GFDL Past Events & Seminars - 2009

Modelling the direct effects of atmospheric pollutants on the land carbon sink

Toward Understanding Aerosol-Cloud-Climate Interactions

Simulating deglacial climate evolution towards Bolling-Allerod warming in CCSM3: -----A Preliminary Report

Stratospheric water vapour: Enigma or Rosetta stone?

Ko Barrett, Deputy Director, NOAA Climate Program Office will report on current UN Framework Convention on Climate Change negotiations. Location: Wallace Hall, Room 300. Lunch provided starting at 11:45am.

TBA

Some recent results in global modelling of oceanic mesoscale eddies, barotropic tides, and baroclinic tides

The Role of Salinity for AMOC variations in an undisturbed and anthropogenic influenced climate

Global tropical-extratropical teleconnection during the northern summer

Wind wave modeling at NCEP: WAVEWATCH III past present and future

Ground to Upper Atmosphere Modelling Using the Canadian Middle Atmosphere Model

From phytoplankton to fish: global patterns in energy flow through marine ecosystems

Climate projections for regional impact assessments: Where we're at today, and what we need next!

The Greenland tip jet

Stabilization Wedges: A Tool for Communicating the Carbon and Climate Challenge

Simple statistical-dynamical models of tropical cyclone intensity

Vorticity and convection in large-scale tropical atmospheric dynamics

The workshop "Applying IPCC-class Models of Global Warming to Fisheries Prediction" will be held at Princeton University's Lewis Library this June 15-17. The objective is to develop new and innovative applications of IPCC climate models to problems in fisheries science and management. For an agenda, visit http://www.gfdl.noaa.gov/fisheries

The workshop "Applying IPCC-class Models of Global Warming to Fisheries Prediction" will be held at Princeton University's Lewis Library this June 15-17. The objective is to develop new and innovative applications of IPCC climate models to problems in fisheries science and management. For an agenda, visit http://www.gfdl.noaa.gov/fisheries

The workshop "Applying IPCC-class Models of Global Warming to Fisheries Prediction" will be held at Princeton University's Lewis Library this June 15-17. The objective is to develop new and innovative applications of IPCC climate models to problems in fisheries science and management. For an agenda, visit http://www.gfdl.noaa.gov/fisheries

The Atlantic Meridional Mode and its coupled variability with the Guinea Dome

Air quality from space

The production of national climate change projections for Australia: history and challenges for the future

Studies of cloud-aerosol interactions using satellite data and global models

Flood frequency in the Eastern United States

Conceptual Understanding of Climate Change

Freak Waves

Towards a Global Climatology of the Planetary Layer

Overturning analysis of the meridional energy transport in the atmosphere

Seasonal Atlantic Hurricane Simulations and Forecasts using the COAPS Spectral Model

Freezing of Supercooled Cloud Drops

Long-term changes of the tropical atmospheric circulations under global warming

News From the Wild West: Update on ozone trends and recent results on Mercury from the Western United States

The Mutual Interaction of Thermal forcing and the Quasi-stationary Circulation.

Physical Parameterizations in Sea Ice Models: Issues and Applications

How to model mixing in overflows using second-order turbulence closures

Self Maintaining Eddy-Driven Jets, Annular Modes, and the Poleward Shift of the Jet Under Global Warming

Workshop

Workshop

Workshop

Atmospheric Aerosols: Chemistry, Clouds, and Climate

Prospects for Petascale Climate Modeling: Can Kilo-Processors, Exa-Flops and Peta-Bytes Make a Difference in Simulation of Earth's Climate?

High Resolution Modeling Forum

Ocean heat uptake and transient climate change

TBA

Storm track response to decadal fluctuations of the Atlantic Meridional Overturning Circulation: a model study

http://www.gfdl.noaa.gov/ocean-climate-model-meeting

http://www.gfdl.noaa.gov/ocean-climate-model-meeting

Aerosol and Surface Effects on South Asian Monsoon Hydroclimate

Conference

Conference

You are what you eat: Bottom-up and climatic forcing on the foraging ecology of leatherback turtles

discussion

Spray underwater glider observations around the world

Radiative Heating in Tropical Clouds

Multi-scale mechanisms affecting hemispheric chemistry & transport

All Hands Meeting

Two-Moment Cloud Microphysics in AM3

Effects of ENSO and the extratropics on the South Asian summer monsoon

"Characteristics of Ice Supersaturated Regions from Aircraft-Based Field Campaigns"

The ins and outs of modeling intertidal mussel body temperatures worldwide Place: Sayre Hall, Room 312

"Atlantic tropical cyclones and climate: observed changes".

Sensitivity of the Hadley circulation to parameterization of upper tropospheric ice clouds using a global cloud-system resolving model We examined the relationship between upper tropospheric ice-cloud properties and the Hadley circulation intensity through parameter sensitivity studies of global cloud-system resolving simulations with explicit cloud microphysics. Experiments under a perpetual July condition were performed by changing parameters in the boundary layer and cloud microphysics schemes, with a mesh size of approximately 14 km. One additional experiment with a mesh size of approximately 7 km was also conducted. These experiments produced a variety of upper cloud areas and out-going longwave radiation (OLR) distributions. We found that as the upper cloud area increased, the total precipitation decreased and the intensity of the Hadley circulation weakened because of energy balance constraints. Interestingly, the net ice water path was not correlated with the upper ice cloud areas or OLR, indicating that the spatial coverage of upper ice clouds, rather than the total ice water content, was the key factor in the radiation budget. We will also discuss key factors of cloud microphysics on precipitation efficiency and climate sensitivity.