GFDL Events

Upcoming GFDL events & seminars

• February 15, 2012: Relationship among Sea Surface Temperature, Rainfall and Cyclones in the Tropics
  Syukuro Manabe (Princeton)
  Looking back the modeling studies of tropical circulation that we conducted at GFDL during the 1960’s and early 1970’s, I would like to explore the dynamical relationship among sea surface temperature, tropical cyclones, and rainfall. The studies use an atmospheric GCM, which incorporates a very simple parameterization of deep moist convection called saturated convective adjustment. It was very encouraging, however, that the model yielded realistic distribution of rainfall and that of tropical cyclones in the tropics. Finally, I discuss the influence of global warming upon tropical circulation (e.g., Walker Circulation, ENSO and tropical cyclone), based upon the several modeling studies that were conducted in 1990’s using a coupled ocean-atmosphere GCM.
  Time: 12:00 pm - 1:00 pm
  Location: Smagorinsky Seminar Room
• February 16, 2012: Geoengineering Earth's climate
  Ken Caldeira (Stanford)
  Greenhouse gases from human activities continue to accumulate in the atmosphere causing the Earth to get hotter and hotter. Independent of what we might desire, there is little strong evidence that these trends will change substantially any time soon. Volcanic eruptions have shown us that small particles in the stratosphere can cool the Earth rapidly. Engineering analyses suggest that the direct cost of emplacing such particles in the stratosphere would be approximately one ten-thousandth of global GDP -- essentially in the noise of the global economy. Climate models suggest that such emplacement would eliminate most climate change for most people most of the time. Results of such climate model simulations will be presented. Discussion of this topic is often polarizing, with the mainstream generally considering these ideas crazy and unwise. The desire to consider these options seems strongest at the two ends of the spectrum, with some environmentalists feeling that protection of Arctic and other ecosystems depends on this kind of drastic action in addition to redoubling efforts to reduce greenhouse gas emissions, and with some more business-minded folks thinking that these strategies should be developed as emergency back-up measures in lieu of serious efforts to reduce greenhouse gas emissions. This talk will discuss what is understood scientifically about some geoengineering proposals to counteract some of the effects of high concentrations of greenhouse gases in the atmosphere, and place this scientific knowledge in a broader political and environmental context.
  Time: 2:00 pm - 3:00 pm
  Location: Smagorinsky Seminar Room
• February 22, 2012: TBA
  Rym Msadek (GFDL/UCAR)
  TBA
  Time: 12:00 pm - 1:00 pm
  Location: Smagorinsky Seminar Room
• February 23, 2012: The CGILS Project to Understand the Physical Mechanism of Climate Feedbacks from Low Clouds
  Minghua Zhang (Stony Brook University/SUNY)
  The CGILS Project to Understand the Physical Mechanism of Climate Feedbacks from Low Clouds
  Time: 2:00 pm - 3:00 pm
  Location: Smagorinsky Seminar Room
• March 1, 2012: TBA
  David Romps (TBA)
  TBA
  Time: 2:00 pm - 3:00 pm
  Location: Smagorinsky Seminar Room
• March 7, 2012: The seasonality of Arctic air pollution: A "dynamicist"'s view
  Yi Ming (GFDL)
  The seasonality of Arctic air pollution: A "dynamicist"'s view
  Time: 12:00 pm - 1:00 pm
  Location: Smagorinsky Seminar Room
• March 8, 2012: TBA
  Zhiming Kuang (Harvard)
  TBA
  Time: 2:00 pm - 3:15 pm
  Location: Smagorinsky Seminar Room
• March 13, 2012: TBD
  Mat Evans (University of York/National Centre for Atmospheric Science)
  TBD
  Time: 10:00 am - 12:00 pm
  Location: 217 Conference Room
• March 14, 2012: Interactions of Water and Energy Mediate Permafrost Climate Feedbacks
  Zack Subin (U of C, Berkeley)
  Interactions of Water and Energy Mediate Permafrost Climate Feedbacks
  Time: 12:00 pm - 1:00 pm
  Location: Smagorinsky Seminar Room
• March 15, 2012: Sea ice in global climate models
  Elizabeth Hunke (Los Alamos National Lab)
  Sea ice in global climate models
  Time: 2:00 pm - 3:15 pm
  Location: Smagorinsky Seminar Room
• March 21, 2012: Dependence of convectively coupled tropical waves on
  Stefan Tulich (CIRES)
  Dependence of convectively coupled tropical waves on the basic state
  Time: 12:00 pm - 1:00 pm
  Location: Smagorinsky Seminar Room
• March 22, 2012: TBA
  Doug MacAyeal, (U of Chicago)
  TBA
  Time: 2:00 pm - 3:00 pm
  Location: Smagorinsky Seminar Room
• March 29, 2012: TBA
  Lai-Yung (Ruby) Leung (Pacific Northwest National Laboratory)
  TBA
  Time: 8:00 am - 8:00 am
  Location: Smagorinsky Seminar Room
• April 4, 2012: TBA
  Gabriel Vecchi (GFDL)
  TBA
  Time: 12:00 pm - 1:00 pm
  Location: Smagorinsky Seminar Room
• April 5, 2012: TBA
  Kristie Boering (UC - Berkeley)
  TBA
  Time: 2:00 pm - 3:00 pm
  Location: Smagorinsky Seminar Room
• April 12, 2012: TBA
  Phil Rasch (TBA)
  TBA
  Time: 2:00 pm - 3:00 pm
  Location: Smagorinsky Seminar Room
• April 26, 2012: TBA
  Steve Frolking (TBA)
  TBA
  Time: 2:00 pm - 3:00 pm
  Location: Smagorinsky Seminar Room
• May 3, 2012: TBA
  Petere Webster (Georgia Tech)
  TBA
  Time: 8:00 am - 8:00 am
  Location: Smagorinsky Seminar Room
• May 10, 2012: TBA
  Jean-Francois Lamarque (UCAR)
  TBA
  Time: 2:00 pm - 3:00 pm
  Location: Smagorinsky Seminar Room
• May 17, 2012: TBA
  Louis St. Laurent (WHOI)
  TBA
  Time: 2:00 pm - 3:00 pm
  Location: Smagorinsky Seminar Room
• May 23, 2012: TBA
  Dr. Andreas Schiller ( The Bluelink Ocean Forecasting System CSIRO Marine and Atmospheric Research Hobart, AUS)
  TBA
  Time: 12:00 pm - 1:00 pm
  Location: Smagorinsky Seminar Room
• May 24, 2012: TBA
  Jennifer MacKinnon (U of California - San Diego)
  TBA
  Time: 2:00 pm - 3:00 pm
  Location: Smagorinsky Seminar Room
• May 31, 2012: TBA
  Ann Fridlind (GISS)
  TBA
  Time: 2:00 pm - 3:00 pm
  Location: Smagorinsky Seminar Room
• June 7, 2012: TBA
  Claudia Cenedese (WHOI)
  TBA
  Time: 2:00 pm - 3:00 pm
  Location: Smagorinsky Seminar Room
• June 14, 2012: TBA
  Ben Santer (LLNL)
  TBA
  Time: 2:00 pm - 3:15 pm
  Location: Smagorinsky Seminar Room
• June 21, 2012: TBA
  Joel Norris (UCSD)
  TBA
  Time: 2:00 pm - 3:00 pm
  Location: Smagorinsky Seminar Room

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