Announcing the 12th Annual CCSM Workshop

June 19 - 21, 2007, Breckenridge, CO

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Webcast Available for Plenary and Working Group Sessions!

NCAR's Climate and Global Dynamics Division is pleased to announce its 12th Annual CCSM Workshop.  This year's workshop is a combination of plenary presentations, special interest presentations by the CCSM working groups, and a poster session for attendees to highlight their work. With CCSM 3.5 in the works and 4 coming up soon, there's a lot to talk about. We hope you'll join us this summer in Breckenridge.  

Click Here for Online Registration


Tuesday, June 19th, 2007:

7:00am - 6:30 pm Forest Room Poster Session
7:00am - 8:30am Atrium Lobby, Lounge Registration and Breakfast
8:30am - 9:30am Ten Mile Room Presentation of CCSM Distinguished Achievement Award and Talk by Recipient, Inez Fung of the University of California at Berkeley
9:30am - 10:30am Ten Mile Room State of the CCSM by Peter Gent of NCAR CGD
10:30am - 11:00am   Break
11:00am - 12:00pm Ten Mile Room Presentation on AR4 by Susan Solomon of NOAA (presentation not available)
12:00pm - 1:30 pm   Lunch, on your own

Concurrent Session: Ocean Working Group

CCSM 3.5
1:30pm - 1:45pm Ten Mile Room Purpose of CCSM3.5, Tuning and BGC Spin-up by Keith Lindsay of NCAR CGD
1:45pm - 1:55pm Ten Mile Room CCSM3.5 Ocean Configuration and Solutions by Gokhan Danabasoglu of NCAR CGD
1:55pm - 2:00pm Ten Mile Room Discussion
Science and Results
2:00pm - 2:15pm Ten Mile Room The Ocean Response to Hurricane Francis by Jim Price of WHOI
2:15pm - 2:25pm Ten Mile Room High Resolution Coupled Ocean Results by Norikazu Nakashiki of CRIEPI
2:25pm - 2:35pm Ten Mile Room Diagnosing Eddy Diffusivities by Frank Bryan of NCAR CGD
2:35pm - 2:50pm Ten Mile Room CORE integrations with CCSM3/HYCOM by Jianjun Yin of COAPS/FSU
2:50pm - 3:00pm Ten Mile Room To be Announced
3:00pm - 3:30pm   Break
The Path to CCSM4 and Beyond: LANL
3:30pm - 3:45pm Ten Mile Room POP/HYPOP Progress and Future Directions
3:45pm - 4:00pm Ten Mile Room Upper Ocean Work
4:00pm - 4:15pm Ten Mile Room Fresh Water Forcing and THC
The Path to CCSM4 and Beyond: NCAR and Others

4:15pm - 4:25pm

Ten Mile Room NRCM by Enrique Curchitser of NCAR (visitor)
4:25pm - 4:35pm Ten Mile Room Wind Interpolation by David Neckels of NCAR EMSF
4:35pm - 4:45pm Ten Mile Room Banda Sea Mixing by Marcus Jochum of NCAR
4:45pm - 4:55pm Ten Mile Room Vertical Resolution by Steve Yeager of NCAR
4:55pm - 5:00pm Ten Mile Room Discussion

Concurrent Session: Climate Change Working Group

The session will consist of AMS-style short talks, followed by discussion of CCWG plans for the coming year. IMPORTANT NOTICE FOR SPEAKERS: Each talk will be 12 minutes (time limit strictly enforced), followed by a question or two.
1:30pm - 1:45pm Aspen/Bighorn Room Cloud and Water Vapor Feedbacks in CMIP3 Models Assessed for IPCC by De-Zheng Sun of CU CIRES and NOAA (presentation not available)

1:45pm - 2:00pm

Aspen/Bighorn Room Identification of Human-induced Changes in Atmospheric Moisture Content by Ben Santer of PCMDI (presentation not available)
2:00pm - 2:15pm Aspen/Bighorn Room Effects of Geoengineering Approaches on the Coupled Climate System: First Impressions by Caspar Ammann of NCAR CGD
2:15pm - 2:30pm Aspen/Bighorn Room Using CCSM3 Model Output to Examine Distributions of Severe Weather Environments by Patrick Marsh by University of Oklahoma
2:30pm - 2:45pm Aspen/Bighorn Room Climate Change and Thawing Permafrost by Dave Lawrence by NCAR CGD
2:45pm - 3:00pm Aspen/Bighorn Room Arctic Cloud Changes in the CMIP3 Models Assessed for the IPCC AR4 by Steve Vavrus by University of Wisconsin
3:00pm - 3:30pm Aspen/Bighorn Room Break
3:30pm - 3:45pm Aspen/Bighorn Room Effect of Bering Strait on Atlantic MOC by Aixue Hu of NCAR
3:45pm - 4:00pm Aspen/Bighorn Room Storm Track Analysis from CCSM3: Present and Future Climate by Haiyan Teng of NCAR
4:00pm - 4:15pm Aspen/Bighorn Room Low Emissions Scenarios and Future Climate Change Stabilization by Warren Washington of NCAR
4:15pm - 4:30pm Aspen/Bighorn Room Contributions of Natural and Anthropogenic Forcing to Changes in Temperature Extremes Over the U.S. by Gerald Meehl of NCAR
4:30pm - 5:00pm Aspen/Bighorn Room Future plans of the CCWG by Co-chairs Gerald Meehl and Warren Washington of NCAR CGD and Ben Santer of LLNL

Concurrent Session: Chemistry Climate Working Group

1:30pm - 1:40pm Columbine Room Introduction by Peter Hess of NCAR
1:40pm - 1:50pm Columbine Room Progress at LLNL by Philip Cameron Smith and Scott Elliott of LLNL
1:50pm - 2:00pm Columbine Room Nitrogen Emission Module in the CLM by Beth Holland of NCAR
2:00pm - 2:10pm Columbine Room Short-lived Halogen Chemistry in CAM-Chem by Don Wuebbles of the University of Illinois
2:10pm - 2:20pm Columbine Room Emission Dataset and Evaluation by Claire Granier of NOAA
Aerosol Talks, Talking Points
2:20pm - 2:30pm Columbine Room Sensitivity of Secondary Organic Aerosol to Future Climate and Emission Changes by Colette Heald of the University of California Berkeley
2:30pm - 2:40pm Columbine Room Radiative Forcing of the Summer 2004 Alaska Fires by Gabriele Pfister of NCAR
2:40pm - 2:50pm Columbine Room Dust and Seasalt Aerosols by Natalie Mahowald of NCAR CGD
2:50pm - 3:00pm Columbine Room Aerosol Dynamics by Xiaohong Liu of PNL
3:00pm - 3:30pm Columbine Room Break
3:30pm - 3:40pm Columbine Room Parameterization of Indirect Effect in CAM by Steve Ghan of PNL
3:40pm - 3:50pm Columbine Room Aerosols and Indirect Effects Using New 2 Moment Microphysics in CAM by Andrew Gettelman of NCAR
3:50pm - 4:00pm Columbine Room On-line Aerosols in the Oslo Version of CAM: Some Shortcomings by Trond Iversen of the University of Oslo
4:00pm - 4:10pm Columbine Room Sensitivity Simulations and Discussion Points by Peter Hess by NCAR CGD
4:10pm - 5:00pm Columbine Room Discussion

Concurrent Session: Land Model Working Group

3:30pm - 3:35pm Tarn Room Introduction by Dave Lawrence of NCAR CGD
Entrepreneurial Talks (10 minutes each, including questions)
3:35pm - 3:45pm Tarn Room Remote Sensing Data Assimilation for a Prognostic Phenology Model in CLM by Reto Stockli of Colorado State University
3:45pm - 3:55pm Tarn Room Coupling CLM to Ecologic (TEM) and Biogeochemistry Modules (DNDC) by Adam Schlosser of MIT
3:55pm - 4:05pm Tarn Room Improved Arctic and Antarctica Surface Height in CLM by Menglin Jin of the University of Maryland
4:05pm - 4:15pm Tarn Room Including Semi-arid Shrubs into CLM-DGVM by Michael Barlage of the University of Arizona
4:15pm - 4:40pm Tarn Room Update on Progress and Plans for CLM4 and Beyond by Dave Lawrence and Keith Oleson of NCAR CGD
4:40pm - 5:00pm Tarn Room Open Discussion on CLM4 Priorities
Group Reception
5:00pm - 7:00pm Maggie Building Reception with Cash Bar

Wednesday, June 20, 2007:

7:00am - 5:00pm Forest Room Poster Session
7:00am - 8:30am Atrium, Lounge Registration and Breakfast
8:30am - 9:30am Ten Mile Room Presentation on GFDL Short Term Forecasting by Tony Rosati of NOAA/GFDL
9:30am - 10:30am Ten Mile Room Presentation on Downscaling by Ruby Leung of PNNL
10:30am - 11:00am   Break
11:00am - 12:00am Ten Mile Room Presentation on the Greenland Icecap by Konrad Steffen of the University of Colorado
12:00pm - 1:30 pm   Lunch, on your own

Concurrent Session: Joint Land Model and Biogeochemistry Working Groups

1:30pm - 2:00pm Ten Mile Room Land Model WG Activities by David Lawrence and Sam Levis of NCAR
2:00pm - 3:00pm Ten Mile Room CLAMP Project Status by Forrest Hoffman of ORNL and Jim Randerson of UCI
3:00pm - 3:30pm   Break

Concurrent Session: Biogeochemistry Working Group

3:30pm - 4:00pm Ten Mile Room Coupled CCSM3, T31 Run Status by Peter Thornton and Keith Lindsay of NCAR
4:00pm - 4:30pm Ten Mile Room Coupled CCSM3.5 Run Status by Keith Lindsay of NCAR
4:30pm - 5:00pm Ten Mile Room Discussion of Future Plans/advertise Posters
5:00pm - 6:00pm Forest Room Joint Land Model and Biogeochemistry Working Groups Poster Session

Concurrent Session: Software Engineering Working Group

1:30pm - 2:10pm Tarn Room Tarn Room Initial Results and Performance of the GFDL Cubed Sphere Model by Bruce Wyman of GFDL
2:10pm - 2:35pm Tarn Room Overview of the PIO Library and its First Implementation in HOMME by Jim Edwards of NCAR
2:35pm - 3:00pm Tarn Room Derivative Preserving Interpolation with Application to Atmosphere-ocean Coupling by David Neckels of NCAR ESMF
3:00pm - 3:15pm   Short Break (15 minutes)
3:15pm - 3:40pm Tarn Room New Radiation Parameterizations for CAM/CCSM by Andrew Conley of NCAR
3:40pm - 4:05pm Tarn Room Extending Scalability of the Community Atmosphere Model by Art Mirin of LLNL
4:05pm - 4:20pm Tarn Room ESMF Update by Cecelia Deluca of NCAR ESMF, not available
4:20pm - 4:35pm Tarn Room SciDAC Update by Pat Worley of ORNL
4:35pm - 5:00pm Tarn Room CSEG/CCSM3.5 Update by Mariana Vertenstein of NCAR CGD

Concurrent Session: Climate Variability Working Group

1:30pm - 1:35pm Aspen/Bighorn Room Session Introduction by Clara Deser
1:35pm - 1:55pm Aspen/Bighorn Room A First Look at the New CVWG/CCWG Climate Change Ensemble by Grant Branstator of NCAR
1:55pm - 2:15pm Aspen/Bighorn Room Results from (Completed) Coupled Retrospective Forecast Ensembles Using CCSM3 by Schneider of GMU/COLA
2:15pm - 2:35pm Aspen/Bighorn Room the by Scott Weaver of the University of Maryland
2:35pm - 3:00pm Aspen/Bighorn Room Oceanic and Atmospheric Forcing ofSea Level Pressure Trends, 1950 to 2000 by Clara Deser of NCAR
3:00pm - 3:20pm   Short Break (20 minutes)
3:20pm - 3:40pm Aspen/Bighorn Room Using a Two-Oscillator View to Examine the CGCM Deficiency in ENSO by Jin-Yi Yu of the University of California-Irvine
3:40pm - 4:00pm Aspen/Bighorn Room On the Origin of Spring-time Westerlies in the Equatorial Atlantic in CAM3 and CCSM3 by Ching-Yee Chang of the University of Maryland
4:00pm - 4:20pm Aspen/Bighorn Room

Coupled Atmosphere – Mixed Layer Ocean Response to the Kuroshio Extension Ocean Heat Transport Variation by Young-Oh Kwon of WHOI

4:20pm - 4:40pm Aspen/Bighorn Room

Shutdown of the Atlantic Thermohaline Circulation and its Impact on North Pacific Climate by Yuko Okumura of NCAR

4:40pm - 5:00pm Aspen/Bighorn Room Drought Experiment Design; CVWG Business by CVWG Co-chairs Sumant Nigam of University of Maryland, College Park and Clara Deser of NCAR CGD

Special Concurrent Evening Sessions

5:30pm - 7:30pm Tarn Room DART-CAM Informal Meeting by Kevin Raeder of NCAR
5:30pm - 7:30pm Columbine Room Cloud Macrophysics in CAM by Andrew Gettelman of NCAR
5:30pm - 7:30pm Aspen/Bighorn Room DOE SciDAC Meeting by John Drake of ORNL

Thursday, June 21, 2007:

7:00am - 6:30 pm Forest Room Poster Session
7:00am - 8:30am Atrium Lobby, Lounge Breakfast

Concurrent Session: Atmosphere Working Group

8:30am - 8:35am Ten Mile Room Opening Remarks by Leo Donner of NOAA GFDL
8:35am - 9:20am Ten Mile Room Do CAM3 Simulations Converge with Increasing Horizontal Resolution? by Dave Williamson of NCAR CGD
9:20am - 10:10am Ten Mile Room An Overview of Modifications in CAM3.5 by Rich Neale of NCAR CGD
10:10am - 10:30am Ten Mile Room Anticipated Changes for CAM4 Part 1 by Phil Rasch of NCAR CGD
10:30am - 11:00am   Break
11:00am - 11:30am Ten Mile Room Anticipated Changes for CAM4 Part 2 by Phil Rasch of NCAR CGD or designee(s)
11:30am - 12:00pm Ten Mile Room Open Discussion moderated by Minghua Zhang of Stony Brook University

Concurrent Session: Polar Climate Working Group

8:30am - 9:00am Tarn Room Topic: IPCC-AR4 Sea Ice Projections by Marika Holland of NCAR CGD
9:00am - 9:30am Tarn Room Topic: Melt Ponds and Delta-Eddington Radiation in CCSM by Dave Bailey of NCAR
9:30am - 10:00am Tarn Room Topic: Progress in Ice Sheet Modeling by Bill Lipscomb of Los Alamos National Laboratory
10:00am - 10:30am Tarn Room Topic: Mixing Ocean Tracers at High Latitudes by Elizabeth Hunke of Los Alamos National Laboratory
10:30am - 11:00am   Break
11:00am - 11:30am Tarn Room Topic: Reliability of Sea Ice Simulations in GCMs by Eric DeWeaver of the University of Wisconsin, Madison
11:30am - 12:00pm Tarn Room Discussion

Concurrent Session: Paleoclimate Working Group

8:30am - 8:45am Aspen/Bighorn Room CCSM Paleo Updates by Kiehl & Liu
8:45am - 9:00am Aspen/Bighorn Room Simulated Modes of Variability at the Latest Permian by Christine Shields of NCAR
9:00am - 9:15am Aspen/Bighorn Room Simulation of the Cretaceous by Nan Rosenbloom of UCAR CGD
9:15am - 9:30am Aspen/Bighorn Room Report on the PETM Model Data Intercomparison Workshop by Cindy Shellito of the University of Northern Colorado
9:30am - 9:45am Aspen/Bighorn Room Sensitivity of the Ocean to Glacial Conditions: PMIP2 Climate Model Intercomparisons and Data Constraints by Bette Otto-Bliesner of NCAR CGD
9:45am - 10:00am Aspen/Bighorn Room Extreme Climate Conditions in Sweden: A 100,000 Time by Jenny Brandefelt of Stockholm University
10:00am - 10:15am   Simulating North Africa Climate-ecosystem in the Holocene in FOAM-LPJ by Zhengyu Liu of the University of Wisconsin-Madison
10:15am - 10:30am Aspen/Bighorn Room Evaluation of Regional Climate Variability and Response to Natural Forcing in CCSM and its Implications for the Future by Caspar Ammann of NCAR CGD
10:30am - 11:00am Aspen/Bighorn Room Break
11:00am - 12:00pm Aspen/Bighorn Room Discussion on Paleo WG CSL Proposal

General Sessions

12:00pm - 1:30 pm   Lunch, on your own
1:30pm - 2:00pm Ten Mile Room Wrap Up Discussion
2:00pm - 3:00pm Ten Mile Room Future Plans and Open Discussion
3:00pm - 5:00pm Forest Room Poster Tear Down


Registration Fee

There is a registration fee of $100 to attend the 12th Annual CCSM Workshop, payable by credit card during the on-line registration process. (This fee is waived for CGD staff and CCSM committee members.)

Poster Session

There will be a poster session Tuesday, Wednesday, and Thursday for attendees to highlight their work. Guests will be free to visit the posters throughout the day and those submitting posters are encouraged to find times to "man" their posters and speak with guests (this will be informal). Posters must fit in a 4' x 4' space. You may mount your poster by Velcro or use thumbtacks. You will have an opportunity to enter your title, authors, and a brief abstract in the on-line registration.

Browse the abstracts.

Travel Assistance

The deadline for requesting travel assistance has passed. We regret that we are unable to accept requests from this point forward. Those who have requested travel assistance will be notified of their status in May.


The town of Breckenridge has a lot to offer--the beautiful mountain setting, a variety of restaurants, shopping, golf, hiking, 4 wheeling, horseback riding, kayaking, hot air balloon rides, and several spas, to name just some of the highlights. We think you'll enjoy your free time.

The workshop will be held at the Village at Breckenridge. The majority of our sessions will be held in the Liftside Inn Building. Final locations will be available on the agenda closer to meeting time.  

The Village at Breckenridge
535 South Park Avenue
P.O. Box 8329
Breckenridge, CO 80424
Front Desk: 970-453-5192
Fax: 970-453-5116

Lodging and Ground Transportation

Most guests will fly into Denver International Airport on June 18th, flying out on June 21st. Ground transportation between DIA and the workshop site is available through Colorado Mountain Express; instructions for making reservations will follow your on-line registration. Lodging will be provided by the Village at Breckenridge; instructions for making reservations for lodging will also be sent out following your on-line registration.

Attendees who have requested travel assistance or whose travel is otherwise covered by CCSM should not make travel arrangements until they have received confirmation of their acceptance to the workshop by e-mail.


Please let us know asap about cancellations. Registration fees cannot be refunded for reservations canceled after May 16th, 2007.


We are unfortunately not able to provide interpreters for international guests.

Some guests may wish to bring their families along. We will do our best to accommodate these requests. You may indicate this during the on-line registration.

Any special needs may also be indicated during the registration process.

For questions or comments on this page, please contact

Last updated: 4/9/07 EAD

CCSM is sponsored by the National Science Foundation (NSF) and the U.S. Department of Energy (DOE). CCSM is a project within the Climate & Global Dynamics Division (CGD) of the Earth and Sun Systems Laboratory (ESSL) at the National Center for Atmospheric Research (NCAR). NCAR is managed by the University Corporation for Atmospheric Research (UCAR).

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