ON SAHEL CLIMATE CHANGE
WORKSHOP ON SAHEL CLIMATE CHANGE
Columbia University, New York
March 19-21, 2007
March 19-21, 2007
The workshop will focus on mechanisms of climate change in the African Sahel. It will be very informal, with plenty of discussion organized around a set of talks assessing current knowledge and problems. The goal is to collate information coming from observations, different modeling groups, and theoretical works that could ultimately be used to distinguish between more and less trustworthy model predictions of African climate change.
The talks will focus on the observational record of African rainfall at all scales (from the fast organizations of mesoscale convective systems, to the SSTdriven interannual variability, to paleo changes in response to external forcings), physical mechanisms that are thought to be important for the region, but not yet simulated in climate models (e.g. vegetation and dust processes) and the simulations of African rainfall in current climate model (the simulation of the 20th century by atmospheric and coupled general circulation models, as well as the models' projections for the 21st century).
Michela Biasutti (LDEO), Isaac Held (GFDL), Alessandra Giannini (IRI), Adam Sobel (CU), and John Chiang (UC, Berkeley).
Date and Time
Monday, March 19 , 8:45am-5pm
Tuesday, March 20, 9am-5pm, off-site dinner at 6pm (at Pisticci restaurant)
Wednesday, March 21, 9am-12pm
The workshop is open to the Lamont, EI, and GISS communities. Registration not required for attending the workshop.
If you plan to attend the dinner, please confirm with firstname.lastname@example.org
If you are not
a US citizen or permanent resident:
We will need a copy of your passport (& visa, if available) to be able to reimburse your expenses.
All talks will be 20-minute long. There will be time for questions and discussion throughout the day, as the talks progress, and in specific allotted times. Participants are encouraged to bring slides on a memory stick, if they have some results that might be useful for discussion.
Monday, March 19, morning
Introductory Remarks and Welcome
Jeff Sachs: Welcoming address: The importance of long-term climate prediction for Sub-Saharan Africa
Peter DeMenocal: Paleo Observations of the African Monsoon
Sharon Nicholson: Observations and Mechanisms of Interannual variability in West Africa.Alessandra Giannini: Sahel rainfall variability in AMIP-like integrations.
Randy Koster: Land-atmosphere feedback in the Sahel.
Natalie Mahowald: Dust dynamics and effect on monsoon
Chris Taylor: Interactions between convection and soil moisture.
Tuesday, March 20, morning
Chris Thorncroft: Observed characteristics of the mean Sahel rainy season
Chidong Zhang: The dynamics of monsoon: lessons from the annual cycle.
Adam Sobel: Equilibrium
response to tropospheric
+ Jian Lu's ppt (animation only on PCs)
Michela Biasutti: Sahel Climate Change in the IPCC AR4 models
Wednesday, March 21, morning<>Open Discussion: Lessons learned & Recommendation for future research. David Battisti moderates (ppt)
Concluding Remarks and Thanks.
Useful Information and Links
Karen Bocsusis, at the travel office at Lamont email@example.com
New York City subway directions: www.hopstop.com
The Newton Hotel www.thehotelnewton.com
The main entrance to Columbia University is
at 116th Street and Broadway Avenue, right next to the 1 subway stop.
The main entrance to Columbia University is at 116th Street and Broadway Avenue, right next to the 1 subway stop.
Travel and Expense Reimbursement Forms. These will also be handed out at the meeting:
For people who aren't US citizens or permanent residents: