2003:On the Radiative and Dynamical Feedbacks over the Equatorial Cold-tongue. J. Climate, 16. 2425-2432

  39. Sun, D.-Z., 2003:A Possible Effect of An Increase in the Warm-pool SST on the Magnitude of El Niño Warming. J. Climate, 16, 185-205

  40. Sun, D.-Z., C. Covey, and R.S. Lindzen, 2001: Vertical correlations of water vapor in GCMs. Geophys. Res. Lett., 28 , 259-262.

  41. Fasullo, J., and D.-Z. Sun , 2001: Radiative sensitivies to tropical water vapor under all-sky conditions. J. Climate, 14, 2798-2807

  42. Sun, D.-Z., 2000b: The heat sources and sinks of the 1986-87 El Niño, J. Climate, 13, 3533-3550.

  43. Sun, D.-Z., 2000a: Global climate change and ENSO: a theoretical framework. El Niño: Historical and Paleoclimatic Aspects of the Southern Oscillation, Multiscale variability and Global and Regional Impacts .443-463. Cambridge: Cambridge University Press, edited by Diaz H. F. and V. Markgraf, 476 pp.

  44. Sun, D.-Z. and K.E. Trenberth, 1998 : Coordinated heat removal from the equatorial Pacific during the 1986-87 El Niño. Geophys. Res. Lett., , 25, 2659-2662

  45. Sun, D.-Z., 1997: El Niño: a coupled response to radiative heating? Geophys. Res. Lett., 24, 2031-2034.

  46. Sun, D.-Z. and Z. Liu, 1996 : Dynamic ocean-atmosphere coupling: a thermostat for the tropics. Science, 272, 1148-1150.

  47. Sun, D.-Z. and I.M. Held, 1996 : A comparison of modeled and observed relationships between interannual variations of water vapor and temperature. J. Climate, 9, 665-675.

  48. Sun, D.-Z. and A.H. Oort, 1995 : Humidity-temperature relationships in the tropical troposphere. J. Climate, 8, 1974-1987.

  49. Sun, D.Z. and R.S. Lindzen, 1994 : A PV view of the zonal mean distribution of temperature and wind in the extratropical troposphere. J. Atmos. Sci., 51, 757-772.

  50. Sun, D.-Z. and R.S. Lindzen, 1993a : Distribution of tropical tropospheric water vapor. J. Atmos. Sci., 50, 1643-1660.

  51. Sun, D.-Z. and R.S. Lindzen, 1993b: Water vapor feedback and the ice age snowline record. Ann. Geophys., 11, 204-215.

  52. Wallace J.M., X. Cheng, and D.-Z. Sun, 1991: Does low-frequency atmospheric variability exhibit regime-like behavior? Tellus, 43 AB, 16-26.

Talks and Lectures (Since 2001)

  1. Factors Determining The Asymmetry of ENSO, 31st Conference on Climate Variability and Change, 2018 AMS Annual Meeting, Austin, TX, 7-11 January 2018.

  2. Factors Determining The Asymmetry of ENSO, Fudan University, Shanghai, China. 15 November 2017.

  3. Why do we have El Nino? Nanjing University, Nanjing, China. 13 November 2017.

  4. Modeling Global Climate Change: Successes and Challenges. Nanjing University, Nanjing, China. 10 November 2017

  5. Why do we have El Nino? Chinese Academy of Sciences, Beijing, China. 27 September 2017.

  6. Modeling Global Climate Change: Successes and Challenges. Tsinghua University, Beijing, China. 20 September 2017

  7. Factors Determining ENSO Asymmetry. Tsinghua University, Beijing, China. 22 September 2017.

  8. Positive Response of ENSO Amplitude to Higher CO2 Forcing is Linked to The Asymmetry Between El Ni�o and La Ni�a. 29th Conference on Climate Variability and Change, 97th American Meteorological Society Annual Meeting, Seattle, WA. 25 January 2017.

  9. Response of ENSO Amplitude to a Higher CO2 forcing . Nanjing University, Nanjing, China. 17 November 2016.

  10. Factors Determining the Asymmetry of ENSO. IAP, Nanjing University, Nanjing, China. 15 November 2016.

  11. Factors Determining the Asymmetry of ENSO. IAP, Chinese Academy of Sciences, Beijing, China. 10 November 2016.

  12. Response of ENSO Amplitude to a Higher CO2 forcing . Peking University, Beijing, China. 6 April 2016.

  13. Response of ENSO Amplitude to a Higher CO2 forcing . IAP, Chinese Academy of Sciences, Beijing, China. 1 April 2016.

  14. Response of El Nino events to Higher CO2 forcing: Role of Nonlinearity. ENSO in a changing climate--the 4th CLIVAR workshop on the evaluation of ENSO processes in climate models. IPSL/UPMC, Paris, France. 8-10, July, 2015

  15. On the Response of El Nino Events to a Higher CO2 Forcing: Role of Nonlinearity. School of Energy and Environment, City University of Hong Kong, Hong Kong, China. March 27, 2015

  16. On the Response of El Nino Events to a Higher CO2 Forcing. IEES, Chinese University of Hong Kong, Hong Kong, China. March 26, 2015.

  17. The Response of El Nino Events to a Higher CO2 Forcing: Role of Nonlinearity, IAP, Chinese Academy of Sciences, Beijing, China

  18. Excessive Cold-tongue and Weak ENSO Asymmetry: Are These Two Common Biases in Climate Models Linked? . 2014 AGU Fall Meeting. San Francisco, CA.

  19. Why Do We Have El Nino Events? 29 September, 2014, ATOC, CU, Boulder, CO.

  20. Does The Rise of CO2 Cause Stronger El Nino Events? . 10 September, 2014, Attribution workshop; ESRL, Boulder, CO.

  21. Rectification of ENSO as a Possible Mechanism for Tropical Pacific Decadal Variability. CESM Climate Variability Working Group Meeting, 10 March, 2014. Boulder, CO.

  22. ENSO Asymmetry in CMIP5 Models. CESM Climate Variability Working Group Meeting, 2-3 February, 2014. Boulder, CO

  23. On The Time-Mean Effect of El Nino--Southern Oscillation AGU Fall Meeting. 15-19 December, 2013, San Francisco, CA.

  24. On the Diabatic and Nonlinear Aspects of El Nino--Southern Oscillation. 27 November, 2013, Research Center for Environmental Change, Academia Sinica, Taipei, Taiwan

  25. On the Time-Mean Effect of El Nino--Southern Oscillation. Department of Atmospheric Sciences National Taiwan UniversityTaipei, Taiwan

  26. "The effect of ENSO events on the Tropical Pacific Mean Climate: Insights from an Analytical Model". AGU Fall Meeting. 3-7 December, 2012, San Francisco, CA.

  27. "Rectification of El Nino-Southern Oscillation into Climate Anomalies of Decadal and Longer Time-Scales"". 18th Conference on Air-Sea Interaction, 9-12 July 2012, Westin Copley Place, Boston, MA.

  28. "The Effect of ENSO Events on The Tropical Pacific Mean Climate". Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY. 9 July 2012.

  29. "The Effect of ENSO on The Tropical Pacific Mean State". IPSL/LOCEAN, UPMC, Paris, November 22, 2010.

  30. "The Effect of ENSO on the Tropical Pacific Mean State--A New Way to Assess the Realism of ENSO in GCMs". Paris Workshop "New Stratigies for Evaluating ENSO Processes in Climate Models". IPSL/LOCEAN, UPMC, 17-19, November, 2010.

  31. "Simulations of the Indo-Pacific Warmpool by IPCC Models". In session "Ocean-Atmosphere Coupling Over the Indo-Pacific Warm-pool", 2010 Western Pacific Geophysics Meeting. Taipei, Taiwan, June 22-25 2010.

  32. "Role of Water Vapor and Clouds in Climate Change: Amplifiers or Stabilizers?" Institute of Atmospheric Physics, Beijing, November 6, 2009.

  33. "Role of Water Vapor and Clouds in Climate Change: Amplifiers or Stabilizers?" Nanjing University, Nanjing, November 4, 2009.

  34. "Understanding and Predicting the Response of ENSO to Global Warming". Nanjing University, Nanjing, China. November 2, 2009.

  35. "Understanding and Predicting the Response of ENSO to Global Warming". Peking University, Beijing, China, October 27, 2009.

  36. "Understanding and Predicting the Response of ENSO to Global Warming". Institute of Atmospheric Physics, Chinese Academy of Sciences, China, October 26, 2009.

  37. "Tropical Water Vapor and Cloud Feedbacks in CCSM3.5: A Preliminary Evaluation". CFMIP/GCSS Boundary Layer WG Workshop on evaluation and understanding of cloud processes in GCMs. University of British Columbia, Vancouver, 8th-12th June, 2009.

    "Response of ENSO to global warming: A perspective from global heat balance". ENSO and Global Change: The Past, Present, and Future. 2008 AGU Fall Meeting, Dec 15-19, 2008

  38. "Some Fundamental Problems about the Earth's Climate System". Invited lecture, Institute of Earth Environment, Chinese Academy of Sciences, Xian, China, October 30, 2008.

  39. "An Introduction to Earth's Climate System". Lectures as a visiting "Tengfei" Professor, School of Human Settlement and Civil Engineering, Xian Jiaotung University, Xian, China, October 28-29, 2008.

  40. "Understanding the Impact of Global Warming on the Level of ENSO activity", Invited lecture, Beijing University, Beijing, China, October 27, 2008.

  41. "Response of ENSO to global warming: A perspective from global heat balance", Recent Warming of the Tropical Oceans: Facts, Causes, and Implications . AGU Western Pacific Meeting, Cairns, Australia 29 July--1 August 2008.

  42. Understanding the impact of global warming on the level of ENSO activity", CCSM Climate Change Working Group Meeting, 13th Annual CCSM Workshop, Breckenridge, Colorado 17-19 June 2008.

  43. "An evaluation of ENSO asymmetry in community climate system models", Atmosphere Model Working Group Meeting, 13th Annual CCSM Workshop, Breckenridge, Colorado 17-19 June 2008.

  44. "The role of ENSO in regulating the mean climate of the tropical Pacific", CCSM Paleoclimate Working Group Meeting, 13th Annual CCSM Workshop, Breckenridge, Colorado 17-19 June 2008.

  45. "A regulatory effect of ENSO on the time-mean thermal stratification of the equatorial upper ocean", CCSM Ocean Model Working Group Meeting,13th Annual CCSM Workshop, Breckenridge, Colorado 17-19 June 2008.

  46. " The Role of ENSO in Regulating its Background State", Invited Seminar, Florida State University, Tallahassee, FL, April 17, 2008.

  47. "The Role of ENSO in Regulating its Background State: Implications for Strategies to Understand Climate Changes in the Tropical Pacific", Climatic Changes in the Last 1500 Years: Their Impact on Pacific Islands, Honolulu, Hawaii, November 12-14, 2007.

  48. "A Regulatory Effect of ENSO on the Time-Mean Thermal Stratification of the Equatorial Upper Ocean", Ocean-Atmosphere Coupling, IUGG XXIV, Perugia, Italy, July 2-13, 2007.

  49. "Water Vapor and Cloud Feedbacks in IPCC AR4 Models", Climate Change Working Group Meeting, the 12th Annual CCSM Workshop, Breckenridge, Colorado, June 19-21, 2007.

  50. "The Role of ENSO in Regulating its Background State: Implications for Decadal Variability", The 7th Workshop on Decadal Variability, Waikoloa, Hawaii, April 30--May 3, 2007.

  51. "Water Vapor and Clouds Feedbacks in Climate Models", Invited Seminar, University of California, Irvine, Irvine, CA. April 5, 2007.

  52. " The Role of ENSO in Regulating its Background State", Invited Seminar, University of California, Irvine, Irvine, CA. April 4, 2007.

  53. "Water Vapor and Cloud Feedbacks in Climate Models", Invited Guest Lecture in ATOC-7500 "Human Impacts on Weather and Climate". Duane 126, CU Campus, Boulder, CO. March 4, 2007.

  54. "Atmospheric Feedbacks Over the Pacific Cold-tongue: Results from Models and Observations", Invited Seminar, Chinese Meteorological Administration, Beijing, China. July 28, 2006.

  55. "A Regulatory Effect of ENSO on the Time-Mean Thermal Stratification in the Equatorial Upper Ocean", Invited Seminar, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China. July 28, 2006.

  56. "El Nino and the SST of the Western Pacific Warm-Pool", Invited talk in AGU's Western Pacific Meeting. Beijing, China. July 24-27, 2006.

  57. " The Role of ENSO in Regulating its Background State", Key Note Talk in "20 Years of Nonlinear Dynamics in Geosciences". Ixia, Rhodes, Greece. June 11--June 16, 2006.

  58. "Who does the vertical transport of heat in the tropical Pacific: Hurricanes or ENSO?", 27th Conferences on Hurricanes and Tropical Meteorology, Monterey, California. April 24-28, 2006.

  59. " A Regulatory Effect of ENSO on the Time-mean Stratification of the Equatorial Upper Ocean", Guest Lecture in ATOC-7500 "The Art of Climate and Environment Modeling".Department of Atmospheric and Oceanic Sciences, University of Colorado, Boulder, April 11, 2006.

  60. "Atmospheric Feedbacks Over the Pacific Cold-tongue: Results from Models and Observations", Physical Science Division Seminar, NOAA/Earth System Research Laboratory, Boulder, January 18, 2006. )

  61. "The role of ENSO in regulating the stability of the tropical Pacific climatology", Invited Seminar, Korea Ocean Research and Development Institute, Korea, September 21, 2005. )

  62. "Understanding the causes of the excessive cold-tongue in coupled GCMs", Invited Seminar, Korea Ocean Research and Development Institute, Ansan, Korea. September 22, 2005.

  63. "The Role of ENSO in Regulating the Stability of the Tropical Pacific Climatology",Invited Seminar, NASA/Goddard Space Flight Center, Greenbelt, MD, March 28, 2005.

  64. "The Role of ENSO in Regulating the Stability of the Tropical Pacific Climatology". ENSO: Dynamics and Predictability. 2005 General Assembly of European Geophysical Union, Vienna, Austria. April 24-29, 2005.

  65. "The Role of ENSO in Regulating the Stability of the Tropical Pacific Climatology". Tropical-Extratropical Climatic Teleconnections, A Long-Term Perspective, University of Hawaii, Honlulu, Hawaii, USA. February 8-11, 2005.

  66. "Cloud and Water Vapor Feedbacks in Climate Models". The 16th Symposium on Global Change and Climate Variations, San Diego, California. January 9-13, 2005.

  67. "The Role of ENSO in Regulating the Tropical Pacific Climatology", 2004 AGU Fall Meeting, San Francisco, CA. December 13-17, 2004.

  68. "Feedbacks in Climate Models", Invited Seminar, NASA/Goddard Space Flight Center, Greenbelt, MD. August 26, 2004.

  69. "Testing the Heat-Pump Hypothesis Using the NCAR Pacific Basin Model". The 9th Annual CCSM Workshop, Santa Fe, NM. July 07-09, 2004.

  70. "The Effect of Subtropical Cooling on the Amplitude of ENSO: A Numerical Study", Invited Seminar, Laboratory of Dynamical Oceanography and Climatology (LODYC), Paris, France. May 4, 2004.

  71. "The Effect of Subtropical Cooling on the Amplitude of ENSO: A Numerical Study",El Nino and Nonlinear and Stochastic Issues, 1st General Assembly of European Geosciences Union, Nice, France. 25-30 April 2004.

  72. "The Effect of Subtropical/Extratropical Cooling on the Amplitude of ENSO: A Numerical Study",15th Symposium on Global Change and Climate Variations, Seattle, WA. 10-16 January 2004.

  73. "Understanding the Causes of the Excessive Cold-tongue in Coupled GCMs: A System Perspective", 2nd Coupled Model Intercomparison Workshop (CMIP), Max Planck Institute for Meteorology, Hamburg, Germany. September 22, 2003.

  74. "A Heat-Pump Hypothesis for ENSO", Invited Seminar, International Pacific Research Center, University of Hawaii, Honolulu, Hawaii. August 13, 2003.

  75. "Understanding the Causes of the Excessive Cold-tongue in Coupled GCMs: A System Perspective", 8th Annual CSM Workshop, Breckenridge, CO. 24-26 June 2003.

  76. "Validating and Understanding Feedbacks in GCMs", Tropical Biases Workshop, GFDL, Princeton, NJ. 19 May 2003.

  77. "Climate Feedbacks in NCAR CAM1 and CAM2", Atmospheric Model Working Group Meeting, Boulder, CO. 6 March 2003.

  78. "Validating and understanding the cloud and water vapor feedbacks in the NCAR CCSM". 14th Symposium on Global Change and Climate Variations, 83rd Annual Meeting of the American Meteorological Society, Long Beach, CA. 8-14 February 2003.

  79. "Why did the two strongest El Ninos in the instrumental record occur in the last two decades?". 14th Symposium on Global Change and Climate Variations, 83rd Annual Meeting of the American Meteorological Society, Long Beach, CA. 8-14 February 2003.

  80. "The control of meridional differential surface heating over the level of ENSO activity: a heat-pump hypothesis". Ocean-atmosphere interaction and climate variability, Fall Meeting of American Geophysical Union, San Francisco, CA. 6-10 December 2002.

  81. "The role of El Nino in regulating the long-term strength of the Walker and Hadley circulation". Conference on the Hadley Circulation: Present, Past, and Future, International Pacific Research Center, Honolulu, Hawaii. 12-15 November 2002.

  82. "The effect of an anomalously high warm-pool SST on the magnitude of El Nino warming". NOAA's 27th annual climate diagnostics and prediction workshop, Fairfax, Virgina. 21-25 October 2002.

  83. "Validating and understanding the radiative and dynamical feedbacks in the NCAR CSM". 7th Annual CSM Workshop, Breckenridge, CO. 25-27 June 2002.

  84. "The effect of anomalously high warm-pool SST on the magnitude of El Nino warming". El Nino and Nonlinear and Stochastic issues, XXVII General Assembly of European Geophysical Society, Nice, France. 21-26 April 2002.

  85. Radiative and dynamical feedbacks in the tropical atmosphere: a data- model comparison�. Feedbacks in the Climate System, XXVII General Assembly of European Geophysical Society, Nice, France. 21-26 April 2002.

  86. "The control of the warm-pool SST over the magnitude of El Nino warming". 13th Symposium on Global Change and Climate Variations, 82nd annual meeting of the American Meteorological Society, Orlando, Florida, USA. 13-17 January 2002.

  87. "The Effect of Tropical Dry Zones on the Sensitivity of the Tropical Climate". 4th International Scientific Conference on the Global Energy and Water Cycle, Coll�ge de France, Paris, France. 10-14 September 2001.

  88. "A heat-pump picture for the ENSO system". 8th scientific assembly of IAMAS, Innsbruck, Austria. 10-18 July 2001.

  89. "A heat-pump hypothesis for the ENSO system". 13th conference on atmospheric and fluid dynamics, Breckenridge, CO. 4-8 June 2001.

  90. "Surface heating, upper ocean heat content, and the magnitude of El Nino warming", 12th Symposium on Global Change and Climate Variations, 81st annual meeting of the American Meteorological Society, Albuquerque, NM, USA. 14-19 January 2001.