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CCSM Working Group Meeting Presentations

Winter 2007

Atmosphere Model Working Group Meeting, January 29 to 31, 2007, agenda

  • Welcome, Status of CAM3 development, and meeting plan (Phil Rasch, NCAR)
  • Update on the global performance of the UW moist turbulence and shallow convection schemes in CAM (Chris Bretherton, University of Washington)
  • Aerosol Indirect Effects in CAM and MIRAGE (Steve Ghan, Pacific Northwest Laboratory)
  • Double Moment Microphysics with Aerosol Interactions in CAM (Andrew Gettleman, NCAR; Hugh Morrison, NCAR; and Steve Ghan, PNL)
  • Impact of modifications of convection schemes on CAM3 and CCSM3 simulations (Jadwiga Richter, NCAR; and Rich Neale, NCAR)
  • Improved Climate Simulations with Modified Convection Scheme: What's next? (Xiaoquing Wu, Iowa State University)
  • Overview of CAM and CCSM results with three configurations (Rich Neale, NCAR)
  • Sensitivity in forecasts of candidate convection schemes at SGP (Dave Williamson, NCAR)
  • Sensitivity to the PBL and convection schemes in forecasts with CAM along the Pacific Cross-section (Cecile Hannay, NCAR)
  • Assessment of candidate convection schemes with short-range forecasts for TOGA-COARE (Steve Klein, LNNL; by Dave Williamson, NCAR)
  • CAM3 composite cyclone simulations (Paul Field, NCAR)
  • Systematic Error Reduction on CAM3.1 Sensitivity to CO2 Forcing using physical ensembles (Charles Jackson, University of Texas at austin)
  • Tropical biases in the CAM3 (Minghua Zhang, Stony Brook University; Phil Rasch, NCAR; and Leo Donner, GFDL)
  • Comparing CAM3 surface winds with observed 10-m surface winds (NASA's Seawinds 2000-2005) (Scott Capps and Charles Zender, UC Irvine)
  • Forcing fields derived from Arctic surface biases in CAM3 (Richard Grotjahn, UC Davis)
  • Polar cloud biases (Steve Vavrus, University of Wisconsin)
  • Polar cloud biases in CAM (Sungsu Park, University of Washington)
  • Understanding the Tropical Biases in GCMs: Double-ITCZ, ENSO, MJO and Convectively Coupled Equatorial Waves in AR4 models (Jialin Lin, NOAA CERES)
  • Comparison of the eastern tropical Pacific simulations in the IPCC AR4 coupled models (Simon de Szoeke, University of Hawaii)
  • Sensitivity of MJO to the CAPE lapse time in the NCAR CAM3 (Ping Liu, University of Hawaii)
  • Reducing a longstanding temperature bias in CAM using isentropic coordinates (Jack Chen, NCAR)
  • Testing New Parameterizations for Ice Particle Mass, Fall Velocity and Size Distribution in the CAM (David Mitchell, Desert Research Institute)
  • Examining the relationship between tropical precipitation and convergence in AGCM simulations (Julio Bacmeister, NASA GSFC)
  • Equivalent finite volume and spectral transform resolutions in CAM3 (Dave Williamson, NCAR)
  • High resolution Finite Volume CAM3 and CCSM3 simulations (Govindasamy Bala, LLNL)
  • Implementation of Grid Adaptation in CAM3: Comparison of dynamic cores, animation in .mov format Babatunde Joseph Abiodun, Iowa State University)
  • Using the DART-CAM Data Assimilation System to Diagnose Systematic Short-Term Forecast Error in CAM (Phil Rasch, Leo Donner, and Mingua Zhang of NCAR)

    Biogeochemistry Working Group Meeting, February 26 and 27, 2007, agenda

  • New IPCC approach to carbon cycles (Natalie Mahowald, NCAR)
  • CCSM-T31 fully coupled runs update (Keith Lindsay, NCAR)
  • CCSM-T31 updates, comparisons with land/atmosphere runs (Peter Thornton, NCAR)
  • Plans for CCSM3.5 coupling - physical model, spin up procedure, ocean BGC model (Keith Lindsay, NCAR)
  • Plans for CCSM3.5 coupling: status of CLM-CN simulation (Peter Thornton, NCAR)
  • Improvements in the ocean BEC model iron cycle (Keith Moore, UC Irvine)
  • Ocean acidification from atmospheric deposition of anthropogenic nitrogen and sulfur (Scott Doney, WHOI)
  • Impact of mixing and Southern Ocean winds on atmospheric CO2 (Irina Marinov, WHOI)
  • Evaluating CO2 in land and ocean models (Cindy Nevison, NCAR)
  • Human perturbations to iron deposition (Natalie Mahowald, NCAR)
  • CLAMP introduction, methodology and metrics (Jim Randerson, UC Irvine)
  • Update on status (Forrest Hoffman, ORNL)
  • Carbon tracker

    Land Model Working Group Meeting, February 27 and 28, 2007, agenda

  • CLM development activities and plans (Dave Lawrence, NCAR)
  • BTRAN, effective nitrogen limitation (Peter Thornton, NCAR)
  • Tower sites (Reto Stockli, ETH)
  • Richard's equation, canopy roughness in semi-arid (Mark Decker, U Arizona)
  • Fine mesh (Dave Gochis, NCAR)
  • Prognostic canopy airspace (Sam Levis, NCAR and Forrest Hoffman, ORNL)
  • Snow cover impact on climate sensitivity (Sam Levis, NCAR)
  • Snow radiation and snow age (Mark Flanner, UC Irvine)
  • Snow cover fraction, snow interception (Guo-Yue Niu, U Texas)
  • Snow burial fraction (Mark Decker, U Arizona)
  • Organic soil and deeper soil column (Dave Lawrence, NCAR)

    Chemistry Working Group Meeting, February 26 and 27, 2007, agenda

  • Introduction, Meeting Goals, and Discussion (Peter Hess, NCAR)
  • Model status and news (Hess)
  • Update on new physics on chemistry (Phil Rasch, NCAR)
  • Effects of physics on chemistry (Hess)
  • Progress on aerosol indirect effect in CAM (Xiaohong Liu, PNNL)
  • New Stratiform Cloud Microphysics and Cloud Aerosol Interactions in CAM (Andrew Gettelman, NCAR)
  • Sensitivity of direct effect to aerosol treatment (Hess)
  • Update on CAM/CLM Biogenic VOC Emissions and Secondary Organic Aerosols (Colette Heald, U CA, Berkeley)
  • Clouds and photolysis (Jessica Neu, Univ. CA, Irvine)
  • Developments at UCI (Michael Prather, Univ. CA, Irvine)
  • CAM with Chemistry at Lawrence Livermore (Philip Cameron-Smith, LLNL)
  • Changing emissions and climate CCSP report (Lamarque)
  • Constraining tropospheric CO using ensemble-based data assimilation (Avelino Arellano, NCAR)
  • POP ocean emissions (Scott Elliot, LANL)
  • Historical emissions (Claire Granier, CIRES/CU)
  • Climate sensitivity and variability with models extending into the middle atmosphere (Fabrizio Sassi, NCAR)
  • Atmospheric response to solar and geomagnetic forcing (Dan Marsh, NCAR)
  • Impact of climate change on ozone recovery (Doug Kinnison, NCAR)
  • 3-D Microphysical Simulations of Meteoric Dust (Charles Bardeen, LASP/CU)
  • Catastrophic ozone loss following a regional nuclear conflict (Mike Mills)

    Joint Session: Land, Chemistry, Biogeochemistry, February 27, 2007, agenda

  • Modeling methane (Inez Fung, UC Berkeley)
  • River Routing (Jay Famiglietti, UC Irvine)
  • Catchment-based modeling (Gopi Goteti, UC Irvine)
  • Groundwater and overland flow (Reed Maxwell/Stefan Kollet, LLNL)
  • Riverine transport of nutrients (Cindy Nevison, NCAR)
  • Impacts of irrigation on climate (Bill Sacks, U Wisconsin)
  • Irrigation (Zong-Liang Yang, U Texas)
  • Land cover change (Johann Feddema, U Kansas)
  • Biogeochemical and economic model drivers (Atual Jain, U Illinois)

    Polar Climate Working Group Meeting, March 12 and 13, 2007, agenda, meeting report

    The PolarWG has decided not to make presentations available.

  • Long-Term Interactions between Ice Sheets and Climate under Anthropogenic Greenhouse Forcing – Simulations with Two Complex Earth System Models (Miren Vizcaino)
  • A Dynamic Greenland Ice Sheet in CCSM (Bill Lipscomb)
  • Simulating Terrestrial High-Latitude Climate Change Feedbacks (Dave Lawrence)
  • Applications of CCSM3 Models for Predicting the 21st Century Distribution of Ice-Dependent Marine Mammals: An Example for Polar Bears (George Durner)
  • The Effect of Cloud Biases on Arctic Climate Sensitivity in CCSM3 (Steve Vavrus)
  • Influence of Arctic Sea Ice Reductions on Extratropical Cyclone Activity (Joel Finnis)
  • The Transient Atmospheric Response to SST and Ice Anomalies (Bob Tomas)
  • Atmospheric Circulation Response to Projected Arctic Sea Ice Concentrations in the late 21st century (Clara Deser)
  • The Puzzle of Modeling the Surface Sensible Heat Flux over Snow-Covered Sea Ice (Ed Andreas)
  • Decadal Variability of the Meridional Overturning Circulation in CCSM3 (Gokhan Danabasoglu)
  • Overview of CCSM4 and Development Timelines
  • The CCSM3.5 Model
  • Transition to CICE4.0 (Dave Bailey)
  • Space-Filling Curves in CICE4.0 (John Dennis)
  • Prospectus for Short Term Integrations
  • Status of CCSM4 Sea Ice Developments (DE SW; ponds)

    Software Engineering Working Group Meeting, March 16, 2007, agenda

  • CCSM Update (Peter Gent of UCAR CGD)
  • CSEG Update (Mariana Vertenstein of UCAR CGD)
  • ESMF Update (Cecelia Deluca of UCAR SCD)
  • SciDAC Update (Pat Worley of Oak Ridge National Laboratory)
  • Chip Multi-processors & You (John Dennis of UCAR SCD)
  • On the Road to a Sequential CCSM (Rob Jacob of Argonne National Laboratory)
  • HOMME Dycore Effort (Jim Edwards)
  • CLAMP Update (Forrest Hoffman of Oak Ridge National Laboratory), presentation no longer available
  • POP/ROMS Coupling ( Jon Wolfe of UCAR)

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    Last updated: 03/23/06 ELM, 4/16/07 EAD

    The Community Climate System Model (CCSM) is a fully-coupled, global climate model that provides state-of-the-art computer simulations of the Earth's past, present, and future climate states.

    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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