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CCSM Atmosphere Model and Climate Variability Joint Working Group Meeting
Bill Collins and Leo Donner, AMWG Co-Chairs
Jim Hurrell and Michael Alexander, CVWG

Millennium Harvest House
1345 Twenty-Eighth Street, Boulder, CO
Thursday, 6 March 2003

8:30am - 9:00am Coffee and Fruit - Millennium Room
9:00am - 9:30am W. Collins and L. Donner: Introduction and status of CAM
9:30am - 9:50am J. Hack: Implementation of SOM in CAM and associated cloud fix
9:50am - 10:30am

W. Collins: Improvements in radiation processes:

  • Inclusion of diagnostic aerosols
  • Improvements in near-infrared absorption by H2O
  • Update to longwave to incorporate new H2O continuum
10:30am - 10:45am Break
10:45am - 11:05am Jeff Kiehl: Climate sensitivity results from 1% run and SOM integrations
11:05am - 11:30am B. Boville: Proposed modifications to prognostic cloud water parameterization and inclusion of latent heat of fusion
11:30am - 12:00pm Discussion of where we stand on preparation for IPCC version
12:00pm - 1:30pm Lunch
1:30pm - 1:50pm DZ. Sun: Understanding the causes for the cold biases in the equatorial Pacific in the NCAR CCSM: A systems approach
1:50pm - 2:10pm G. Danabasoglu: CCSM sensitivity to substitution of various surface fields from observational data sets
2:10pm - 2:25pm E. Maloney: Results from experiments with enhanced gustiness
2:25pm - 2:45pm J. Bacmeister: Investigation of mechanisms for creation of double ITCZ
2:45pm - 3:15pm Discussion of where we stand on model biases
3:15pm - 3:30pm Break
3:30pm - 3:45pm J. Hurrell: Results from AMIP CAM ensemble
345pm - 4:00pm M. Alexander: The WGNE variability diagnostics applied to CAM
4:00pm - 4:20pm D. DeWitt: Assessing seasonal forecast skill of near surface temperature and precipitation in the NCAR family of AGCMs
4:20pm - 4:40pm J. Bergman: A systematic diagnosis of atmospheric physics from the short-time evolution of single column models (specifically NCAR SCMs)
4:40pm - 5:00pm S.-J. Lin: High-resolution weather prediction experiments with fvGCM
5:00pm RECEPTION - Sugarloaf Room


Millennium Harvest House
1345 Twenty-Eighth Street, Boulder, CO

Friday, 7 March 2003

8:30am - 8:50am Coffee and Fruit - Millennium Room
8:50am - 9:05amC. Bretherton: Update on University of Washington PBL parameterization in CAM
9:05am - 9:20amJ. Anderson: Report on NCAR assimilation initiative
9:20am - 9:40am J. Potter: Discussion of the CCPP-ARM parameterization testbed (CAPT)
9:40am - 9:50am

M. Suarez: Future of climate modeling plans at Goddard Space Flight Center

9:50am - 10:10am D. Kinnison: WACCM developments
10:10am - 10:25am C. Cassou: Coupling CAM to CDC's mixed layer model
10:25am - 10:40am Break
10:40am - 11:00am M. Ziemianski: Toward the cloud-resolving convection parameterization in CCSM
11:00am - 11:20am M. Khairoutdinov: Update on CSU super-parameterization work with CAM
11:20am - 11:40am R. Somerville: New ARM/SCM results on incorporating detailed microphysics into cloud-radiation parameterization
11:40am - 12:10pm T. Ackerman: Current status and future directions of the ARM program
12:10pm - 12:30pm Discussion of new directions
12:10pm - 1:30pm LUNCH (concurrent with discussion)